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Is your ERC claim protected? Keep an eye on litigation deadlines

In February 2026, the Internal Revenue Service (IRS) announced that, as of December 31, 2025, it had closed all non-examined Employee Retention Credit (ERC) claims. This development could compel businesses to pursue litigation to secure their ERC refunds. In its announcement, the IRS also noted that approximately 41,000 claims remain under IRS examination or appeal.

The IRS’s announcement brings renewed focus to a risk we have been highlighting for some time: Statutes of limitation can quietly extinguish otherwise valid refund claims. As discussed in our article in Bloomberg on how to litigate and resolve ERC claims, administrative delay does not eliminate judicial deadlines. For taxpayers whose claims have been formally disallowed, Internal Revenue Code Section 6532(a) provides only two years to file a refund suit. A protest to the IRS Independent Office of Appeals (IRS Appeals) does not suspend that deadline. Without filing suit or obtaining a written extension (Form 907), the right to a refund can be permanently lost.

For taxpayers with ERC claims that are pending without action (i.e., those described in the IRS’s announcement), the statute of limitations analysis is more complex. Some courts have dismissed taxpayer suits that were filed more than six and a half years from the time the claim arose.[1] Under the logic of these cases, there may be a six-and-a-half-year limit in effect from the date a refund claim is filed – the six months a taxpayer must wait before filing a refund suit plus six years during which the government is susceptible to suit under a general statute of limitations on civil claims against the government (31 U.S.C. § 3702(b)). For ERC claims submitted in 2020, the end of this possibly applicable six-and-a-half-year period is quickly approaching. To the extent a court will apply this limitation, a taxpayer with an ERC refund claim may be barred from suit even without a formal disallowance by the IRS.

The message for businesses is consistent with our earlier guidance: Protecting the right to an ERC refund requires a proactive strategy. Taxpayers must identify which limitations periods apply to their claims, manage calendar critical deadlines, and evaluate whether protective litigation is necessary to preserve their potential refunds. Businesses facing challenged, delayed, or disallowed ERC claims should evaluate their statute posture urgently. Our tax controversy & litigation team continues to advise clients on navigating ERC audits, IRS Appeals proceedings, and refund litigation to ensure procedural missteps do not foreclose recovery.

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[1] See Wagenet v. United States, No. CV 08-01234, 2009 WL 4895363, at *5 (C.D. Cal. Sept. 14, 2009) (dismissing tax refund action as filed outside the six-year statute). See also Bowman Transp., Inc. v. United States, 220 Ct. Cl. 36, 40–41 (1979) (interpreting 28 U.S.C. § 2501 and explaining that “[d]espite the fact that the carrier has only two years from the date on which the refund claim is expressly disallowed or apparently the regular six-year period of limitations contained in 28 U.S.C. § [...]

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IRS roundup: March 3 – March 10, 2026

Check out our summary of significant Internal Revenue Service (IRS) guidance and relevant tax matters for March 3, 2026 – March 10, 2026.

IRS guidance

March 3, 2026: The IRS released Revenue Procedure 2026-15, which provides the inflation-adjusted luxury automobile depreciation limits under Internal Revenue Code (Code) Section 280F for passenger vehicles, including trucks and vans, placed in service in 2026 and the lease inclusion amounts for vehicles first leased in 2026. The guidance includes separate first-year depreciation caps depending on whether bonus depreciation under Section 168(k) applies.

March 4, 2026: The IRS released Revenue Procedure 2026-16, which provides information for individuals who failed to meet Code Section 911(d)(1) requirements for 2025 due to adverse conditions, listing countries and “date of departure on or after” thresholds (e.g., Haiti, Ukraine, and the Democratic Republic of the Congo, among others).

March 5, 2026: The IRS released Notice 2026-4, which requests comments on whether to modify requirements for electronic furnishing of certain payee statements, including for brokers and potentially other furnishers.

The IRS also released its weekly list of written determinations (e.g., Private Letter Rulings, Technical Advice Memorandums, and Chief Counsel Advice).

Recent court decisions

March 2, 2026: The US Tax Court held that a German parent company had zero basis in a $610 million promissory note that was contributed to a partnership after its wholly owned subsidiary elected to be disregarded for US tax purposes. Because the subsidiary’s retroactive “check-the-box” election caused the transaction to be treated as the parent’s contribution of its own note, the Tax Court concluded that the note had no tax basis since a taxpayer incurs no “cost” in issuing its own obligation, resulting in zero basis both in the partnership interest and in the partnership’s basis in the note.




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IRS roundup: February 17 – February 27, 2026

Check out our summary of significant Internal Revenue Service (IRS) guidance and relevant tax matters for February 17, 2026 – February 27, 2026.

February 17, 2026: The IRS released Revenue Ruling 2026-6, which provides the March 2026 applicable federal rates.

February 18, 2026: The IRS released Notice 2026-7, which provides additional interim guidance and updates existing guidance on the application of the corporate alternative minimum tax (CAMT) under Internal Revenue Code (Code) Sections 55, 56A, and 59. The notice modifies previously issued CAMT guidance, particularly Notices 2025‑49 and 2025‑46. It also introduces several new updates to adjusted financial statement income regarding intangibles and repairs under Code Section 197 and changes to domestic research amortization expenses based on changes brought by the One Big Beautiful Bill Act (OBBBA).

February 19, 2026: The IRS released Notice 2026-14, which provides the 24-month average corporate bond segment rates for February 2026, the yield curve and segment rates for single-employer plans, and the 30-year Treasury securities interest rates.

February 20, 2026: The IRS released Notice 2026-16, which provides interim guidance and announces forthcoming proposed regulations addressing the special depreciation allowance for qualified production property under Code Section 168(n), as created by the OBBBA.

The notice provides interim guidance regarding the definitions of “qualified production property” and “qualified production activity,” how to determine the special depreciation allowance for qualified production property, and how and when an election to treat property as qualified production property is made. Qualified production property generally includes nonresidential real property used as an integral part of a qualified production activity, such as manufacturing, chemical production, agricultural production, or refining, that results in the substantial transformation of a qualified product. The notice also explains how the depreciation recapture rules apply to property that ceases to meet the requirements to be qualified production property. Taxpayers may rely on Notice 2026-16 until proposed regulations are issued. Comments on the interim guidance are requested within 60 days.

February 23, 2026: The IRS released Announcement 2026-7, which states that certain portions of final regulations relating to required minimum distributions under Code Section 401(a)(9) will apply for the distribution calendar year that begins no earlier than six months after the date the final regulations are issued in the Federal Register.

February 25, 2026: The IRS released Notice 2026-17, which announces forthcoming proposed regulations under Code Section 987. The notice allows taxpayers to elect the equity and basis pool method for determining taxable income or loss and foreign currency gain or loss with respect to a qualified business unit.

The IRS also released its weekly list of written determinations (e.g., Private Letter Rulings, Technical Advice Memorandums, and Chief Counsel Advice).




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IRS roundup: February 9 – February 17, 2026

Check out our summary of significant Internal Revenue Service (IRS) guidance and relevant tax matters for February 9, 2026 – February 17, 2026.

IRS guidance

February 9, 2026: The IRS issued Revenue Procedure 2026-13, providing discount factors for insurance companies to compute Section 846 discounted unpaid losses and recoverable Section 832 discounted estimated salvage for the 2025 accident year. This revenue procedure also provides discount factors to be used in tax years beginning in 2025 for losses incurred in the 2024 accident year and earlier accident years. Discount factors for tax years prior to 2025 were previously provided in Revenue Procedure 2025-15 and Revenue Procedure 2023-10.

February 12, 2026: The IRS issued Notice 2026-15, describing interim guidance on restrictions for certain energy credits related to the status of, and sourcing from, a prohibited foreign entity (PFE). These restrictions were enacted by Public Law 119- 21, 139 Stat. 72 (July 4, 2025) and provide:

  • Descriptions of rules the US Department of the Treasury (Treasury) and the IRS intend to provide in proposed regulations regarding material assistance from a PFE.
  • Descriptions of the Sections 45X, 45Y, and 48E interim safe harbor guidance for determining a qualified facility’s, energy storage technology’s, or eligible component’s material assistance cost ratio related to determining whether there was material assistance from a PFE.
  • PFE restrictions that the Treasury and the IRS will include in forthcoming proposed regulations.
  • A glossary of defined terms, a request for comments, and guidance on substantiation and taxpayer ability to rely on guidance provided in Sections 3 – 5 of the notice.

February 17, 2026: The IRS released Internal Revenue Bulletin No. 2026-8, which includes Revenue Ruling 2026-5. This revenue ruling provides Section 6621 interest rates for underpayments and overpayments for Q2 2026, as described below:

  • 6% for overpayments generally
  • 5% for overpayments in the case of a corporation, which drops to 3.5% for the portion of a corporate overpayment exceeding $10,000
  • 6% for underpayments generally
  • 8% for large corporate underpayments 

The IRS also released its weekly list of written determinations (e.g., Private Letter Rulings, Technical Advice Memorandums, and Chief Counsel Advice).

Penalty disclosure guidance

February 9, 2026: The IRS released Internal Revenue Bulletin No. 2026-7, which includes Revenue Procedure 2026-12. This revenue procedure specifies when information shown on a return is considered an adequate disclosure for purposes of reducing an understatement of income tax under Section 6662(d) and avoiding a Section 6694(a)’s preparer penalty.

Under Revenue Procedure 2026-12, taxpayers generally “must furnish all required information in accordance with the applicable forms and instructions, and the money amounts entered on these forms must be verifiable.” An amount is verifiable where, “on audit, the taxpayer can prove the origin of the amount (even if that number is not ultimately accepted by the Service) and the taxpayer can show good faith in entering that number on the appli­cable form.” And where an item is being reported does not [...]

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IRS roundup: January 21 – February 9, 2026

Check out our summary of significant Internal Revenue Service (IRS) guidance and relevant tax matters for January 21, 2026 – February 9, 2026.

January 26, 2026: The IRS released Notice 2026-9, which provides a one-year extension to make certain amendments to individual retirement arrangements (IRAs), simplified employee pension arrangements, and savings incentive match plan for employees IRA plans. The new deadline is December 31, 2027. The extension gives the IRS additional time to issue model language for the various changes resulting from compliance with the SECURE 2.0 Act of 2022 and related legislation.

January 27, 2026: The IRS released Fact Sheet 2026-2, which provides updated questions and answers regarding the implementation of Executive Order 14247, Modernizing Payments To and From America’s Bank Account. The executive order advances the transition to fully electronic federal payments both to and from IRS.

January 29, 2026: The IRS announced that it is accepting applications for the Electronic Tax Administration Advisory Committee (ETAAC) through February 28, 2026. The ETAAC provides an organized public forum for discussing electronic tax administration issues, such as prevention of identity theft and refund fraud.

February 2, 2026: The IRS released Internal Revenue Bulletin No. 2026-6, which includes Announcement 2026-3. The announcement provides a copy of the arrangement entered into by the competent authorities of the United States and Spain regarding the implementation of the arbitration process provided for in paragraphs 5 and 6 of Article 26 of the US-Spain income tax treaty and its protocol.

February 2, 2026: The IRS announced that it would continue operations under the current lapse in appropriations until further notice, using funding from the Inflation Reduction Act of 2022 (IRA).

February 3, 2026: The US Department of the Treasury and the IRS issued proposed regulations regarding the clean fuel production credit enacted by the IRA and amended by the One Big Beautiful Bill Act. The new law made important changes to what is often referred to as the 45Z credit. The proposed regulations would provide rules for determining clean fuel production credits. They also would amend three sets of final regulations: the elective payment election regulations and the credit transfer election regulations (to clarify language relating to ownership of clean fuel production facilities) and the federal excise tax registration regulations (to make them clearer and more consistent with the clean fuel production credit registration requirements in these proposed regulations). The proposed regulations would affect domestic producers of clean transportation fuel, taxpayers that may claim a credit for a related producer’s fuel, and excise tax registrants. Comments must be received by April 6, 2026. There is a public hearing that will be held on May 28, 2026, and requests to speak at the public hearing will be accepted until May 26, 2026.

Recent court decisions

January 28, 2026: The US Tax Court issued its opinion in Aventis Inc. v. Commissioner, rejecting Aventis’s attempt to treat [...]

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IRS roundup: December 12, 2025 – January 12, 2026

Check out our summary of significant Internal Revenue Service (IRS) guidance and relevant tax matters for December 12, 2025 – January 12, 2026.

December 12, 2025: The IRS issued Treasury Decision 10042, which modified and clarified the Internal Revenue Code (Code) Section 892 rules. The Treasury Decision contains final regulations regarding the taxation of income earned by foreign governments from investments in the United States. The regulations clarify how to determine when a foreign government is engaged in commercial activity and when an entity qualifies as a controlled commercial entity. These rules apply to foreign governments that earn income from US sources.

December 12, 2025: The IRS issued proposed regulations, which provided additional guidance under Section 892 and focus on:

  • Determining when an acquisition of debt by a foreign government is treated as a commercial activity
  • Determining when a foreign government has effective control of an entity engaged in a commercial activity
  • Clarifying that partnerships, including partnerships wholly owned by a single foreign sovereign, are not controlled entities under Section 892 for US tax purposes.

December 15, 2025: The IRS issued proposed regulations, updating points of contact within the US Department of Justice (DOJ) and the IRS to identify points of contact for matters involving internal revenue laws following a reorganization within the DOJ. The regulations would also update points of contact at the IRS for taxpayers submitting administrative claims for civil damages related to certain unauthorized collection actions or awards of administrative costs in specified administrative proceedings.

December 15, 2025: The IRS withdrew two notices of proposed rulemaking regarding innocent spouse relief.

December 22, 2025: The IRS issued proposed updates, which set forth a clearer, more predictable system for its Voluntary Disclosure Practice and a more streamlined penalty framework. The IRS seeks public comment on the proposed updates by March 22, 2026.

December 29, 2025: The IRS released Internal Revenue Bulletin 2026-1, which includes the following:

  • Revenue Procedure 2026-1, which contains the revised procedures for letter rulings and information letters issued by the different associate chief counsel offices. This revenue procedure also contains the revised procedures for determination letters issued by the Large Business and International Division, the Small Business/Self-Employed Division, the Wage and Investment Division, and the Tax Exempt & Government Entities (TE/GE) Division.
  • Revenue Procedure 2026-2, which explains when and how associate chief counsel offices should provide advice in technical advice memoranda (TAM) as well as taxpayers’ rights when a field office requests a TAM.
  • Revenue Procedure 2026-3, which provides a revised list of Code areas under the jurisdiction of the following associate chief counsel offices:
    • Corporate
    • Financial Institutions and Products
    • Income Tax and Accounting
    • Passthroughs and Special Industries
    • Procedure and Administration
    • Energy, Credits, and Excise Tax
    • Employee Benefits, Exempt Organizations, and Employment Taxes.

These relate to matters in which the IRS will not issue letter rulings [...]

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IRS roundup: December 15 – December 22, 2025

Check out our summary of significant Internal Revenue Service (IRS) guidance and relevant tax matters for December 15, 2025 – December 22, 2025. 

December 15, 2025: The IRS issued Notice 2026-2, providing an update on weighted average interest rates, yield curves, and segment rates. The notice specifically focused on the corporate bond monthly yield curve, corresponding spot segment rates used for purposes of Internal Revenue Code (Code) Section 417(e)(3), and 24-month average segment rates for purposes of Code Section 430(h)(2). Notice 2026-2 also provides the interest rate for 30-year Treasury securities for purposes of Code Section 417(e)(3)(A)(ii)(II), as in effect for plan years beginning before 2008, as well as the 30-year Treasury weighted average rate for purposes of Code Section 431(c)(6)(E)(ii)(I).

December 15, 2025: The IRS issued Revenue Ruling 2026-2, providing various prescribed rates for federal income tax purposes for January 2026. The prescribed rates include:

  • Short-, mid-, and long-term applicable federal rates for certain debt instruments in the Code.
  • Section 42(b)(1) housing credit appropriate percentages.
  • The deemed rate of return for calendar year 2026 transfers made to pooled income funds, as described in Section 642(c)(5).
  • The average of the applicable federal mid-term rates for the 60-month period ending December 31, 2025.

December 19, 2025: The IRS issued Notice 2026-1, providing interim guidance related to the credit for carbon oxide sequestration under Code Section 45Q pending the forthcoming proposed regulations removing reporting obligations related to the geological sequestration of carbon dioxide imposed under subpart RR of 40 CFR part 98. The notice specifically provides a safe harbor for determining eligibility for qualified carbon oxide, captured and disposed of in secure geological storage and not used as a tertiary injectant in a qualified enhanced oil or natural gas recovery project, during calendar year 2025. Notice 2026-1’s safe harbor applies if the US Environmental Protection Agency does not launch the electronic Greenhouse Gas Reporting Tool for filers to prepare and submit information required under subpart RR by June 10, 2026. Taxpayers can rely on the safe harbor to demonstrate compliance with subpart RR requirements when determining the Code Section 45Q credit related to the 2025 Calendar Year Secure Geological Storage.

December 19, 2025: The IRS issued Notice 2026-6, extending the transition period in Revenue Ruling 2025-4 for states administering paid family and medical leave (PFML) programs and employers participating in PFML programs. The extension is for an additional year and only as it relates to the medical leave benefits a state pays to an individual that can be attributed to employer contributions.

December 22, 2025: The IRS issued Notice 2026-3, providing relief from Code Section 6654 and 6655 additions of tax for underpayments of estimated income tax by taxpayers making valid Code Section 1062(a) elections.

December 22, 2025: In Announcement 2026-1, the IRS declared its intent to issue guidance related to Code Section 6435. That guidance, intended for taxpayers that paid Code [...]

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Potential refund opportunity of buyback excise tax based on § 4501 final regulations

Taxpayers who paid the stock repurchase excise tax based on prior guidance provided in Notice 2023-2 and the proposed regulations under Internal Revenue Code (IRC) § 4501 may be entitled to a refund based on changes made in the recently issued IRC § 4501 final regulations.

On November 21, 2025, the US Department of the Treasury (Treasury) and the Internal Revenue Service (IRS) issued final regulations under IRC § 4501, which took effect on November 24 and significantly narrowed the applicability of the stock repurchase excise tax compared to prior guidance provided in Notice 2023‑2 and the April 9, 2024, proposed regulations (collectively, the prior guidance). As a result, many transactions that were previously treated by the prior guidance as “repurchases” subject to the 1% stock repurchase excise tax are now no longer taxable. Taxpayers who paid the excise tax based on the prior guidance may be eligible for a refund.

The final regulations eliminated the prior guidance’s broad “funding rule,” which treated a US affiliate that was considered to have “funded” a foreign publicly traded parent (or its foreign affiliates), including via distributions or capital contributions, as having engaged in a covered stock repurchase. The final regulations also significantly narrowed the proposed regulations’ expansive treatment of transactions as “economically similar” to a stock repurchase by specifically excluding leveraged buyouts and other take-private transactions, complete liquidations, and tax-free acquisitive reorganizations under IRC § 368 from being subject to the excise tax. Moreover, the final regulations narrowed what qualifies as “stock” for IRC § 4501 purposes, specifically excluding certain preferred stock described in IRC § 1504(a)(4) (e.g., “plain vanilla” non-voting, non-participating preferred stock) and certain mandatorily redeemable or puttable stock issued before August 16, 2022 (i.e., the date of enactment of IRC § 4501).

The changes in the final regulations have potentially sweeping implications for taxpayers who paid the IRC § 4501 stock repurchase excise tax based on the prior guidance. The narrower scope of the applicability of stock repurchase excise tax under the final regulations creates a substantial opportunity to seek a refund of stock repurchase excise tax previously paid under the now-obsolete prior guidance.

To seek a refund, taxpayers should file Form 720-X, Amended Quarterly Federal Excise Tax Return, for each quarter they filed an original Form 720 reporting and paid the stock repurchase excise tax and attach a Form 7208 (with “Amended” at the top of each form) to each quarterly Form 720-X. Both Form 720-X and amended Form 7208 should be completed, and the excise tax recomputed, based on the final regulations. Because Form 720-X will serve as the taxpayer’s refund claim, it is critical that Form 720-X contains a detailed explanation of the legal basis for the adjustments to the original Forms 720 and 7208 to meet regulatory requirements imposed by the Treasury on refund claims. See Treas. Reg. § 301.6402-2 (setting forth the basic requirements for refund claims).

Taxpayers considering this refund opportunity should be aware that the statute of limitations deadline for filing a refund [...]

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