Cash used in operating activities during the three months ended March 31, 2022 was $11.3 million compared to cash provided by operating activities of $22.5 million in the same prior-year period. Net income increased $46.2 million for the three months ended March 31, 2022, compared to the same period of 2021. Net income for the three months ended March 31, 2021 benefited from an $8.6 million gain on the sale of an unutilized property in the Asset-Based segment. Changes in operating assets and liabilities, excluding income taxes, contributed $86.4 million to the changes in cash used in operating activities during the three months ended March 31, 2022, compared to the same period of 2021, primarily due to the higher year-over-year increase in accounts receivable. For the three months ended March 31, 2022, the increase in accounts receivable, which resulted in a reduction in cash flows from operations, was primarily due to the impact of higher business levels, including the addition of the MoLo operations, and timing of collections. Cash used in operating activities also reflected federal and state income tax payments of $27.2 million for the three months ended March 31, 2022, compared to $6.4 million for the same prior-year period.
Financing Arrangements
In first quarter 2022, we borrowed $58.0 million and repaid $20.0 million of borrowings under our Credit Facility, and our outstanding obligation under the facility as of March 31, 2022 was $88.0 million. As of March 31, 2022, we had available borrowing capacity of $162.0 million under the initial maximum credit amount of the Credit Facility. In April 2022, we repaid $38.0 million under our Credit Facility, including $3.0 million of borrowings under our swing line facility, which increased our available borrowing capacity to $200.0 million. As of March 31, 2022, we had $40.0 million available under our accounts receivable securitization program, as reduced for our standby letters of credit issued under the program.
We have financed the purchase of certain revenue equipment, other equipment, and software through promissory note arrangements, including $8.1 million for revenue equipment during the three months ended March 31, 2022. Future payments due under our notes payable totaled $178.0 million, including interest, as of March 31, 2022, for a decrease of $5.3 million from December 31, 2021.
Our financing arrangements, the borrowings and repayments under these agreements, and the scheduled maturities of our long-term debt obligations, are disclosed in Note G to our consolidated financial statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q.
Contractual Obligations
We have purchase obligations, consisting of authorizations to purchase and binding agreements with vendors, relating to revenue equipment used in our Asset-Based and Asset-Light operations, other equipment, facility improvements, software, service contracts, and other items for which amounts were not accrued in the consolidated balance sheet as of March 31, 2022. These purchase obligations totaled $103.1 million as of March 31, 2022, with $99.7 million expected to be paid within the next year, provided that vendors complete their commitments to us. As of March 31, 2022, the amount of our purchase obligations has increased $24.3 million from December 31, 2021, primarily related to real estate projects and technology advancements which are included in our 2022 capital expenditure plan.
ABF Freight System, Inc. and certain other subsidiaries reported in our Asset-Based operating segment contribute to multiemployer health, welfare, and pension plans based generally on the time worked by their contractual employees, as specified in the collective bargaining agreement and other supporting supplemental agreements (see Note H to our consolidated financial statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q).
As of March 31, 2022, contractual obligations for operating lease liabilities, primarily related to our Asset-Based service centers, totaled $224.5 million, including imputed interest, for an increase of $16.4 million from December 31, 2021. The scheduled maturities of our operating lease liabilities as of March 31, 2022 are disclosed in Note F to our consolidated financial statements included in Part I, Item 1 of this Quarterly Report on Form 10-Q. There have been no other material changes in the contractual obligations disclosed in our 2021 Annual Report on Form 10-K during the three months ended March 31, 2022. We have no investments, loans, or any other known contractual arrangements with unconsolidated special-purpose entities, variable interest entities, or financial partnerships and have no outstanding loans with executive officers or directors.