Contractual Obligations
As discussed in Note 6 Long-term Debt to our condensed consolidated financial statements in Item 1, Part I of this Form 10-Q, the New Senior Secured Credit Facilities replaced the Previous Senior Secured Credit Facilities in June 2021. As of September 30, 2021, long-term debt, including the current portion, was $1.1 billion, of which $3.0 million is estimated to be payable during the three months ended December 31, 2021 and $12.2 million, $15.7 million, $11.5 million, and $11.5 million is estimated to be payable during the years ended December 31, 2022, 2023, 2024, and 2025, respectively, with the remainder due during periods after December 31, 2025. Interest on long-term debt is estimated to be $9.2 million during the three months ended December 31, 2021 and $36.1 million, $35.7 million, $35.3 million, and $34.8 million is estimated for the years ended December 31, 2022, 2023, 2024, and 2025, respectively, with $82.6 million estimated for periods after December 31, 2025. We estimated interest payments through the maturity of our long-term debt by applying the interest rate in effect as of September 30, 2021 (see Note 6 – Long-Term Debt to our condensed consolidated financial statements included in Part I, Item 1 of this Form 10-Q).
As discussed in Note 3 – Inventories Floor Plan Payables to our condensed consolidated financial statements in Item 1, Part I of this Form 10-Q, the maximum allowed amount under the revolving line of credit increased to $70 million on September 30, 2021 per the Floor Plan Facility. As of September 30, 2021, the revolving line of credit borrowed, including the current portion, was $20.9 million, of which $0 million is estimated to be payable during the three months ended December 31, 2021 and $0 million is estimated to be payable for each of the years ended December 31, 2022, 2023, 2024, and 2025. Interest payments on the revolving line of credit is estimated to be $0.1 million during the three months ended December 31, 2021, and $0.5 million is estimated for each of the years ended December 31, 2022, 2023, 2024 and 2025. We estimated interest payments through the maturity of our revolving line of credit applying the interest rate in effect as of September 30, 2021.
As discussed in Note 11 – Income Taxes to our condensed consolidated financial statements in Item 1, Part I of this Form 10-Q, the Tax Receivable Agreement liability increased as a result of redemptions of common units during the period. As of September 30, 2021, the Tax Receivable Agreement liability, including the current portion, was $179.9 million, of which $12.3 million, $11.5 million, $11.8 million, $12.1 million are estimated to be payable during the years ended December 31, 2022, 2023, 2024, and 2025, respectively, with the remainder estimated to be payable during periods after December 31, 2025.
There were no other material changes in our commitments during the three months ended September 30, 2021 under contractual obligations from those disclosed in our Annual Report outside the course of normal business.
Critical Accounting Policies and Estimates
We prepare our condensed consolidated financial statements in accordance with GAAP, and in doing so, we have to make estimates, assumptions and judgments affecting the reported amounts of assets, liabilities, revenues and expenses, as well as the related disclosure of contingent assets and liabilities. We base our estimates, assumptions and judgments on historical experience and on various other factors we believe to be reasonable under the circumstances. Different assumptions and judgments would change estimates used in the preparation of our condensed consolidated financial statements, which, in turn, could change our results from those reported. We evaluate our critical accounting estimates, assumptions and judgments on an ongoing basis.
There has been no material change in our critical accounting policies from those previously reported and disclosed in our Annual Report.
Recent Accounting Pronouncements
See Note 1 – Summary of Significant Accounting Policies to our condensed consolidated financial statements in Item 1, Part I of this Form 10-Q.