TL;DR: If you signed IRS Form 872, a fixed-date consent to extend the time to assess tax, you cannot cancel it early by filing Form 872-T. The U.S. Tax Court ruled in Fine v. Commissioner, 167 T.C. No. 13 (2026), that Form 872-T terminates only open-ended Form 872-A extensions, not fixed-date Form 872 agreements. Once you sign a Form 872, only the arrival of the agreed expiration date, a new written agreement with the IRS, or the IRS issuing a Notice of Deficiency can end the extension period.
By Fresh Start Initiative
An IRS audit is already stressful. Then the examiner asks you to sign a form giving the agency more time to assess taxes against you. You sign because you want to cooperate or because you need time to gather records. Months pass, settlement talks go nowhere, and now you want the clock to start ticking again. So you mail in a termination notice, confident the audit must close soon.
That strategy just got a definitive “no” from the U.S. Tax Court. A precedential September 2026 ruling makes clear that once you agree to a fixed end date on a Form 872, you are bound to it. Understanding exactly what the court decided, why it matters, and what options remain is critical for anyone currently facing an IRS examination or carrying tax debt while under audit.
If the audit ultimately results in a bill you cannot pay, explore your tax debt relief options before the IRS moves to collect. The decisions you make now, including how you handle statute of limitations extensions, can affect every step that follows.
What Is IRS Form 872 and Why Does the IRS Ask You to Sign It?
IRS Publication 1035, Extending the Tax Assessment Period, explains that the IRS uses two kinds of consent forms to extend the time it has to assess additional tax: a fixed-date consent and an open-ended consent. IRS Internal Revenue Manual 25.6.22 confirms that Form 872, Consent to Extend the Time to Assess Tax, is the standard fixed-date version, while Form 872-A, Special Consent to Extend the Time to Assess Tax, is the open-ended version.
Under IRC Section 6501(a), the IRS generally has three years from the date you file a return to assess additional tax. When a complicated audit is approaching that deadline, the examiner may ask you to agree to more time. Signing Form 872 sets a new, specific expiration date. Signing Form 872-A leaves the window open indefinitely.
Critically, the form itself tells you that you do not have to sign. Under IRC Section 6501(c)(4)(B), you have the right to refuse entirely, the right to limit the extension to specific unresolved issues only, and the right to limit the extension to a specific period of time. No penalty may be imposed simply for refusing. Many taxpayers sign anyway, often without fully understanding what they are giving up.
The Key Difference Between Form 872 and Form 872-A
The distinction between these two forms is at the heart of the Fine v. Commissioner case and it is a distinction that trips up taxpayers every day. The table below summarizes how the two consent forms work side by side.
| Feature | Form 872 (Fixed-Date Consent) | Form 872-A (Open-Ended Consent) |
|---|---|---|
| Assessment period ends | On the specific date written in the form | 90 days after either party sends Form 872-T, or when IRS issues a Notice of Deficiency |
| Can taxpayer terminate early? | No. Only passage of time ends it. | Yes. Taxpayer sends Form 872-T; IRS has 90 days to act. |
| Can IRS terminate early? | Yes, by issuing a Notice of Deficiency before the end date | Yes, by sending Form 872-T or issuing a Notice of Deficiency |
| Typical use | Most examination and appeals situations | Cases held in suspense or protracted appeals |
| Risk to taxpayer | Locked in until stated date; no early exit | Audit can drag for years if taxpayer forgets to file Form 872-T |
| Governing authority | IRC Section 6501(c)(4); IRM 25.6.22 | IRC Section 6501(c)(4); IRM 25.6.22 |
Form 872-A is the riskier form for taxpayers who are not paying close attention. If you sign Form 872-A and forget to file Form 872-T, the assessment period can remain open for years, even decades, with no urgency for the examiner to finish the audit. A fixed-date Form 872, by contrast, gives you a firm outer boundary, but as Fine v. Commissioner now confirms, that boundary works in only one direction once signed.
What Happened in Fine v. Commissioner
The taxpayers in Barry Holmes Fine and Monica Dias v. Commissioner, 167 T.C. No. 13 (September 30, 2026), signed several Form 872 agreements during a multi-year IRS examination, extending the assessment period for their 2015 and 2016 tax returns to specific future dates. When settlement negotiations with the IRS Appeals office broke down, their counsel faxed Forms 872-T to IRS representatives. The taxpayers argued that those submissions terminated the extensions, giving the IRS only 90 days to issue Notices of Deficiency.
The IRS disagreed and issued Notices of Deficiency before the stated Form 872 expiration dates, but more than 90 days after receiving the Forms 872-T. The taxpayers then filed a Tax Court petition arguing the notices were untimely because the 90-day clock should have started from when the IRS received the Form 872-T terminations.
Tax Court Judge Ashford granted partial summary judgment for the IRS. The court held that Form 872-T applies exclusively to open-ended waivers executed on Form 872-A and has no legal effect on a properly executed, fixed-date Form 872. In the court’s plain terms: “only the passage of time can terminate Form 872.” The Notices of Deficiency issued before the Forms 872’s stated expiration dates were timely, and the taxpayers’ statute of limitations defense failed.
The ruling addressed an open question in the U.S. Court of Appeals for the Eleventh Circuit and is now a precedential opinion binding future Tax Court cases.
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Check Your Eligibility →Why You Cannot Use Form 872-T to Escape a Form 872
The taxpayers in Fine made an understandable but legally flawed argument. They pointed out that Form 872-T does not even contain a checkbox specifically for terminating a Form 872, only for terminating a Form 872-A. They also argued that fairness demanded symmetry: if the IRS could shorten the extension by issuing a deficiency notice early, taxpayers should be able to shorten it too by filing a termination notice.
The Tax Court rejected that reasoning. A Form 872 is a binding written contract, and contract interpretation rules apply strictly to IRS consent forms. The form contains the entire terms of the agreement, and those terms include a specific end date with no provision for unilateral termination by the taxpayer. Attaching copies of the Form 872 agreements to the Form 872-T filings, as the taxpayers did to show intent, was legally irrelevant. Intent cannot override the plain terms of a signed agreement.
The IRS’s position, upheld by the court, is that a Form 872 is an unconditional, unambiguous agreement. Strategic dissatisfaction with how appeals negotiations are going does not give a taxpayer the right to rewrite the terms after signing. If you sign a Form 872, you should treat it as a firm commitment.
What Your Actual Options Are Before and After Signing
The good news is that you have more leverage before you sign than after. Here is a clear step-by-step look at your options at each stage of the process.
- Before signing: Ask for a restricted consent. You can limit the extension to specific unresolved issues only, rather than agreeing to extend the assessment for your entire return. This protects issues that are not in dispute.
- Before signing: Negotiate a shorter fixed date. If the IRS asks for a two-year extension, you can counter with a shorter one. The IRS is not required to accept a shorter period, but negotiation is allowed and often productive.
- Before signing: Refuse entirely. If the statute is close to expiring and you have a strong position, refusing to extend may force the IRS to issue a Notice of Deficiency based on limited information, giving you 90 days to petition Tax Court. This is a calculated risk and not right for every situation.
- After signing Form 872: Wait for the expiration date. Under Fine v. Commissioner, this is the only way the extension ends unilaterally. Track that date carefully and make sure your representative tracks it too.
- After signing Form 872: Negotiate a new written agreement to end it sooner. The IRS and the taxpayer can mutually agree in writing to shorten the extension period. This requires IRS cooperation but is legally permissible.
- After signing Form 872: Seek resolution before the date arrives. Use the remaining time productively. Push for an Appeals conference, submit additional documentation, or evaluate whether an audit reconsideration or other resolution path makes sense given the facts.
- If a deficiency is assessed: Respond quickly. You have 90 days from the mailing of a Notice of Deficiency to petition Tax Court (150 days if you are outside the United States at the time). Missing this deadline generally means you lose the right to contest the amount in Tax Court before paying.
- If a tax debt results: Explore tax debt relief programs. An assessed deficiency does not have to become a financial crisis. Payment plans, offers in compromise, and other resolution tools exist. The key is acting before IRS collection action begins.
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Check Your Eligibility →What This Means If the Audit Results in a Tax Bill
The Fine decision is primarily a procedural ruling about statute of limitations extensions. But for everyday taxpayers, the practical consequence is what happens at the end of a prolonged audit: a tax bill. If the IRS assesses additional tax and you cannot pay it in full, that is where tax debt relief becomes essential.
Owing money to the IRS after an audit is far more common than most people realize. The IRS offers several resolution programs, and the right one for you depends on your income, assets, the size of the debt, and your compliance history. Doing nothing is never the right answer. The longer you wait, the more penalties and interest accumulate, and the more aggressive IRS collection action becomes, including liens, levies, and wage garnishment.
A qualified tax debt relief professional can review your situation, evaluate which programs you may qualify for, and communicate with the IRS on your behalf. If your audit has produced a balance you cannot handle, see how IRS payment plans and other resolution programs work before the IRS escalates to collection.
Frequently Asked Questions
Can I cancel a Form 872 after I sign it?
No. The U.S. Tax Court held in Fine v. Commissioner, 167 T.C. No. 13 (2026), that a fixed-date Form 872 cannot be terminated early by filing Form 872-T. The Form 872-T termination notice applies only to open-ended Form 872-A consents. Once you sign a Form 872, the extension remains binding until the stated expiration date, unless the IRS issues a Notice of Deficiency before that date or both parties execute a new written agreement to end it sooner.
What is the difference between Form 872 and Form 872-A?
Form 872 is a fixed-date consent that extends the IRS’s time to assess tax until a specific date agreed to by both parties. Form 872-A is an open-ended consent with no set expiration date. A Form 872-A ends 90 days after either the IRS or the taxpayer sends Form 872-T, or when the IRS issues a Notice of Deficiency. Because a Form 872-A can stay open indefinitely, it generally creates more risk for taxpayers who do not actively manage and terminate it.
What happens if I refuse to sign Form 872?
If you refuse to sign, the IRS cannot extend the assessment period unilaterally. However, if the original statute of limitations is about to expire, the IRS will likely issue a Notice of Deficiency based on whatever information it has, even if the audit is incomplete. You then have 90 days to petition the U.S. Tax Court to contest the proposed deficiency. Refusing to sign is a legitimate strategic choice but it carries risks that depend heavily on your specific facts and how much time remains on the statute.
Does signing Form 872 affect my appeal rights?
No. Both Form 872 and Form 872-A state clearly that signing the consent does not deprive you of any appeal rights to which you would otherwise be entitled. You retain the right to request an Appeals conference and, if a Notice of Deficiency is issued, the right to petition Tax Court. Signing extends the assessment window. It does not waive your substantive or procedural rights in the audit or in any subsequent litigation.
What should I do if the IRS assessed a large tax bill after a prolonged audit?
First, confirm whether the assessment is accurate and whether you timely received a Notice of Deficiency with the opportunity to petition Tax Court. If the assessment is correct and final, contact a qualified tax debt relief professional to evaluate your resolution options. These may include an installment agreement, an Offer in Compromise, Currently Not Collectible status, or another program. Acting quickly reduces penalties and interest and limits the risk of enforced collection like liens and levies.
Can the IRS and I agree to shorten a Form 872 extension after signing?
Yes. While you cannot unilaterally terminate a Form 872 by sending a Form 872-T, both parties can mutually agree in writing to end the extension sooner or adjust its scope. This requires IRS agreement and is different from a unilateral termination. If you want to pursue this, work with a tax professional who can negotiate directly with the IRS examiner or Appeals officer on your behalf.