GFL Environmental (GFL) 40-F 23 Feb 24 2023 FY Annual report (Canada) Financial data

Cover

Cover	12 Months Ended
	Dec. 31, 2023 shares
Entity Information [Line Items]
Document Type	40-F
Document Registration Statement	false
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Document Fiscal Year Focus	2023
Entity File Number	001-39240
Entity Registrant Name	GFL Environmental Inc.
Entity Incorporation, State or Country Code	A6
Entity Primary SIC Number	4953
Entity Address, Address Line One	100 New Park Place,
Entity Address, Address Line Two	Suite 500
Entity Address, City or Town	Vaughan
Entity Address, State or Province	ON
Entity Address, Country	CA
Entity Address, Postal Zip Code	L4K 0H9
City Area Code	905
Local Phone Number	326-0101
Title of 12(b) Security	Subordinate voting shares
Trading Symbol	GFL
Security Exchange Name	NYSE
Annual Information Form	true
Audited Annual Financial Statements	true
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Auditor Name	KPMG LLP
Auditor Location	Toronto, ON, Canada
Auditor Firm ID	85
Entity Central Index Key	0001780232
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Amendment Flag	false
Business Contact
Entity Information [Line Items]
Entity Address, Address Line One	3411 Silverside Road
Entity Address, Address Line Two	Tatnall Building, Suite 104
Entity Address, City or Town	Wilmington
Entity Address, State or Province	DE
Entity Address, Postal Zip Code	19810
City Area Code	302
Local Phone Number	351-3367
Contact Personnel Name	Corporate Creations Network Inc
Subordinate voting shares
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding	359,349,904
Multiple voting shares
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding	11,812,964
Series A Perpetual Convertible Preferred Shares [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding	28,571,428
Series B Perpetual Convertible Preferred Shares [Member]
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding	8,196,721

Consolidated Statements of Oper

Consolidated Statements of Operations and Comprehensive (Loss) Income - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Consolidated Statements of Operations and Comprehensive (Loss) Income
Revenue	$ 7,515.5	$ 6,761.3
Expenses
Cost of sales	6,246.1	5,963.7
Selling, general and administrative expenses	973.9	730.4
Interest and other finance costs	627.2	489.3
(Gain) loss on sale of property and equipment	(13.1)	4.7
(Gain) loss on foreign exchange	(72.9)	217.7
Mark-to-market loss (gain) on Purchase Contracts	104.3	(266.8)
Gain on divestiture	(580.5)	(4.9)
Other	(23.2)	7.2
Total expenses by nature	7,261.8	7,141.3
Share of net (loss) income of investments accounted for using the equity method	(61.6)	20.7
Income (loss) before income taxes	192.1	(359.3)
Current income tax expense	357	4.4
Deferred tax recovery	(197.1)	(180.5)
Income tax expense (recovery)	159.9	(176.1)
Net income (loss) from continuing operations	32.2	(183.2)
Net loss from discontinued operations	0	(127.9)
Net income (loss)	32.2	(311.1)
Less: Net (loss) income attributable to non-controlling interests	(13.2)	0.7
Net income (loss) attributable to GFL Environmental Inc.	45.4	(311.8)
Items that may be subsequently reclassified to net income (loss)
Currency translation adjustment	(171.8)	449.5
Reclassification to net loss of fair value movements on cash flow hedges, net of tax	0	(0.4)
Fair value movements on cash flow hedges, net of tax	28.5	(64.9)
Share of other comprehensive loss of investments accounted for using the equity method	(0.4)	0
Reclassification to net income of foreign currency differences on divestitures	22.5	0
Other comprehensive (loss) income from continuing operations	(121.2)	384.2
Comprehensive (loss) income from continuing operations	(89)	201
Comprehensive loss from discontinued operations	0	(127.9)
Total comprehensive (loss) income	(89)	73.1
Less: Total comprehensive (loss) income attributable to non-controlling interests	(19.2)	0.9
Total comprehensive (loss) income attributable to GFL Environmental Inc.	$ (69.8)	$ 72.2
Basic and diluted loss per share
Basic loss per share continuing operations	$ (0.13)	$ (0.73)
Diluted loss per share continuing operations	(0.13)	(0.73)
Basic loss per share discontinued operations	0	(0.35)
Diluted loss per share discontinued operations		(0.35)
Total operations basic	(0.13)	(1.08)
Total operations diluted	$ (0.13)	$ (1.08)

Consolidated Statements of Fina

Consolidated Statements of Financial Position - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Assets
Cash	$ 135.7	$ 82.1
Trade and other receivables, net	1,080	1,118.1
Income taxes recoverable	47.7	0
Prepaid expenses and other assets	221.6	182.9
Current assets	1,485	1,383.1
Property and equipment, net	6,980.7	6,540.3
Intangible assets, net	3,056.3	3,245
Investments accounted for using the equity method	319	326.6
Other long-term assets	82.9	90.2
Deferred income tax assets	64.8	0
Goodwill	7,890.5	8,182.4
Non-current assets	18,394.2	18,384.5
Total assets	19,879.2	19,767.6
Liabilities
Accounts payable and accrued liabilities	1,679.1	1,557.7
Long-term debt	9.7	17.9
Lease obligations	59.6	51.5
Due to related party	5.8	9.3
Tangible equity units	0	1,024.9
Landfill closure and post-closure obligations	56.2	30.8
Current liabilities	1,810.4	2,692.1
Long-term debt	8,827.2	9,248.9
Lease obligations	383.4	327.3
Other long-term liabilities	39.1	47.5
Due to related party	2.9	8.7
Deferred income tax liabilities	534	582.6
Landfill closure and post-closure obligations	896	816.4
Non-current liabilities	10,682.6	11,031.4
Total liabilities	12,493	13,723.5
Shareholders' equity
Share capital	9,835.1	8,640.3
Contributed surplus	149.5	109.6
Deficit	(2,822.6)	(2,843)
Accumulated other comprehensive income	15.1	130.3
Total GFL Environmental Inc.'s shareholders' equity	7,177.1	6,037.2
Non-controlling interests	209.1	6.9
Total shareholders' equity	7,386.2	6,044.1
Total liabilities and shareholders' equity	$ 19,879.2	$ 19,767.6

Consolidated Statements of Chan

Consolidated Statements of Changes in Shareholders' Equity - CAD ($) $ in Millions	Total	Share capital	Contributed surplus	Deficit	Cash flow hedges, net of tax	Currency translation	Non-controlling interests	Total
Equity at beginning of period (in shares) at Dec. 31, 2021		375,061,066
Equity at beginning of period at Dec. 31, 2021	$ 5,776.1	$ 8,462.9	$ 77.4	$ (2,510.5)	$ 13.2	$ (266.9)		$ 5,776.1
Net loss and comprehensive income	72.2			(311.8)	(65.3)	449.3	$ 0.9	73.1
Dividends issued and paid	(20.7)			(20.7)				(20.7)
Share capital issued upon acquisition of subsidiary	154.5	$ 154.5						154.5
Share capital issued upon acquisition of subsidiary (in shares)		3,976,434
Share capital issued on exercise of share options		$ 3.7	(3.7)
Share capital issued on settlement of RSUs		$ 19.4	(19.4)
Share capital issued on exercise of share options (In Shares)		450,000
Share capital issued on settlement of RSUs (In Shares)		731,290
Shares capital issued on TEU conversion (in shares)		297
Share-based payments	55.1		55.1					55.1
Non-controlling interests measured upon acquisition of subsidiary							6	6
Cancelled shares		$ (0.2)	0.2
Cancelled shares (in shares)		(8,057)
Equity at end of period (in shares) at Dec. 31, 2022		380,211,030
Equity at end of period at Dec. 31, 2022	6,037.2	$ 8,640.3	109.6	(2,843)	(52.1)	182.4	6.9	6,044.1
Net loss and comprehensive income	(69.8)			45.4	28.5	(143.7)	(19.2)	(89)
Dividends issued and paid	(25)			(25)				(25)
Share capital issued on settlement of RSUs		$ 84.9	(84.9)
Share capital issued on settlement of RSUs (In Shares)		2,053,782
Shares capital issued on TEU conversion	1,109.9	$ 1,109.9						1,109.9
Shares capital issued on TEU conversion (in shares)		25,666,465
Share-based payments	124.8		124.8					124.8
Non-controlling interests measured upon acquisition of subsidiary							213.3	213.3
Contribution from non-controlling interests							8.1	8.1
Cancelled shares (in shares)		(260)
Equity at end of period (in shares) at Dec. 31, 2023		407,931,017
Equity at end of period at Dec. 31, 2023	$ 7,177.1	$ 9,835.1	$ 149.5	$ (2,822.6)	$ (23.6)	$ 38.7	$ 209.1	$ 7,386.2

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Operating activities
Net income (loss)	$ 32.2	$ (311.1)
Adjustments for non-cash items
Depreciation of property and equipment	1,004.4	1,008.7
Amortization of intangible assets	485.3	516.8
Share of net loss (income) of investments accounted for using the equity method	61.6	(20.7)
Gain on divestiture	(580.5)	(4.9)
Other	(23.2)	7.2
Impairment related to discontinued operations	0	121.3
Interest and other finance costs	627.2	492.8
Share-based payments	124.8	55.1
(Gain) loss on unrealized foreign exchange on long-term debt and TEUs	(72.1)	216.9
(Gain) loss on sale of property and equipment	(13.1)	4.7
Mark to market loss (gain) on Purchase Contracts	104.3	(266.8)
Current income tax expense	357	4.5
Deferred tax recovery	(197.1)	(175.6)
Interest paid in cash on Amortizing Notes component of TEUs	(0.2)	(2)
Interest paid in cash, excluding interest paid on Amortizing Notes	(517.1)	(413.2)
Income taxes paid in cash, net	(411.6)	(24.4)
Changes in non-cash working capital items	31	(85.5)
Landfill closure and post-closure expenditures	(32.5)	(27.5)
Cash flows from (used in) operating activities	980.4	1,096.3
Investing activities
Purchase of property and equipment	(1,055.1)	(765.2)
Proceeds from disposal of assets and other	61.8	22.4
Proceeds from divestitures	1,649.2	341.7
Business acquisitions and investments, net of cash acquired	(966.3)	(1,333.1)
Cash flows from (used in) investing activities	(310.4)	(1,734.2)
Financing activities
Repayment of lease obligations	(116)	(69.8)
Issuance of long-term debt	4,972.3	1,656.4
Repayment of long-term debt	(5,365.1)	(904.5)
Proceeds from termination of hedged arrangements	17.3	0
Payment of contingent purchase consideration and holdbacks	(31.2)	(18.5)
Repayment of Amortizing Notes	(15.7)	(58.4)
Dividends issued and paid	(25)	(20.7)
Payment of financing costs	(38.2)	(2.7)
Repayment of loan to related party	(9.3)	(12.8)
Contribution from non-controlling interests	8.1	0
Cash flows from (used in) financing activities	(602.8)	569
Increase (decrease) in cash	67.2	(68.9)
Changes due to foreign exchange revaluation of cash	(13.6)	(39.4)
Cash, beginning of year	82.1	190.4
Cash, end of year	$ 135.7	$ 82.1

REPORTING ENTITY

REPORTING ENTITY	12 Months Ended
	Dec. 31, 2023
REPORTING ENTITY
REPORTING ENTITY	1. REPORTING ENTITY GFL Environmental Inc. (“GFL” or the “Company”) was formed on March 5, 2020 under the laws of the Province of Ontario. GFL’s subordinate voting shares trade on the New York Stock Exchange and the Toronto Stock Exchange under the symbol “GFL”. GFL is in the business of providing non-hazardous solid waste management and environmental services. These services are provided through GFL and its subsidiaries and a network of facilities across Canada and the United States. GFL’s registered office is Suite 500, 100 New Park Place, Vaughan, ON, L4K 0H9. These audited consolidated financial statements (the “Annual Financial Statements”) include the accounts of GFL and its subsidiaries as at December 31, 2023. The Board of Directors approved the Annual Financial Statements on February 20, 2024.

SUMMARY OF MATERIAL ACCOUNTING

SUMMARY OF MATERIAL ACCOUNTING POLICIES	12 Months Ended
	Dec. 31, 2023
SUMMARY OF MATERIAL ACCOUNTING POLICIES
SUMMARY OF MATERIAL ACCOUNTING POLICIES	2. SUMMARY OF MATERIAL ACCOUNTING POLICIES Basis of presentation These Annual Financial Statements have been prepared in accordance with International Financial Reporting Standards (“IFRS”), as issued by the International Accounting Standards Board (“IASB”). Basis of measurement These Annual Financial Statements were prepared on the historical cost basis except for certain financial instruments that are measured at fair value at the end of the reporting period (see Note 20). Presentation and functional currency These Annual Financial Statements are presented in Canadian dollars which is GFL’s functional currency. Basis of consolidation Subsidiaries are entities controlled by GFL. Control exists when GFL has power over an entity, exposure or rights to variable returns from GFL’s involvement with the entity, and the ability to use its power over the entity to affect the amount of GFL’s returns. The financial accounts and results of subsidiaries are included in these Annual Financial Statements of GFL from the date that control commences until the date that control ceases. When necessary, adjustments are made to the financial statements of subsidiaries to bring their accounting policies into line with GFL’s accounting policies. All intercompany assets and liabilities, equity, income, expenses and cash flows relating to transactions between GFL and its subsidiaries are eliminated in full on consolidation. Business combinations Acquisitions of subsidiaries and businesses are accounted for using the acquisition method with the results of operations consolidated with those of GFL from the date of acquisition. The consideration for each acquisition is measured as the aggregate of the fair values of assets given, liabilities incurred or assumed and the equity instruments issued by GFL in exchange for control of the acquired company or business. Acquisition-related costs are recognized in the consolidated statement of operations as incurred. GFL’s growth strategy is to focus on generating organic growth from all of its operating segments. In addition to organic growth, GFL deploys an active acquisition strategy involving the integration of acquired businesses into each of its operating segments through integration of property and equipment, back office functions, improving route density and realignment of disposal alternatives to effect synergies and maximize profits. Goodwill arising from acquisitions is largely attributable to the assembled workforce of the acquisitions, the potential synergies with the acquiree, and intangible assets that do not qualify for separate recognition. The determination of the fair values of acquired intangible assets and acquired landfill assets requires GFL to make significant estimates and assumptions. The significant assumptions used to value acquired intangible assets and acquired landfill assets include, among others, future expected cash flows and discount rate. Equity accounting for joint arrangements and associates Associates are all entities over which GFL has significant influence but not control or joint control. Investments in associates are accounted for using the equity method of accounting after initially being recognized at cost. Joint arrangements are classified as either joint operations or joint ventures. The classification depends on contractual rights and obligations of each investor, rather than the legal structure of the joint arrangement. Interests in joint ventures are accounted for by GFL using the equity method, after initially being recognized at cost. An investment is considered to be impaired if there are objective evidences of impairments, as a result of one or more events that occurred after the initial recognition, and those events have negative impacts on the future cash flows of the investment that can be reliably estimated. The investment is reviewed at each balance sheet date to determine whether there is any indication of impairment. Property and equipment Property and equipment are stated at cost, less accumulated depreciation and impairment. Assets are depreciated to residual values over their estimated useful lives, with depreciation commencing when an asset is ready for use. Significant parts of property and equipment that have different depreciable lives are depreciated separately. Judgment is used in determining the appropriate level of componentization. Depreciation is computed on a straight-line basis, unless otherwise stated, using the following useful lives: ​ ​ ​ Type of property and equipment Depreciation term Buildings and improvements ​ 10 to 30 years or term of lease Landfills ​ Units of production Vehicles 10 to 20 years Machinery and equipment 3 to 20 years Containers 5 to 10 years Right-of-use assets Shorter of lease term or life of underlying asset(s) ​ The costs of repair and maintenance activities are recognized in the consolidated statement of operations as incurred. Distinguishing major inspections and overhaul from repairs and maintenance in determining which costs are capitalized is a matter of management judgement. An item of property and equipment is de-recognized upon disposal or when no future economic benefits are expected to arise from the continued use of the asset. Any gain or loss arising on de-recognition of the asset (calculated as the difference between net disposal proceeds and the carrying amount of the asset) is included as a gain or loss in the consolidated statement of operations in the period the asset is de-recognized. Property and equipment are reviewed at the end of each reporting period to determine whether there is any indication of impairment. If the possibility of impairment is indicated, GFL will estimate the recoverable amount of the asset and record any impairment loss in the consolidated statement of operations. Assets under development are not depreciated until they are available for use. Landfill assets Landfill assets represent the cost of landfill airspace, including original acquisition cost and landfill construction and development costs, incurred during the operating life of the site. Landfill assets also include capitalized landfill closure and post-closure costs, net of accumulated amortization, and the cost of either new or landfill expansion permits. The original cost of landfill assets, together with incurred and projected landfill construction and development costs, is amortized on a per unit basis as landfill airspace is consumed. Landfill assets are amortized over their total available disposal capacity representing the sum of estimated permitted airspace capacity (having received the final permit from the governing authorities) plus future permitted airspace capacity, representing an estimate of airspace capacity that management believes is probable of being permitted based on the following criteria: ● Personnel are actively working to obtain the permit or permit modifications necessary for expansion of an existing landfill, and progress is being made on the project; ● It is probable that the required approvals will be received within the normal application and processing periods for approvals in the jurisdiction in which the landfill is located; ● GFL has a legal right to use or obtain land associated with the expansion plan; ● There are no significant known political, technical, legal or business restrictions or issues that could impair the success of the expansion effort; ● Management is committed to pursuing the expansion; and ● Additional airspace capacity and related costs have been estimated based on the conceptual design of the proposed expansion. GFL has been successful in receiving approvals for expansions pursued; however, there can be no assurance that GFL will be successful in obtaining approvals for landfill expansions in the future. Intangible assets Intangible assets are stated at cost, less accumulated amortization and impairment, and consist of customer lists, municipal and other commercial contracts, trade name, licenses and permits, non-compete agreements and Certificates of Approvals or Environmental Compliance Approvals (“C of A”). C of As provide GFL with certain waste management rights in the province or state of issuance. C of As that do not expire are considered to have an indefinite life and therefore are not subject to amortization. C of As that relate to a leased facility are amortized over the lease term. Amortization is based on the estimated useful life using the following methods and rates: ​ ​ ​ ​ ​ Type of intangible asset ​ Amortization term Indefinite life C of A ​ ​ ​ Indefinite Customer lists and municipal contracts ​ Straight-line ​ 5 to 10 years Trade name, definite life C of A and other assets Straight-line 1 to 15 years Non-compete agreements Straight-line 5 years ​ Intangible assets with indefinite useful lives are tested at least annually, at the cash-generating unit (“CGU”) level for impairment. The assessment of indefinite life is reviewed annually to determine whether the indefinite life assessment continues to be supportable. If not, the change in the useful life assessment from indefinite to finite is made on a prospective basis. Intangible assets with finite lives are amortized over the useful economic life on a straight-line basis and assessed for impairment whenever there is an indication that the intangible asset may be impaired. Amortization expense is included as part of cost of sales. Goodwill Goodwill arising on an acquisition of a business represents the excess of the purchase price over the fair value of the net identifiable assets of the acquired business. Goodwill is carried at cost as established at the date of acquisition of the business less accumulated impairment losses, if any. For the purpose of impairment testing, goodwill acquired in a business combination is, from the acquisition date, allocated to CGUs based on the lowest level within the entity in which the goodwill is monitored for internal management purposes. The allocation is made to those CGUs that are expected to benefit from the business combination in which the goodwill arose. GFL tests its goodwill for impairment at the operating segment level. Any potential impairment of goodwill is identified by comparing the recoverable amount of a CGU to its carrying value. Goodwill is reduced by the amount of deficiency, if any. If the deficiency exceeds the carrying amount of goodwill, the carrying values of the remaining assets in the CGUs are reduced by the excess on a pro-rata basis. GFL tests goodwill for impairment annually or more frequently if there are indications of impairment. The recoverable amount of a CGU is the higher of the estimated fair value less costs of disposal or value-in-use of the CGU. In assessing value-in-use, the estimated future cash flows are discounted using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the CGU. Landfill closure and post-closure obligations GFL recognizes the estimated liability for an asset retirement obligation (“ARO”) that results from acquisition, construction, development or normal operations in the year in which it is incurred. Costs associated with capping, closing and monitoring a landfill or portions of a landfill, after it ceases to accept waste, are initially measured at the discounted future value of the estimated cash flows over the landfill’s operating life. The operating life represents the period over which the landfill receives waste. This value is capitalized as part of the cost of the related asset and amortized over the asset’s useful life. The determination of the obligations requires GFL to make significant estimates and assumptions. The significant assumptions include the estimates of future expenditures of landfill capping, closure and post-closure activities, which are prepared by internal and third-party engineering specialists and reviewed at least once annually and consider, amongst other things, regulations that govern each site. The estimated liabilities are valued using present value techniques that consider and incorporate assumptions and considerations marketplace participants would use in the determination of those estimates, including inflation, markups, inherent uncertainties due to the timing of work performed, information obtained from third parties, quoted and actual prices paid for similar work and engineering estimates. Inflation assumptions are based on management’s evaluation of current and future economic conditions and the expected timing of these expenditures. Estimates are discounted applying the risk-free rate, which is a rate that is essentially free of default risk. In determining the risk-free rate, consideration is given to both current and future economic conditions and the expected timing of expenditures. Revenue recognition GFL records revenue when control is transferred to the customer which is the time that the service is provided. Revenue is measured based on the consideration specified in a contract with a customer or consideration agreed by a customer. Revenue excludes amounts collected on behalf of third parties. GFL recognizes revenue from the following major sources: Collection and disposal of solid waste GFL generates revenue through fees charged for the collection of solid waste including recyclables, from its municipal, residential and commercial and industrial customers. Revenues from these contracts are influenced by a variety of factors including collection frequency, type of service, type and volume or weight of waste and type of equipment and containers furnished to the customer. Our municipal customer relationships are generally supported by contracts ranging from three three Certain future variable considerations of long-term customer contracts may be unknown upon entering into the contract, including the amount that will be billed in accordance with annual CPI, market costs for fuel and commodity prices. The amount to be billed is often tied to changes in an underlying base index such as a CPI or a fuel or commodity index, and revenue is recognized once the index is established for the future period. GFL does not disclose the value of unsatisfied performance obligations for these contracts as its right to consideration corresponds directly to the value provided to the customer for services completed to date and all future variable consideration is allocated to wholly unsatisfied performance obligations. In addition to handling GFL’s own collected waste volumes, its transfer stations, material recovery facilities (“MRFs”), landfills and organic waste processing facilities generate revenue from tipping fees paid to GFL by municipalities and third-party haulers and waste generators, processing fees, and the sale of recycled commodities. GFL also operates MRFs, transfer stations and landfills for municipal owners under a variety of compensation arrangements, including fixed fee arrangements or on a tonnage or other basis. Revenue is recognized at the time service is provided. Collection and disposal of liquid waste GFL generates revenue through fees charged for the collection, management, transportation, processing and disposal of a wide variety of industrial and commercial liquid wastes. Revenue is primarily derived from fees charged to customers on a per service, volume and/or hour basis. Revenues from these contracts are influenced by a variety of factors including timing of contract, type of service, type and volume of liquid waste and type of equipment used. Revenue in the liquid waste business is also derived from the stewardship return incentives paid by most Canadian provinces in which GFL has liquid waste operations, as well as from the sale of used motor oil, solvents and downstream products to third parties. The fees received from third parties are based on the market, type and volume of material sold. Revenue is recognized at the time when service is provided. Revenue recognized under these agreements is variable in nature based on volumes and commodity prices at the time of sale, which are unknown at contract inception. Share-based payments Share options issued by GFL as remuneration of its key employees, officers, and directors are settled in subordinate voting shares and are accounted for as equity-settled awards. The fair value of options granted is measured using either the Black-Scholes option pricing model or the Monte Carlo simulation methods, which rely on estimates of the expected risk-free interest rate, expected dividend payments, expected share price volatility, the value of GFL’s shares and the expected average life of the options. GFL believes these models adequately capture the substantive features of the option awards and are appropriate to calculate their fair values. The fair value of the options determined at the grant date is expensed over the vesting period using an accelerated method of amortization, with a corresponding increase to contributed surplus. Expense related to share-based payments is included as part of selling, general and administrative expense. Upon exercise of options, the amount recognized in contributed surplus for the awards and the cash received upon exercise are recognized as an increase in share capital. GFL has a long-term incentive plan (“LTIP”) to grant long-term equity-based incentives, including options, performance stock units (“PSUs”), restricted stock units (“RSUs”), and deferred share units (“DSUs”) to eligible participants. Each award represents the right to receive subordinate voting shares, or in the case of PSUs and RSUs, subordinate voting shares and/or cash, in accordance with the terms of the LTIP. The fair value of the RSUs and DSUs granted are based on the closing price of the subordinate voting shares on the day prior to the grant. The fair value of the RSUs and DSUs are recognized as compensation expense over the vesting period. Income taxes Income tax expense or recovery is comprised of current and deferred income taxes. It is recognized in the consolidated statement of operations, except to the extent that the expense relates to items recognized directly in equity. A current or non-current tax liability/asset is the estimated tax payable/receivable on taxable income for the period, and any adjustments to taxes payable with respect to previous periods. The liability method is used to account for deferred tax assets and liabilities, which arise from temporary differences between the carrying amount of assets and liabilities recognized in the consolidated statement of financial position and their corresponding tax basis. The carry forward of unused tax losses and credits are recognized to the extent that it is probable they can be used in the future. The carrying amount of deferred income tax assets is reviewed at each reporting date and reduced to the extent it is no longer probable that the deferred income tax asset will be recovered. Deferred income tax assets and liabilities are calculated at the tax rates that are expected to apply when the asset or liability is recovered or settled. Current and deferred tax assets and liabilities are calculated using tax rates that have been enacted or substantively enacted at the end of the reporting date. Where current tax or deferred tax arises from the initial accounting for a business combination, the tax effect is included in the accounting for the business combination. Deferred tax income liabilities are offset if a legally enforceable right exists to set off current income tax assets against current income tax liabilities and the deferred tax relates to the same taxable entity and the same taxation authority. Financial instruments Classification and measurement All financial assets and liabilities are recognized initially at fair value plus or minus transaction costs, except for financial instruments at fair value through profit or loss (“FVTPL”), for which transaction costs are expensed. Debt financial instruments are subsequently measured at FVTPL, fair value through other comprehensive income (“FVTOCI”), or amortized cost using the effective interest rate method. GFL determines the classification of its financial assets based on GFL’s business model for managing the financial assets and whether the instruments’ contractual cash flows represent solely payments of principal and interest on the principal amount outstanding. GFL’s derivatives designated as a hedging instrument in a qualifying hedge relationship are subsequently measured at FVTOCI. Equity instruments that meet the definition of a financial asset, if any, are subsequently measured at FVTPL or elected irrevocably to be classified at FVTOCI at initial recognition. Derivatives not designated in a qualified hedge relationship are measured at FVTPL. Financial liabilities are subsequently measured at amortized cost using the effective interest method or at FVTPL in certain circumstances or when the financial liability is designated as such. For financial liabilities that are designated as FVTPL, the amount of change in the fair value of the financial liability that is attributable to changes in GFL’s own credit risk of that liability is recognized in other comprehensive income or loss unless the recognition of the effects of changes in the liability’s credit risk in other comprehensive income or loss would create or enlarge an accounting mismatch in the consolidated statement of operations. The remaining amount of change in the fair value of the liability is recognized in the consolidated statement of operations. Changes in the fair value of a financial liability attributable to GFL’s own credit risk, if any, are recognized in other comprehensive income or loss and are not subsequently reclassified to the consolidated statement of operations; instead, they are transferred to retained earnings, upon de-recognition of the financial liability. All of GFL’s financial assets are categorized within the amortized cost measurement category. All of GFL’s financial liabilities, with the exception of deferred foreign exchange derivatives and the Purchase Contracts (as defined below), are also categorized within the amortized cost measurement category. Deferred foreign exchange derivatives, which qualify for hedge accounting, are categorized within the FVTOCI category and the Purchase Contracts, which is a financial liability with embedded derivative features, is categorized within the FVTPL category. Impairment GFL uses a forward-looking Expected Credit Loss (“ECL”) model to determine impairment of financial assets. ECLs are based on the difference between the contractual cash flows due in accordance with the contract and all the cash flows that GFL expects to receive. For trade receivables, GFL applies the simplified approach and has determined the allowance based on lifetime ECLs at each reporting date. GFL establishes a provision that is based on GFL’s historical credit loss experience, adjusted for forward-looking factors specific to the customers and the economic environment. Hedge accounting GFL is exposed to the risk of currency fluctuations and has entered into currency derivative contracts and is exposed to the risk of fuel price fluctuations and has entered into fuel derivative contracts to hedge a portion of this exposure on the basis of planned transactions. Where hedge accounting is applied, the criteria are documented at the inception of the hedge and updated at each reporting date. GFL documents the relationship between hedging instruments and hedged items, as well as its risk management objectives and strategy for undertaking the hedging transactions. GFL also documents its assessment, at hedge inception and on an ongoing basis, of whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in cash flows of hedged items. Basis of fair values Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value measurement is based on the presumption that the transaction to sell the asset or transfer the liability takes place either: ● In the principal market for the asset or liability, or ● In the absence of a principal market, in the most advantageous market for the asset or liability. GFL uses valuation techniques that it believes are appropriate in the circumstances and for which sufficient data are available to measure fair value, maximizing the use of relevant observable inputs and minimizing the use of unobservable inputs. All assets and liabilities for which fair value is measured or disclosed are categorized within the fair value hierarchy, described as follows, based on the lowest level input that is significant to the fair value measurement as a whole: Level 1 — quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 — inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly or indirectly. Level 3 — are unobservable inputs for the asset or liability. Unobservable inputs are used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at the measurement date. Critical accounting judgments and estimates The preparation of the Annual Financial Statements in conformity with IFRS requires management to make estimates, assumptions and judgments that affect the reported amounts of assets, liabilities, revenue and expense for the period. Such estimates relate to unsettled transactions and events as of the date of the Annual Financial Statements. Accordingly, actual results may differ from estimated amounts as transactions are settled in the future. Estimates and assumptions are reviewed on an ongoing basis. Revisions to estimates are applied prospectively. The following areas are the critical judgments and estimates that management has made in applying GFL’s accounting policies and that have the most significant effect on amounts recognized in the Annual Financial Statements: ● Determining the fair value of acquired assets and liabilities in business combinations, specifically the fair value of acquired intangible assets and acquired landfill assets ● Estimating the amount and timing of the landfill closure and post-closure obligations, specifically the estimated future expenditures associated with landfill capping, closure and post-closure activities ● Determining the key assumptions for impairment testing for long-lived assets Foreign currency translation Functional currency Items related to GFL’s subsidiaries are measured using the currency of the primary economic environment in which each entity operates (the functional currency). Foreign currency transactions are translated into the functional currency of each entity using the exchange rates prevailing at the date of the transactions or valuation when items are re-measured. Foreign exchange gains and losses resulting from the settlement of such transactions and from the remeasurement at period-end exchange rates of monetary assets and liabilities denominated in foreign currencies are recognized in the consolidated statement of operations. Foreign operations GFL’s foreign operations are conducted through its subsidiaries located in the United States of America (“US subsidiaries”), whose functional currency is the United States dollar. The assets and liabilities of these US subsidiaries are translated into the presentation currency of GFL using the exchange rate at the reporting date. Revenues and expenses are translated at the average exchange rate for the period. The resulting foreign exchange translation differences are recorded as a currency translation adjustment in other comprehensive income or loss. New and amended standards adopted A number of amended standards became applicable for the current reporting period. GFL was not required to change its accounting policies or make retrospective adjustments as a result of adopting the applicable amended standards. New accounting standards issued but not yet effective Certain new accounting standards and interpretations have been published that are not mandatory for the current period and have not been early adopted. For those standards and interpretations applicable to GFL, they are not expected to have a material impact on the Annual Financial Statements in future periods.

BUSINESS COMBINATIONS AND INVES

BUSINESS COMBINATIONS AND INVESTMENTS	12 Months Ended
	Dec. 31, 2023
BUSINESS COMBINATIONS AND INVESTMENTS
BUSINESS COMBINATIONS AND INVESTMENTS	3. BUSINESS COMBINATIONS AND INVESTMENTS For the year ended December 31, 2023, GFL acquired 39 businesses, each of which GFL considers to be individually immaterial. The following table presents the purchase price allocation based on the best information available to GFL to date: ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Net working capital, including cash acquired of $6.9 million and $48.1 million, respectively ​ $ (26.4) ​ $ 34.6 Property and equipment ​ ​ 469.5 ​ ​ 614.6 Intangible assets ​ 453.3 ​ 482.3 Goodwill ​ 529.8 ​ 526.4 Lease obligations ​ (29.7) ​ (19.3) Long-term debt ​ ​ (182.5) ​ ​ (64.1) Other long-term liabilities ​ (1.1) ​ (8.0) Landfill closure and post-closure obligations ​ (18.3) ​ (34.9) Deferred income tax liabilities ​ (83.5) ​ (52.4) ​ ​ ​ 1,111.1 ​ ​ 1,479.2 Less:Non-controlling interests ​ ​ — ​ ​ (6.0) Net assets acquired ​ $ 1,111.1 ​ $ 1,473.2 ​ ​ ​ ​ ​ ​ ​ Share capital in subsidiary issued ​ $ 7.4 ​ $ 154.5 Cash paid ​ ​ 897.8 ​ ​ 1,318.7 Contribution from non-controlling interests ​ 205.9 ​ — Total Consideration ​ $ 1,111.1 ​ $ 1,473.2 ​ In addition to the cash consideration noted above, during the year ended December 31, 2023, GFL paid $31.2 million in additional consideration related to acquisitions from prior years. GFL finalizes purchase price allocations relating to acquisitions within 12 months of the respective acquisition dates and, as a result, there may be differences between the provisional estimates reflected above and the final acquisition accounting. During the year ended December 31, 2023, GFL finalized the purchase price allocations for certain acquisitions resulting in an increase in net working capital of $15.4 million, a decrease in property and equipment of $31.0 million, an increase in intangible assets of $21.3 million, a decrease in lease obligations of $0.2 million, an increase in closure and post-closure obligations of $1.1 million, an increase in deferred income tax liabilities of $4.7 million and a decrease in goodwill of $0.1 million. Approximately $143.7 million of the goodwill acquired during the year ended December 31, 2023 ($279.2 million during the year ended December 31, 2022) is expected to be deductible for tax purposes. Since the respective acquisition dates, revenue and income before income taxes of approximately $209.1 million and $29.8 million, respectively, attributable to the 2023 acquisitions, are included in these Annual Financial Statements. Pro forma results of operations If the 2023 acquisitions had occurred on January 1, 2023, the unaudited consolidated pro forma revenue and income before income taxes for the year ended December 31, 2023 would have been $7,763.6 million and $234.3 million, respectively. The pro forma results do not purport to be indicative of the results of operations which would have resulted had the acquisitions occurred at the beginning of the year, nor are they necessarily indicative of future operating results. Investments in joint ventures and associates The following table presents the carrying value of GFL’s investments accounted for using the equity method for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Investment in associates ​ $ 229.1 ​ 272.1 Investment in joint ventures ​ 89.9 ​ 54.5 ​ ​ $ 319.0 ​ $ 326.6 ​ Associates During the year ended December 31, 2023, GFL made contributions of $19.0 million ($nil for the year ended December 31, 2022) to associates. GFL considers each associate to be individually immaterial. GFL has accounted for these investments in associates using the equity method. For the year ended December 31, 2023, GFL’s share of loss from continuing operations and total comprehensive loss from associates is $62.1 million ($21.1 million income from continuing operations and total comprehensive income for the year ended December 31, 2022). Joint ventures During the year ended December 31, 2023, GFL made contributions of $44.9 million ($47.6 million for the year ended December 31, 2022) to joint ventures. GFL considers each joint venture to be individually immaterial. GFL has accounted for these investments in joint ventures using the equity method. For the year ended December 31, 2023, GFL’s share of loss from continuing operations and total comprehensive loss from joint ventures is $nil ($0.4 million for the year ended December 31, 2022).

TRADE AND OTHER RECEIVABLES

TRADE AND OTHER RECEIVABLES	12 Months Ended
	Dec. 31, 2023
TRADE AND OTHER RECEIVABLES
TRADE AND OTHER RECEIVABLES	4. TRADE AND OTHER RECEIVABLES ​ The following table presents GFL’s trade and other receivables for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Trade ​ $ 1,019.1 ​ $ 1,054.4 Unbilled revenue ​ ​ 71.8 ​ ​ 68.1 Other ​ ​ 18.9 ​ ​ 16.8 Expected credit losses ​ (29.8) ​ (21.2) ​ ​ $ 1,080.0 ​ $ 1,118.1 ​ Trade receivables disclosed above include amounts that are past due at the end of the reporting period for which GFL has not recognized an expected credit loss as there has not been a significant change in credit quality and the amounts are still considered recoverable.

PREPAID EXPENSES AND OTHER ASSE

PREPAID EXPENSES AND OTHER ASSETS	12 Months Ended
	Dec. 31, 2023
PREPAID EXPENSES AND OTHER ASSETS
PREPAID EXPENSES AND OTHER ASSETS	5. PREPAID EXPENSES AND OTHER ASSETS ​ The following table presents GFL’s prepaid expenses and other assets for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Prepaid expenses and other assets ​ $ 123.4 ​ $ 98.7 Vehicle parts, supplies and inventory ​ ​ 98.2 ​ $ 84.2 ​ ​ $ 221.6 ​ $ 182.9 ​

PROPERTY AND EQUIPMENT

PROPERTY AND EQUIPMENT	12 Months Ended
	Dec. 31, 2023
PROPERTY AND EQUIPMENT
PROPERTY AND EQUIPMENT	6. PROPERTY AND EQUIPMENT ​ The following table presents the changes in cost and accumulated depreciation of GFL’s property and equipment for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Land, ​ ​ ​ ​ Machinery ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ buildings and ​ ​ ​ ​ ​ ​ ​ and ​ Assets under ​ ​ ​ ​ Right-of- ​ ​ ​ ​ improvements Landfills Vehicles equipment development Containers use assets Total Cost ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2021 ​ $ 1,482.7 ​ $ 2,257.0 ​ $ 2,082.0 ​ $ 1,129.0 ​ $ 69.3 ​ $ 549.3 ​ $ 348.7 ​ $ 7,918.0 Additions ​ ​ 80.3 ​ ​ 135.5 ​ ​ 297.5 ​ ​ 133.3 ​ ​ 119.2 ​ ​ 126.5 ​ ​ 104.2 ​ ​ 996.5 Acquisitions via business combinations ​ ​ 79.1 ​ ​ 220.6 ​ ​ 167.6 ​ ​ 44.2 ​ ​ 6.2 ​ ​ 77.5 ​ ​ 19.4 ​ ​ 614.6 Adjustments for prior year acquisitions ​ ​ — ​ ​ 122.0 ​ ​ (6.5) ​ ​ (0.7) ​ ​ — ​ ​ — ​ ​ 1.5 ​ ​ 116.3 Adjustments for asset retirement obligations ​ ​ — ​ ​ (183.1) ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ (183.1) Disposals ​ ​ (69.4) ​ ​ (57.1) ​ ​ (50.8) ​ ​ (254.2) ​ ​ (4.8) ​ ​ (1.0) ​ ​ (17.9) ​ ​ (455.2) Transfers ​ ​ 56.0 ​ ​ 94.2 ​ ​ 7.5 ​ ​ (1.4) ​ ​ (148.7) ​ ​ (3.2) ​ ​ (4.4) ​ ​ — Changes in foreign exchange ​ ​ 58.4 ​ ​ 156.0 ​ ​ 96.8 ​ ​ 31.3 ​ ​ 10.4 ​ ​ 39.9 ​ ​ 5.5 ​ ​ 398.3 Balance, December 31, 2022 ​ 1,687.1 ​ 2,745.1 ​ 2,594.1 ​ 1,081.5 ​ 51.6 ​ 789.0 ​ 457.0 ​ 9,405.4 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2022 ​ 1,687.1 ​ 2,745.1 ​ 2,594.1 ​ 1,081.5 ​ 51.6 ​ 789.0 ​ 457.0 ​ 9,405.4 Additions ​ 118.6 ​ 286.5 ​ 386.9 ​ 204.7 ​ 140.0 ​ 94.2 ​ 101.5 ​ 1,332.4 Acquisitions via business combinations ​ 81.0 ​ 120.1 ​ 112.8 ​ 79.8 ​ 0.5 ​ 45.6 ​ 29.7 ​ 469.5 Adjustments for prior year acquisitions ​ 12.5 ​ — ​ (0.2) ​ (0.4) ​ — ​ — ​ — ​ 11.9 Adjustments for asset retirement obligations ​ — ​ 22.5 ​ — ​ — ​ — ​ — ​ — ​ 22.5 Disposals ​ (74.2) ​ (45.2) ​ (250.9) ​ (48.1) ​ (6.5) ​ (57.3) ​ (21.3) ​ (503.5) Transfers ​ ​ 12.7 ​ ​ 13.2 ​ ​ 9.8 ​ ​ — ​ ​ (34.3) ​ ​ 0.3 ​ ​ (1.7) ​ ​ — Changes in foreign exchange ​ (25.5) ​ (64.6) ​ (45.7) ​ (15.6) ​ (2.6) ​ (18.9) ​ (3.0) ​ (175.9) Balance, December 31, 2023 ​ 1,812.2 ​ 3,077.6 ​ 2,806.8 ​ 1,301.9 ​ 148.7 ​ 852.9 ​ 562.2 ​ 10,562.3 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Accumulated depreciation ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2021 ​ 107.1 ​ 474.9 ​ 679.0 ​ 389.2 ​ — ​ 163.0 ​ 94.2 ​ 1,907.4 Depreciation ​ 65.2 ​ 294.6 ​ 302.9 ​ 167.7 ​ — ​ 97.5 ​ 73.0 ​ 1,000.9 Disposals ​ (18.5) ​ (7.8) ​ (31.0) ​ (104.3) ​ — ​ (0.8) ​ (7.2) ​ (169.6) Impairment ​ ​ 11.9 ​ ​ — ​ ​ — ​ ​ 2.3 ​ ​ — ​ ​ — ​ ​ — ​ ​ 14.2 Changes in foreign exchange ​ 5.3 ​ 42.4 ​ 36.4 ​ 13.4 ​ — ​ 12.8 ​ 1.9 ​ 112.2 Balance, December 31, 2022 ​ 171.0 ​ 804.1 ​ 987.3 ​ 468.3 ​ — ​ 272.5 ​ 161.9 ​ 2,865.1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2022 ​ 171.0 ​ 804.1 ​ 987.3 ​ 468.3 ​ — ​ 272.5 ​ 161.9 ​ 2,865.1 Depreciation ​ 70.0 ​ 283.8 ​ 288.3 ​ 166.8 ​ — ​ 116.3 ​ 74.8 ​ 1,000.0 Disposals ​ (13.7) ​ (19.8) ​ (132.0) ​ (28.3) ​ — ​ (26.9) ​ (11.5) ​ (232.2) Impairment ​ ​ — ​ ​ — ​ ​ 8.7 ​ ​ 0.1 ​ ​ — ​ ​ — ​ ​ — ​ ​ 8.8 Changes in foreign exchange ​ (3.1) ​ (22.8) ​ (18.3) ​ (7.1) ​ — ​ (7.7) ​ (1.1) ​ (60.1) Balance, December 31, 2023 ​ 224.2 ​ 1,045.3 ​ 1,134.0 ​ 599.8 ​ — ​ 354.2 ​ 224.1 ​ 3,581.6 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying amounts ​ ​ ​ ​ ​ ​ ​ ​ At December 31, 2022 ​ $ 1,516.1 ​ $ 1,941.0 ​ $ 1,606.8 ​ $ 613.2 ​ $ 51.6 ​ $ 516.5 ​ $ 295.1 ​ $ 6,540.3 At December 31, 2023 ​ $ 1,588.0 ​ $ 2,032.3 ​ $ 1,672.8 ​ $ 702.1 ​ $ 148.7 ​ $ 498.7 ​ $ 338.1 ​ $ 6,980.7 ​ For the year ended December 31, 2023, total depreciation of property and equipment was $1,004.4 million ($1,003.9 million for the year ended December 31, 2022). Of the total depreciation for the year ended December 31, 2023, $974.9 million was included in cost of sales ($974.8 million for the year ended December 31, 2022) and $29.5 million was included in selling, general and administrative expenses ($29.1 million for the year ended December 31, 2022). Depreciation of property and equipment of $1,004.4 million for the year ended December 31, 2023 ($1,008.7 million for the year ended December 31, 2022) as presented in the statement of cash flows was comprised of depreciation of $1,000.0 million ($1,000.9 million for the year ended December 31, 2022) shown in the table above and depreciation of $4.4 million ($7.8 million for the year ended December 31, 2022) due to the difference between the ARO calculated using the credit-adjusted, risk-free discount rate required for measurement of the ARO through purchase accounting, compared to the risk-free discount rate required for annual valuations.

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS	12 Months Ended
	Dec. 31, 2023
GOODWILL AND INTANGIBLE ASSETS
GOODWILL AND INTANGIBLE ASSETS	7. GOODWILL AND INTANGIBLE ASSETS ​ The following table presents the changes in cost and accumulated amortization of GFL’s goodwill and intangible assets for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trade name, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ definite life ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Customer lists C of A ​ ​ ​ ​ ​ ​ ​ ​ Indefinite life ​ and municipal ​ and other ​ Non-compete ​ ​ ​ ​ ​ Goodwill ​ C of A ​ contracts ​ licenses ​ agreements ​ Total Cost ​ ​ ​ ​ ​ ​ Balance, December 31, 2021 $ 7,501.1 $ 811.9 $ 3,219.7 $ 81.5 $ 550.0 ​ $ 12,164.2 Acquisitions via business combinations ​ 526.4 ​ 26.2 ​ 375.7 ​ 0.3 ​ 80.1 ​ ​ 1,008.7 Adjustments for prior year acquisitions ​ ​ 14.6 ​ ​ — ​ ​ (99.2) ​ ​ 20.7 ​ ​ (51.6) ​ ​ (115.5) Other ​ ​ — ​ ​ 0.3 ​ ​ 12.9 ​ ​ — ​ ​ 0.5 ​ ​ 13.7 Disposals ​ (188.5) ​ (2.8) ​ (22.6) ​ — ​ (43.1) ​ ​ (257.0) Changes in foreign exchange ​ 328.8 ​ 4.1 ​ 106.2 ​ 5.6 ​ 28.3 ​ 473.0 Balance, December 31, 2022 ​ ​ 8,182.4 ​ ​ 839.7 ​ ​ 3,592.7 ​ ​ 108.1 ​ ​ 564.2 ​ ​ 13,287.1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2022 ​ 8,182.4 ​ 839.7 ​ 3,592.7 ​ 108.1 ​ 564.2 ​ 13,287.1 Acquisitions via business combinations ​ 529.8 ​ 32.8 ​ 349.5 ​ 38.4 ​ 32.6 ​ ​ 983.1 Adjustments for prior year acquisitions ​ (38.5) ​ — ​ 17.2 ​ — ​ 1.1 ​ ​ (20.2) Other ​ — ​ — ​ 14.4 ​ — ​ — ​ ​ 14.4 Disposals ​ ​ (650.2) ​ ​ (9.7) ​ ​ (254.2) ​ ​ — ​ ​ (67.0) ​ ​ (981.1) Changes in foreign exchange ​ (133.0) ​ (1.8) ​ (45.5) ​ (3.0) ​ (10.1) ​ ​ (193.4) Balance, December 31, 2023 ​ 7,890.5 ​ 861.0 ​ 3,674.1 ​ 143.5 ​ 520.8 ​ 13,089.9 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Accumulated amortization ​ ​ ​ ​ ​ ​ Balance, December 31, 2021 ​ — ​ — ​ 1,101.4 ​ 21.0 ​ 210.7 ​ 1,333.1 Amortization ​ — ​ — ​ 403.2 ​ 9.8 ​ 103.8 ​ 516.8 Disposals ​ ​ — ​ ​ — ​ ​ (12.9) ​ ​ — ​ ​ (25.6) ​ ​ (38.5) Changes in foreign exchange ​ ​ — ​ ​ — ​ ​ 35.8 ​ ​ 1.8 ​ ​ 10.7 ​ ​ 48.3 Balance, December 31, 2022 ​ — ​ — ​ 1,527.5 ​ 32.6 ​ 299.6 ​ 1,859.7 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2022 ​ — ​ — ​ 1,527.5 ​ 32.6 ​ 299.6 ​ 1,859.7 Amortization ​ ​ — ​ ​ — ​ ​ 385.9 ​ ​ 6.9 ​ ​ 92.5 ​ ​ 485.3 Disposals ​ ​ — ​ ​ — ​ ​ (136.1) ​ ​ — ​ ​ (41.7) ​ ​ (177.8) Changes in foreign exchange ​ — ​ — ​ (17.8) ​ (0.8) ​ (5.5) ​ (24.1) Balance, December 31, 2023 ​ — ​ — ​ 1,759.5 ​ 38.7 ​ 344.9 ​ 2,143.1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying amounts ​ ​ ​ ​ ​ ​ At December 31, 2022 ​ $ 8,182.4 ​ $ 839.7 ​ $ 2,065.2 ​ $ 75.5 ​ $ 264.6 ​ $ 11,427.4 At December 31, 2023 ​ $ 7,890.5 ​ $ 861.0 ​ $ 1,914.6 ​ $ 104.8 ​ $ 175.9 ​ $ 10,946.8 ​ All intangible asset amortization expense is included in cost of sales. In assessing goodwill and indefinite life intangible assets for impairment at December 31, 2023 and 2022, GFL compared the aggregate recoverable amount of the assets included in CGUs to their respective carrying amounts. For all CGUs, the recoverable amount was determined based on the value in use by discounting estimated future cash flows from a CGU to their present value using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the CGU. Estimated cash flow projections are based on GFL’s one-year budget and five year strategic plan. There was no impairment recorded at the CGU level as at December 31, 2023 and 2022. The key assumptions used for both periods in determining the recoverable amount for each CGU are as follows: ● Revenue growth rates – Growth rate of 6.5% was used for the periods covered in the financial projections and is based on historical results and expectations for the forecasted periods. ● Pre-tax discount rates – The pre-tax discount rate calculation is based on the specific circumstances of the CGU and range from 7.7% to 8.6% ( 7.2% to 9.8% for the year ended December 31, 2022). ● Terminal growth value – The cash flows beyond the initial period are extrapolated using a growth rate of 2.2% . Rates are based on market and industry trends researched and identified by management. ● Capital expenditures – The cash flow forecasts for capital expenditures are based on past experience and include the ongoing capital expenditures required to maintain the business. In all CGUs, reasonably possible changes to key assumptions would not cause the recoverable amount of each CGU to fall below the carrying value.

ACCOUNTS PAYABLE AND ACCRUED LI

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	12 Months Ended
	Dec. 31, 2023
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES	8. ACCOUNTS PAYABLE AND ACCRUED LIABILITIES The following table presents GFL’s accounts payable and accrued liabilities for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Accounts payable ​ $ 711.0 ​ $ 656.7 Accrued liabilities ​ 529.8 ​ 426.9 Accrued interest ​ 89.3 ​ 88.8 Accrued payroll and benefits ​ 141.2 ​ 137.2 Deferred revenue ​ 207.8 ​ 248.1 ​ ​ $ 1,679.1 ​ $ 1,557.7 ​

LANDFILL CLOSURE AND POST-CLOSU

LANDFILL CLOSURE AND POST-CLOSURE OBLIGATIONS	12 Months Ended
	Dec. 31, 2023
LANDFILL CLOSURE AND POST-CLOSURE OBLIGATIONS
LANDFILL CLOSURE AND POST-CLOSURE OBLIGATIONS	9. LANDFILL CLOSURE AND POST-CLOSURE OBLIGATIONS ​ The following table presents GFL’s landfill closure and post-closure obligations for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Balance, beginning of year ​ $ 847.2 ​ $ 880.6 Acquisitions via business combinations ​ 18.3 ​ 34.9 Adjustment related to prior year acquisitions ​ — ​ (5.3) Disposals ​ ​ (15.0) ​ ​ (16.4) Provisions ​ ​ 94.9 ​ ​ 92.1 Adjustment for discount and inflation rates ​ 22.5 ​ (183.1) Accretion ​ 34.4 ​ 20.1 Expenditures ​ (32.5) ​ (27.5) Changes in foreign exchange ​ (17.6) ​ 51.8 Balance, end of year ​ 952.2 ​ 847.2 Less: Current portion of landfill closure and post-closure obligations ​ (56.2) ​ (30.8) Non-current portion of landfill closure and post-closure obligations ​ $ 896.0 ​ $ 816.4 ​ The present value of GFL’s future landfill closure and post-closure obligations has been estimated by management based on GFL’s cost, in today’s dollars, to settle closure and post-closure obligations at its landfills, projected timing of these expenditures and the application of discount and inflation rates. GFL used a risk-free discount rate of 3.02% in Canada and 4.03% in the United States as at December 31, 2023 (3.28% in Canada and 3.97% in the United States as at December 31, 2022) and an inflation rate of 2.60% in Canada and 2.82% in the United States (2.38% in Canada and 2.63% in the United States as at December 31, 2022) to calculate the present value of the landfill closure and post-closure obligations. Obligations acquired through business combinations are initially valued at fair value using a credit-adjusted, risk-free discount rate. Reducing the discount rate to the risk-free rate resulted in a one-time increase to the liability of $4.4 million included in the provisions line item in the table above for the year ended December 31, 2023 ($7.8 million for the year ended December 31, 2022). The landfill closure and post-closure obligations mature as follows: ​ ​ ​ ​ ​ Less than 1 year $ 56.2 Between 1-2 years ​ 121.3 Between 2-5 years ​ 188.6 Over 5 years ​ 586.1 ​ ​ $ 952.2 ​ Funded landfill post-closure assets GFL is required to deposit funds into trusts to settle post-closure obligations for landfills in certain jurisdictions. As at December 31, 2023, included in other long-term assets are funded landfill post-closure obligations, representing the fair value of legally restricted assets, totaling $28.3 million ($26.1 million as at December 31, 2022).

LONG-TERM DEBT

LONG-TERM DEBT	12 Months Ended
	Dec. 31, 2023
LONG-TERM DEBT
LONG-TERM DEBT	10. LONG-TERM DEBT The following table presents GFL’s long-term debt for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Revolving credit facility ​ $ 184.9 ​ $ 771.8 Term Loan A Facility ​ — ​ 500.0 Term Loan B Facility ​ 961.8 ​ 1,742.7 Notes (1) ​ ​ 4.250% USD senior secured notes (“4.250% 2025 Secured Notes”) (2) ​ 661.3 ​ 677.2 3.750% USD senior secured notes (“3.750% 2025 Secured Notes”) (3) ​ 992.0 ​ 1,015.8 5.125% USD senior secured notes (“5.125% 2026 Secured Notes”) (4) ​ 661.3 ​ 677.2 3.500% USD senior secured notes (“3.500% 2028 Secured Notes”) (5) ​ 992.0 ​ 1,015.8 6.750% USD senior secured notes (“6.750% 2031 Secured Notes”) (6) ​ 1,322.6 ​ — 4.000% USD senior notes (“4.000% 2028 Notes”) (7) ​ 992.0 ​ 1,015.8 4.750% USD senior notes (“4.750% 2029 Notes”) (8) ​ 992.0 ​ 1,015.8 4.375% USD senior notes (“4.375% 2029 Notes”) (9) ​ 727.4 ​ 744.9 Other ​ 347.3 ​ 75.0 Subtotal ​ 8,834.6 ​ 9,252.0 Discount ​ (9.6) ​ (5.5) Derivative liability ​ 90.9 ​ 79.9 Deferred finance costs ​ (79.0) ​ (59.6) Total long-term debt ​ 8,836.9 ​ 9,266.8 Less: Current portion of long-term debt ​ 9.7 ​ 17.9 Non-current portion of long-term debt ​ $ 8,827.2 ​ $ 9,248.9 ​ ​ ​ ​ ​ ​ ​ Total long-term debt ​ ​ 8,836.9 ​ ​ 9,266.8 Less: Derivative asset ​ ​ (20.0) ​ ​ (58.3) Total long-term debt, net of derivative asset ​ $ 8,816.9 ​ $ 9,208.5 ​ (1) Refer to Note 20 for additional information on the hedging arrangements related to the Notes. (2) The 4.250% 2025 Secured Notes bear interest semi-annually which commenced on December 1, 2020 with principal maturing on June 1, 2025. (3) The 3.750% 2025 Secured Notes bear interest semi-annually which commenced on February 1, 2021 with principal maturing on August 1, 2025. (4) The 5.125% 2026 Secured Notes bear interest semi-annually which commenced on December 15, 2019 with principal maturing on December 15, 2026. (5) The 3.500% 2028 Secured Notes bear interest semi-annually which commenced on September 1, 2021 with principal maturing on September 1, 2028. (6) The 6.750% 2031 Secured Notes bear interest semi-annually commencing on January 15, 2024 with principal maturing on January 15, 2031. (7) The 4.000% 2028 Notes are comprised of US$500.0 million of initial notes and US$250.0 million of additional notes. The initial notes and additional notes bear interest semi-annually which commenced on February 1, 2021 and February 1, 2022, respectively. The total principal matures on August 1, 2028. (8) The 4.750% 2029 Notes bear interest semi-annually which commenced on December 15, 2021 with principal maturing on June 15, 2029. (9) The 4.375% 2029 Notes bear interest semi-annually which commenced on February 15, 2022 with principal maturing on August 15, 2029. Revolving credit facility and term loan facility Under the amended and restated revolving credit agreement dated as of December 29, 2023 (the “Revolving Credit Agreement”), GFL has access to a $1,205.0 million revolving credit facility (available in Canadian and US dollars) and an aggregate US$75.0 million in revolving credit facilities (available in US dollars) (collectively, the “Revolving Credit Facility”). The Revolving Credit Facility matures on September 27, 2026 and accrues interest at a rate of SOFR/Bankers Acceptance plus 1.500% to 2.250% or Canadian/US prime plus 0.500% to 1.250%. The Revolving Credit Facility is secured by mortgages on certain properties, a general security agreement over all of the assets of GFL and certain material subsidiaries and a pledge of the shares of such subsidiaries. The Revolving Credit Agreement contains a Total Net Funded Debt to Adjusted EBITDA and an Interest Coverage Ratio (each as defined in the Revolving Credit Agreement) financial maintenance covenant. The Total Net Funded Debt to Adjusted EBITDA ratio to be maintained is equal to or less than 6.00 to 1.00 for a period of four complete fiscal quarters following completion of a Material Acquisition and at all other times, equal to or less than 5.75 to 1.00. The Interest Coverage Ratio must be equal to or greater than 3.00 to 1.00. As at December 31, 2023 and December 31, 2022, GFL was in compliance with these covenants. On December 7, 2023, GFL repaid all amounts outstanding under its $775.0 million term loan A facility (the “Term Loan A Facility”) previously available under its Revolving Credit Agreement. GFL has a term loan B facility (the “Term Loan B Facility”) that matures on May 31, 2027 and has a borrowing rate of SOFR (with a floor rate at 0.500%) plus 2.500% or US prime plus 1.500% (the “Term Loan B Facility”). The Term Loan B Facility is secured by mortgages on certain properties, a general security agreement over all the assets of GFL and certain material subsidiaries and a pledge of the shares of such subsidiaries. Other Included in other is the following long term debt: (a) promissory notes with an aggregate principal amount of US$50.0 million that mature on June 14, 2027 and bear interest at a rate of 5.000% per annum, payable quarterly; (b) a term loan of US$13.0 million ( all all Changes in long-term debt arising from financing activities The following table presents GFL’s opening balances of long-term debt reconciled to closing balances: ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Balance, beginning of year ​ $ 9,266.8 ​ $ 8,001.8 Cash flows ​ ​ ​ ​ Issuance of long-term debt ​ 4,972.3 ​ 1,656.4 Repayment of long-term debt ​ (5,365.1) ​ (904.5) Payment of financing costs ​ (38.2) ​ (2.7) Long-term debt via business combinations ​ ​ 182.5 ​ ​ 73.3 Proceeds from termination of swap instrument ​ ​ 17.3 ​ ​ — Non-cash changes ​ ​ Accrued interest and other non-cash changes ​ 7.4 ​ 16.0 Revaluation of foreign exchange ​ (217.1) ​ 504.3 Fair value movements on cash flow hedges ​ 11.0 ​ (77.8) Balance, end of year ​ $ 8,836.9 ​ $ 9,266.8 ​ Commitments related to long-term debt The following table presents GFL’s principal future payments on long-term debt: ​ ​ ​ ​ 2024 $ 9.7 2025 ​ 1,680.6 2026 ​ 855.8 2027 ​ 999.0 2028 ​ 2,247.5 Thereafter ​ 3,042.0 ​ ​ $ 8,834.6 ​

INTEREST AND OTHER FINANCE COST

INTEREST AND OTHER FINANCE COSTS	12 Months Ended
	Dec. 31, 2023
INTEREST AND OTHER FINANCE COSTS
INTEREST AND OTHER FINANCE COSTS	11. INTEREST AND OTHER FINANCE COSTS The following table presents GFL’s interest and other finance costs for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Interest ​ $ 532.7 ​ $ 427.1 Termination of hedged arrangements ​ ​ 8.7 ​ ​ — Amortization of deferred financing costs ​ 18.6 ​ 13.8 Accretion of landfill closure and post-closure obligations ​ 34.4 ​ 20.1 Other finance costs ​ 32.8 ​ 28.3 Interest and other finance costs ​ $ 627.2 ​ $ 489.3 ​

LEASE OBLIGATIONS

LEASE OBLIGATIONS	12 Months Ended
	Dec. 31, 2023
LEASE OBLIGATIONS
LEASE OBLIGATIONS	12. LEASE OBLIGATIONS ​ GFL leases several assets including buildings, property and equipment. The following table presents GFL’s future minimum payments under lease obligations for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Lease obligations $ 610.4 $ 480.1 Less: Interest ​ 167.4 ​ 101.3 ​ ​ 443.0 ​ 378.8 Less: Current portion of lease obligations ​ 59.6 ​ 51.5 Non-current portion of lease obligations ​ $ 383.4 ​ $ 327.3 ​ Lease obligations include $107.1 million of secured lease obligations as at December 31, 2023 ($120.4 million as at December 31, 2022). Interest expense in connection with lease obligations was $23.0 million for the year ended December 31, 2023 ($15.3 million for the year ended December 31, 2022). The following table presents principal and interest payments on future minimum lease payments under the lease obligations: ​ ​ ​ ​ ​ 2024 $ 85.5 2025 ​ 75.0 2026 ​ 142.0 2027 ​ 38.0 2028 ​ 33.3 Thereafter ​ 236.6 ​ ​ $ 610.4 ​

TANGIBLE EQUITY UNITS

TANGIBLE EQUITY UNITS	12 Months Ended
	Dec. 31, 2023
TANGIBLE EQUITY UNITS
TANGIBLE EQUITY UNITS	13. TANGIBLE EQUITY UNITS On March 5, 2020, GFL completed its offering of 15,500,000 6.00% tangible equity units (“TEUs”) for total gross proceeds of $1,040.7 million (US$775.0 million). Each TEU had a stated amount of US$50.00 and was comprised of a prepaid stock purchase contract (“Purchase Contract(s)”) and a senior amortizing note (“Amortizing Note(s)”) due March 15, 2023, both of which were freestanding instruments and separate units of account. Holders of the Purchase Contracts had the ability to elect to early convert such Purchase Contracts prior to the automatic conversion date of March 15, 2023, at the then-applicable minimum conversion rate. On March 15, 2023, GFL made the final payment related to the Amortizing Notes and the remaining outstanding Purchase Contracts were automatically converted into subordinate voting shares at a rate of 2.1940 subordinate voting shares per Purchase Contract. As at December 31, 2022, 11,698,543 Purchase Contracts were outstanding. The following table presents the respective components of the TEUs as at the dates indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Amortizing Notes ​ $ — ​ $ 15.5 Purchase Contracts ​ — ​ 1,009.4 ​ ​ — ​ 1,024.9 Less: Current portion of TEU ​ — ​ (1,024.9) Non-current portion of TEU ​ $ — ​ $ — ​

INCOME TAXES

INCOME TAXES	12 Months Ended
	Dec. 31, 2023
INCOME TAXES
INCOME TAXES	14. INCOME TAXES The following table presents GFL’s income tax reconciliations for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Income (loss) before income taxes ​ $ 192.1 ​ $ (359.3) Income tax expenses (recovery) at the combined basic federal and provincial tax rate (26.5% in 2023; and 26.5% in 2022) ​ 50.9 ​ (95.2) Decrease (increase) resulting from: ​ ​ ​ Permanent differences ​ 124.6 ​ (87.0) Variance between combined Canadian tax rate and the tax rate applicable to U.S. income ​ (0.7) ​ 3.7 (Recognition) de-recognition of deferred income tax assets ​ (15.8) ​ 1.2 Other ​ 0.9 ​ 1.2 Income tax expenses (recovery) ​ $ 159.9 ​ $ (176.1) ​ The effective income tax rates differ from the amount that would be computed by applying the combined federal and provincial statutory income tax rates to loss before income taxes. ​ Deferred income taxes Deferred income taxes represent the net tax effect of non-capital tax losses and temporary differences between the consolidated financial statement carrying amounts and the tax basis of assets and liabilities. The following table presents GFL’s deferred income tax assets and liabilities and their changes for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Recognized in ​ ​ ​ Balance, ​ Acquisitions ​ ​ ​ ​ ​ ​ ​ other ​ Balance, ​ ​ December ​ via business ​ Foreign ​ Recognized ​ comprehensive ​ December ​ ​ 31, 2022 ​ combinations ​ exchange ​ in net loss ​ loss ​ 31, 2023 Deferred income tax assets ​ ​ ​ ​ ​ ​ Non-capital loss carry forwards ​ $ 464.7 ​ $ — ​ $ (2.7) ​ $ (5.7) ​ $ — ​ $ 456.3 Landfill closures and post-closure obligations ​ 205.0 ​ — ​ (4.1) ​ 13.8 ​ — ​ 214.7 Accrued liabilities ​ 3.4 ​ — ​ (0.1) ​ 1.0 ​ — ​ 4.3 Other ​ 194.7 ​ 11.9 ​ (1.0) ​ (23.0) ​ (0.4) ​ 182.2 ​ ​ $ 867.8 ​ $ 11.9 ​ $ (7.9) ​ $ (13.9) ​ $ (0.4) ​ $ 857.5 Deferred income tax liabilities ​ ​ ​ ​ ​ ​ Property and equipment ​ $ 929.9 ​ $ 11.8 ​ $ (16.9) ​ $ (85.8) ​ $ — ​ $ 839.0 Intangible assets ​ 592.1 ​ 85.0 ​ (4.5) ​ (136.6) ​ — ​ 536.0 Cash flow hedges ​ (15.8) ​ — ​ — ​ 0.4 ​ 9.8 ​ (5.6) Other ​ (55.8) ​ 3.3 ​ (1.2) ​ 11.0 ​ — ​ (42.7) ​ ​ $ 1,450.4 ​ $ 100.1 ​ $ (22.6) ​ $ (211.0) ​ $ 9.8 ​ $ 1,326.7 ​ Acquisitions via business combinations includes $4.7 million of measurement period adjustments to adjust previously reported purchase price allocations completed during prior years. As at December 31, 2023, GFL had income tax losses of approximately $1,716.0 million ($1,871.6 million as at December 31, 2022) available to carry forward to reduce future years’ taxable income. If not utilized, these losses will begin to expire in 2027 and fully expire in 2043. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Recognized in ​ ​ ​ ​ ​ Balance, ​ ​ ​ ​ Acquisitions ​ ​ ​ ​ ​ ​ ​ other ​ Balance, ​ ​ December ​ Discontinued ​ via business ​ Foreign ​ Recognized ​ comprehensive ​ December ​ 31, 2021 operations combinations exchange in net loss loss 31, 2022 Deferred tax assets ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-capital loss carry forwards ​ $ 446.8 ​ $ (13.8) ​ $ 5.7 ​ $ 11.0 ​ $ 15.0 ​ $ — $ 464.7 Landfill closures and post-closure obligations ​ 178.1 ​ ​ — ​ 0.9 ​ 9.8 ​ 16.2 ​ — ​ 205.0 Accrued liabilities ​ 1.2 ​ ​ — ​ (0.3) ​ 1.2 ​ 1.3 ​ — ​ 3.4 Other ​ 134.2 ​ ​ 19.2 ​ 6.1 ​ (2.0) ​ 37.2 ​ — ​ 194.7 ​ ​ $ 760.3 ​ $ 5.4 ​ $ 12.4 ​ $ 20.0 ​ $ 69.7 ​ $ — $ 867.8 Deferred tax liabilities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Property and equipment ​ $ 774.9 ​ $ (13.5) ​ $ 62.6 ​ $ 60.0 ​ $ 45.9 ​ $ — $ 929.9 Intangible assets ​ 711.7 ​ ​ (1.9) ​ 3.4 ​ (1.7) ​ (119.4) ​ — ​ 592.1 Cash flow hedges ​ 5.8 ​ ​ — ​ — ​ — ​ — ​ (21.6) ​ (15.8) Other ​ (8.2) ​ ​ (3.7) ​ (2.0) ​ (4.6) ​ (37.3) ​ — ​ (55.8) ​ ​ $ 1,484.2 ​ $ (19.1) ​ $ 64.0 ​ $ 53.7 ​ $ (110.8) ​ $ (21.6) $ 1,450.4 ​

LOSS PER SHARE

LOSS PER SHARE	12 Months Ended
	Dec. 31, 2023
LOSS PER SHARE
LOSS PER SHARE	15. LOSS PER SHARE The following table presents GFL’s loss per share for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Net income (loss) attributable to GFL Environmental Inc. ​ $ 45.4 ​ $ (311.8) ​ ​ ​ ​ ​ Less: ​ ​ ​ ​ ​ ​ Net loss from discontinued operations ​ — ​ (127.9) Amounts attributable to preferred shareholders ​ ​ 92.2 ​ ​ 83.0 Adjusted net loss from continuing operations ​ ​ (46.8) ​ ​ (266.9) ​ ​ ​ ​ ​ ​ ​ Weighted and diluted weighted average number of shares outstanding ​ ​ 369,656,237 ​ ​ 367,170,911 ​ ​ ​ ​ ​ ​ ​ Basic and diluted loss per share ​ ​ ​ ​ ​ ​ Continuing operations ​ $ (0.13) ​ $ (0.73) Discontinued operations ​ ​ — ​ ​ (0.35) Total operations ​ $ (0.13) ​ $ (1.08) ​ Basic and diluted loss per share includes the minimum conversion of TEUs into subordinate voting shares, which represented nil subordinate voting shares as at December 31, 2023 (25,665,433 subordinate voting shares as at December 31, 2022). Diluted loss per share excludes anti-dilutive effects of time-based share options, RSUs, Preferred Shares (defined below), and any amount of subordinate voting shares arising from the conversion of TEUs in excess of the minimum conversion.

REVENUE

REVENUE	12 Months Ended
	Dec. 31, 2023
REVENUE
REVENUE	16. REVENUE The following table presents GFL’s revenue disaggregated by service type for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Residential ​ $ 1,538.4 ​ $ 1,488.8 Commercial/industrial ​ 2,881.8 ​ 2,461.3 Total collection ​ 4,420.2 ​ 3,950.1 Landfill ​ 940.1 ​ 837.7 Transfer ​ 753.7 ​ 671.8 Material recovery ​ 322.5 ​ 346.3 Other ​ 404.9 ​ 415.3 Solid Waste ​ 6,841.4 ​ 6,221.2 Environmental Services ​ ​ 1,620.6 ​ ​ 1,343.2 Intercompany revenue ​ (946.5) ​ (803.1) Revenue ​ $ 7,515.5 ​ $ 6,761.3 ​

OPERATING SEGMENTS

OPERATING SEGMENTS	12 Months Ended
	Dec. 31, 2023
OPERATING SEGMENTS
OPERATING SEGMENTS	17. OPERATING SEGMENTS GFL’s main lines of business are the transporting, managing, and recycling of solid and liquid waste and soil remediation services. GFL is divided into operating segments corresponding to the following lines of business: Solid Waste, which includes hauling, landfill, transfer and MRFs and Environmental Services, which includes liquid waste and soil remediation. Inter-segment transfers are made at market prices. The operating segments are presented in accordance with the same criteria used for the internal report prepared for the chief operating decision-maker (“CODM”) who is responsible for allocating the resources and assessing the performance of the operating segments. The CODM assesses the performance of the segments on several factors, including gross revenue, intercompany revenue, revenue and adjusted EBITDA. GFL’s CODM is the Chief Executive Officer. The Solid Waste segment follows a national internal reporting structure, and each country is considered a separate operating segment by the CODM. ​ The following tables present GFL’s revenue and Adjusted EBITDA by operating segment for the periods indicated. Gross revenue is calculated based on revenue before intercompany revenue eliminations. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, 2023 ​ ​ Gross ​ Intercompany ​ ​ ​ Adjusted ​ ​ Revenue ​ Revenue ​ Revenue ​ EBITDA Solid Waste ​ ​ ​ ​ Canada ​ $ 2,085.0 ​ $ (265.8) ​ $ 1,819.2 ​ $ 499.3 USA ​ 4,756.4 ​ (523.0) ​ 4,233.4 ​ 1,365.9 Solid Waste ​ 6,841.4 ​ (788.8) ​ 6,052.6 ​ 1,865.2 Environmental Services ​ 1,620.6 ​ (157.7) ​ 1,462.9 ​ 382.8 Corporate ​ — ​ — ​ — ​ (244.3) ​ ​ $ 8,462.0 ​ $ (946.5) ​ $ 7,515.5 ​ $ 2,003.7 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, 2022 ​ ​ Gross ​ Intercompany ​ ​ ​ ​ Adjusted ​ ​ Revenue ​ Revenue ​ Revenue ​ EBITDA Solid Waste ​ ​ ​ ​ Canada ​ $ 1,926.5 ​ $ (248.3) ​ $ 1,678.2 ​ $ 451.5 USA ​ 4,294.7 ​ (460.5) ​ 3,834.2 ​ 1,149.5 Solid Waste ​ 6,221.2 ​ (708.8) ​ 5,512.4 ​ 1,601.0 Environmental Services ​ 1,343.2 ​ (94.3) ​ 1,248.9 ​ 307.4 Corporate ​ — ​ — ​ — ​ (187.6) ​ ​ $ 7,564.4 ​ $ (803.1) ​ $ 6,761.3 ​ $ 1,720.8 ​ The following table presents GFL’s reconciliation of net income (loss) from continuing operations to Adjusted EBITDA for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Net income (loss) from continuing operations ​ $ 32.2 ​ $ (183.2) Add: ​ ​ Depreciation of property and equipment ​ 1,004.4 ​ 1,003.9 Amortization of intangible assets ​ 485.3 ​ 515.6 Interest and other finance costs ​ 627.2 ​ 489.3 Income tax expense (recovery) ​ ​ 159.9 ​ ​ (176.1) (Gain) loss on foreign exchange ​ (72.9) ​ 217.7 (Gain) loss on sale of property and equipment ​ (13.1) ​ 4.7 Mark-to-market loss (gain) on Purchase Contracts ​ 104.3 ​ (266.8) Share of net loss (income) of investments accounted for using the equity method ​ ​ 61.6 ​ ​ (20.7) Share-based payments ​ 124.8 ​ 53.3 Gain on divestiture ​ (580.5) ​ (4.9) Transaction costs ​ 78.4 ​ 55.0 Acquisition, rebranding and other integration costs ​ 15.3 ​ 25.8 Other ​ ​ (23.2) ​ ​ 7.2 Adjusted EBITDA ​ $ 2,003.7 ​ $ 1,720.8 ​ Geographical information Revenue from external customers and non-current assets can be analyzed according to the following geographic areas: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenue Non-current assets ​ ​ Year ended ​ Year ended ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 December 31, 2023 December 31, 2022 Canada ​ $ 2,946.6 ​ $ 2,676.9 ​ $ 6,577.0 ​ $ 6,236.8 USA ​ 4,568.9 ​ 4,084.4 ​ 11,817.2 ​ 12,147.7 ​ ​ $ 7,515.5 ​ $ 6,761.3 ​ $ 18,394.2 ​ $ 18,384.5 ​ Goodwill and indefinite life intangible assets by operating segment The carrying amount of goodwill and indefinite life intangible assets allocated to the operating segments is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Solid Waste ​ ​ Canada ​ $ 2,091.7 ​ $ 2,079.6 USA ​ 5,601.7 ​ 6,046.2 Environmental Services ​ 1,058.1 ​ 896.3 ​ ​ $ 8,751.5 ​ $ 9,022.1 ​

SHAREHOLDER'S CAPITAL

SHAREHOLDER'S CAPITAL	12 Months Ended
	Dec. 31, 2023
SHAREHOLDER'S CAPITAL
SHAREHOLDER'S CAPITAL	18. SHAREHOLDER’S CAPITAL Authorized capital GFL’s authorized share capital consists of (i) an unlimited number of subordinate voting shares, (ii) an unlimited number of multiple voting shares, (iii) an unlimited number of preferred shares, issuable in series, (iv) 28,571,428 Series A perpetual convertible preferred shares (the “Series A Preferred Shares”) and (v) 8,196,721 Series B perpetual convertible preferred shares (the “Series B Preferred Shares”). The Series A Preferred Shares and Series B Preferred Shares are collectively referred to as the “Preferred Shares”. Subordinate and multiple voting shares The rights of the holders of the subordinate voting shares and the multiple voting shares are substantially identical, except for voting and conversion. The holders of outstanding subordinate voting shares are entitled to one vote per subordinate voting share and the holders of multiple voting shares are entitled to ten votes per multiple voting share. The subordinate voting shares are not convertible into any other classes of shares. Each outstanding multiple voting share may at any time, at the option of the holder, be converted into one subordinate voting share. All multiple voting shares are owned by entities controlled by Patrick Dovigi. In addition, all multiple voting shares will convert automatically into subordinate voting shares at such time that is the earlier of the following: (i) Patrick Dovigi and/or his affiliates no longer beneficially own, directly or indirectly, at least 2.0% of the aggregate of the issued and outstanding subordinate voting shares and multiple voting shares; (ii) Patrick Dovigi is no longer serving as a director or in a senior management position at GFL; or (iii) the twentieth anniversary of the closing of the IPO. The subordinate voting shares and multiple voting shares rank pari passu with respect to the payment of dividends, return of capital and distribution of assets in the event of liquidation, dissolution or winding up of GFL. Preferred shares The preferred shares are issuable at any time and from time to time in series. Each series of preferred shares shall consist of such number of preferred shares and having such rights, privileges, restrictions and conditions as determined by the Board of Directors prior to the issuance thereof. As at December 31, 2023, (a) the Series A Preferred Shares are convertible into 29,852,738 subordinate voting shares, at a conversion price of US$25.18, representing 7.5% of the issued and outstanding subordinate voting shares and 5.8% of the aggregate outstanding voting rights, and (b) the Series B Preferred Shares are convertible into 7,716,995 subordinate voting shares, at a conversion price of US$43.90, representing 1.9% of the issued and outstanding subordinate voting shares and 1.5% of the aggregate outstanding voting rights. The holders of the Preferred Shares are entitled to vote on an as-converted basis on all matters on which holders of subordinate voting shares and multiple voting shares vote, and to the greatest extent possible, will vote with the holders of subordinate voting shares and multiple voting shares as a single class. Each holder of Preferred Shares shall be deemed to hold, for the sole purpose of voting at any meeting of shareholders of GFL at which such holder is entitled to vote, the number of Preferred Shares equal to the number of subordinate voting shares into which such holder’s registered Preferred Shares are convertible as of the record date for the determination of shareholders entitled to vote at such shareholders meeting. The liquidation preference of the Series A Preferred Shares and Series B Preferred Shares accrete at a rate of 7.000% and 6.000% per annum, respectively, compounded quarterly. From and after December 31, 2024 (in the case of the Series A Preferred Shares) or December 31, 2025 (in the case of the Series B Preferred Shares), GFL will have the option each quarter to redeem a number of Preferred Shares in an amount equal to the increase in the liquidation preference for the quarter. This optional redemption amount can be satisfied in either cash or subordinate voting shares at the election of GFL. If GFL elects to pay the optional redemption amount for a particular quarter in cash, the accretion rate for that quarter for the Series A Preferred Shares and Series B Preferred Shares will be 6.000% and 5.000% per annum, respectively. The Preferred Shares are subject to transfer restrictions, but can be converted into subordinate voting shares by the holder at any time. GFL may also require the conversion or redemption of the Preferred Shares at an earlier date in certain circumstances. Normal course issuer bid On May 10, 2023, the Toronto Stock Exchange accepted GFL’s notice of intention to renew its normal course issuer bid (“NCIB”) during the twelve-month period commencing on May 12, 2023 and ending May 11, 2024. Under the NCIB, a maximum of 17,867,120 subordinate voting shares may be repurchased by GFL. GFL’s previous NCIB, which expired on May 11, 2023, authorized the purchase of up to 16,510,694 subordinate voting shares. All subordinate voting shares repurchased by GFL under the NCIB will be cancelled. During the years ended December 31, 2023 and December 31, 2022, GFL did not repurchase any subordinate voting shares under the NCIB. Share issuances and cancellations The following table presents GFL’s share capital for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Subordinate ​ Multiple voting ​ Preferred ​ ​ ​ voting shares shares shares Total Balance, December 31, 2022 331,629,917 11,812,964 36,768,149 380,211,030 Converted from RSUs 2,053,782 — — 2,053,782 Converted from TEUs 25,666,465 — — 25,666,465 Cancelled during the year (260) — — (260) Balance, December 31, 2023 359,349,904 11,812,964 36,768,149 407,931,017 ​ Share options, RSUs, DSUs and PSUs The Board of Directors adopted the LTIP which allows GFL to grant long-term equity-based incentives, including options, PSUs and RSUs, to eligible participants. Each award represents the right to receive subordinate voting shares, or in the case of PSUs and RSUs, subordinate voting shares and/or cash, in accordance with the terms of the LTIP. The director deferred share unit plan (the “DSU Plan”) was adopted by the Board of Directors, to provide non-employee directors the opportunity to receive a portion of their compensation in the form of DSUs. Each DSU represents a unit equivalent in value to a subordinate voting share based on the closing price of the subordinate voting shares on the day prior to the grant. The maximum number of subordinate voting shares reserved for issuance under the LTIP, the DSU Plan, and any other security-based compensation arrangement in any one-year period is 10% of the total issued and outstanding subordinate voting shares and multiple voting shares in the capital which as at December 31, 2023, would equate to 37,116,287 subordinate voting shares in the capital of GFL. Share options Changes in the number of share options held by officers and employees with their average exercise price per option are summarized below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average ​ Options exercise price (US$) Share options outstanding, December 31, 2022 22,128,582 ​ $ 32.59 Granted 150,000 ​ 33.00 Share options outstanding, December 31, 2023 22,278,582 ​ $ 32.59 Vested share options, December 31, 2023 8,229,297 ​ $ 28.93 ​ For the year ended December 31, 2023, there were no options exercised, cancelled, expired or forfeited. On August 16, 2023, 150,000 options were granted. The options vest on August 16, 2026 and will expire on August 16, 2033. The total grant date fair value of the issued options is US$1.5 million, calculated using a Black-Scholes option valuation model to determine the total fair value of the issued options on the grant date. For the year ended December 31, 2023, the total compensation expense related to share options amounted to $18.8 million ($21.1 million for the year ended December 31, 2022). RSUs, DSUs and PSUs The following table presents GFL’s summary of the RSUs and DSUs for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grant date fair value ​ Grant date fair value ​ ​ RSUs ​ (US$) ​ DSUs ​ (US$) Outstanding, December 31, 2022 1,906,769 ​ $ 28.10 60,960 ​ $ 28.50 Granted 2,581,840 ​ 31.30 29,573 ​ 33.14 Settled (2,050,551) ​ 29.03 — ​ — Forfeited (109,416) ​ 30.03 — ​ — Cancelled ​ (16,881) ​ ​ 30.25 ​ — ​ ​ — Outstanding, December 31, 2023 2,311,761 ​ $ 30.74 90,533 ​ $ 30.02 Expected to vest, December 31, 2023 2,125,322 ​ $ 30.63 90,533 ​ $ 30.02 ​ For the year ended December 31, 2023, the total compensation expense related to RSUs amounted to $104.7 million ($31.1 million for the year ended December 31, 2022). This includes retention grants to key management personnel which vested during the quarter. For the year ended December 31, 2023, the total compensation expense related to DSUs amounted to $1.3 million ($1.1 million for the year ended December 31, 2022). As at December 31, 2023, there have been no PSUs issued.

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	12 Months Ended
	Dec. 31, 2023
SUPPLEMENTAL CASH FLOW INFORMATION
SUPPLEMENTAL CASH FLOW INFORMATION	19. SUPPLEMENTAL CASH FLOW INFORMATION The following table presents net change in non-cash working capital of GFL for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Effects of changes in ​ ​ ​ ​ ​ ​ Accounts payable and accrued liabilities ​ $ (3.4) ​ $ 160.4 Trade and other receivables, net ​ 57.7 ​ ​ (221.0) Prepaid expenses and other assets ​ (23.3) ​ ​ (24.9) Changes in non-cash working capital items ​ $ 31.0 ​ $ (85.5) ​

FINANCIAL INSTRUMENTS AND RISK

FINANCIAL INSTRUMENTS AND RISK MANAGEMENT	12 Months Ended
	Dec. 31, 2023
FINANCIAL INSTRUMENTS AND RISK MANAGEMENT
FINANCIAL INSTRUMENTS AND RISK MANAGEMENT	20. FINANCIAL INSTRUMENTS AND RISK MANAGEMENT GFL’s financial instruments consist of cash, trade accounts receivable, trade accounts payable, long-term debt, including related hedging instruments, and, prior to the automatic conversion on March 15, 2023, the TEUs. Fair value measurement The carrying value of GFL’s financial assets approximate their fair values. The carrying value of GFL’s financial liabilities approximate their fair values with the exception of GFL’s outstanding U.S. dollar secured and unsecured notes (the “Notes”) and prior to maturity on March 15, 2023, the Amortizing Notes. The fair value hierarchy for these instruments are as follows for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Carrying Value Fair Value Level 1 Level 2 Level 3 Notes ​ $ 7,337.4 ​ $ 7,087.5 ​ $ — ​ $ 7,087.5 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ Carrying Value Fair Value Level 1 Level 2 Level 3 Notes ​ $ 6,157.0 ​ $ 5,568.6 ​ $ — ​ $ 5,568.6 ​ $ — Amortizing Notes ​ ​ 15.5 ​ ​ 15.5 ​ ​ 15.5 ​ ​ — ​ ​ — ​ GFL uses a discounted cash flow model incorporating observable market data, such as foreign currency forward rates, to estimate the fair value of its Notes. Certain leases, other loans and amounts due to related parties do not bear interest or bear interest at an amount that is not stated at fair value. Net derivative instruments are recorded at fair value and classified within Level 2. Prior to the automatic conversion on March 15, 2023, Purchase Contracts were recorded at fair value and classified within Level 1. Financial risk management objectives As a result of holding and issuing financial instruments, GFL is exposed to liquidity, credit and market risks. The following provides a description of these risks and how GFL manages these exposures. Credit risk Credit risk is the risk of loss associated with a counterparty’s inability to fulfill its payment obligations. GFL’s principal financial assets that expose it to credit risk are accounts receivable. GFL uses historical trends of default, the timing of recoveries and the amount of loss incurred, adjusted for management’s judgement as to whether current economic and credit conditions are such that the actual losses are likely to be greater or less than suggested by historical trends. GFL considers the following as constituting an event of default for internal credit risk management purposes as historical experience indicates that accounts receivable that meet either of the following criteria are generally not recoverable: ● the customer is insolvent; or ● GFL’s relationship with the customer has been severed; and/or ● the customer’s receivable has aged beyond a reasonable period. GFL provides credit to its customers in the normal course of its operations. The amounts disclosed in the statement of financial position represent the maximum credit risk and are net of allowance for doubtful accounts, based on management’s estimates taking into account GFL’s prior experience and its assessment of the current economic environment. The following is a breakdown of the trade receivables aging. It does not include holdbacks or unbilled revenue as they are made up of amounts to be received at the end of specific long term contracts. ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 0-60 days ​ $ 787.8 ​ $ 781.4 61-90 days ​ 103.7 ​ 107.8 91+ days ​ 127.6 ​ 165.2 ​ ​ $ 1,019.1 ​ $ 1,054.4 ​ In determining the recoverability of trade and other receivables, GFL considers any change in the credit quality of the trade receivable from the date credit was initially granted up to the end of the reporting period. Liquidity risk GFL monitors and manages its liquidity to ensure that it has access to sufficient funds to meet its liabilities when due. Management of GFL believes that future cash flows from operations and the availability of credit under existing bank arrangements is adequate to support GFL’s financial liquidity needs for its ongoing operations. GFL has financial liabilities with varying contractual maturity dates. With the exception of long-term debt and lease obligations, all of GFL’s significant financial liabilities mature in less than one year. Interest rate risk Interest rate risk is the risk that the fair value or future cash flows of a financial liability will fluctuate because of changes in market interest rates. GFL enters into both fixed and floating rate debt and also leases certain assets with fixed rates. GFL’s risk management objective is to minimize the potential for changes in interest rates to cause adverse changes in cash flows to GFL. The ratio of fixed to floating rate obligations outstanding is designed to maintain flexibility in GFL’s capital structure to adjust to prevailing market conditions. GFL also manages interest rate risk through hedging instruments, as discussed further below as part of foreign currency risk. At December 31, 2023, GFL had a ratio of fixed to floating rate obligations of approximately 86.5% fixed and 13.5% floating (67.1% fixed and 32.9% floating as at December 31, 2022). A 1% change in the interest rate on floating rate obligations would have resulted in a change in the interest expense for the year ended December 31, 2023 of approximately $5.7 million based on the balances outstanding as at December 31, 2023 (approximately $29.9 million for the year ended December 31, 2022). Foreign currency risk GFL is exposed to foreign currency risk relating to its operating and financing activities and partially mitigates such risk using certain cross-currency interest rate swaps. A $0.01 change in the U.S. dollar to Canadian dollar exchange rate would impact our annual revenue and income for year ended December 31, 2023, by approximately $33.9 million and $10.2 million, respectively ($31.3 million and $8.8 million respectively, for the year ended December 31, 2022). GFL’s swapped instruments included the following: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Notional ​ ​ ​ ​ ​ Fixed Foreign ​ ​ ​ ​ ​ ​ Amount ​ Fixed/Variable ​ Fixed/Variable Interest ​ Exchange ​ ​ ​ ​ Underlying Items ($US) Interest Rate Paid Rate Received Rate Paid Effective Date Expiration 4.250% 2025 Secured Notes 500.0 4.805 % 4.250 % 1.4198 ​ April 29, 2020 ​ June 1, 2025 5.125% 2026 Secured Notes 500.0 5.725 % 5.125 % 1.3245 ​ December 16, 2019 ​ December 15, 2026 8.500% 2027 Notes 48.0 8.399 % 8.500 % 1.3355 ​ April 23, 2019 ​ May 1, 2027 8.500% 2027 Notes 300.0 8.419 % 8.500 % 1.3355 ​ April 23, 2019 ​ May 1, 2027 8.500% 2027 Notes 348.0 8.500 % 8.828 % 1.2026 ​ June 8, 2021 ​ May 1, 2027 4.000% 2028 Notes ​ 500.0 ​ 4.524 % 4.000 % 1.3112 ​ November 23, 2020 ​ August 1, 2028 4.750% 2029 Notes 350.0 5.317 % 4.750 % 1.2026 ​ June 8, 2021 ​ June 8, 2029 ​ The effective cross-currency swaps eliminate the impact of changes in the value of the U.S. dollar between the date of issuance of the Notes and their respective maturity dates. The cross-currency interest rate swap associated with the 8.500% 2027 Notes continued to be in place after the redemption of the notes. As a result of the redemption, GFL discontinued the use of hedge accounting. GFL entered into an offset swap to receive and pay interest semi-annually at 8.828% on US$348.0 million in order to hedge this exposure. These cross-currency swaps have been designated at inception and accounted for as cash flow hedges. A gain, net of tax, in the fair value of derivatives designated as cash flow hedges in the amount of $28.5 million has been recorded in other comprehensive loss for the year ended December 31, 2023 ($64.9 million gain, net of tax for the year ended December 31, 2022). Commodity risk GFL entered into a series of swap contracts to partially hedge our exposure of diesel fuel purchases in Canada and certain areas in the U.S. As at December 31, 2022, all of the swap contracts had expired. The reclassification to net loss the fair value movements on the fuel contracts at maturity within the consolidated statements of operations was $nil for the year ended December 31, 2023 ($0.5 million for the year ended December 31, 2022). GFL markets a variety of recyclable materials, including cardboard, mixed paper, plastic containers, glass bottles and ferrous and aluminum metals. GFL owns and operates recycling operations and sells other collected recyclable materials to third parties for processing before resale. To reduce GFL’s exposure to commodity price risk with respect to recycled materials, it has adopted a pricing strategy of charging collection and processing fees for recycling volume collected from third parties. In the event of a change in recycled commodity prices, a 10% change in average recycled commodity prices from the average prices that were in effect would have had a $10.7 million and $14.9 million impact on revenues for the year ended December 31, 2023 and December 31, 2022, respectively. Capital management GFL defines capital that it manages as the aggregate of its shareholders’ equity and long-term debt net of cash. GFL makes adjustments to its capital based on the funds available to GFL in order to support the ongoing operations of the business and in order to ensure that the entities in GFL will be able to continue as going concerns, while maximizing the return to stakeholders through the optimization of the debt and equity balances. GFL manages its capital structure, and makes adjustments to it in light of changes in economic conditions. In order to maintain or modify the capital structure, GFL may arrange new debt with existing or new lenders, or obtain additional financing through other means. Management reviews its capital management approach on an ongoing basis and believes that this approach, given the size of GFL, is reasonable. There were no changes in GFL’s approach to capital management during the year ended December 31, 2023, and year ended December 31, 2022.

COMMITMENTS

COMMITMENTS	12 Months Ended
	Dec. 31, 2023
COMMITMENTS
COMMITMENTS	21. COMMITMENTS Letters of credit As at December 31, 2023, GFL had letters of credit totaling approximately $236.1 million outstanding ($233.0 million as at December 31, 2022), which are not recognized in the Annual Financial Statements. Interest expense in connection with these letters of credit was $5.1 million for the year ended December 31, 2023 ($5.0 million for the year ended December 31, 2022). Performance bonds As at December 31, 2023, GFL had issued performance bonds totaling $1,681.7 million ($1,560.7 million as at December 31, 2022).

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS	12 Months Ended
	Dec. 31, 2023
RELATED PARTY TRANSACTIONS
RELATED PARTY TRANSACTIONS	22. RELATED PARTY TRANSACTIONS Included in due to related party is a non-interest bearing unsecured promissory note payable to Josaud Holdings Inc., an entity controlled by Patrick Dovigi. After the final payment of the semi-annual installment of $3.5 million, the remaining principal outstanding on the note payable was $nil as at December 31, 2023 ($3.5 million as at December 31, 2022). The note matured and was repaid on January 1, 2023. Also included in due to related party is an interest bearing unsecured promissory note issued on March 5, 2020 payable to Sejosa Holdings Inc., an entity controlled by Patrick Dovigi. The note matures on March 5, 2025, is payable in equal semi-annual instalments and bears interest at market rate. After the payment of the semi-annual instalment of $2.9 million, the remaining principal outstanding on the note payable was $8.7 million as at December 31, 2023 ($14.5 million as at December 31, 2022). These transactions are measured at the exchange amount, which is the amount of consideration established and agreed to by the related parties. From time to time, GFL has entered into leases with entities controlled by affiliates of Patrick Dovigi, as well as entities controlled by another director of GFL (the “Related Parties”). At this time, GFL leases six properties from the Related Parties. These leases are on arm’s length and commercially reasonable terms, and have been supported by rental rate comparisons prepared by third parties. None of the leased premises are material to the operations of GFL. For the year ended December 31, 2023, GFL paid $9.0 million ($5.8 million for the year ended December 31, 2022) in aggregate lease payments to the Related Parties. For the year ended December 31, 2023, GFL entered into transactions with Green Infrastructure Partners Inc. (“GIP”) which resulted in revenue of $25.8 million ($31.6 million for the year ended December 31, 2022) and net receivables of $10.9 million as at December 31, 2023 (net payables of $3.8 million as at December 31, 2022). ​ Compensation of key management personnel The remuneration of key management personnel consisted of salaries, short-term benefits and share - based payments. During the year ended December 31, 2023 total salaries, short-term benefits and share-based payments to key management personnel was $100.0 million ($36.8 million for the year ended December 31, 2022).

EXPENSES BY NATURE

EXPENSES BY NATURE	12 Months Ended
	Dec. 31, 2023
EXPENSES BY NATURE
EXPENSES BY NATURE	23. EXPENSES BY NATURE The following table presents GFL’s expenses by nature for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Employee benefits ​ $ 2,302.2 ​ $ 2,011.3 Transfer and disposal costs ​ 1,465.1 ​ 1,415.2 Interest and other finance costs ​ 627.2 ​ 489.3 Depreciation of property and equipment ​ 1,004.4 ​ 1,003.9 Amortization of intangible assets ​ 485.3 ​ 515.6 Other expenses ​ 843.9 ​ 725.9 Transaction costs ​ 78.4 ​ 55.0 Acquisition, rebranding and other integration costs ​ 15.3 ​ 25.8 Maintenance and repairs ​ 525.9 ​ 480.9 Fuel costs ​ 374.7 ​ 405.4 (Gain) loss on foreign exchange ​ (72.9) ​ 217.7 Share-based payments ​ 124.8 ​ 55.1 (Gain) loss on sale of property and equipment ​ (13.1) ​ 4.7 Gain on divestiture ​ (580.5) ​ (4.9) Mark-to-market loss (gain) on Purchase Contracts ​ 104.3 ​ (266.8) Other ​ (23.2) ​ 7.2 Total expenses by nature ​ $ 7,261.8 ​ $ 7,141.3 ​

DIVESTITURES

DIVESTITURES	12 Months Ended
	Dec. 31, 2023
DIVESTITURES
DIVESTITURES	24. DIVESTITURES During the year ended December 31, 2023, GFL divested three non-core U.S. Solid Waste businesses for aggregate proceeds of $1,649.2 million, resulting in a gain on divestiture of $575.0 million. The three non-core U.S. Solid Waste businesses, which were included within GFL’s Solid Waste USA segment, did not meet the criteria to be classified as discontinued operations as they did not represent a major line of business or geographical area of operations.

DISCONTINUED OPERATIONS

DISCONTINUED OPERATIONS	12 Months Ended
	Dec. 31, 2023
DISCONTINUED OPERATIONS
DISCONTINUED OPERATIONS	25. DISCONTINUED OPERATIONS On April 25, 2022, GFL announced the completion of the divestiture of GFL’s Infrastructure services division (“GFL Infrastructure”) for cash consideration of $224.0 million and an approximate 45% non-controlling equity interest in GIP, an entity that is controlled by funds managed by HPS Investment Partners Inc. through a majority equity interest. An affiliate controlled by Patrick Dovigi holds a minority equity interest in GIP. The results of GFL Infrastructure are presented as a single amount on the statement of operations and comprehensive (loss) income. The post-tax results of the discontinued operations for the periods indicated are as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Revenue ​ $ — ​ $ 96.8 Expenses ​ — ​ 98.4 Loss before income taxes ​ — ​ (1.6) Income tax expense ​ — ​ 5.0 Net loss ​ — ​ (6.6) Impairment ​ — ​ (121.3) Net loss and comprehensive loss from discontinued operations ​ $ — ​ $ (127.9) ​ Cash flow information for GFL Infrastructure is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Operating cash flows from discontinued operations ​ $ — ​ $ (35.4) Investing cash flows from discontinued operations ​ — ​ (7.2) Financing cash flows from discontinued operations ​ — ​ (1.0) Decrease in cash from discontinued operations ​ $ — ​ $ (43.6) ​

SUMMARY OF MATERIAL ACCOUNTIN_2

SUMMARY OF MATERIAL ACCOUNTING POLICIES (Policies)	12 Months Ended
	Dec. 31, 2023
SUMMARY OF MATERIAL ACCOUNTING POLICIES
Accounting policy for Basis of presentation	Basis of presentation These Annual Financial Statements have been prepared in accordance with International Financial Reporting Standards (“IFRS”), as issued by the International Accounting Standards Board (“IASB”).
Accounting policy for Basis of measurement	Basis of measurement These Annual Financial Statements were prepared on the historical cost basis except for certain financial instruments that are measured at fair value at the end of the reporting period (see Note 20).
Accounting policy for Presentation and functional currency	Presentation and functional currency These Annual Financial Statements are presented in Canadian dollars which is GFL’s functional currency.
Accounting policy for Basis of consolidation	Basis of consolidation Subsidiaries are entities controlled by GFL. Control exists when GFL has power over an entity, exposure or rights to variable returns from GFL’s involvement with the entity, and the ability to use its power over the entity to affect the amount of GFL’s returns. The financial accounts and results of subsidiaries are included in these Annual Financial Statements of GFL from the date that control commences until the date that control ceases. When necessary, adjustments are made to the financial statements of subsidiaries to bring their accounting policies into line with GFL’s accounting policies. All intercompany assets and liabilities, equity, income, expenses and cash flows relating to transactions between GFL and its subsidiaries are eliminated in full on consolidation.
Accounting policy for Business combinations	Business combinations Acquisitions of subsidiaries and businesses are accounted for using the acquisition method with the results of operations consolidated with those of GFL from the date of acquisition. The consideration for each acquisition is measured as the aggregate of the fair values of assets given, liabilities incurred or assumed and the equity instruments issued by GFL in exchange for control of the acquired company or business. Acquisition-related costs are recognized in the consolidated statement of operations as incurred. GFL’s growth strategy is to focus on generating organic growth from all of its operating segments. In addition to organic growth, GFL deploys an active acquisition strategy involving the integration of acquired businesses into each of its operating segments through integration of property and equipment, back office functions, improving route density and realignment of disposal alternatives to effect synergies and maximize profits. Goodwill arising from acquisitions is largely attributable to the assembled workforce of the acquisitions, the potential synergies with the acquiree, and intangible assets that do not qualify for separate recognition. The determination of the fair values of acquired intangible assets and acquired landfill assets requires GFL to make significant estimates and assumptions. The significant assumptions used to value acquired intangible assets and acquired landfill assets include, among others, future expected cash flows and discount rate.
Accounting policy for Equity accounting for joint arrangements and associates	Equity accounting for joint arrangements and associates Associates are all entities over which GFL has significant influence but not control or joint control. Investments in associates are accounted for using the equity method of accounting after initially being recognized at cost. Joint arrangements are classified as either joint operations or joint ventures. The classification depends on contractual rights and obligations of each investor, rather than the legal structure of the joint arrangement. Interests in joint ventures are accounted for by GFL using the equity method, after initially being recognized at cost. An investment is considered to be impaired if there are objective evidences of impairments, as a result of one or more events that occurred after the initial recognition, and those events have negative impacts on the future cash flows of the investment that can be reliably estimated. The investment is reviewed at each balance sheet date to determine whether there is any indication of impairment.
Accounting policy for Property and equipment	Property and equipment Property and equipment are stated at cost, less accumulated depreciation and impairment. Assets are depreciated to residual values over their estimated useful lives, with depreciation commencing when an asset is ready for use. Significant parts of property and equipment that have different depreciable lives are depreciated separately. Judgment is used in determining the appropriate level of componentization. Depreciation is computed on a straight-line basis, unless otherwise stated, using the following useful lives: ​ ​ ​ Type of property and equipment Depreciation term Buildings and improvements ​ 10 to 30 years or term of lease Landfills ​ Units of production Vehicles 10 to 20 years Machinery and equipment 3 to 20 years Containers 5 to 10 years Right-of-use assets Shorter of lease term or life of underlying asset(s) ​ The costs of repair and maintenance activities are recognized in the consolidated statement of operations as incurred. Distinguishing major inspections and overhaul from repairs and maintenance in determining which costs are capitalized is a matter of management judgement. An item of property and equipment is de-recognized upon disposal or when no future economic benefits are expected to arise from the continued use of the asset. Any gain or loss arising on de-recognition of the asset (calculated as the difference between net disposal proceeds and the carrying amount of the asset) is included as a gain or loss in the consolidated statement of operations in the period the asset is de-recognized. Property and equipment are reviewed at the end of each reporting period to determine whether there is any indication of impairment. If the possibility of impairment is indicated, GFL will estimate the recoverable amount of the asset and record any impairment loss in the consolidated statement of operations. Assets under development are not depreciated until they are available for use.
Accounting policy for Landfill assets	Landfill assets Landfill assets represent the cost of landfill airspace, including original acquisition cost and landfill construction and development costs, incurred during the operating life of the site. Landfill assets also include capitalized landfill closure and post-closure costs, net of accumulated amortization, and the cost of either new or landfill expansion permits. The original cost of landfill assets, together with incurred and projected landfill construction and development costs, is amortized on a per unit basis as landfill airspace is consumed. Landfill assets are amortized over their total available disposal capacity representing the sum of estimated permitted airspace capacity (having received the final permit from the governing authorities) plus future permitted airspace capacity, representing an estimate of airspace capacity that management believes is probable of being permitted based on the following criteria: ● Personnel are actively working to obtain the permit or permit modifications necessary for expansion of an existing landfill, and progress is being made on the project; ● It is probable that the required approvals will be received within the normal application and processing periods for approvals in the jurisdiction in which the landfill is located; ● GFL has a legal right to use or obtain land associated with the expansion plan; ● There are no significant known political, technical, legal or business restrictions or issues that could impair the success of the expansion effort; ● Management is committed to pursuing the expansion; and ● Additional airspace capacity and related costs have been estimated based on the conceptual design of the proposed expansion. GFL has been successful in receiving approvals for expansions pursued; however, there can be no assurance that GFL will be successful in obtaining approvals for landfill expansions in the future.
Accounting policy for Intangible assets	Intangible assets Intangible assets are stated at cost, less accumulated amortization and impairment, and consist of customer lists, municipal and other commercial contracts, trade name, licenses and permits, non-compete agreements and Certificates of Approvals or Environmental Compliance Approvals (“C of A”). C of As provide GFL with certain waste management rights in the province or state of issuance. C of As that do not expire are considered to have an indefinite life and therefore are not subject to amortization. C of As that relate to a leased facility are amortized over the lease term. Amortization is based on the estimated useful life using the following methods and rates: ​ ​ ​ ​ ​ Type of intangible asset ​ Amortization term Indefinite life C of A ​ ​ ​ Indefinite Customer lists and municipal contracts ​ Straight-line ​ 5 to 10 years Trade name, definite life C of A and other assets Straight-line 1 to 15 years Non-compete agreements Straight-line 5 years ​ Intangible assets with indefinite useful lives are tested at least annually, at the cash-generating unit (“CGU”) level for impairment. The assessment of indefinite life is reviewed annually to determine whether the indefinite life assessment continues to be supportable. If not, the change in the useful life assessment from indefinite to finite is made on a prospective basis. Intangible assets with finite lives are amortized over the useful economic life on a straight-line basis and assessed for impairment whenever there is an indication that the intangible asset may be impaired. Amortization expense is included as part of cost of sales.
Accounting policy for Goodwill	Goodwill Goodwill arising on an acquisition of a business represents the excess of the purchase price over the fair value of the net identifiable assets of the acquired business. Goodwill is carried at cost as established at the date of acquisition of the business less accumulated impairment losses, if any. For the purpose of impairment testing, goodwill acquired in a business combination is, from the acquisition date, allocated to CGUs based on the lowest level within the entity in which the goodwill is monitored for internal management purposes. The allocation is made to those CGUs that are expected to benefit from the business combination in which the goodwill arose. GFL tests its goodwill for impairment at the operating segment level. Any potential impairment of goodwill is identified by comparing the recoverable amount of a CGU to its carrying value. Goodwill is reduced by the amount of deficiency, if any. If the deficiency exceeds the carrying amount of goodwill, the carrying values of the remaining assets in the CGUs are reduced by the excess on a pro-rata basis. GFL tests goodwill for impairment annually or more frequently if there are indications of impairment. The recoverable amount of a CGU is the higher of the estimated fair value less costs of disposal or value-in-use of the CGU. In assessing value-in-use, the estimated future cash flows are discounted using a pre-tax discount rate that reflects current market assessments of the time value of money and the risks specific to the CGU.
Accounting policy for Landfill closure and post-closure obligations	Landfill closure and post-closure obligations GFL recognizes the estimated liability for an asset retirement obligation (“ARO”) that results from acquisition, construction, development or normal operations in the year in which it is incurred. Costs associated with capping, closing and monitoring a landfill or portions of a landfill, after it ceases to accept waste, are initially measured at the discounted future value of the estimated cash flows over the landfill’s operating life. The operating life represents the period over which the landfill receives waste. This value is capitalized as part of the cost of the related asset and amortized over the asset’s useful life. The determination of the obligations requires GFL to make significant estimates and assumptions. The significant assumptions include the estimates of future expenditures of landfill capping, closure and post-closure activities, which are prepared by internal and third-party engineering specialists and reviewed at least once annually and consider, amongst other things, regulations that govern each site. The estimated liabilities are valued using present value techniques that consider and incorporate assumptions and considerations marketplace participants would use in the determination of those estimates, including inflation, markups, inherent uncertainties due to the timing of work performed, information obtained from third parties, quoted and actual prices paid for similar work and engineering estimates. Inflation assumptions are based on management’s evaluation of current and future economic conditions and the expected timing of these expenditures. Estimates are discounted applying the risk-free rate, which is a rate that is essentially free of default risk. In determining the risk-free rate, consideration is given to both current and future economic conditions and the expected timing of expenditures.
Accounting policy for Revenue recognition	Revenue recognition GFL records revenue when control is transferred to the customer which is the time that the service is provided. Revenue is measured based on the consideration specified in a contract with a customer or consideration agreed by a customer. Revenue excludes amounts collected on behalf of third parties. GFL recognizes revenue from the following major sources: Collection and disposal of solid waste GFL generates revenue through fees charged for the collection of solid waste including recyclables, from its municipal, residential and commercial and industrial customers. Revenues from these contracts are influenced by a variety of factors including collection frequency, type of service, type and volume or weight of waste and type of equipment and containers furnished to the customer. Our municipal customer relationships are generally supported by contracts ranging from three three Certain future variable considerations of long-term customer contracts may be unknown upon entering into the contract, including the amount that will be billed in accordance with annual CPI, market costs for fuel and commodity prices. The amount to be billed is often tied to changes in an underlying base index such as a CPI or a fuel or commodity index, and revenue is recognized once the index is established for the future period. GFL does not disclose the value of unsatisfied performance obligations for these contracts as its right to consideration corresponds directly to the value provided to the customer for services completed to date and all future variable consideration is allocated to wholly unsatisfied performance obligations. In addition to handling GFL’s own collected waste volumes, its transfer stations, material recovery facilities (“MRFs”), landfills and organic waste processing facilities generate revenue from tipping fees paid to GFL by municipalities and third-party haulers and waste generators, processing fees, and the sale of recycled commodities. GFL also operates MRFs, transfer stations and landfills for municipal owners under a variety of compensation arrangements, including fixed fee arrangements or on a tonnage or other basis. Revenue is recognized at the time service is provided. Collection and disposal of liquid waste GFL generates revenue through fees charged for the collection, management, transportation, processing and disposal of a wide variety of industrial and commercial liquid wastes. Revenue is primarily derived from fees charged to customers on a per service, volume and/or hour basis. Revenues from these contracts are influenced by a variety of factors including timing of contract, type of service, type and volume of liquid waste and type of equipment used. Revenue in the liquid waste business is also derived from the stewardship return incentives paid by most Canadian provinces in which GFL has liquid waste operations, as well as from the sale of used motor oil, solvents and downstream products to third parties. The fees received from third parties are based on the market, type and volume of material sold. Revenue is recognized at the time when service is provided. Revenue recognized under these agreements is variable in nature based on volumes and commodity prices at the time of sale, which are unknown at contract inception.
Accounting policy for Share based payments	Share-based payments Share options issued by GFL as remuneration of its key employees, officers, and directors are settled in subordinate voting shares and are accounted for as equity-settled awards. The fair value of options granted is measured using either the Black-Scholes option pricing model or the Monte Carlo simulation methods, which rely on estimates of the expected risk-free interest rate, expected dividend payments, expected share price volatility, the value of GFL’s shares and the expected average life of the options. GFL believes these models adequately capture the substantive features of the option awards and are appropriate to calculate their fair values. The fair value of the options determined at the grant date is expensed over the vesting period using an accelerated method of amortization, with a corresponding increase to contributed surplus. Expense related to share-based payments is included as part of selling, general and administrative expense. Upon exercise of options, the amount recognized in contributed surplus for the awards and the cash received upon exercise are recognized as an increase in share capital. GFL has a long-term incentive plan (“LTIP”) to grant long-term equity-based incentives, including options, performance stock units (“PSUs”), restricted stock units (“RSUs”), and deferred share units (“DSUs”) to eligible participants. Each award represents the right to receive subordinate voting shares, or in the case of PSUs and RSUs, subordinate voting shares and/or cash, in accordance with the terms of the LTIP. The fair value of the RSUs and DSUs granted are based on the closing price of the subordinate voting shares on the day prior to the grant. The fair value of the RSUs and DSUs are recognized as compensation expense over the vesting period.
Accounting policy for Income taxes	Income taxes Income tax expense or recovery is comprised of current and deferred income taxes. It is recognized in the consolidated statement of operations, except to the extent that the expense relates to items recognized directly in equity. A current or non-current tax liability/asset is the estimated tax payable/receivable on taxable income for the period, and any adjustments to taxes payable with respect to previous periods. The liability method is used to account for deferred tax assets and liabilities, which arise from temporary differences between the carrying amount of assets and liabilities recognized in the consolidated statement of financial position and their corresponding tax basis. The carry forward of unused tax losses and credits are recognized to the extent that it is probable they can be used in the future. The carrying amount of deferred income tax assets is reviewed at each reporting date and reduced to the extent it is no longer probable that the deferred income tax asset will be recovered. Deferred income tax assets and liabilities are calculated at the tax rates that are expected to apply when the asset or liability is recovered or settled. Current and deferred tax assets and liabilities are calculated using tax rates that have been enacted or substantively enacted at the end of the reporting date. Where current tax or deferred tax arises from the initial accounting for a business combination, the tax effect is included in the accounting for the business combination. Deferred tax income liabilities are offset if a legally enforceable right exists to set off current income tax assets against current income tax liabilities and the deferred tax relates to the same taxable entity and the same taxation authority.
Accounting policy for Financial instruments	Financial instruments Classification and measurement All financial assets and liabilities are recognized initially at fair value plus or minus transaction costs, except for financial instruments at fair value through profit or loss (“FVTPL”), for which transaction costs are expensed. Debt financial instruments are subsequently measured at FVTPL, fair value through other comprehensive income (“FVTOCI”), or amortized cost using the effective interest rate method. GFL determines the classification of its financial assets based on GFL’s business model for managing the financial assets and whether the instruments’ contractual cash flows represent solely payments of principal and interest on the principal amount outstanding. GFL’s derivatives designated as a hedging instrument in a qualifying hedge relationship are subsequently measured at FVTOCI. Equity instruments that meet the definition of a financial asset, if any, are subsequently measured at FVTPL or elected irrevocably to be classified at FVTOCI at initial recognition. Derivatives not designated in a qualified hedge relationship are measured at FVTPL. Financial liabilities are subsequently measured at amortized cost using the effective interest method or at FVTPL in certain circumstances or when the financial liability is designated as such. For financial liabilities that are designated as FVTPL, the amount of change in the fair value of the financial liability that is attributable to changes in GFL’s own credit risk of that liability is recognized in other comprehensive income or loss unless the recognition of the effects of changes in the liability’s credit risk in other comprehensive income or loss would create or enlarge an accounting mismatch in the consolidated statement of operations. The remaining amount of change in the fair value of the liability is recognized in the consolidated statement of operations. Changes in the fair value of a financial liability attributable to GFL’s own credit risk, if any, are recognized in other comprehensive income or loss and are not subsequently reclassified to the consolidated statement of operations; instead, they are transferred to retained earnings, upon de-recognition of the financial liability. All of GFL’s financial assets are categorized within the amortized cost measurement category. All of GFL’s financial liabilities, with the exception of deferred foreign exchange derivatives and the Purchase Contracts (as defined below), are also categorized within the amortized cost measurement category. Deferred foreign exchange derivatives, which qualify for hedge accounting, are categorized within the FVTOCI category and the Purchase Contracts, which is a financial liability with embedded derivative features, is categorized within the FVTPL category. Impairment GFL uses a forward-looking Expected Credit Loss (“ECL”) model to determine impairment of financial assets. ECLs are based on the difference between the contractual cash flows due in accordance with the contract and all the cash flows that GFL expects to receive. For trade receivables, GFL applies the simplified approach and has determined the allowance based on lifetime ECLs at each reporting date. GFL establishes a provision that is based on GFL’s historical credit loss experience, adjusted for forward-looking factors specific to the customers and the economic environment. Hedge accounting GFL is exposed to the risk of currency fluctuations and has entered into currency derivative contracts and is exposed to the risk of fuel price fluctuations and has entered into fuel derivative contracts to hedge a portion of this exposure on the basis of planned transactions. Where hedge accounting is applied, the criteria are documented at the inception of the hedge and updated at each reporting date. GFL documents the relationship between hedging instruments and hedged items, as well as its risk management objectives and strategy for undertaking the hedging transactions. GFL also documents its assessment, at hedge inception and on an ongoing basis, of whether the derivatives that are used in hedging transactions are highly effective in offsetting changes in cash flows of hedged items.
Accounting policy for Basis of fair values	Basis of fair values Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value measurement is based on the presumption that the transaction to sell the asset or transfer the liability takes place either: ● In the principal market for the asset or liability, or ● In the absence of a principal market, in the most advantageous market for the asset or liability. GFL uses valuation techniques that it believes are appropriate in the circumstances and for which sufficient data are available to measure fair value, maximizing the use of relevant observable inputs and minimizing the use of unobservable inputs. All assets and liabilities for which fair value is measured or disclosed are categorized within the fair value hierarchy, described as follows, based on the lowest level input that is significant to the fair value measurement as a whole: Level 1 — quoted prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 — inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly or indirectly. Level 3 — are unobservable inputs for the asset or liability. Unobservable inputs are used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at the measurement date.
Accounting policy for Critical accounting judgments and estimates	Critical accounting judgments and estimates The preparation of the Annual Financial Statements in conformity with IFRS requires management to make estimates, assumptions and judgments that affect the reported amounts of assets, liabilities, revenue and expense for the period. Such estimates relate to unsettled transactions and events as of the date of the Annual Financial Statements. Accordingly, actual results may differ from estimated amounts as transactions are settled in the future. Estimates and assumptions are reviewed on an ongoing basis. Revisions to estimates are applied prospectively. The following areas are the critical judgments and estimates that management has made in applying GFL’s accounting policies and that have the most significant effect on amounts recognized in the Annual Financial Statements: ● Determining the fair value of acquired assets and liabilities in business combinations, specifically the fair value of acquired intangible assets and acquired landfill assets ● Estimating the amount and timing of the landfill closure and post-closure obligations, specifically the estimated future expenditures associated with landfill capping, closure and post-closure activities ● Determining the key assumptions for impairment testing for long-lived assets
Accounting policy for Foreign currency translation	Foreign currency translation Functional currency Items related to GFL’s subsidiaries are measured using the currency of the primary economic environment in which each entity operates (the functional currency). Foreign currency transactions are translated into the functional currency of each entity using the exchange rates prevailing at the date of the transactions or valuation when items are re-measured. Foreign exchange gains and losses resulting from the settlement of such transactions and from the remeasurement at period-end exchange rates of monetary assets and liabilities denominated in foreign currencies are recognized in the consolidated statement of operations. Foreign operations GFL’s foreign operations are conducted through its subsidiaries located in the United States of America (“US subsidiaries”), whose functional currency is the United States dollar. The assets and liabilities of these US subsidiaries are translated into the presentation currency of GFL using the exchange rate at the reporting date. Revenues and expenses are translated at the average exchange rate for the period. The resulting foreign exchange translation differences are recorded as a currency translation adjustment in other comprehensive income or loss.
Accounting policy for New and amended standards adopted	New and amended standards adopted A number of amended standards became applicable for the current reporting period. GFL was not required to change its accounting policies or make retrospective adjustments as a result of adopting the applicable amended standards.
Accounting policy for New accounting standards issued but not yet effective	New accounting standards issued but not yet effective Certain new accounting standards and interpretations have been published that are not mandatory for the current period and have not been early adopted. For those standards and interpretations applicable to GFL, they are not expected to have a material impact on the Annual Financial Statements in future periods.

SUMMARY OF MATERIAL ACCOUNTIN_3

SUMMARY OF MATERIAL ACCOUNTING POLICIES (Tables)	12 Months Ended
	Dec. 31, 2023
SUMMARY OF MATERIAL ACCOUNTING POLICIES
Schedule of useful lives of property and equipment	Depreciation is computed on a straight-line basis, unless otherwise stated, using the following useful lives: ​ ​ ​ Type of property and equipment Depreciation term Buildings and improvements ​ 10 to 30 years or term of lease Landfills ​ Units of production Vehicles 10 to 20 years Machinery and equipment 3 to 20 years Containers 5 to 10 years Right-of-use assets Shorter of lease term or life of underlying asset(s)
Schedule of useful life of intangible assets	Amortization is based on the estimated useful life using the following methods and rates: ​ ​ ​ ​ ​ Type of intangible asset ​ Amortization term Indefinite life C of A ​ ​ ​ Indefinite Customer lists and municipal contracts ​ Straight-line ​ 5 to 10 years Trade name, definite life C of A and other assets Straight-line 1 to 15 years Non-compete agreements Straight-line 5 years

BUSINESS COMBINATIONS AND INV_2

BUSINESS COMBINATIONS AND INVESTMENTS (Tables)	12 Months Ended
	Dec. 31, 2023
BUSINESS COMBINATIONS AND INVESTMENTS
Summary of purchase price allocation based on the best information available to GFL	The following table presents the purchase price allocation based on the best information available to GFL to date: ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Net working capital, including cash acquired of $6.9 million and $48.1 million, respectively ​ $ (26.4) ​ $ 34.6 Property and equipment ​ ​ 469.5 ​ ​ 614.6 Intangible assets ​ 453.3 ​ 482.3 Goodwill ​ 529.8 ​ 526.4 Lease obligations ​ (29.7) ​ (19.3) Long-term debt ​ ​ (182.5) ​ ​ (64.1) Other long-term liabilities ​ (1.1) ​ (8.0) Landfill closure and post-closure obligations ​ (18.3) ​ (34.9) Deferred income tax liabilities ​ (83.5) ​ (52.4) ​ ​ ​ 1,111.1 ​ ​ 1,479.2 Less:Non-controlling interests ​ ​ — ​ ​ (6.0) Net assets acquired ​ $ 1,111.1 ​ $ 1,473.2 ​ ​ ​ ​ ​ ​ ​ Share capital in subsidiary issued ​ $ 7.4 ​ $ 154.5 Cash paid ​ ​ 897.8 ​ ​ 1,318.7 Contribution from non-controlling interests ​ 205.9 ​ — Total Consideration ​ $ 1,111.1 ​ $ 1,473.2
Summary of investments accounted for using the equity method	​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Investment in associates ​ $ 229.1 ​ 272.1 Investment in joint ventures ​ 89.9 ​ 54.5 ​ ​ $ 319.0 ​ $ 326.6

TRADE AND OTHER RECEIVABLES (Ta

TRADE AND OTHER RECEIVABLES (Tables)	12 Months Ended
	Dec. 31, 2023
TRADE AND OTHER RECEIVABLES
Summary of trade and other receivables	​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Trade ​ $ 1,019.1 ​ $ 1,054.4 Unbilled revenue ​ ​ 71.8 ​ ​ 68.1 Other ​ ​ 18.9 ​ ​ 16.8 Expected credit losses ​ (29.8) ​ (21.2) ​ ​ $ 1,080.0 ​ $ 1,118.1

PREPAID EXPENSES AND OTHER AS_2

PREPAID EXPENSES AND OTHER ASSETS (Tables)	12 Months Ended
	Dec. 31, 2023
PREPAID EXPENSES AND OTHER ASSETS
Summary of prepaid expenses and other assets	​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Prepaid expenses and other assets ​ $ 123.4 ​ $ 98.7 Vehicle parts, supplies and inventory ​ ​ 98.2 ​ $ 84.2 ​ ​ $ 221.6 ​ $ 182.9 ​

PROPERTY AND EQUIPMENT (Tables)

PROPERTY AND EQUIPMENT (Tables)	12 Months Ended
	Dec. 31, 2023
PROPERTY AND EQUIPMENT
Summary of property and equipment	The following table presents the changes in cost and accumulated depreciation of GFL’s property and equipment for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Land, ​ ​ ​ ​ Machinery ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ buildings and ​ ​ ​ ​ ​ ​ ​ and ​ Assets under ​ ​ ​ ​ Right-of- ​ ​ ​ ​ improvements Landfills Vehicles equipment development Containers use assets Total Cost ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2021 ​ $ 1,482.7 ​ $ 2,257.0 ​ $ 2,082.0 ​ $ 1,129.0 ​ $ 69.3 ​ $ 549.3 ​ $ 348.7 ​ $ 7,918.0 Additions ​ ​ 80.3 ​ ​ 135.5 ​ ​ 297.5 ​ ​ 133.3 ​ ​ 119.2 ​ ​ 126.5 ​ ​ 104.2 ​ ​ 996.5 Acquisitions via business combinations ​ ​ 79.1 ​ ​ 220.6 ​ ​ 167.6 ​ ​ 44.2 ​ ​ 6.2 ​ ​ 77.5 ​ ​ 19.4 ​ ​ 614.6 Adjustments for prior year acquisitions ​ ​ — ​ ​ 122.0 ​ ​ (6.5) ​ ​ (0.7) ​ ​ — ​ ​ — ​ ​ 1.5 ​ ​ 116.3 Adjustments for asset retirement obligations ​ ​ — ​ ​ (183.1) ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ — ​ ​ (183.1) Disposals ​ ​ (69.4) ​ ​ (57.1) ​ ​ (50.8) ​ ​ (254.2) ​ ​ (4.8) ​ ​ (1.0) ​ ​ (17.9) ​ ​ (455.2) Transfers ​ ​ 56.0 ​ ​ 94.2 ​ ​ 7.5 ​ ​ (1.4) ​ ​ (148.7) ​ ​ (3.2) ​ ​ (4.4) ​ ​ — Changes in foreign exchange ​ ​ 58.4 ​ ​ 156.0 ​ ​ 96.8 ​ ​ 31.3 ​ ​ 10.4 ​ ​ 39.9 ​ ​ 5.5 ​ ​ 398.3 Balance, December 31, 2022 ​ 1,687.1 ​ 2,745.1 ​ 2,594.1 ​ 1,081.5 ​ 51.6 ​ 789.0 ​ 457.0 ​ 9,405.4 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2022 ​ 1,687.1 ​ 2,745.1 ​ 2,594.1 ​ 1,081.5 ​ 51.6 ​ 789.0 ​ 457.0 ​ 9,405.4 Additions ​ 118.6 ​ 286.5 ​ 386.9 ​ 204.7 ​ 140.0 ​ 94.2 ​ 101.5 ​ 1,332.4 Acquisitions via business combinations ​ 81.0 ​ 120.1 ​ 112.8 ​ 79.8 ​ 0.5 ​ 45.6 ​ 29.7 ​ 469.5 Adjustments for prior year acquisitions ​ 12.5 ​ — ​ (0.2) ​ (0.4) ​ — ​ — ​ — ​ 11.9 Adjustments for asset retirement obligations ​ — ​ 22.5 ​ — ​ — ​ — ​ — ​ — ​ 22.5 Disposals ​ (74.2) ​ (45.2) ​ (250.9) ​ (48.1) ​ (6.5) ​ (57.3) ​ (21.3) ​ (503.5) Transfers ​ ​ 12.7 ​ ​ 13.2 ​ ​ 9.8 ​ ​ — ​ ​ (34.3) ​ ​ 0.3 ​ ​ (1.7) ​ ​ — Changes in foreign exchange ​ (25.5) ​ (64.6) ​ (45.7) ​ (15.6) ​ (2.6) ​ (18.9) ​ (3.0) ​ (175.9) Balance, December 31, 2023 ​ 1,812.2 ​ 3,077.6 ​ 2,806.8 ​ 1,301.9 ​ 148.7 ​ 852.9 ​ 562.2 ​ 10,562.3 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Accumulated depreciation ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2021 ​ 107.1 ​ 474.9 ​ 679.0 ​ 389.2 ​ — ​ 163.0 ​ 94.2 ​ 1,907.4 Depreciation ​ 65.2 ​ 294.6 ​ 302.9 ​ 167.7 ​ — ​ 97.5 ​ 73.0 ​ 1,000.9 Disposals ​ (18.5) ​ (7.8) ​ (31.0) ​ (104.3) ​ — ​ (0.8) ​ (7.2) ​ (169.6) Impairment ​ ​ 11.9 ​ ​ — ​ ​ — ​ ​ 2.3 ​ ​ — ​ ​ — ​ ​ — ​ ​ 14.2 Changes in foreign exchange ​ 5.3 ​ 42.4 ​ 36.4 ​ 13.4 ​ — ​ 12.8 ​ 1.9 ​ 112.2 Balance, December 31, 2022 ​ 171.0 ​ 804.1 ​ 987.3 ​ 468.3 ​ — ​ 272.5 ​ 161.9 ​ 2,865.1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2022 ​ 171.0 ​ 804.1 ​ 987.3 ​ 468.3 ​ — ​ 272.5 ​ 161.9 ​ 2,865.1 Depreciation ​ 70.0 ​ 283.8 ​ 288.3 ​ 166.8 ​ — ​ 116.3 ​ 74.8 ​ 1,000.0 Disposals ​ (13.7) ​ (19.8) ​ (132.0) ​ (28.3) ​ — ​ (26.9) ​ (11.5) ​ (232.2) Impairment ​ ​ — ​ ​ — ​ ​ 8.7 ​ ​ 0.1 ​ ​ — ​ ​ — ​ ​ — ​ ​ 8.8 Changes in foreign exchange ​ (3.1) ​ (22.8) ​ (18.3) ​ (7.1) ​ — ​ (7.7) ​ (1.1) ​ (60.1) Balance, December 31, 2023 ​ 224.2 ​ 1,045.3 ​ 1,134.0 ​ 599.8 ​ — ​ 354.2 ​ 224.1 ​ 3,581.6 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying amounts ​ ​ ​ ​ ​ ​ ​ ​ At December 31, 2022 ​ $ 1,516.1 ​ $ 1,941.0 ​ $ 1,606.8 ​ $ 613.2 ​ $ 51.6 ​ $ 516.5 ​ $ 295.1 ​ $ 6,540.3 At December 31, 2023 ​ $ 1,588.0 ​ $ 2,032.3 ​ $ 1,672.8 ​ $ 702.1 ​ $ 148.7 ​ $ 498.7 ​ $ 338.1 ​ $ 6,980.7

GOODWILL AND INTANGIBLE ASSETS

GOODWILL AND INTANGIBLE ASSETS (Tables)	12 Months Ended
	Dec. 31, 2023
GOODWILL AND INTANGIBLE ASSETS
Disclosure of changes in cost and accumulated amortization of goodwill and intangible assets	The following table presents the changes in cost and accumulated amortization of GFL’s goodwill and intangible assets for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Trade name, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ definite life ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Customer lists C of A ​ ​ ​ ​ ​ ​ ​ ​ Indefinite life ​ and municipal ​ and other ​ Non-compete ​ ​ ​ ​ ​ Goodwill ​ C of A ​ contracts ​ licenses ​ agreements ​ Total Cost ​ ​ ​ ​ ​ ​ Balance, December 31, 2021 $ 7,501.1 $ 811.9 $ 3,219.7 $ 81.5 $ 550.0 ​ $ 12,164.2 Acquisitions via business combinations ​ 526.4 ​ 26.2 ​ 375.7 ​ 0.3 ​ 80.1 ​ ​ 1,008.7 Adjustments for prior year acquisitions ​ ​ 14.6 ​ ​ — ​ ​ (99.2) ​ ​ 20.7 ​ ​ (51.6) ​ ​ (115.5) Other ​ ​ — ​ ​ 0.3 ​ ​ 12.9 ​ ​ — ​ ​ 0.5 ​ ​ 13.7 Disposals ​ (188.5) ​ (2.8) ​ (22.6) ​ — ​ (43.1) ​ ​ (257.0) Changes in foreign exchange ​ 328.8 ​ 4.1 ​ 106.2 ​ 5.6 ​ 28.3 ​ 473.0 Balance, December 31, 2022 ​ ​ 8,182.4 ​ ​ 839.7 ​ ​ 3,592.7 ​ ​ 108.1 ​ ​ 564.2 ​ ​ 13,287.1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2022 ​ 8,182.4 ​ 839.7 ​ 3,592.7 ​ 108.1 ​ 564.2 ​ 13,287.1 Acquisitions via business combinations ​ 529.8 ​ 32.8 ​ 349.5 ​ 38.4 ​ 32.6 ​ ​ 983.1 Adjustments for prior year acquisitions ​ (38.5) ​ — ​ 17.2 ​ — ​ 1.1 ​ ​ (20.2) Other ​ — ​ — ​ 14.4 ​ — ​ — ​ ​ 14.4 Disposals ​ ​ (650.2) ​ ​ (9.7) ​ ​ (254.2) ​ ​ — ​ ​ (67.0) ​ ​ (981.1) Changes in foreign exchange ​ (133.0) ​ (1.8) ​ (45.5) ​ (3.0) ​ (10.1) ​ ​ (193.4) Balance, December 31, 2023 ​ 7,890.5 ​ 861.0 ​ 3,674.1 ​ 143.5 ​ 520.8 ​ 13,089.9 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Accumulated amortization ​ ​ ​ ​ ​ ​ Balance, December 31, 2021 ​ — ​ — ​ 1,101.4 ​ 21.0 ​ 210.7 ​ 1,333.1 Amortization ​ — ​ — ​ 403.2 ​ 9.8 ​ 103.8 ​ 516.8 Disposals ​ ​ — ​ ​ — ​ ​ (12.9) ​ ​ — ​ ​ (25.6) ​ ​ (38.5) Changes in foreign exchange ​ ​ — ​ ​ — ​ ​ 35.8 ​ ​ 1.8 ​ ​ 10.7 ​ ​ 48.3 Balance, December 31, 2022 ​ — ​ — ​ 1,527.5 ​ 32.6 ​ 299.6 ​ 1,859.7 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Balance, December 31, 2022 ​ — ​ — ​ 1,527.5 ​ 32.6 ​ 299.6 ​ 1,859.7 Amortization ​ ​ — ​ ​ — ​ ​ 385.9 ​ ​ 6.9 ​ ​ 92.5 ​ ​ 485.3 Disposals ​ ​ — ​ ​ — ​ ​ (136.1) ​ ​ — ​ ​ (41.7) ​ ​ (177.8) Changes in foreign exchange ​ — ​ — ​ (17.8) ​ (0.8) ​ (5.5) ​ (24.1) Balance, December 31, 2023 ​ — ​ — ​ 1,759.5 ​ 38.7 ​ 344.9 ​ 2,143.1 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Carrying amounts ​ ​ ​ ​ ​ ​ At December 31, 2022 ​ $ 8,182.4 ​ $ 839.7 ​ $ 2,065.2 ​ $ 75.5 ​ $ 264.6 ​ $ 11,427.4 At December 31, 2023 ​ $ 7,890.5 ​ $ 861.0 ​ $ 1,914.6 ​ $ 104.8 ​ $ 175.9 ​ $ 10,946.8

ACCOUNTS PAYABLE AND ACCRUED _2

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Tables)	12 Months Ended
	Dec. 31, 2023
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES
Schedule of accounts payable and accrued liabilities	The following table presents GFL’s accounts payable and accrued liabilities for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Accounts payable ​ $ 711.0 ​ $ 656.7 Accrued liabilities ​ 529.8 ​ 426.9 Accrued interest ​ 89.3 ​ 88.8 Accrued payroll and benefits ​ 141.2 ​ 137.2 Deferred revenue ​ 207.8 ​ 248.1 ​ ​ $ 1,679.1 ​ $ 1,557.7 ​

LANDFILL CLOSURE AND POST-CLO_2

LANDFILL CLOSURE AND POST-CLOSURE OBLIGATIONS (Tables)	12 Months Ended
	Dec. 31, 2023
LANDFILL CLOSURE AND POST-CLOSURE OBLIGATIONS
Summary of GFL's landfill closure and post-closure obligations	The following table presents GFL’s landfill closure and post-closure obligations for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Balance, beginning of year ​ $ 847.2 ​ $ 880.6 Acquisitions via business combinations ​ 18.3 ​ 34.9 Adjustment related to prior year acquisitions ​ — ​ (5.3) Disposals ​ ​ (15.0) ​ ​ (16.4) Provisions ​ ​ 94.9 ​ ​ 92.1 Adjustment for discount and inflation rates ​ 22.5 ​ (183.1) Accretion ​ 34.4 ​ 20.1 Expenditures ​ (32.5) ​ (27.5) Changes in foreign exchange ​ (17.6) ​ 51.8 Balance, end of year ​ 952.2 ​ 847.2 Less: Current portion of landfill closure and post-closure obligations ​ (56.2) ​ (30.8) Non-current portion of landfill closure and post-closure obligations ​ $ 896.0 ​ $ 816.4 ​ ​ ​ ​ ​ ​ Less than 1 year $ 56.2 Between 1-2 years ​ 121.3 Between 2-5 years ​ 188.6 Over 5 years ​ 586.1 ​ ​ $ 952.2

LONG-TERM DEBT (Tables)

LONG-TERM DEBT (Tables)	12 Months Ended
	Dec. 31, 2023
FINANCIAL INSTRUMENTS AND RISK MANAGEMENT
Summary of long-term debt	The following table presents GFL’s long-term debt for the periods indicated: ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Revolving credit facility ​ $ 184.9 ​ $ 771.8 Term Loan A Facility ​ — ​ 500.0 Term Loan B Facility ​ 961.8 ​ 1,742.7 Notes (1) ​ ​ 4.250% USD senior secured notes (“4.250% 2025 Secured Notes”) (2) ​ 661.3 ​ 677.2 3.750% USD senior secured notes (“3.750% 2025 Secured Notes”) (3) ​ 992.0 ​ 1,015.8 5.125% USD senior secured notes (“5.125% 2026 Secured Notes”) (4) ​ 661.3 ​ 677.2 3.500% USD senior secured notes (“3.500% 2028 Secured Notes”) (5) ​ 992.0 ​ 1,015.8 6.750% USD senior secured notes (“6.750% 2031 Secured Notes”) (6) ​ 1,322.6 ​ — 4.000% USD senior notes (“4.000% 2028 Notes”) (7) ​ 992.0 ​ 1,015.8 4.750% USD senior notes (“4.750% 2029 Notes”) (8) ​ 992.0 ​ 1,015.8 4.375% USD senior notes (“4.375% 2029 Notes”) (9) ​ 727.4 ​ 744.9 Other ​ 347.3 ​ 75.0 Subtotal ​ 8,834.6 ​ 9,252.0 Discount ​ (9.6) ​ (5.5) Derivative liability ​ 90.9 ​ 79.9 Deferred finance costs ​ (79.0) ​ (59.6) Total long-term debt ​ 8,836.9 ​ 9,266.8 Less: Current portion of long-term debt ​ 9.7 ​ 17.9 Non-current portion of long-term debt ​ $ 8,827.2 ​ $ 9,248.9 ​ ​ ​ ​ ​ ​ ​ Total long-term debt ​ ​ 8,836.9 ​ ​ 9,266.8 Less: Derivative asset ​ ​ (20.0) ​ ​ (58.3) Total long-term debt, net of derivative asset ​ $ 8,816.9 ​ $ 9,208.5 ​ (1) Refer to Note 20 for additional information on the hedging arrangements related to the Notes. (2) The 4.250% 2025 Secured Notes bear interest semi-annually which commenced on December 1, 2020 with principal maturing on June 1, 2025. (3) The 3.750% 2025 Secured Notes bear interest semi-annually which commenced on February 1, 2021 with principal maturing on August 1, 2025. (4) The 5.125% 2026 Secured Notes bear interest semi-annually which commenced on December 15, 2019 with principal maturing on December 15, 2026. (5) The 3.500% 2028 Secured Notes bear interest semi-annually which commenced on September 1, 2021 with principal maturing on September 1, 2028. (6) The 6.750% 2031 Secured Notes bear interest semi-annually commencing on January 15, 2024 with principal maturing on January 15, 2031. (7) The 4.000% 2028 Notes are comprised of US$500.0 million of initial notes and US$250.0 million of additional notes. The initial notes and additional notes bear interest semi-annually which commenced on February 1, 2021 and February 1, 2022, respectively. The total principal matures on August 1, 2028. (8) The 4.750% 2029 Notes bear interest semi-annually which commenced on December 15, 2021 with principal maturing on June 15, 2029. (9) The 4.375% 2029 Notes bear interest semi-annually which commenced on February 15, 2022 with principal maturing on August 15, 2029.
Schedule of changes in long-term debt arising from financing activities	The following table presents GFL’s opening balances of long-term debt reconciled to closing balances: ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Balance, beginning of year ​ $ 9,266.8 ​ $ 8,001.8 Cash flows ​ ​ ​ ​ Issuance of long-term debt ​ 4,972.3 ​ 1,656.4 Repayment of long-term debt ​ (5,365.1) ​ (904.5) Payment of financing costs ​ (38.2) ​ (2.7) Long-term debt via business combinations ​ ​ 182.5 ​ ​ 73.3 Proceeds from termination of swap instrument ​ ​ 17.3 ​ ​ — Non-cash changes ​ ​ Accrued interest and other non-cash changes ​ 7.4 ​ 16.0 Revaluation of foreign exchange ​ (217.1) ​ 504.3 Fair value movements on cash flow hedges ​ 11.0 ​ (77.8) Balance, end of year ​ $ 8,836.9 ​ $ 9,266.8
Schedule of maturities	The following table presents GFL’s principal future payments on long-term debt: ​ ​ ​ ​ 2024 $ 9.7 2025 ​ 1,680.6 2026 ​ 855.8 2027 ​ 999.0 2028 ​ 2,247.5 Thereafter ​ 3,042.0 ​ ​ $ 8,834.6 ​

INTEREST AND OTHER FINANCE CO_2

INTEREST AND OTHER FINANCE COSTS (Tables)	12 Months Ended
	Dec. 31, 2023
INTEREST AND OTHER FINANCE COSTS
Summary of interest and other finance costs	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Interest ​ $ 532.7 ​ $ 427.1 Termination of hedged arrangements ​ ​ 8.7 ​ ​ — Amortization of deferred financing costs ​ 18.6 ​ 13.8 Accretion of landfill closure and post-closure obligations ​ 34.4 ​ 20.1 Other finance costs ​ 32.8 ​ 28.3 Interest and other finance costs ​ $ 627.2 ​ $ 489.3 ​

LEASE OBLIGATIONS (Tables)

LEASE OBLIGATIONS (Tables)	12 Months Ended
	Dec. 31, 2023
LANDFILL CLOSURE AND POST-CLOSURE OBLIGATIONS
Summary of additional information about leasing activities for lessee	​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Lease obligations $ 610.4 $ 480.1 Less: Interest ​ 167.4 ​ 101.3 ​ ​ 443.0 ​ 378.8 Less: Current portion of lease obligations ​ 59.6 ​ 51.5 Non-current portion of lease obligations ​ $ 383.4 ​ $ 327.3
Schedule of maturities of operating lease payments	​ ​ ​ ​ ​ 2024 $ 85.5 2025 ​ 75.0 2026 ​ 142.0 2027 ​ 38.0 2028 ​ 33.3 Thereafter ​ 236.6 ​ ​ $ 610.4 ​

TANGIBLE EQUITY UNITS (Tables)

TANGIBLE EQUITY UNITS (Tables)	12 Months Ended
	Dec. 31, 2023
TANGIBLE EQUITY UNITS
Summary of components of tangible equity units	​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Amortizing Notes ​ $ — ​ $ 15.5 Purchase Contracts ​ — ​ 1,009.4 ​ ​ — ​ 1,024.9 Less: Current portion of TEU ​ — ​ (1,024.9) Non-current portion of TEU ​ $ — ​ $ — ​

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
	Dec. 31, 2023
INCOME TAXES
Schedule of income tax reconciliation	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Income (loss) before income taxes ​ $ 192.1 ​ $ (359.3) Income tax expenses (recovery) at the combined basic federal and provincial tax rate (26.5% in 2023; and 26.5% in 2022) ​ 50.9 ​ (95.2) Decrease (increase) resulting from: ​ ​ ​ Permanent differences ​ 124.6 ​ (87.0) Variance between combined Canadian tax rate and the tax rate applicable to U.S. income ​ (0.7) ​ 3.7 (Recognition) de-recognition of deferred income tax assets ​ (15.8) ​ 1.2 Other ​ 0.9 ​ 1.2 Income tax expenses (recovery) ​ $ 159.9 ​ $ (176.1)
Schedule of deferred tax assets and liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Recognized in ​ ​ ​ Balance, ​ Acquisitions ​ ​ ​ ​ ​ ​ ​ other ​ Balance, ​ ​ December ​ via business ​ Foreign ​ Recognized ​ comprehensive ​ December ​ ​ 31, 2022 ​ combinations ​ exchange ​ in net loss ​ loss ​ 31, 2023 Deferred income tax assets ​ ​ ​ ​ ​ ​ Non-capital loss carry forwards ​ $ 464.7 ​ $ — ​ $ (2.7) ​ $ (5.7) ​ $ — ​ $ 456.3 Landfill closures and post-closure obligations ​ 205.0 ​ — ​ (4.1) ​ 13.8 ​ — ​ 214.7 Accrued liabilities ​ 3.4 ​ — ​ (0.1) ​ 1.0 ​ — ​ 4.3 Other ​ 194.7 ​ 11.9 ​ (1.0) ​ (23.0) ​ (0.4) ​ 182.2 ​ ​ $ 867.8 ​ $ 11.9 ​ $ (7.9) ​ $ (13.9) ​ $ (0.4) ​ $ 857.5 Deferred income tax liabilities ​ ​ ​ ​ ​ ​ Property and equipment ​ $ 929.9 ​ $ 11.8 ​ $ (16.9) ​ $ (85.8) ​ $ — ​ $ 839.0 Intangible assets ​ 592.1 ​ 85.0 ​ (4.5) ​ (136.6) ​ — ​ 536.0 Cash flow hedges ​ (15.8) ​ — ​ — ​ 0.4 ​ 9.8 ​ (5.6) Other ​ (55.8) ​ 3.3 ​ (1.2) ​ 11.0 ​ — ​ (42.7) ​ ​ $ 1,450.4 ​ $ 100.1 ​ $ (22.6) ​ $ (211.0) ​ $ 9.8 ​ $ 1,326.7 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Recognized in ​ ​ ​ ​ ​ Balance, ​ ​ ​ ​ Acquisitions ​ ​ ​ ​ ​ ​ ​ other ​ Balance, ​ ​ December ​ Discontinued ​ via business ​ Foreign ​ Recognized ​ comprehensive ​ December ​ 31, 2021 operations combinations exchange in net loss loss 31, 2022 Deferred tax assets ​ ​ ​ ​ ​ ​ ​ ​ ​ Non-capital loss carry forwards ​ $ 446.8 ​ $ (13.8) ​ $ 5.7 ​ $ 11.0 ​ $ 15.0 ​ $ — $ 464.7 Landfill closures and post-closure obligations ​ 178.1 ​ ​ — ​ 0.9 ​ 9.8 ​ 16.2 ​ — ​ 205.0 Accrued liabilities ​ 1.2 ​ ​ — ​ (0.3) ​ 1.2 ​ 1.3 ​ — ​ 3.4 Other ​ 134.2 ​ ​ 19.2 ​ 6.1 ​ (2.0) ​ 37.2 ​ — ​ 194.7 ​ ​ $ 760.3 ​ $ 5.4 ​ $ 12.4 ​ $ 20.0 ​ $ 69.7 ​ $ — $ 867.8 Deferred tax liabilities ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Property and equipment ​ $ 774.9 ​ $ (13.5) ​ $ 62.6 ​ $ 60.0 ​ $ 45.9 ​ $ — $ 929.9 Intangible assets ​ 711.7 ​ ​ (1.9) ​ 3.4 ​ (1.7) ​ (119.4) ​ — ​ 592.1 Cash flow hedges ​ 5.8 ​ ​ — ​ — ​ — ​ — ​ (21.6) ​ (15.8) Other ​ (8.2) ​ ​ (3.7) ​ (2.0) ​ (4.6) ​ (37.3) ​ — ​ (55.8) ​ ​ $ 1,484.2 ​ $ (19.1) ​ $ 64.0 ​ $ 53.7 ​ $ (110.8) ​ $ (21.6) $ 1,450.4 ​

LOSS PER SHARE (Tables)

LOSS PER SHARE (Tables)	12 Months Ended
	Dec. 31, 2023
LOSS PER SHARE
Schedule of loss per share	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Net income (loss) attributable to GFL Environmental Inc. ​ $ 45.4 ​ $ (311.8) ​ ​ ​ ​ ​ Less: ​ ​ ​ ​ ​ ​ Net loss from discontinued operations ​ — ​ (127.9) Amounts attributable to preferred shareholders ​ ​ 92.2 ​ ​ 83.0 Adjusted net loss from continuing operations ​ ​ (46.8) ​ ​ (266.9) ​ ​ ​ ​ ​ ​ ​ Weighted and diluted weighted average number of shares outstanding ​ ​ 369,656,237 ​ ​ 367,170,911 ​ ​ ​ ​ ​ ​ ​ Basic and diluted loss per share ​ ​ ​ ​ ​ ​ Continuing operations ​ $ (0.13) ​ $ (0.73) Discontinued operations ​ ​ — ​ ​ (0.35) Total operations ​ $ (0.13) ​ $ (1.08) ​

REVENUE (Tables)

REVENUE (Tables)	12 Months Ended
	Dec. 31, 2023
REVENUE
Schedule of disaggregation of revenue from contracts with customers	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Residential ​ $ 1,538.4 ​ $ 1,488.8 Commercial/industrial ​ 2,881.8 ​ 2,461.3 Total collection ​ 4,420.2 ​ 3,950.1 Landfill ​ 940.1 ​ 837.7 Transfer ​ 753.7 ​ 671.8 Material recovery ​ 322.5 ​ 346.3 Other ​ 404.9 ​ 415.3 Solid Waste ​ 6,841.4 ​ 6,221.2 Environmental Services ​ ​ 1,620.6 ​ ​ 1,343.2 Intercompany revenue ​ (946.5) ​ (803.1) Revenue ​ $ 7,515.5 ​ $ 6,761.3 ​

OPERATING SEGMENTS (Tables)

OPERATING SEGMENTS (Tables)	12 Months Ended
	Dec. 31, 2023
OPERATING SEGMENTS
Schedule of operating segments	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, 2023 ​ ​ Gross ​ Intercompany ​ ​ ​ Adjusted ​ ​ Revenue ​ Revenue ​ Revenue ​ EBITDA Solid Waste ​ ​ ​ ​ Canada ​ $ 2,085.0 ​ $ (265.8) ​ $ 1,819.2 ​ $ 499.3 USA ​ 4,756.4 ​ (523.0) ​ 4,233.4 ​ 1,365.9 Solid Waste ​ 6,841.4 ​ (788.8) ​ 6,052.6 ​ 1,865.2 Environmental Services ​ 1,620.6 ​ (157.7) ​ 1,462.9 ​ 382.8 Corporate ​ — ​ — ​ — ​ (244.3) ​ ​ $ 8,462.0 ​ $ (946.5) ​ $ 7,515.5 ​ $ 2,003.7 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, 2022 ​ ​ Gross ​ Intercompany ​ ​ ​ ​ Adjusted ​ ​ Revenue ​ Revenue ​ Revenue ​ EBITDA Solid Waste ​ ​ ​ ​ Canada ​ $ 1,926.5 ​ $ (248.3) ​ $ 1,678.2 ​ $ 451.5 USA ​ 4,294.7 ​ (460.5) ​ 3,834.2 ​ 1,149.5 Solid Waste ​ 6,221.2 ​ (708.8) ​ 5,512.4 ​ 1,601.0 Environmental Services ​ 1,343.2 ​ (94.3) ​ 1,248.9 ​ 307.4 Corporate ​ — ​ — ​ — ​ (187.6) ​ ​ $ 7,564.4 ​ $ (803.1) ​ $ 6,761.3 ​ $ 1,720.8 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Net income (loss) from continuing operations ​ $ 32.2 ​ $ (183.2) Add: ​ ​ Depreciation of property and equipment ​ 1,004.4 ​ 1,003.9 Amortization of intangible assets ​ 485.3 ​ 515.6 Interest and other finance costs ​ 627.2 ​ 489.3 Income tax expense (recovery) ​ ​ 159.9 ​ ​ (176.1) (Gain) loss on foreign exchange ​ (72.9) ​ 217.7 (Gain) loss on sale of property and equipment ​ (13.1) ​ 4.7 Mark-to-market loss (gain) on Purchase Contracts ​ 104.3 ​ (266.8) Share of net loss (income) of investments accounted for using the equity method ​ ​ 61.6 ​ ​ (20.7) Share-based payments ​ 124.8 ​ 53.3 Gain on divestiture ​ (580.5) ​ (4.9) Transaction costs ​ 78.4 ​ 55.0 Acquisition, rebranding and other integration costs ​ 15.3 ​ 25.8 Other ​ ​ (23.2) ​ ​ 7.2 Adjusted EBITDA ​ $ 2,003.7 ​ $ 1,720.8 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 Solid Waste ​ ​ Canada ​ $ 2,091.7 ​ $ 2,079.6 USA ​ 5,601.7 ​ 6,046.2 Environmental Services ​ 1,058.1 ​ 896.3 ​ ​ $ 8,751.5 ​ $ 9,022.1 ​
Schedule of geographical information	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Revenue Non-current assets ​ ​ Year ended ​ Year ended ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 December 31, 2023 December 31, 2022 Canada ​ $ 2,946.6 ​ $ 2,676.9 ​ $ 6,577.0 ​ $ 6,236.8 USA ​ 4,568.9 ​ 4,084.4 ​ 11,817.2 ​ 12,147.7 ​ ​ $ 7,515.5 ​ $ 6,761.3 ​ $ 18,394.2 ​ $ 18,384.5 ​

SHAREHOLDER'S CAPITAL (Tables)

SHAREHOLDER'S CAPITAL (Tables)	12 Months Ended
	Dec. 31, 2023
SHAREHOLDER'S CAPITAL
Summary of share issuances and cancellations	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Subordinate ​ Multiple voting ​ Preferred ​ ​ ​ voting shares shares shares Total Balance, December 31, 2022 331,629,917 11,812,964 36,768,149 380,211,030 Converted from RSUs 2,053,782 — — 2,053,782 Converted from TEUs 25,666,465 — — 25,666,465 Cancelled during the year (260) — — (260) Balance, December 31, 2023 359,349,904 11,812,964 36,768,149 407,931,017
Summary of number and weighted average exercise prices of share options	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted average ​ Options exercise price (US$) Share options outstanding, December 31, 2022 22,128,582 ​ $ 32.59 Granted 150,000 ​ 33.00 Share options outstanding, December 31, 2023 22,278,582 ​ $ 32.59 Vested share options, December 31, 2023 8,229,297 ​ $ 28.93
Summary of number and grant date fair value of RSUs and DSUs	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Grant date fair value ​ Grant date fair value ​ ​ RSUs ​ (US$) ​ DSUs ​ (US$) Outstanding, December 31, 2022 1,906,769 ​ $ 28.10 60,960 ​ $ 28.50 Granted 2,581,840 ​ 31.30 29,573 ​ 33.14 Settled (2,050,551) ​ 29.03 — ​ — Forfeited (109,416) ​ 30.03 — ​ — Cancelled ​ (16,881) ​ ​ 30.25 ​ — ​ ​ — Outstanding, December 31, 2023 2,311,761 ​ $ 30.74 90,533 ​ $ 30.02 Expected to vest, December 31, 2023 2,125,322 ​ $ 30.63 90,533 ​ $ 30.02

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	12 Months Ended
	Dec. 31, 2023
SUPPLEMENTAL CASH FLOW INFORMATION
Schedule of supplemental cash flow information	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Effects of changes in ​ ​ ​ ​ ​ ​ Accounts payable and accrued liabilities ​ $ (3.4) ​ $ 160.4 Trade and other receivables, net ​ 57.7 ​ ​ (221.0) Prepaid expenses and other assets ​ (23.3) ​ ​ (24.9) Changes in non-cash working capital items ​ $ 31.0 ​ $ (85.5) ​

FINANCIAL INSTRUMENTS AND RIS_2

FINANCIAL INSTRUMENTS AND RISK MANAGEMENT (Tables)	12 Months Ended
	Dec. 31, 2023
FINANCIAL INSTRUMENTS AND RISK MANAGEMENT
Summary of financial liabilities	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 ​ Carrying Value Fair Value Level 1 Level 2 Level 3 Notes ​ $ 7,337.4 ​ $ 7,087.5 ​ $ — ​ $ 7,087.5 ​ $ — ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2022 ​ ​ Carrying Value Fair Value Level 1 Level 2 Level 3 Notes ​ $ 6,157.0 ​ $ 5,568.6 ​ $ — ​ $ 5,568.6 ​ $ — Amortizing Notes ​ ​ 15.5 ​ ​ 15.5 ​ ​ 15.5 ​ ​ — ​ ​ — ​
Schedule of breakdown of trade receivables aging	​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2023 December 31, 2022 0-60 days ​ $ 787.8 ​ $ 781.4 61-90 days ​ 103.7 ​ 107.8 91+ days ​ 127.6 ​ 165.2 ​ ​ $ 1,019.1 ​ $ 1,054.4
Schedule of currency swaps	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Notional ​ ​ ​ ​ ​ Fixed Foreign ​ ​ ​ ​ ​ ​ Amount ​ Fixed/Variable ​ Fixed/Variable Interest ​ Exchange ​ ​ ​ ​ Underlying Items ($US) Interest Rate Paid Rate Received Rate Paid Effective Date Expiration 4.250% 2025 Secured Notes 500.0 4.805 % 4.250 % 1.4198 ​ April 29, 2020 ​ June 1, 2025 5.125% 2026 Secured Notes 500.0 5.725 % 5.125 % 1.3245 ​ December 16, 2019 ​ December 15, 2026 8.500% 2027 Notes 48.0 8.399 % 8.500 % 1.3355 ​ April 23, 2019 ​ May 1, 2027 8.500% 2027 Notes 300.0 8.419 % 8.500 % 1.3355 ​ April 23, 2019 ​ May 1, 2027 8.500% 2027 Notes 348.0 8.500 % 8.828 % 1.2026 ​ June 8, 2021 ​ May 1, 2027 4.000% 2028 Notes ​ 500.0 ​ 4.524 % 4.000 % 1.3112 ​ November 23, 2020 ​ August 1, 2028 4.750% 2029 Notes 350.0 5.317 % 4.750 % 1.2026 ​ June 8, 2021 ​ June 8, 2029

EXPENSES BY NATURE (Tables)

EXPENSES BY NATURE (Tables)	12 Months Ended
	Dec. 31, 2023
EXPENSES BY NATURE
Schedule of expenses by nature	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Employee benefits ​ $ 2,302.2 ​ $ 2,011.3 Transfer and disposal costs ​ 1,465.1 ​ 1,415.2 Interest and other finance costs ​ 627.2 ​ 489.3 Depreciation of property and equipment ​ 1,004.4 ​ 1,003.9 Amortization of intangible assets ​ 485.3 ​ 515.6 Other expenses ​ 843.9 ​ 725.9 Transaction costs ​ 78.4 ​ 55.0 Acquisition, rebranding and other integration costs ​ 15.3 ​ 25.8 Maintenance and repairs ​ 525.9 ​ 480.9 Fuel costs ​ 374.7 ​ 405.4 (Gain) loss on foreign exchange ​ (72.9) ​ 217.7 Share-based payments ​ 124.8 ​ 55.1 (Gain) loss on sale of property and equipment ​ (13.1) ​ 4.7 Gain on divestiture ​ (580.5) ​ (4.9) Mark-to-market loss (gain) on Purchase Contracts ​ 104.3 ​ (266.8) Other ​ (23.2) ​ 7.2 Total expenses by nature ​ $ 7,261.8 ​ $ 7,141.3 ​

DISCONTINUED OPERATIONS (Tables

DISCONTINUED OPERATIONS (Tables)	12 Months Ended
	Dec. 31, 2023
DISCONTINUED OPERATIONS
Summary of post-tax results of the discontinued operations	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Revenue ​ $ — ​ $ 96.8 Expenses ​ — ​ 98.4 Loss before income taxes ​ — ​ (1.6) Income tax expense ​ — ​ 5.0 Net loss ​ — ​ (6.6) Impairment ​ — ​ (121.3) Net loss and comprehensive loss from discontinued operations ​ $ — ​ $ (127.9) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year ended December 31, ​ 2023 2022 Operating cash flows from discontinued operations ​ $ — ​ $ (35.4) Investing cash flows from discontinued operations ​ — ​ (7.2) Financing cash flows from discontinued operations ​ — ​ (1.0) Decrease in cash from discontinued operations ​ $ — ​ $ (43.6) ​

SUMMARY OF MATERIAL ACCOUNTIN_4

SUMMARY OF MATERIAL ACCOUNTING POLICIES - Useful life of property, plant and equipment (Details)	12 Months Ended
	Dec. 31, 2023
Buildings and improvements | Bottom of range
Disclosure of detailed information about property, plant and equipment
Useful life measured as period of time, property, plant and equipment	10 years
Buildings and improvements | Top of range
Disclosure of detailed information about property, plant and equipment
Useful life measured as period of time, property, plant and equipment	30 years
Landfills
Disclosure of detailed information about property, plant and equipment
Description of useful life, property, plant and equipment	Units of production
Vehicles | Bottom of range
Disclosure of detailed information about property, plant and equipment
Useful life measured as period of time, property, plant and equipment	10 years
Vehicles | Top of range
Disclosure of detailed information about property, plant and equipment
Useful life measured as period of time, property, plant and equipment	20 years
Machinery and equipment | Bottom of range
Disclosure of detailed information about property, plant and equipment
Useful life measured as period of time, property, plant and equipment	3 years
Machinery and equipment | Top of range
Disclosure of detailed information about property, plant and equipment
Useful life measured as period of time, property, plant and equipment	20 years
Containers | Bottom of range
Disclosure of detailed information about property, plant and equipment
Useful life measured as period of time, property, plant and equipment	5 years
Containers | Top of range
Disclosure of detailed information about property, plant and equipment
Useful life measured as period of time, property, plant and equipment	10 years
Right-of-use assets
Disclosure of detailed information about property, plant and equipment
Description of useful life, property, plant and equipment	Shorter of lease term or life of underlying asset(s)

SUMMARY OF MATERIAL ACCOUNTIN_5

SUMMARY OF MATERIAL ACCOUNTING POLICIES - Useful life of intangible assets (Details)	12 Months Ended
	Dec. 31, 2023
Indefinite Life C of A
Disclosure of detailed information about intangible assets
Indefinite useful life of intangible assets	Indefinite
Customer lists and municipal contracts | Bottom of range
Disclosure of detailed information about intangible assets
Estimated useful life	5 years
Customer lists and municipal contracts | Top of range
Disclosure of detailed information about intangible assets
Estimated useful life	10 years
Trade name, definite life C of A and other licenses | Bottom of range
Disclosure of detailed information about intangible assets
Estimated useful life	1 year
Trade name, definite life C of A and other licenses | Top of range
Disclosure of detailed information about intangible assets
Estimated useful life	15 years
Non-compete agreements
Disclosure of detailed information about intangible assets
Estimated useful life	5 years

SUMMARY OF MATERIAL ACCOUNTIN_6

SUMMARY OF MATERIAL ACCOUNTING POLICIES - Revenue recognition (Details)	12 Months Ended
	Dec. 31, 2023
Bottom of range
Disclosure of disaggregation of revenue from contracts with customers
Revenue, performance obligation	3 years
Scheduled service for customers contracts	3 years
Top of range
Disclosure of disaggregation of revenue from contracts with customers
Revenue, performance obligation	10 years
Scheduled service for customers contracts	5 years

BUSINESS COMBINATIONS AND INV_3

BUSINESS COMBINATIONS AND INVESTMENTS - Narrative (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 CAD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 USD ($)
Disclosure of detailed information about business combination
Additional consideration related to acquisitions from prior years	$ 31.2		$ 18.5
Net income (loss) attributable to GFL Environmental Inc.	45.4		(311.8)
Revenue	7,515.5		6,761.3
Purchase of interests		$ 19		$ 0
Share of profit from continuing operations and total comprehensive income from associates		62.1		21.1
Purchase of interests in investments accounted for using equity method		44.9		47.6
Share of profit from continuing operations and total comprehensive income from joint venture		$ 0		$ 0.4
Deferred income tax liabilities
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	(4.7)
lease obligations
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	0.2
Closure and post-closure obligations
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	(1.1)
Intangible assets
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	(21.3)
Property, plant and equipment
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	31
Goodwill [Member]
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	0.1
Net working capital
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	(15.4)
Business Combinations In Current Fiscal Year
Disclosure of detailed information about business combination
Net income (loss) attributable to GFL Environmental Inc.	29.8
Pro-forma revenue	7,763.6
Pro-forma net income (loss)	(234.3)
Revenue	209.1
Solid waste management businesses
Disclosure of detailed information about business combination
Goodwill expected to be deductible for tax purposes	$ 143.7		$ 279.2

BUSINESS COMBINATIONS AND INV_4

BUSINESS COMBINATIONS AND INVESTMENTS - Assets Acquired and Liabilities Assumed (Details) - Solid waste management businesses - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Net assets acquired
Cash and cash equivalents recognised as of acquisition date	$ 6.9	$ 48.1
Net working capital, including cash acquired of $6.9 million and $48.1 million, respectively	(26.4)	34.6
Property and equipment	469.5	614.6
Intangible assets	453.3	482.3
Goodwill	529.8	526.4
Lease obligations	(29.7)	(19.3)
Long-term debt	(182.5)	(64.1)
Other long-term liabilities	(1.1)	(8)
Landfill closure and post-closure obligations	(18.3)	(34.9)
Deferred income tax liabilities	(83.5)	(52.4)
Identifiable assets recognised	1,111.1	1,479.2
Less:Non-controlling interests		(6)
Net assets acquired	1,111.1	1,473.2
Acquisition-date fair value of total consideration transferred
Share capital in subsidiary issued	7.4	154.5
Cash paid	897.8	1,318.7
Contribution from non-controlling interest	205.9
Total Consideration	$ 1,111.1	$ 1,473.2

BUSINESS COMBINATIONS AND INV_5

BUSINESS COMBINATIONS AND INVESTMENTS - Summary of investments accounted for using the equity method (Details) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Investments Accounted For Using Equity Method [Abstract]
Investment in associates	$ 229.1	$ 272.1
Investment in joint ventures	89.9	54.5
Total	$ 319	$ 326.6

TRADE AND OTHER RECEIVABLES (De

TRADE AND OTHER RECEIVABLES (Details) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
TRADE AND OTHER RECEIVABLES
Trade	$ 1,019.1	$ 1,054.4
Unbilled revenue	71.8	68.1
Other	18.9	16.8
Expected credit losses	(29.8)	(21.2)
Trade and other receivables, net	$ 1,080	$ 1,118.1

PREPAID EXPENSES AND OTHER AS_3

PREPAID EXPENSES AND OTHER ASSETS (Details) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
PREPAID EXPENSES AND OTHER ASSETS
Prepaid expenses and other assets	$ 123.4	$ 98.7
Vehicle parts, supplies and inventory	98.2	84.2
Prepaid expenses and other assets	$ 221.6	$ 182.9

PROPERTY AND EQUIPMENT (Details

PROPERTY AND EQUIPMENT (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	$ 6,540.3
Changes in property, plant and equipment [abstract]
Ending balance	6,980.7	$ 6,540.3
Changes in property, plant and equipment and right-of-use assets [Abstract]
Depreciation of property plant and equipment excluding discontinue operations	1,004.4	1,003.9
Depreciation of property and equipment	1,004.4	1,008.7
Depreciation difference between risk-free discount rate considered for ARO and annual valuations	4.4	7.8
Landfill closure and post-closure obligations
Changes in property, plant and equipment and right-of-use assets [Abstract]
Depreciation of property and equipment (inclusive of infrastructure and depreciation difference between risk free discount rate considered for ARO)	4.4	7.8
Cost of sales
Changes in property, plant and equipment and right-of-use assets [Abstract]
Depreciation of property and equipment	974.9	974.8
Selling, general and administrative expenses
Changes in property, plant and equipment and right-of-use assets [Abstract]
Depreciation of property and equipment	29.5	29.1
Cost
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	9,405.4	7,918
Changes in property, plant and equipment [abstract]
Adjustments for asset retirement obligations		(183.1)
Ending balance	10,562.3	9,405.4
Changes in property, plant and equipment and right-of-use assets [Abstract]
Transfers	0	0
Disposals	(503.5)	(455.2)
Changes in foreign exchange	(175.9)	398.3
Adjustments for prior year acquisitions	11.9	116.3
Adjustments for asset retirement obligations	22.5
Acquisitions via business combinations	469.5	614.6
Additions	1,332.4	996.5
Accumulated depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(2,865.1)	(1,907.4)
Changes in property, plant and equipment [abstract]
Impairment		14.2
Ending balance	(3,581.6)	(2,865.1)
Changes in property, plant and equipment and right-of-use assets [Abstract]
Depreciation	1,000	1,000.9
Disposals	(232.2)	(169.6)
Impairment	8.8
Changes in foreign exchange	(60.1)	112.2
Depreciation of property and equipment (inclusive of infrastructure and depreciation difference between risk free discount rate considered for ARO)	1,000	1,000.9
Land, buildings and improvements
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	1,516.1
Changes in property, plant and equipment [abstract]
Ending balance	1,588	1,516.1
Land, buildings and improvements | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	1,687.1	1,482.7
Changes in property, plant and equipment [abstract]
Additions	118.6	80.3
Acquisitions via business combinations	81	79.1
Adjustments for prior year acquisitions	12.5	0
Adjustments for asset retirement obligations	0	0
Disposals	(74.2)	(69.4)
Transfers	12.7	56
Changes in foreign exchange	(25.5)	58.4
Ending balance	1,812.2	1,687.1
Land, buildings and improvements | Accumulated depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(171)	(107.1)
Changes in property, plant and equipment [abstract]
Depreciation	(70)	(65.2)
Disposals	(13.7)	(18.5)
Impairment	0	11.9
Changes in foreign exchange	3.1	(5.3)
Ending balance	(224.2)	(171)
Landfills
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	1,941
Changes in property, plant and equipment [abstract]
Ending balance	2,032.3	1,941
Landfills | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	2,745.1	2,257
Changes in property, plant and equipment [abstract]
Additions	286.5	135.5
Acquisitions via business combinations	120.1	220.6
Adjustments for prior year acquisitions	0	122
Adjustments for asset retirement obligations	22.5	(183.1)
Disposals	(45.2)	(57.1)
Transfers	13.2	94.2
Changes in foreign exchange	(64.6)	156
Ending balance	3,077.6	2,745.1
Landfills | Accumulated depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(804.1)	(474.9)
Changes in property, plant and equipment [abstract]
Depreciation	(283.8)	(294.6)
Disposals	(19.8)	(7.8)
Impairment	0	0
Changes in foreign exchange	22.8	(42.4)
Ending balance	(1,045.3)	(804.1)
Vehicles
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	1,606.8
Changes in property, plant and equipment [abstract]
Ending balance	1,672.8	1,606.8
Vehicles | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	2,594.1	2,082
Changes in property, plant and equipment [abstract]
Additions	386.9	297.5
Acquisitions via business combinations	112.8	167.6
Adjustments for prior year acquisitions	(0.2)	(6.5)
Adjustments for asset retirement obligations	0	0
Disposals	(250.9)	(50.8)
Transfers	9.8	7.5
Changes in foreign exchange	(45.7)	96.8
Ending balance	2,806.8	2,594.1
Vehicles | Accumulated depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(987.3)	(679)
Changes in property, plant and equipment [abstract]
Depreciation	(288.3)	(302.9)
Disposals	(132)	(31)
Impairment	8.7	0
Changes in foreign exchange	18.3	(36.4)
Ending balance	(1,134)	(987.3)
Machinery and equipment
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	613.2
Changes in property, plant and equipment [abstract]
Ending balance	702.1	613.2
Machinery and equipment | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	1,081.5	1,129
Changes in property, plant and equipment [abstract]
Additions	204.7	133.3
Acquisitions via business combinations	79.8	44.2
Adjustments for prior year acquisitions	(0.4)	(0.7)
Adjustments for asset retirement obligations	0	0
Disposals	(48.1)	(254.2)
Transfers	0	(1.4)
Changes in foreign exchange	(15.6)	31.3
Ending balance	1,301.9	1,081.5
Machinery and equipment | Accumulated depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(468.3)	(389.2)
Changes in property, plant and equipment [abstract]
Depreciation	(166.8)	(167.7)
Disposals	(28.3)	(104.3)
Impairment	0.1	2.3
Changes in foreign exchange	7.1	(13.4)
Ending balance	(599.8)	(468.3)
Assets under development
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	51.6
Changes in property, plant and equipment [abstract]
Ending balance	148.7	51.6
Assets under development | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	51.6	69.3
Changes in property, plant and equipment [abstract]
Additions	140	119.2
Acquisitions via business combinations	0.5	6.2
Adjustments for prior year acquisitions	0	0
Adjustments for asset retirement obligations	0	0
Disposals	(6.5)	(4.8)
Transfers	(34.3)	(148.7)
Changes in foreign exchange	(2.6)	10.4
Ending balance	148.7	51.6
Assets under development | Accumulated depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	0	0
Changes in property, plant and equipment [abstract]
Depreciation	0	0
Disposals	0	0
Impairment	0	0
Changes in foreign exchange	0	0
Ending balance	0	0
Containers
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	516.5
Changes in property, plant and equipment [abstract]
Ending balance	498.7	516.5
Containers | Cost
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	789	549.3
Changes in property, plant and equipment [abstract]
Additions	94.2	126.5
Acquisitions via business combinations	45.6	77.5
Adjustments for prior year acquisitions	0	0
Adjustments for asset retirement obligations	0	0
Disposals	(57.3)	(1)
Transfers	0.3	(3.2)
Changes in foreign exchange	(18.9)	39.9
Ending balance	852.9	789
Containers | Accumulated depreciation
Reconciliation of changes in property, plant and equipment [abstract]
Beginning balance	(272.5)	(163)
Changes in property, plant and equipment [abstract]
Depreciation	(116.3)	(97.5)
Disposals	(26.9)	(0.8)
Impairment	0	0
Changes in foreign exchange	7.7	(12.8)
Ending balance	(354.2)	(272.5)
Right-of-use assets
Reconciliation of changes in right-of-use assets [roll forward]
Beginning balance	295.1
Changes in right-of-use assets [abstract]
Ending balance	338.1	295.1
Right-of-use assets | Cost
Changes in property, plant and equipment [abstract]
Adjustments for asset retirement obligations		0
Reconciliation of changes in right-of-use assets [roll forward]
Beginning balance	457	348.7
Changes in right-of-use assets [abstract]
Additions	101.5	104.2
Acquisitions via business combinations	29.7	19.4
Adjustments for prior year acquisitions	0	1.5
Adjustments for asset retirement obligations	0
Disposals	(21.3)	(17.9)
Transfers	(1.7)	(4.4)
Changes in foreign exchange	(3)	5.5
Ending balance	562.2	457
Right-of-use assets | Accumulated depreciation
Changes in property, plant and equipment [abstract]
Impairment	0	0
Reconciliation of changes in right-of-use assets [roll forward]
Beginning balance	(161.9)	(94.2)
Changes in right-of-use assets [abstract]
Depreciation	74.8	73
Disposals	(11.5)	(7.2)
Changes in foreign exchange	(1.1)	1.9
Ending balance	$ (224.1)	$ (161.9)

GOODWILL AND INTANGIBLE ASSET_2

GOODWILL AND INTANGIBLE ASSETS - Rollforward (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	$ 11,427.4
Amortization	485.3	$ 516.8
Intangible assets and goodwill at end of period	10,946.8	11,427.4
Goodwill
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	8,182.4
Intangible assets and goodwill at end of period	7,890.5	8,182.4
Indefinite Life C of A
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	839.7
Intangible assets and goodwill at end of period	861	839.7
Customer lists and municipal contracts
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	2,065.2
Intangible assets and goodwill at end of period	1,914.6	2,065.2
Trade name, definite life C of A and other licenses
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	75.5
Intangible assets and goodwill at end of period	104.8	75.5
Non-compete agreements
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	264.6
Intangible assets and goodwill at end of period	175.9	264.6
Cost
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	13,287.1	12,164.2
Acquisitions via business combinations	983.1	1,008.7
Adjustments for prior year acquisitions	(20.2)	(115.5)
Other	14.4	13.7
Disposals	(981.1)	(257)
Changes in foreign exchange	(193.4)	473
Intangible assets and goodwill at end of period	13,089.9	13,287.1
Cost | Goodwill
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	8,182.4	7,501.1
Acquisitions via business combinations	529.8	526.4
Adjustments for prior year acquisitions	(38.5)	14.6
Other	0	0
Disposals	(650.2)	(188.5)
Changes in foreign exchange	(133)	328.8
Intangible assets and goodwill at end of period	7,890.5	8,182.4
Cost | Indefinite Life C of A
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	839.7	811.9
Acquisitions via business combinations	32.8	26.2
Adjustments for prior year acquisitions	0	0
Other	0	0.3
Disposals	(9.7)	(2.8)
Changes in foreign exchange	(1.8)	4.1
Intangible assets and goodwill at end of period	861	839.7
Cost | Customer lists and municipal contracts
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	3,592.7	3,219.7
Acquisitions via business combinations	349.5	375.7
Adjustments for prior year acquisitions	17.2	(99.2)
Other	14.4	12.9
Disposals	(254.2)	(22.6)
Changes in foreign exchange	(45.5)	106.2
Intangible assets and goodwill at end of period	3,674.1	3,592.7
Cost | Trade name, definite life C of A and other licenses
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	108.1	81.5
Acquisitions via business combinations	38.4	0.3
Adjustments for prior year acquisitions	0	20.7
Other	0	0
Disposals	0	0
Changes in foreign exchange	(3)	5.6
Intangible assets and goodwill at end of period	143.5	108.1
Cost | Non-compete agreements
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	564.2	550
Acquisitions via business combinations	32.6	80.1
Adjustments for prior year acquisitions	1.1	(51.6)
Other	0	0.5
Disposals	(67)	(43.1)
Changes in foreign exchange	(10.1)	28.3
Intangible assets and goodwill at end of period	520.8	564.2
Accumulated depreciation
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	(1,859.7)	(1,333.1)
Amortization	485.3	516.8
Disposals	(177.8)	(38.5)
Changes in foreign exchange	(24.1)	48.3
Intangible assets and goodwill at end of period	(2,143.1)	(1,859.7)
Accumulated depreciation | Goodwill
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	0	0
Amortization	0	0
Disposals	0	0
Changes in foreign exchange	0	0
Intangible assets and goodwill at end of period	0	0
Accumulated depreciation | Indefinite Life C of A
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	0	0
Amortization	0	0
Disposals	0	0
Changes in foreign exchange	0	0
Intangible assets and goodwill at end of period	0	0
Accumulated depreciation | Customer lists and municipal contracts
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	(1,527.5)	(1,101.4)
Amortization	385.9	403.2
Disposals	(136.1)	(12.9)
Changes in foreign exchange	(17.8)	35.8
Intangible assets and goodwill at end of period	(1,759.5)	(1,527.5)
Accumulated depreciation | Trade name, definite life C of A and other licenses
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	(32.6)	(21)
Amortization	6.9	9.8
Disposals	0	0
Changes in foreign exchange	(0.8)	1.8
Intangible assets and goodwill at end of period	(38.7)	(32.6)
Accumulated depreciation | Non-compete agreements
Disclosure of reconciliation of changes in intangible assets and goodwill [abstract]
Intangible assets and goodwill at beginning of period	(299.6)	(210.7)
Amortization	92.5	103.8
Disposals	(41.7)	(25.6)
Changes in foreign exchange	(5.5)	10.7
Intangible assets and goodwill at end of period	$ (344.9)	$ (299.6)

GOODWILL AND INTANGIBLE ASSET_3

GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangible assets and goodwill	$ 10,946.8	$ 11,427.4
Revenue growth rate	6.50%
Accumulated impairment
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Intangible assets and goodwill	$ 0	$ 0
Bottom of range
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Discount rate	7.70%	7.20%
Top of range
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]
Discount rate	8.60%	9.80%
Terminal growth rate	2.20%

ACCOUNTS PAYABLE AND ACCRUED _3

ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Details) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES
Accounts payable	$ 711	$ 656.7
Accrued liabilities	529.8	426.9
Accrued interest	89.3	88.8
Accrued payroll and benefits	141.2	137.2
Deferred revenue	207.8	248.1
Accounts payable and accrued liabilities	$ 1,679.1	$ 1,557.7

LANDFILL CLOSURE AND POST-CLO_3

LANDFILL CLOSURE AND POST-CLOSURE OBLIGATIONS - Narrative (Details) $ in Millions	Dec. 31, 2023 CAD ($)	Dec. 31, 2022 CAD ($)
Disclosure of detailed information about property, plant and equipment
Future landfill post-closure assets	$ 28.3	$ 26.1
Landfill closure and post-closure obligations
Disclosure of detailed information about property, plant and equipment
Depreciation of property and equipment (inclusive of infrastructure and depreciation difference between risk free discount rate considered for ARO)	$ 4.4	$ 7.8
Discount rate | CANADA | Landfill closure and post-closure obligations
Disclosure of detailed information about property, plant and equipment
Significant unobservable input, liabilities	3.02	3.28
Discount rate | UNITED STATES | Landfill closure and post-closure obligations
Disclosure of detailed information about property, plant and equipment
Significant unobservable input, liabilities	4.03	3.97
Inflation rate | CANADA | Landfill closure and post-closure obligations
Disclosure of detailed information about property, plant and equipment
Significant unobservable input, liabilities	2.60	2.38
Inflation rate | UNITED STATES | Landfill closure and post-closure obligations
Disclosure of detailed information about property, plant and equipment
Significant unobservable input, liabilities	2.82	2.63

LANDFILL CLOSURE AND POST-CLO_4

LANDFILL CLOSURE AND POST-CLOSURE OBLIGATIONS - Obligation Maturities (Details) - Landfill closure and post-closure obligations - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of detailed information about property, plant and equipment
Landfill closure and post-closure obligations	$ 952.2	$ 847.2	$ 880.6
Less than 1 year
Disclosure of detailed information about property, plant and equipment
Landfill closure and post-closure obligations	56.2
Between 1-2 years
Disclosure of detailed information about property, plant and equipment
Landfill closure and post-closure obligations	121.3
Between 2-5 years
Disclosure of detailed information about property, plant and equipment
Landfill closure and post-closure obligations	188.6
Over 5 years
Disclosure of detailed information about property, plant and equipment
Landfill closure and post-closure obligations	$ 586.1

LANDFILL CLOSURE AND POST-CLO_5

LANDFILL CLOSURE AND POST-CLOSURE OBLIGATIONS - Changes in Period (Details) - Landfill closure and post-closure obligations - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Reconciliation of changes in other provisions [abstract]
Beginning balance	$ 847.2	$ 880.6
Acquisitions via business combinations	18.3	34.9
Adjustment related to prior year acquisitions	0	(5.3)
Disposals	(15)	(16.4)
Provisions	94.9	92.1
Adjustment for discount rates	22.5	(183.1)
Accretion	34.4	20.1
Expenditures	(32.5)	(27.5)
Changes in foreign exchange	(17.6)	51.8
Ending balance	952.2	847.2
Less: Current portion of landfill closure and post-closure obligations	(56.2)	(30.8)
Non-current portion of landfill closure and post-closure obligations	$ 896	$ 816.4

LONG-TERM DEBT - Summary of Deb

LONG-TERM DEBT - Summary of Debt (Details) $ in Millions, $ in Millions	Dec. 31, 2023 CAD ($)	Dec. 31, 2023 USD ($)	Dec. 29, 2023 CAD ($)	Dec. 29, 2023 USD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2021 CAD ($)	Jun. 08, 2021
Disclosure of detailed information about borrowings [line items]
Long-term debt	$ 8,836.9				$ 9,266.8	$ 8,001.8
Deferred finance costs	(79)				(59.6)
Less: Current portion of long-term debt	9.7				17.9
Less: Derivative asset	(20)				(58.3)
Non-current portion of long-term debt	8,827.2				9,248.9
Total long-term debt, net of derivative asset	8,816.9				9,208.5
Revolving Credit Facility
Disclosure of detailed information about borrowings [line items]
Long-term debt			$ 1,205	$ 75
8.500% USD senior unsecured notes, ("8.500% 2027 Notes")
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate							8.50%
Cost
Disclosure of detailed information about borrowings [line items]
Long-term debt	8,834.6				9,252
Cost | Revolving Credit Facility
Disclosure of detailed information about borrowings [line items]
Long-term debt	184.9				771.8
Cost | Loan A Term Facility
Disclosure of detailed information about borrowings [line items]
Long-term debt	0				500
Cost | Loan B Term Facility
Disclosure of detailed information about borrowings [line items]
Long-term debt	$ 961.8				$ 1,742.7
Cost | 4.250% USD senior secured notes ("4.250% 2025 Secured Notes")
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	4.25%	4.25%			4.25%
Long-term debt	$ 661.3				$ 677.2
Cost | 3.750% USD senior secured notes ("3.750%% 2025 Secured Notes")
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	3.75%	3.75%			3.75%
Long-term debt	$ 992				$ 1,015.8
Cost | 5.125% USD senior secured notes ("5.125% 2026 Secured Notes")
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	5.125%	5.125%			5.125%
Long-term debt	$ 661.3				$ 677.2
Cost | 3.500% USD senior secured notes ("3.500% 2028 Secured Notes")
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	3.50%	3.50%			3.50%
Long-term debt	$ 992				$ 1,015.8
Cost | 6.750% USD senior secured notes ("6.750% 2031 Secured Notes")
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	6.75%	6.75%			6.75%
Long-term debt	$ 1,322.6				$ 0
Cost | 4.000% USD senior notes ("4.000% 2028 Notes")
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	4%	4%			4%
Long-term debt	$ 992				$ 1,015.8
Cost | 4.000% 2028 Notes, Initial Notes
Disclosure of detailed information about borrowings [line items]
Long-term debt		$ 500
Cost | 4.000% 2028 Notes, Additional Notes
Disclosure of detailed information about borrowings [line items]
Long-term debt		$ 250
Cost | 4.750% 2029 Notes Effective June 8, 2021
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	4.75%	4.75%			4.75%
Long-term debt	$ 992				$ 1,015.8
Cost | 4.375% USD senior notes ("4.375% 2029 Notes")
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	4.375%	4.375%			4.375%
Long-term debt	$ 727.4				$ 744.9
Cost | Other
Disclosure of detailed information about borrowings [line items]
Long-term debt	347.3				75
Discount
Disclosure of detailed information about borrowings [line items]
Long-term debt	(9.6)				(5.5)
Derivative liability
Disclosure of detailed information about borrowings [line items]
Long-term debt	$ 90.9				$ 79.9

LONG-TERM DEBT - Narrative (Det

LONG-TERM DEBT - Narrative (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2023 CAD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2023 CAD ($)	Dec. 29, 2023 USD ($)	Dec. 29, 2023 CAD ($)	Dec. 07, 2023 CAD ($)	Dec. 31, 2021 CAD ($)	Jun. 08, 2021 USD ($)
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 9,266.8	$ 8,836.9				$ 8,001.8
Issuance of long-term debt		$ 4,972.3	1,656.4
Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			9,252	$ 8,834.6
BSBY rate | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis	1.50%			1.50%
BSBY rate | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis	3.50%			3.50%
SOFR | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis	2%			2%
SOFR | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowings, adjustment to interest rate basis	3.25%			3.25%
Floating | LIBOR | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	1.50%			1.50%
Floating | LIBOR | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	2.25%			2.25%
Floating | Prime Rate | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	0.50%			0.50%
Floating | Prime Rate | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	1.25%			1.25%
Revolving Credit Facility
Disclosure of detailed information about borrowings [line items]
Borrowings					$ 75	$ 1,205
Revolving Credit Facility | Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			771.8	$ 184.9
Revolving Credit Facility | Minimum
Disclosure of detailed information about borrowings [line items]
Interest coverage ratio	3			3
Revolving Credit Facility | Maximum
Disclosure of detailed information about borrowings [line items]
Total net funded debt to adjusted EBITDA ratio	5.75			5.75
Revolving Credit Facility | Four complete fiscal quarters | Maximum
Disclosure of detailed information about borrowings [line items]
Total net funded debt to adjusted EBITDA ratio	6			6
Term Loan A Faacility
Disclosure of detailed information about borrowings [line items]
Borrowings							$ 775
Term Loan B Facility | Floating | LIBOR | Minimum
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	0.50%			0.50%
Term Loan B Facility | Floating | LIBOR | Maximum
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	2.50%			2.50%
Term Loan B Facility | Floating | Prime Rate
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate	1.50%			1.50%
8.500% USD senior unsecured notes, ("8.500% 2027 Notes")
Disclosure of detailed information about borrowings [line items]
Borrowings, interest rate									8.50%
8.500% USD senior unsecured notes, ("8.500% 2027 Notes") | Currency risk
Disclosure of detailed information about borrowings [line items]
Notional amount per note									$ 348
Average rate of hedging instrument									8.828%
4.250% USD senior secured notes ("4.250% 2025 Secured Notes") | Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 677.2	$ 661.3
Borrowings, interest rate	4.25%		4.25%	4.25%
3.750% USD senior secured notes ("3.750%% 2025 Secured Notes") | Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 1,015.8	$ 992
Borrowings, interest rate	3.75%		3.75%	3.75%
5.125% USD senior secured notes ("5.125% 2026 Secured Notes") | Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 677.2	$ 661.3
Borrowings, interest rate	5.125%		5.125%	5.125%
3.500% USD senior secured notes ("3.500% 2028 Secured Notes") | Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 1,015.8	$ 992
Borrowings, interest rate	3.50%		3.50%	3.50%
6.750% USD senior secured notes ("6.750% 2031 Secured Notes") | Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 0	$ 1,322.6
Borrowings, interest rate	6.75%		6.75%	6.75%
4.000% USD senior notes ("4.000% 2028 Notes") | Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 1,015.8	$ 992
Borrowings, interest rate	4%		4%	4%
4.750% 2029 Notes Effective June 8, 2021 | Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 1,015.8	$ 992
Borrowings, interest rate	4.75%		4.75%	4.75%
4.375% USD senior notes ("4.375% 2029 Notes") | Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 744.9	$ 727.4
Borrowings, interest rate	4.375%		4.375%	4.375%
Other | Cost
Disclosure of detailed information about borrowings [line items]
Borrowings			$ 75	$ 347.3
Promissory notes
Disclosure of detailed information about borrowings [line items]
Borrowings	$ 50
Borrowings, interest rate	5%			5%
Term loan, maturing September 21, 2025
Disclosure of detailed information about borrowings [line items]
Borrowings	$ 13
Issuance of long-term debt	13
Revolving credit facility, maturing September 21, 2025
Disclosure of detailed information about borrowings [line items]
Borrowings	15
Issuance of long-term debt		$ 0
Term loan, maturing August 31, 2028
Disclosure of detailed information about borrowings [line items]
Borrowings	170
Issuance of long-term debt	170
Revolving credit facility, maturing August 31, 2028
Disclosure of detailed information about borrowings [line items]
Borrowings	100
Issuance of long-term debt	$ 29.3

LONG-TERM DEBT - Changes in Lon

LONG-TERM DEBT - Changes in Long-Term Debt (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Borrowings [Roll Forward]
Balance, beginning of period	$ 9,266.8	$ 8,001.8
Cash flows
Issuance of long-term debt	4,972.3	1,656.4
Repayment of long-term debt	(5,365.1)	(904.5)
Payment of financing costs	(38.2)	(2.7)
Long-term debt via business combinations	182.5	73.3
Proceeds from termination of swap instrument	17.3	0
Non-cash changes
Accrued interest and other non-cash changes	7.4	16
Revaluation of foreign exchange	(217.1)	504.3
Fair value movements on cash flow hedges	11	(77.8)
Balance, end of period	$ 8,836.9	$ 9,266.8

LONG-TERM DEBT - Maturity (Deta

LONG-TERM DEBT - Maturity (Details) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of detailed information about borrowings [line items]
Borrowings	$ 8,836.9	$ 9,266.8	$ 8,001.8
Cost
Disclosure of detailed information about borrowings [line items]
Borrowings	8,834.6	$ 9,252
Cost | 2024
Disclosure of detailed information about borrowings [line items]
Borrowings	9.7
Cost | 2025
Disclosure of detailed information about borrowings [line items]
Borrowings	1,680.6
Cost | 2026
Disclosure of detailed information about borrowings [line items]
Borrowings	855.8
Cost | 2027
Disclosure of detailed information about borrowings [line items]
Borrowings	999
Cost | 2028
Disclosure of detailed information about borrowings [line items]
Borrowings	2,247.5
Cost | Thereafter
Disclosure of detailed information about borrowings [line items]
Borrowings	$ 3,042

INTEREST AND OTHER FINANCE CO_3

INTEREST AND OTHER FINANCE COSTS (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
INTEREST AND OTHER FINANCE COSTS
Interest	$ 532.7	$ 427.1
Termination of hedged arrangements	8.7
Amortization of deferred financing costs	18.6	13.8
Accretion of landfill closure and post-closure obligations	34.4	20.1
Other finance costs	32.8	28.3
Interest and other finance costs	$ 627.2	$ 489.3

LEASE OBLIGATIONS - Narrative (

LEASE OBLIGATIONS - Narrative (Details) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
LEASE OBLIGATIONS
Secured lease obligations	$ 107.1	$ 120.4

LEASE OBLIGATIONS - Lease Infor

LEASE OBLIGATIONS - Lease Information (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
LEASE OBLIGATIONS
Lease obligations	$ 610.4	$ 480.1
Less: Interest	167.4	101.3
Lease obligations	443	378.8
Less: Current portion of lease obligations	59.6	51.5
Noncurrent portion of lease obligations	383.4	327.3
Interest expense in connection with lease obligations	$ 23	$ 15.3

LEASE OBLIGATIONS - Future Mini

LEASE OBLIGATIONS - Future Minimum Lease Payments (Details) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure of maturity analysis of operating lease payments [line items]
Lease obligations	$ 610.4	$ 480.1
2024
Disclosure of maturity analysis of operating lease payments [line items]
Lease obligations	85.5
2025
Disclosure of maturity analysis of operating lease payments [line items]
Lease obligations	75
2026
Disclosure of maturity analysis of operating lease payments [line items]
Lease obligations	142
2027
Disclosure of maturity analysis of operating lease payments [line items]
Lease obligations	38
2028
Disclosure of maturity analysis of operating lease payments [line items]
Lease obligations	33.3
Thereafter
Disclosure of maturity analysis of operating lease payments [line items]
Lease obligations	$ 236.6

TANGIBLE EQUITY UNITS - Narrati

TANGIBLE EQUITY UNITS - Narrative (Details) $ / shares in Units, $ / shares in Units, $ in Millions, $ in Millions			12 Months Ended
	Mar. 15, 2023 $ / shares	Mar. 05, 2021 item	Dec. 31, 2023 CAD ($) shares	Dec. 31, 2022 CAD ($) shares	Mar. 05, 2020 CAD ($)	Mar. 05, 2020 USD ($) $ / shares
TANGIBLE EQUITY UNITS
TEU offering (in shares) | item		15,500,000
TEUs, rate					6%	6%
Voting shares per purchase contract | $ / shares	$ 2.1940
Outstanding purchase contracts | shares				11,698,543
Gross proceeds					$ 1,040.7	$ 775
TEUs, stated amount (in usd per share) | $ / shares						$ 50
Minimum subordinate voting share conversion of the TEUs (in shares) | shares			0	25,665,433
Mark-to-market loss on Purchase Contracts | $			$ (104.3)	$ 266.8

TANGIBLE EQUITY UNITS - Carryin

TANGIBLE EQUITY UNITS - Carrying Value of TEUs (Details) - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
TANGIBLE EQUITY UNITS
Amortizing Notes		$ 15.5
Purchase Contracts		1,009.4
Net proceeds on issuance		1,024.9
Less: Current portion of TEU	$ 0	(1,024.9)
Tangible equity units	$ 0	$ 0

INCOME TAXES - Reconciliation (

INCOME TAXES - Reconciliation (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
INCOME TAXES
Income (loss) before income taxes	$ 192.1	$ (359.3)
Income tax expenses (recovery) at the combined basic federal and provincial tax rate (26.5% in 2023; and 26.5% in 2022)	50.9	(95.2)
Decrease (increase) resulting from:
Permanent differences	124.6	(87)
Variance between combined Canadian tax rate and the tax rate applicable to U.S. earnings	(0.7)	3.7
(Recognition) de-recognition of deferred income tax assets	(15.8)	1.2
Other	0.9	1.2
Income tax expense (recovery)	$ 159.9	$ (176.1)
Applicable tax rate	26.50%	26.50%

INCOME TAXES - Components of De

INCOME TAXES - Components of Deferred Income Tax Assets and Liabilities (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Deferred income tax assets and liabilities
Balance at the beginning	$ 582.6
Balance at the end	534	$ 582.6
Non-capital loss carry forwards
Deferred income tax assets and liabilities
Balance at the beginning	464.7	446.8
Discontinued operations		(13.8)
Acquisitions via business combinations		5.7
Foreign exchange	(2.7)	11
Recognized in net loss	(5.7)	15
Balance at the end	456.3	464.7
Landfill closures and post-closure obligations
Deferred income tax assets and liabilities
Balance at the beginning	205	178.1
Acquisitions via business combinations		0.9
Foreign exchange	(4.1)	9.8
Recognized in net loss	13.8	16.2
Balance at the end	214.7	205
Accrued liabilities
Deferred income tax assets and liabilities
Balance at the beginning	3.4	1.2
Acquisitions via business combinations		(0.3)
Foreign exchange	(0.1)	1.2
Recognized in net loss	1	1.3
Balance at the end	4.3	3.4
Other
Deferred income tax assets and liabilities
Balance at the beginning	194.7	134.2
Discontinued operations		19.2
Acquisitions via business combinations	11.9	6.1
Foreign exchange	(1)	(2)
Recognized in net loss	(23)	37.2
Recognized in other comprehensive loss	(0.4)
Balance at the end	182.2	194.7
Deferred income tax assets
Deferred income tax assets and liabilities
Balance at the beginning	867.8	760.3
Discontinued operations		5.4
Acquisitions via business combinations	11.9	12.4
Foreign exchange	(7.9)	20
Recognized in net loss	(13.9)	69.7
Recognized in other comprehensive loss	(0.4)
Balance at the end	857.5	867.8
Property and equipment
Deferred income tax assets and liabilities
Balance at the beginning	929.9	774.9
Discontinued operations		(13.5)
Acquisitions via business combinations	11.8	62.6
Foreign exchange	(16.9)	60
Recognized in net loss	(85.8)	45.9
Balance at the end	839	929.9
Intangible assets
Deferred income tax assets and liabilities
Balance at the beginning	592.1	711.7
Discontinued operations		(1.9)
Acquisitions via business combinations	85	3.4
Foreign exchange	(4.5)	(1.7)
Recognized in net loss	(136.6)	(119.4)
Balance at the end	536	592.1
Cash flow hedges
Deferred income tax assets and liabilities
Balance at the beginning	(15.8)	5.8
Recognized in net loss	0.4
Recognized in other comprehensive loss	9.8	(21.6)
Balance at the end	(5.6)	(15.8)
Other
Deferred income tax assets and liabilities
Balance at the beginning	(55.8)	(8.2)
Discontinued operations		(3.7)
Acquisitions via business combinations	3.3	(2)
Foreign exchange	(1.2)	(4.6)
Recognized in net loss	11	(37.3)
Balance at the end	(42.7)	(55.8)
Deferred income tax liabilities
Deferred income tax assets and liabilities
Balance at the beginning	1,450.4	1,484.2
Discontinued operations		(19.1)
Acquisitions via business combinations	100.1	64
Foreign exchange	(22.6)	53.7
Recognized in net loss	(211)	(110.8)
Recognized in other comprehensive loss	9.8	(21.6)
Balance at the end	$ 1,326.7	$ 1,450.4

INCOME TAXES - Narrative (Detai

INCOME TAXES - Narrative (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
INCOME TAXES
Period adjustments to adjust previously reported purchase price allocations	$ 4.7
Non-capital loss carry forwards	$ 1,716	$ 1,871.6

LOSS PER SHARE (Details)

LOSS PER SHARE (Details) - CAD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
LOSS PER SHARE
Net income (loss) attributable to GFL Environmental Inc.	$ 45.4	$ (311.8)
Net loss from discontinued operations		(127.9)
Amounts attributable to preferred shareholders	92.2	83
Adjusted net loss from continuing operations	$ (46.8)	$ (266.9)
Weighted and diluted weighted average number of shares outstanding	369,656,237	367,170,911
Basic and diluted loss per share
Basic loss per share continuing operations	$ (0.13)	$ (0.73)
Diluted loss per share continuing operations	(0.13)	(0.73)
Basic loss per share discontinued operations	0	(0.35)
Diluted loss per share discontinued operations		(0.35)
Total operations basic	(0.13)	(1.08)
Total operations diluted	$ (0.13)	$ (1.08)
Minimum subordinate voting share conversion of the TEUs (in shares)	0	25,665,433

REVENUE (Details)

REVENUE (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure of disaggregation of revenue from contracts with customers
Revenue	$ 7,515.5	$ 6,761.3
Intercompany revenue
Disclosure of disaggregation of revenue from contracts with customers
Revenue	(946.5)	(803.1)
Solid Waste
Disclosure of disaggregation of revenue from contracts with customers
Revenue	6,841.4	6,221.2
Solid Waste | Total collection
Disclosure of disaggregation of revenue from contracts with customers
Revenue	4,420.2	3,950.1
Solid Waste | Landfills
Disclosure of disaggregation of revenue from contracts with customers
Revenue	940.1	837.7
Solid Waste | Transfer
Disclosure of disaggregation of revenue from contracts with customers
Revenue	753.7	671.8
Solid Waste | Material recovery
Disclosure of disaggregation of revenue from contracts with customers
Revenue	322.5	346.3
Solid Waste | Other
Disclosure of disaggregation of revenue from contracts with customers
Revenue	404.9	415.3
Solid Waste | Residential | Total collection
Disclosure of disaggregation of revenue from contracts with customers
Revenue	1,538.4	1,488.8
Solid Waste | Commercial/industrial | Total collection
Disclosure of disaggregation of revenue from contracts with customers
Revenue	2,881.8	2,461.3
Environmental Services | Gross Revenue
Disclosure of disaggregation of revenue from contracts with customers
Revenue	$ 1,620.6	$ 1,343.2

OPERATING SEGMENTS - Revenue by

OPERATING SEGMENTS - Revenue by Segment (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure of operating segments [line items]
Revenue	$ 7,515.5	$ 6,761.3
Adjusted EBITDA	2,003.7	1,720.8
Solid Waste
Disclosure of operating segments [line items]
Revenue	6,052.6	5,512.4
Adjusted EBITDA	1,865.2	1,601
Solid Waste | Canada
Disclosure of operating segments [line items]
Revenue	1,819.2	1,678.2
Adjusted EBITDA	499.3	451.5
Solid Waste | USA
Disclosure of operating segments [line items]
Revenue	4,233.4	3,834.2
Adjusted EBITDA	1,365.9	1,149.5
Environmental Services
Disclosure of operating segments [line items]
Revenue	1,462.9	1,248.9
Adjusted EBITDA	382.8	307.4
Gross Revenue
Disclosure of operating segments [line items]
Revenue	8,462	7,564.4
Gross Revenue | Solid Waste
Disclosure of operating segments [line items]
Revenue	6,841.4	6,221.2
Gross Revenue | Solid Waste | Canada
Disclosure of operating segments [line items]
Revenue	2,085	1,926.5
Gross Revenue | Solid Waste | USA
Disclosure of operating segments [line items]
Revenue	4,756.4	4,294.7
Gross Revenue | Environmental Services
Disclosure of operating segments [line items]
Revenue	1,620.6	1,343.2
Intercompany revenue
Disclosure of operating segments [line items]
Revenue	(946.5)	(803.1)
Intercompany revenue | Solid Waste
Disclosure of operating segments [line items]
Revenue	(788.8)	(708.8)
Intercompany revenue | Solid Waste | Canada
Disclosure of operating segments [line items]
Revenue	(265.8)	(248.3)
Intercompany revenue | Solid Waste | USA
Disclosure of operating segments [line items]
Revenue	(523)	(460.5)
Intercompany revenue | Environmental Services
Disclosure of operating segments [line items]
Revenue	(157.7)	(94.3)
Corporate
Disclosure of operating segments [line items]
Revenue	0	0
Adjusted EBITDA	$ (244.3)	$ (187.6)

OPERATING SEGMENTS - Reconcilia

OPERATING SEGMENTS - Reconciliation of EBITDA to Net Loss (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure of reclassifications or changes in presentation [line items]
Net income (loss) from continuing operations	$ 32.2	$ (183.2)
Depreciation of property and equipment	1,004.4	1,008.7
Amortization of intangible assets	485.3	516.8
Interest and other finance costs	627.2	489.3
Income tax expense (recovery)	159.9	(176.1)
(Gain) loss on foreign exchange	(72.9)	217.7
(Gain) loss on sale of property and equipment	(13.1)	4.7
Mark-to-market loss (gain) on Purchase Contracts	104.3	(266.8)
Share of net loss (income) of investments accounted for using the equity method	61.6	(20.7)
Share-based payments	124.8	55.1
Gain on divestiture	(580.5)	(4.9)
Other	23.2	(7.2)
Adjusted EBITDA	2,003.7	1,720.8
Representation To Exclude Results Of GFL Infrastructure [Member]
Disclosure of reclassifications or changes in presentation [line items]
Net income (loss) from continuing operations	32.2	(183.2)
Depreciation of property and equipment	1,004.4	1,003.9
Amortization of intangible assets	485.3	515.6
Interest and other finance costs	627.2	489.3
Income tax expense (recovery)	159.9	(176.1)
(Gain) loss on foreign exchange	(72.9)	217.7
(Gain) loss on sale of property and equipment	(13.1)	4.7
Mark-to-market loss (gain) on Purchase Contracts	104.3	(266.8)
Share of net loss (income) of investments accounted for using the equity method	61.6	(20.7)
Share-based payments	124.8	53.3
Gain on divestiture	(580.5)	(4.9)
Transaction costs	78.4	55
Acquisition, rebranding and other integration costs	15.3	25.8
Other	(23.2)	7.2
Adjusted EBITDA	$ 2,003.7	$ 1,720.8

OPERATING SEGMENTS - Geographic

OPERATING SEGMENTS - Geographical Information (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure of geographical areas [line items]
Revenue	$ 7,515.5	$ 6,761.3
Non-current assets	18,394.2	18,384.5
Canada
Disclosure of geographical areas [line items]
Revenue	2,946.6	2,676.9
Non-current assets	6,577	6,236.8
USA
Disclosure of geographical areas [line items]
Revenue	4,568.9	4,084.4
Non-current assets	$ 11,817.2	$ 12,147.7

OPERATING SEGMENTS - Goodwill a

OPERATING SEGMENTS - Goodwill and Intangible Assets (Details) - Gross Revenue - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure of operating segments [line items]
Goodwill and indefinite life intangible assets	$ 8,751.5	$ 9,022.1
Solid Waste | Canada
Disclosure of operating segments [line items]
Goodwill and indefinite life intangible assets	2,091.7	2,079.6
Solid Waste | USA
Disclosure of operating segments [line items]
Goodwill and indefinite life intangible assets	5,601.7	6,046.2
Environmental Services
Disclosure of operating segments [line items]
Goodwill and indefinite life intangible assets	$ 1,058.1	$ 896.3

SHAREHOLDER'S CAPITAL - Narrati

SHAREHOLDER'S CAPITAL - Narrative (Details) $ / shares in Units, $ in Millions, $ in Millions			12 Months Ended
	May 10, 2023 shares	May 10, 2022 shares	Dec. 31, 2023 CAD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2023 Vote $ / shares shares	Aug. 16, 2023 USD ($)
Disclosure of classes of share capital [line items]
Maximum number of subordinate voting shares reserved for issuance under share-based payment plans					37,116,287
Weighted average exercise price of vested share options (US$ per share) | $ / shares					$ 28.93
Total grant date fair value of the issued options | $						$ 1.5
Share Options
Disclosure of classes of share capital [line items]
Share-based payments | $			$ 18.8	$ 21.1
RSUs
Disclosure of classes of share capital [line items]
Share-based payments | $			104.7	31.1
DSUs
Disclosure of classes of share capital [line items]
Share-based payments | $			$ 1.3	$ 1.1
Series A perpetual convertible preferred shares
Disclosure of classes of share capital [line items]
Number of shares issued (in shares)					28,571,428
Share conversion					29,852,738
Shares issued, price per share (in USD per share) | $ / shares					$ 25.18
Percent of issued and outstanding shares					7.50%
Percent of outstanding voting rights of shares					5.80%
Preferred shares, liquidation preference rate					7%
Accretion rate for optional redemption amount for a particular quarter in cash					6%
Series B perpetual convertible preferred shares
Disclosure of classes of share capital [line items]
Number of shares issued (in shares)					8,196,721
Share conversion					7,716,995
Shares issued, price per share (in USD per share) | $ / shares					$ 43.90
Percent of issued and outstanding shares					1.90%
Percent of outstanding voting rights of shares					1.50%
Preferred shares, liquidation preference rate					6%
Accretion rate for optional redemption amount for a particular quarter in cash					5%
Subordinate voting shares
Disclosure of classes of share capital [line items]
Vote per share | Vote					1
Maximum subordinate voting shares may be repurchased	17,867,120	16,510,694
Number of shares reserved for issuance as percent			10%
Subordinate voting shares | Patrick Dovigi and/or his affiliates
Disclosure of classes of share capital [line items]
Minimum percent of aggregate of shares issued and outstanding owned					2%
Multiple voting shares
Disclosure of classes of share capital [line items]
Vote per share | Vote					10

SHAREHOLDER'S CAPITAL - Option

SHAREHOLDER'S CAPITAL - Option Activity (Details)		12 Months Ended
	Aug. 16, 2023 shares	Dec. 31, 2023 Option $ / shares
SHAREHOLDER'S CAPITAL
Number of share options outstanding at beginning of period | Option		22,128,582
Number of share options granted	150,000	150,000
Number of share options exercised | Option		0
Number of share options outstanding at end of period | Option		22,278,582
Number of vested share options | Option		8,229,297
Weighted average exercise price of share options outstanding at beginning of period (US$ per share) | $ / shares		$ 32.59
Weighted average exercise price of share options granted (US$ per share) | $ / shares		33
Weighted average exercise price of share options outstanding at end of period (US$ per share) | $ / shares		32.59
Weighted average exercise price of vested share options (US$ per share) | $ / shares		$ 28.93

SHAREHOLDER'S CAPITAL - Share I

SHAREHOLDER'S CAPITAL - Share Issuances and Cancellations (Details)	12 Months Ended
	Dec. 31, 2023 shares
Reconciliation of number of shares outstanding [abstract]
Number of shares outstanding at beginning of period (in shares)	380,211,030
Changes in number of shares outstanding
Converted from RSUs	2,053,782
Converted from TEUs	25,666,465
Cancelled during the year (in shares)	(260)
Number of shares outstanding at end of period (in shares)	407,931,017
Subordinate voting shares
Reconciliation of number of shares outstanding [abstract]
Number of shares outstanding at beginning of period (in shares)	331,629,917
Changes in number of shares outstanding
Converted from RSUs	2,053,782
Converted from TEUs	25,666,465
Cancelled during the year (in shares)	(260)
Number of shares outstanding at end of period (in shares)	359,349,904
Multiple voting shares
Reconciliation of number of shares outstanding [abstract]
Number of shares outstanding at beginning of period (in shares)	11,812,964
Changes in number of shares outstanding
Converted from RSUs	0
Converted from TEUs	0
Cancelled during the year (in shares)	0
Number of shares outstanding at end of period (in shares)	11,812,964
Preferred shares
Reconciliation of number of shares outstanding [abstract]
Number of shares outstanding at beginning of period (in shares)	36,768,149
Changes in number of shares outstanding
Number of shares outstanding at end of period (in shares)	36,768,149

SHAREHOLDER'S CAPITAL - RSU and

SHAREHOLDER'S CAPITAL - RSU and DSU Activity (Details)	12 Months Ended
	Dec. 31, 2023 Option $ / shares shares
RSUs
Disclosure Of Other Equity Instruments In Share-Based Payment Arrangement [Line Items]
Number of other equity instruments outstanding at beginning of period | Option	1,906,769
Number of other equity instruments granted | Option	2,581,840
Number of other equity instruments settled | Option	(2,050,551)
Number of other equity instruments forfeited | Option	(109,416)
Number of other equity instruments cancelled | shares	(16,881)
Number of other equity instruments outstanding at end of period | Option	2,311,761
Number of other equity instruments expected to vest | Option	2,125,322
Weighted average exercise price of other equity instruments outstanding at beginning of period (US$ per share)	$ 28.10
Weighted average exercise price of other equity instruments granted (US$ per share)	31.30
Weighted average exercise price of other equity instruments settled (US$ per share)	29.03
Weighted average exercise price of other equity instruments forfeited (US$ per share)	30.03
Weighted average exercise price of other equity instruments cancelled (US$ per share)	30.25
Weighted average exercise price of other equity instruments outstanding at end of period (US$ per share)	30.74
Weighted average exercise price of other equity instruments vested and expected to vest (US$ per share)	$ 30.63
DSUs
Disclosure Of Other Equity Instruments In Share-Based Payment Arrangement [Line Items]
Number of other equity instruments outstanding at beginning of period | Option	60,960
Number of other equity instruments granted | Option	29,573
Number of other equity instruments outstanding at end of period | Option	90,533
Number of other equity instruments expected to vest | Option	90,533
Weighted average exercise price of other equity instruments outstanding at beginning of period (US$ per share)	$ 28.50
Weighted average exercise price of other equity instruments granted (US$ per share)	33.14
Weighted average exercise price of other equity instruments outstanding at end of period (US$ per share)	30.02
Weighted average exercise price of other equity instruments vested and expected to vest (US$ per share)	$ 30.02

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Effects of changes in
Accounts payable and accrued liabilities	$ (3.4)	$ 160.4
Trade and other receivables, net	57.7	(221)
Prepaid expenses and other assets	(23.3)	(24.9)
Changes in non-cash working capital items	$ 31	$ (85.5)

FINANCIAL INSTRUMENTS AND RIS_3

FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Fair Value of Liabilities (Details) - Financial liabilities at amortised cost - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Amortizing Notes
Disclosure of financial liabilities [line items]
Carrying value		$ 15.5
Financial liabilities, at fair value		15.5
Amortizing Notes | Level 1
Disclosure of financial liabilities [line items]
Financial liabilities, at fair value		15.5
Amortizing Notes | Level 3
Disclosure of financial liabilities [line items]
Financial liabilities, at fair value		0
Notes
Disclosure of financial liabilities [line items]
Carrying value	$ 7,337.4	6,157
Financial liabilities, at fair value	7,087.5	5,568.6
Notes | Level 1
Disclosure of financial liabilities [line items]
Financial liabilities, at fair value	0	0
Notes | Level 2
Disclosure of financial liabilities [line items]
Financial liabilities, at fair value	7,087.5	5,568.6
Notes | Level 3
Disclosure of financial liabilities [line items]
Financial liabilities, at fair value	$ 0	$ 0

FINANCIAL INSTRUMENTS AND RIS_4

FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Trade Receivables Aging (Details) - Trade receivables - CAD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure of provision matrix [line items]
Trade receivable	$ 1,019.1	$ 1,054.4
0-60 days
Disclosure of provision matrix [line items]
Trade receivable	787.8	781.4
61-90 days
Disclosure of provision matrix [line items]
Trade receivable	103.7	107.8
91+ days
Disclosure of provision matrix [line items]
Trade receivable	$ 127.6	$ 165.2

FINANCIAL INSTRUMENTS AND RIS_5

FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Narrative (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 CAD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2021 CAD ($)	Jun. 08, 2021 USD ($)
Disclosure of financial liabilities [line items]
Borrowings	$ 8,836.9	$ 9,266.8	$ 8,001.8
Interest rate risk | Fixed | Financial obligations
Disclosure of financial liabilities [line items]
Concentration percentage	86.50%	67.10%
Interest rate risk | Floating | Financial obligations
Disclosure of financial liabilities [line items]
Concentration percentage	13.50%	32.90%
Reasonably possible change in risk variable, impact on pre-tax earnings	$ 5.7	$ 29.9
Commodity price risk
Disclosure of financial liabilities [line items]
10% decrease in average recycled commodity prices from the average prices, impact on revenues	10.7	14.9
Commodity price risk | Diesel Fuel Commodity Contracts
Disclosure of financial liabilities [line items]
Current derivative financial liabilities	0
Losses on change in fair value of derivatives	0.5
Currency risk
Disclosure of financial liabilities [line items]
$0.01 change in the U.S. dollar to Canadian dollar exchange rate, impact in annual revenue	33.9	31.3
$0.01 change in the U.S. dollar to Canadian dollar exchange rate, impact in adjusted EBITDA	10.2	8.8
Gains on change in fair value of derivatives	28.5	64.9
Cost
Disclosure of financial liabilities [line items]
Borrowings	$ 8,834.6	$ 9,252
8.500% USD senior unsecured notes, ("8.500% 2027 Notes")
Disclosure of financial liabilities [line items]
Borrowings, interest rate				8.50%
8.500% USD senior unsecured notes, ("8.500% 2027 Notes") | Currency risk
Disclosure of financial liabilities [line items]
Average rate of hedging instrument				8.828%
Notional amount per note				$ 348

FINANCIAL INSTRUMENTS AND RIS_6

FINANCIAL INSTRUMENTS AND RISK MANAGEMENT - Schedule of Swaps (Details) - Currency risk - Currency swap $ in Millions	Dec. 31, 2023 USD ($)
4.250% 2025 Secured Notes Effective Apr 29, 2020
Disclosure of detailed information about financial instruments [line items]
Notional amount	$ 500
Fixed-variable interest rate paid	4.805%
Fixed/variable interest rate received	4.25%
Fixed foreign exchange rate paid	1.4198
4.250% 2025 Secured Notes Effective Apr 29, 2020
Disclosure of detailed information about financial instruments [line items]
Notional amount	$ 500
Fixed-variable interest rate paid	5.725%
Fixed/variable interest rate received	5.125%
Fixed foreign exchange rate paid	1.3245
8.500% 2027 Notes Effective Apr 23, 2019 Swap One
Disclosure of detailed information about financial instruments [line items]
Notional amount	$ 48
Fixed-variable interest rate paid	8.399%
Fixed/variable interest rate received	8.50%
Fixed foreign exchange rate paid	1.3355
8.500% 2027 Notes Effective Apr 23, 2019 Swap Two
Disclosure of detailed information about financial instruments [line items]
Notional amount	$ 300
Fixed-variable interest rate paid	8.419%
Fixed/variable interest rate received	8.50%
Fixed foreign exchange rate paid	1.3355
8.500% 2027 Notes Effective Jun 8 2021
Disclosure of detailed information about financial instruments [line items]
Notional amount	$ 348
Fixed-variable interest rate paid	8.50%
Fixed/variable interest rate received	8.828%
Fixed foreign exchange rate paid	1.2026
4.000% 2028 Notes Effective Nov 23, 2020
Disclosure of detailed information about financial instruments [line items]
Notional amount	$ 500
Fixed-variable interest rate paid	4.524%
Fixed/variable interest rate received	4%
Fixed foreign exchange rate paid	1.3112
4.750% 2029 Notes Effective June 8, 2021
Disclosure of detailed information about financial instruments [line items]
Notional amount	$ 350
Fixed-variable interest rate paid	5.317%
Fixed/variable interest rate received	4.75%
Fixed foreign exchange rate paid	1.2026

COMMITMENTS (Details)

COMMITMENTS (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure of contingent liabilities [line items]
Letters of credit amount outstanding	$ 236.1	$ 233
Interest expense on letters of credit	5.1	5
Contingent liability for guarantees
Disclosure of contingent liabilities [line items]
Aggregate contract limit for the bonds	$ 1,681.7	$ 1,560.7

RELATED PARTY TRANSACTIONS (Det

RELATED PARTY TRANSACTIONS (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 CAD ($) item	Dec. 31, 2022 CAD ($)
Disclosure of transactions between related parties [line items]
Due to related party	$ 2.9	$ 8.7
Compensation of key management personnel	$ 100	36.8
Related parties
Disclosure of transactions between related parties [line items]
Lease on number of properties | item	6
Cash outflow for leases	$ 9	5.8
Green Infrastructure Partners Inc
Disclosure of transactions between related parties [line items]
Revenue from related parties	25.8	31.6
Net receivables to related parties	10.9
Net payables to related parties		3.8
Josaud Holdings Inc.
Disclosure of transactions between related parties [line items]
Semi-annual instalments	3.5
Due to related party	0	3.5
Sejosa Holdings Inc.
Disclosure of transactions between related parties [line items]
Semi-annual instalments	2.9
Due to related party	$ 8.7	$ 14.5

EXPENSES BY NATURE (Details)

EXPENSES BY NATURE (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure of attribution of expenses by nature to their function [line items]
Interest and other finance costs	$ 627.2	$ 489.3
Depreciation of property and equipment	1,004.4	1,008.7
Amortization of intangible assets	485.3	516.8
(Gain) loss on foreign exchange	(72.9)	217.7
(Gain) loss on sale of property and equipment	(13.1)	4.7
Gain on divestiture	580.5	4.9
Other	23.2	(7.2)
Total expenses by nature	7,261.8	7,141.3
Representation To Exclude Results Of GFL Infrastructure
Disclosure of attribution of expenses by nature to their function [line items]
Employee benefits	2,302.2	2,011.3
Transfer and disposal costs	1,465.1	1,415.2
Interest and other finance costs	627.2	489.3
Depreciation of property and equipment	1,004.4	1,003.9
Amortization of intangible assets	485.3	515.6
Other expenses	843.9	725.9
Transaction costs	78.4	55
Acquisition, rebranding and other integration costs	15.3	25.8
Maintenance and repairs	525.9	480.9
Fuel costs	374.7	405.4
(Gain) loss on foreign exchange	(72.9)	217.7
Share-based payments	124.8	55.1
(Gain) loss on sale of property and equipment	(13.1)	4.7
Gain on divestiture	(580.5)	(4.9)
Mark-to-market loss (gain) on Purchase Contracts	104.3	(266.8)
Other	(23.2)	7.2
Total expenses by nature	$ 7,261.8	$ 7,141.3

DIVESTITURES (Details)

DIVESTITURES (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Noncurrent Assets Or Disposal Groups Classified As Held For Sale [Line items]
Proceeds from divestitures	$ 1,649.2	$ 341.7
U.S. Solid Waste Business Divestiture
Noncurrent Assets Or Disposal Groups Classified As Held For Sale [Line items]
Proceeds from divestitures	1,649.2
Gain on divestiture	$ 575

DISCONTINUED OPERATIONS (Detail

DISCONTINUED OPERATIONS (Details) $ in Millions	Apr. 25, 2022 CAD ($)
GFL Infrastructure
Disclosure of analysis of single amount of discontinued operations [line items]
Cash consideration	$ 224
GIP
Disclosure of analysis of single amount of discontinued operations [line items]
Non-controlling equity interest acquired	45%

DISCONTINUED OPERATIONS - Post

DISCONTINUED OPERATIONS - Post tax results of discontinued operations (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Disclosure of analysis of single amount of discontinued operations [line items]
Revenue	$ 7,515.5	$ 6,761.3
Expenses	7,261.8	7,141.3
Loss before income taxes	192.1	(359.3)
Net loss	0	(127.9)
Net loss and comprehensive loss from discontinued operations	$ 0	(127.9)
GFL Infrastructure
Disclosure of analysis of single amount of discontinued operations [line items]
Revenue		96.8
Expenses		98.4
Loss before income taxes		(1.6)
Income tax expense		5
Net loss		(6.6)
Impairment		(121.3)
Net loss and comprehensive loss from discontinued operations		$ (127.9)

DISCONTINUED OPERATIONS - Cash

DISCONTINUED OPERATIONS - Cash flow information (Details) - GFL Infrastructure $ in Millions	12 Months Ended
	Dec. 31, 2022 CAD ($)
Disclosure of analysis of single amount of discontinued operations [line items]
Operating cash flows from discontinued operations	$ (35.4)
Investing cash flows from discontinued operations	(7.2)
Financing cash flows from discontinued operations	(1)
Decrease in cash from discontinued operations	$ (43.6)