IRS Form 872: What Extending the Audit Statute Means
THE SHORT VERSION
- Form 872 is a written agreement that moves the deadline for the IRS to assess tax for the tax type and periods stated on the form.
- The standard Form 872 uses a fixed expiration date. Form 872-A is an open-ended consent that ends only after one of its stated termination events.
- A taxpayer can sign, ask to negotiate the period or covered issues, or refuse. Any consent requires agreement and signatures from both sides.
- Signing does not concede an examination adjustment, waive ordinary appeal rights, extend the payment deadline, or by itself create a tax balance.
- The exact taxpayer name, tax type, periods, expiration date, restrictions, and signatures determine the scope of a consent.
SOURCES USED
| IRS Form 872, Consent to Extend the Time to Assess Tax | The fixed-date consent terms, covered tax and periods, expiration date, taxpayer rights, claim and refund language, signature blocks, and execution instructions |
| IRS Publication 1035, Extending the Tax Assessment Period | The reason for consent requests, fixed and open consent periods, restricted consents, negotiation, refusal, administrative appeal timing, and deficiency procedures |
| Internal Revenue Manual 25.6.22 | Current IRS procedures for requesting, preparing, signing, recording, restricting, extending, and terminating assessment statute consents |
| IRS Publication 556, Examination of Returns, Appeal Rights, and Claims for Refund | The broader examination process, assessment limitations, examination outcomes, appeal rights, and refund claim framework surrounding a consent request |
| IRS CP3219A notice page | The statutory notice of deficiency, the last day to petition the Tax Court, and the rule that continued IRS contact does not extend the petition period |
Form 872 often arrives when an IRS examination is still open and the ordinary assessment deadline is getting closer. Its title, Consent to Extend the Time to Assess Tax, states its purpose precisely. The form is an agreement about how long the IRS has to assess tax for identified periods. It is not an amended return, an audit report, a payment agreement, or a notice that tax has already been assessed.
That distinction matters because a request for more time can appear beside documents that do very different jobs. An examiner may still be reviewing records, may have issued a preliminary report, or may be allowing time for administrative Appeals. The consent keeps the assessment period open. The examination findings, any agreement with those findings, and any later statutory notice remain separate questions.
This guide uses the current Form 872, Publication 1035, and the current IRS consent procedures. It explains the federal process in general. A completed consent, its transmittal letter, the examination file, and any later notice control the actual periods and response dates in a specific matter.
What is IRS Form 872?
IRS Form 872 is a written consent that extends the period in which the IRS may assess tax for the tax type and periods identified on the form. It uses a fixed expiration date. The consent changes the assessment deadline, but it does not decide the audit issues or establish that additional tax is due.
Assessment is the formal recording of a tax liability on the IRS account. An examination can propose changes before that recording occurs. The ordinary limitation period places a deadline on assessment, and a written consent can move that deadline when both the taxpayer and an authorized IRS official agree before the open period expires.
The current Form 872 PDF identifies the taxpayer, the kind of federal tax, each covered period, and the date through which assessment may be made. Those entries are the core of the agreement. A form for one tax year or one kind of tax does not silently become a consent for every year and every federal tax.
Form 872 also states that signing does not remove appeal rights that otherwise exist. It does not say that the proposed changes are correct, and it is not the consent form used to agree to an examination deficiency. An examination report such as Form 4549 or a waiver such as Form 870 serves a different function when the IRS seeks agreement to adjustments.
Form 872 concerns the period for assessing tax. It does not extend an installment agreement, change a return filing date, or set the collection period for a balance already assessed. The published audit lookback guide explains why the assessment and collection clocks must be kept separate.
Why does the IRS ask for a Form 872 consent?
The IRS generally requests consent when an examination, administrative review, or related processing cannot be completed before the assessment period expires. Extra time can allow further document review, discussion, or an administrative appeal. A request itself does not establish a deficiency, and the reason for the requested period should appear in the examination context.
Publication 1035 explains the practical reason for the request. The approaching statute can leave too little time for more records, consideration of a taxpayer position, an administrative appeal, or processing that follows an examination decision. A consent gives both sides a defined period in which those steps can continue without an immediate assessment solely to protect the deadline.
The IRS manual instructs employees to request only the extension needed to provide reasonable time to complete the case. The request commonly arrives with Letter 907, Request to Extend Assessment Statute, or an Appeals transmittal. The same procedures require Publication 1035 and notification of the rights to refuse, to request a limit on issues, and to request a limit on time.
A request late in an examination therefore says more about the calendar than the merits. It can accompany a case with unresolved factual questions, an agreed adjustment awaiting processing, or a dispute heading toward Appeals. The examination letter and report reveal the issue under review. Form 872 reveals the proposed scope and duration of the deadline agreement.
The consent can also preserve time for a credit or refund connected with the examination. Publication 1035 describes assessment and refund limitations together because both can affect a still open examination. Form 872 contains its own claim and refund language, so the completed form deserves review as an integrated agreement rather than as a blank extension date alone.
Which entries on Form 872 define the agreement?
The defining entries are the taxpayer name and identification number, address, kind of tax, covered tax periods, fixed expiration date, any restrictive wording, and the dated signatures. Each field narrows who, what, and when the consent covers. The transmittal letter provides context, but it does not replace the completed consent terms.
The first page states that the named taxpayer and the Commissioner consent to assessment of the identified federal tax for the periods shown through the listed expiration date. The reverse side carries signature blocks and execution instructions. A review can move from identity, to scope, to time, and finally to execution.
| Form entry | What it controls | Useful comparison document |
|---|---|---|
| Name and TIN | The taxpayer whose assessment period is being extended | The return and examination letter |
| Kind of tax | The federal tax covered by the agreement | The return type under examination |
| Period ended | The exact tax year or periods included | The year shown on the examination report |
| Expiration date | The fixed date through which assessment may occur | The date stated in Letter 907 or the transmittal |
| Restrictive wording | Any mutually agreed limit on the issues kept open | Any attached restrictive statement |
| Signatures and dates | Execution by the taxpayer and an authorized IRS official | Power of attorney or fiduciary document when applicable |
The IRS manual permits multiple periods on one consent only when the name, kind of tax, restricted issues, and extension date are the same for all periods. That rule makes comparison especially important when an audit covers several years. One line that differs can change whether a single form accurately states the intended agreement.
The expiration date is not necessarily the only timing language that matters. Form 872 states that when a Code provision suspends the running of the limitation period, the remaining days in the extended period are preserved when the suspension ends. This is one reason the date should be read with the complete form rather than treated as an isolated calendar entry.
What changes after Form 872 is signed?
An effective Form 872 gives the IRS until the stated fixed date, subject to the form terms and applicable suspension rules, to assess the covered tax. The examination can continue during that period. Signing does not accept proposed adjustments, waive ordinary appeal rights, create a payment plan, or prevent a later mutually agreed extension.
Publication 1035 calls a signed consent binding on both the taxpayer and the IRS. During an unconditional extension, the IRS retains the same authority to examine relevant issues and make an assessment that it had during the original open period. The taxpayer retains the same ordinary administrative appeal opportunities, provided enough time remains to use them.
The consent does not freeze the audit at its current stage. Records may still be considered, explanations may still be requested, and the examination report may still change. If the case is not finished before the new fixed date, another extension requires another mutual agreement made while the existing assessment period remains open.
Signing also does not equal consent to a deficiency. The Form 4549 guide explains how an examination report displays proposed changes and how an agreement to assessment is documented. Form 872 addresses the time available for assessment. Keeping those documents separate prevents a deadline agreement from being mistaken for acceptance of the audit result.
Form 872 includes language about a claim for credit or refund during the extended period and for six months after the agreement ends, with stated exceptions. That clause is part of the official form. It does not turn every examination into a refund claim, but it confirms that the written consent governs more than the final date printed in its first paragraph.
What choices are available when Form 872 is requested?
Publication 1035 describes three choices: sign an unconditional consent, negotiate the time or issues covered, or refuse to sign. A restriction or shorter period requires agreement from the IRS, just as the broader consent requires agreement from the taxpayer. The available path depends on the unresolved issues and remaining assessment time.
The form itself states the rights to refuse and to limit an extension to mutually agreed issues or a mutually agreed period. The IRS manual requires an employee to notify the taxpayer of all three rights each time consent is requested. Those are procedural choices, not predictions about which choice will produce a better examination outcome.
| Choice | What it means | What it does not mean |
|---|---|---|
| Sign an unconditional consent | The covered return remains open for examination and assessment through the agreed period | Agreement with any proposed tax change |
| Negotiate the terms | The parties discuss a shorter period, limited issues, or both | A unilateral edit that binds the IRS |
| Refuse consent | The ordinary or previously extended assessment period continues without a new agreement | Automatic closure of the examination without further action |
Negotiation can concern duration, scope, or both. Publication 1035 says factors include the number, type, and difficulty of unresolved issues and whether the remaining issues are agreed. Both sides must accept and sign the final terms. Handwritten changes or a separate informal understanding should not be assumed to alter the official form unless the resulting consent is properly prepared and executed.
General educational material cannot determine the effect of a particular proposed restriction or the time remaining on an account. Those questions can depend on filing dates, earlier consents, statutory suspensions, and the exact tax involved. A tax professional with the complete examination file can analyze those facts and the wording of the proposed consent.
How are Form 872 and Form 872-A different?
Form 872 is a fixed-date consent that expires on the date written in the agreement. Form 872-A is an open-ended consent that remains effective until a specified termination event and an additional period stated by the form. Form 872-T is used to terminate Form 872-A, not an ordinary fixed-date Form 872.
The two forms solve different timing problems. A fixed-date consent provides a visible endpoint and is used for most examination and Appeals activity. An open-ended consent can be used when the duration is harder to predict, including a case in suspense or one scheduled for Appeals. The title and termination language identify which agreement is present.
| Feature | Form 872 | Form 872-A |
|---|---|---|
| Duration | Ends on the fixed date written on the form | Runs until a stated termination event plus the applicable additional period |
| Typical use | Most examination and administrative appeal activity | Cases needing an open period, including suspense or Appeals situations |
| Taxpayer termination form | No Form 872-T procedure for the ordinary fixed date | Proper Form 872-T starts the stated termination period after receipt by the office considering the case |
| Further time | Another consent can extend the date by mutual agreement before expiration | The open consent continues under its own termination terms |
The current IRS manual section on open-ended consents states that Form 872-A generally ends 90 days after the examining office receives a properly executed taxpayer Form 872-T, 90 days after the IRS mails Form 872-T, after the stated notice of deficiency sequence, or upon a qualifying final assessment or overassessment.
A letter or oral statement is not the published taxpayer termination method for Form 872-A. The manual says the prescribed Form 872-T must reach the office considering the case, and the earliest IRS receipt date matters if another office receives it first. These open consent mechanics should not be imported into a standard Form 872 with a fixed expiration date.
Can a Form 872 consent be limited to certain issues?
A taxpayer can request a restricted consent that keeps the assessment period open only for clearly described unresolved issues. The IRS is not required to accept every request. The other issues generally must be agreed and handled, the restriction must be workable, and the language requires approval by the appropriate IRS official and Area Counsel.
A restricted consent is more precise than a shorter date. It allows the limitation period to expire for issues outside the restrictive language while keeping identified issues open. Because the wording determines that boundary, Publication 1035 says the IRS office prepares the restrictive language and obtains Counsel approval for legal sufficiency.
The IRS restricted consent procedures list five general conditions. The unresolved issues must be few enough to describe practically, their scope must be clear, issues outside the restriction must be agreed with provision for assessment or any applicable overassessment, an authorized official must approve the use, and Area Counsel must approve the language.
Publication 1035 therefore describes a right to request a restricted consent, not a right to impose one. The agreement remains mutual. A request can be discussed with the employee seeking consent, and the IRS generally prepares a new consent if the parties agree that restrictive language will be added or amended.
A label such as limited consent is not enough by itself. The typed wording and any referenced attachment identify the issues that remain open. A restriction can be fixed-date or open-ended, so both the scope language and the termination language matter.
Who signs Form 872, and when does it become effective?
A valid consent must be signed and dated by the taxpayer or a specifically authorized representative and by an IRS official with delegated authority. Joint return situations generally require both spouses unless valid authority permits one representative to sign. The consent must be executed while the existing assessment period remains open to extend that period.
The signature page separates individual, spouse, representative, corporate officer, and IRS signature blocks. For an income tax year in which a joint return was filed, the form instructions call for both spouses to sign unless one signs for the other under an adequate power of attorney. Separate notification rules also apply to each spouse when consent is requested.
A representative can sign only when the power of attorney specifically authorizes the act. Form 872 directs an attorney or agent to include the power of attorney if it was not already filed. A fiduciary such as an executor, administrator, or trustee generally attaches Form 56 unless it was previously filed. Corporate consent carries the corporate name and an authorized officer signature and title.
The IRS side matters as well. The manual requires a delegated official to sign and date the consent. It also instructs employees to verify the taxpayer signatures, dates, covered periods, kind of tax, and the existence of authority before the IRS accepts the agreement. A document bearing only one side of a proposed agreement is not the same as a fully executed consent.
Timing can be decisive because the agreement extends a period that must still be open. Earlier consents are retained when a later consent extends the date again, which creates a chain showing that each agreement was executed in time. Publication 1035 also states that a further fixed extension requires mutual agreement before the prior extension expires.
What happens if Form 872 is not signed?
Refusing Form 872 leaves the existing assessment deadline in place. The IRS may finish the examination using the information available and take timely action to protect assessment, often by issuing a formal notice of deficiency when deficiency procedures apply. Refusal does not itself erase proposed changes, end the audit, or require immediate payment.
Publication 1035 says that for taxes subject to deficiency procedures, the IRS can begin protection of the assessment period by issuing a formal notice. That notice does not by itself require immediate payment. It starts the statutory route for agreeing to the deficiency or petitioning the United States Tax Court by the date stated on the notice.
For individual income tax examinations, the notice may be CP3219A. The current IRS CP3219A page explains that the notice provides the last day to petition the Tax Court and that continued discussion with the IRS does not extend that statutory filing period. The printed petition date controls the actual notice.
A shorter remaining period can also affect administrative review. Publication 1035 explains that the IRS cannot provide an administrative appeal unless enough time remains on the assessment statute. That is one reason the consent decision and the examination response should be treated as connected procedural questions even though they are legally different documents.
The outcome is not always a deficiency notice. The relevant procedure can differ for employment tax, certain excise tax, partnership, penalty, or other specialized matters. The form title, kind of tax, return under examination, and transmittal letter show which process is involved. General income tax examples should not be applied automatically to a different tax regime.
How does Form 872 fit with common audit letters?
Form 872 runs beside the examination notice sequence rather than replacing it. Letter 566 can request records, Letter 525 can transmit proposed changes and administrative appeal information, and CP3219A can provide a statutory Tax Court petition period. The consent governs assessment time, while each letter governs its own request, response route, and date.
An audit file can contain several documents at once. A Letter 566 examination request can identify records needed to verify return items. Form 872 may arrive while that review continues. Responding to the document request does not sign the consent, and signing the consent does not supply the requested records.
A Letter 525 examination report can explain proposed adjustments and an administrative response path. Form 872 may preserve time for that path and any Appeals consideration. The report response date still comes from Letter 525 or the enclosing correspondence, while the assessment extension date comes from the executed consent.
| Document | Primary job | Date to identify |
|---|---|---|
| Letter 566 | Requests records during a correspondence examination | The requested response date |
| Form 872 and Letter 907 | Propose a mutual extension of the assessment period | The consent expiration date and requested return date |
| Letter 525 and examination report | Present proposed changes and an administrative review path | The response or protest date |
| CP3219A | Provide a statutory notice of deficiency and Tax Court route | The last day to petition printed on the notice |
The sequence is not identical in every examination, and some documents never appear. A case can close with no change, end by agreement, proceed through Appeals, or move toward a notice of deficiency. The safest process map comes from arranging the actual correspondence by date and labeling the separate request made by each document.
What belongs in a Form 872 review checklist?
A Form 872 review should identify the current assessment deadline, match the taxpayer and tax periods, compare the requested extension date with the transmittal, locate any restrictive language, confirm who must sign, and preserve the executed copy. The audit response date and any statutory notice date should be tracked separately from the consent date.
Start with document control rather than a decision about the consent. Assemble the request letter, Publication 1035, proposed Form 872, earlier consents, examination notices, reports, and any power of attorney. The set reveals whether the form matches the examination and whether an earlier agreement already changed the assessment date.
- 1.Confirm the taxpayer name, identification number, address, kind of tax, and each covered period.
- 2.Record the ordinary or previously extended assessment date and the new fixed expiration date proposed on Form 872.
- 3.Compare the form with Letter 907, Publication 1035, the examination report, and any attached restrictive statement.
- 4.Separate the consent return date from deadlines for records, an administrative protest, or a Tax Court petition.
- 5.Identify every required taxpayer, spouse, representative, fiduciary, corporate officer, and IRS signature block that applies.
- 6.Keep the fully executed consent, proof of any transmitted response, and every earlier consent in the examination file.
Questions about scope can be stated precisely. Which tax and periods are listed? Is the consent fixed or open? Is it unconditional or restricted? What event or date ends it? Which audit issues remain unresolved? Has the IRS signed? Precise questions make the completed document easier to compare with Publication 1035 and the examination correspondence.
Tax Panic provides educational explanations and does not access IRS accounts, calculate limitation periods, interpret a proposed restriction for a specific matter, or provide representation. The Android app can scan supported IRS notices and identify the notice code that accompanies the examination. It is free to start in the Google Play Store.
Frequently asked
Is Form 872 mandatory?▾
No. Form 872 and Publication 1035 state that a taxpayer can refuse to extend the assessment period. The IRS can then use the time still available to complete the examination and take any timely action permitted by the applicable procedure. Refusal does not automatically close the case or cancel proposed changes.
Does signing Form 872 mean agreeing that more tax is owed?▾
No. Form 872 is consent to more assessment time for the tax and periods listed. Agreement with examination changes is documented separately through an examination report, waiver, or other closing document. Signing the time extension does not by itself accept a proposed deficiency or create an assessed balance.
How long does Form 872 extend an audit?▾
The standard Form 872 extends the assessment period through the specific expiration date written on the completed form, subject to its terms and applicable suspension rules. There is no universal extension length in the Code. Publication 1035 says the requested time should be no longer than needed to complete the examination and processing.
Can Form 872 cover more than one tax year?▾
Yes. The IRS manual permits multiple periods on one consent when the taxpayer name, kind of tax, restricted issues, and expiration date are the same for every period. Each month, day, and year must be shown. Otherwise, separate forms can be necessary to state the agreements accurately.
What is the difference between Form 872 and Form 872-A?▾
Form 872 is a fixed-date consent. Form 872-A is open-ended and remains effective until one of its stated termination events, followed by the additional period described in the form. Form 872-T is the prescribed taxpayer method for starting termination of Form 872-A. It does not terminate an ordinary fixed-date Form 872.
Can a taxpayer ask for a shorter extension?▾
Yes. Form 872 states that the extension can be limited to a mutually agreed period, and Publication 1035 lists negotiation as one of the available choices. The shorter date is not unilateral. Both the taxpayer and IRS must agree to the terms and execute the resulting consent while the existing assessment period remains open.
Can Form 872 be limited to one audit issue?▾
A restricted consent can keep only clearly described unresolved issues open, but the IRS is not required to accept every request. The other issues generally must be agreed and handled, the restriction must be workable, and the language must receive the required IRS and Counsel approvals before the parties execute it.
Does Form 872 extend the time to collect an existing balance?▾
No. Form 872 extends the period for assessment of the covered tax. Collection concerns a balance after assessment and follows a separate limitation period and collection process. The presence of an existing balance or collection notice does not convert Form 872 into a payment plan or a collection extension agreement.
What happens when a fixed Form 872 date arrives?▾
The agreed fixed assessment period ends on the stated date, subject to the consent language and any applicable statutory suspension. If more time is needed, another extension must be mutually executed before the open period expires. The examination can also close, be agreed, proceed to Appeals, or move into the applicable deficiency procedure before then.
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