An audit that closed against you feels final. The determination letter arrives, a balance lands on your account, and the collection notices start asking for money you do not believe you owe. It is not always final. The IRS keeps an administrative door open for taking a second look at an examination it has already finished, and that door exists because assessments get made on incomplete information all the time. We open it regularly for taxpayers across Washington DC, Maryland and Virginia who never got their records in front of the examiner.
What audit reconsideration actually is
Audit reconsideration is the IRS process for reviewing an assessment that came out of an examination after that examination is over. It is not an appeal in the formal sense, and it is not litigation. It is a request that the examination function look again at a tax period it already closed, based on information it did not consider the first time.
The request is normally made with Form 12661, the IRS form used to explain which specific items from the audit report you disagree with and why. Some taxpayers send a detailed letter instead, which the IRS will accept, but the form imposes a discipline that helps. It forces you to go line by line through the adjustments rather than argue in generalities.
Two features make reconsideration valuable. It costs nothing to request, and it does not require you to pay the assessed tax first. That distinguishes it from a refund claim, which generally requires full payment before the IRS will consider the merits. For a taxpayer sitting on an assessment built from substitute figures rather than real records, that difference is the whole ballgame.
Reconsideration also applies to assessments the IRS created for you. If you never filed and the IRS prepared a substitute return, then examined it, the resulting balance is an audit assessment like any other. If you want a refresher on how examinations get opened in the first place, our breakdown of the different types of IRS audits walks through correspondence, office and field exams and how each one produces a record.
When the IRS will take a second look
The IRS does not reopen closed audits because a taxpayer is unhappy with the result. It reopens them when one of a small set of conditions is present. Understanding which one applies to your case determines whether the request is worth filing and how it should be written.
New information the examiner never saw
This is the most common ground. Records existed, or have since been reconstructed, that would have changed the outcome had the examiner reviewed them. Bank statements that substantiate deposits treated as unreported income. Receipts, invoices and mileage logs supporting deductions that were disallowed for lack of proof. Cost basis documentation for a property sale the IRS treated as pure gain.
The key word is new. Information you already submitted and the examiner already rejected is not new, and resubmitting it usually produces the same answer. The request has to add something to the file.
An error in the assessment itself
Sometimes the arithmetic or the identification is wrong. A payment was applied to the wrong period. Income was reported under a taxpayer identification number that is not yours. A form was counted twice. Identity theft cases fall in this category, and so do assessments that duplicate an amount already paid. These are the cleanest reconsideration requests because they do not require the IRS to reweigh judgment, only to correct a fact.
You never had a chance to contest the findings
Notices go to the address of record. People move, mail gets lost, and a taxpayer who was overseas, hospitalized or in the middle of a family crisis can miss the entire examination window without ever knowing it was open. If the first thing you learned about the audit was a collection notice, you never had a meaningful opportunity to respond, and the IRS will consider reconsideration on that basis. Our guide on what to do after an IRS audit notice arrives in Washington DC explains what the front end of that process should have looked like.
There are limits worth knowing before you invest in a request. If you signed a closing agreement, if you already litigated the same issue in Tax Court, or if you accepted a compromise on the liability, the matter is generally settled and reconsideration is not available.
Where reconsideration sits among the other options
Taxpayers often use appeal and reconsideration interchangeably, and the IRS does not. They are different roads with different rules, and picking the wrong one wastes months.
A formal protest to the IRS Independent Office of Appeals is the route while an examination is still live, or within the window that follows certain determination letters. Appeals is a separate function with authority to weigh the hazards of litigation, which examination cannot do. Tax Court is available after a statutory notice of deficiency, within the deadline that notice states, and it is the only path that lets you contest the liability in front of a judge before paying it.
Audit reconsideration lives after all of that has passed. It is the option when the deficiency notice deadline has expired, when Appeals is no longer available on the original schedule, and when the assessment is already on the books. Because it is administrative rather than statutory, there is no formal filing deadline, though the collection statute still runs and waiting has consequences. If you are weighing the formal routes instead, our comparison of the Appeals process against Tax Court lays out which one fits which posture.
A doubt as to liability offer in compromise is the fourth option. It asks the IRS to settle a liability you dispute rather than one you cannot pay. In practice we treat it as the fallback when reconsideration has been tried and the disagreement is genuine but the proof is imperfect.
Building a request the IRS can act on
A reconsideration request succeeds or fails on organization. The examiner reading it has your original audit file, a limited amount of time, and no memory of your case. Everything you want considered has to be in the envelope, labeled, and tied to a specific adjustment.
Start with the audit report and identify each adjustment separately. A request that says the audit was wrong invites a form denial. A request that says the disallowed vehicle expense for the 2023 tax year is supported by the attached log and the attached lease is something an examiner can act on in five minutes.
Then assemble proof that answers the examiner’s actual objection. Deductions disallowed for substantiation need documents, not explanations. Unreported income needs a reconciliation showing what the deposits actually were, with the statements attached in the same order as the reconciliation. Where original records are gone, reconstruct them from third party sources and say plainly that they are reconstructions and how you built them.
Write a cover letter that states what you want. Name the tax years, name the adjustments, state the corrected figures, and ask for the specific relief. Attach Form 12661, a copy of the examination report, and copies of any correspondence showing you did not receive earlier notices, if that is part of the argument. Send copies and keep originals. Our field notes on handling an IRS audit like a pro apply here as much as they do during a live exam, because the reviewer is applying the same standards to the same kind of file.
One discipline matters more than any other. Do not argue about fairness. The examiner cannot grant relief on fairness, only on facts and law, and pages spent on how unreasonable the process felt push the substantive material further back in the file.
What happens after you send it
Reconsideration requests go to the campus that handled the assessment, and the review is done by examination staff rather than Appeals. Processing takes months rather than weeks, and a first response is often an acknowledgment rather than a decision.
Three outcomes are possible. The IRS can accept the position in full and abate the assessment for the years at issue. It can accept part of it, which happens often when some adjustments were documentation failures and others were substantive disagreements. Or it can sustain the original assessment, which usually means the new material did not answer the objection the examiner raised.
If the outcome is partial, read the revised report closely before deciding whether to push further. The remaining adjustments are frequently the ones where the argument is about interpretation rather than proof, and those are better suited to Appeals or to a doubt as to liability offer than to a second reconsideration. Understanding why the IRS examines returns in the first place helps predict which adjustments an examiner will defend hardest.
Collections do not automatically stop
This is the part that surprises people. Filing a reconsideration request does not by itself suspend collection. Levies, liens and garnishments can proceed while the request sits in a queue unless someone affirmatively asks the collection function to hold enforcement.
In practice that means a reconsideration request should almost never travel alone. It goes out alongside a request that collection be suspended pending the review, and if enforcement has already started, alongside whatever collection relief fits the situation. The two tracks run in parallel and neither one waits for the other.
The collection statute also keeps running while you wait, which cuts both ways. It limits how long the IRS can pursue the balance, and it also means a request filed years after the assessment may be reviewing a period the IRS is about to stop collecting on anyway.
If the IRS denies your request
A denial is not the end of the sequence. You can submit a second request if you have material the first one lacked, though repeating the first request rarely changes anything. You can take the disputed liability to Appeals, which has settlement authority examination does not. You can pay the tax and file a formal refund claim, which preserves the right to sue for refund in district court or the Court of Federal Claims. Or you can accept the liability and move to resolution, because an amount you genuinely owe is better handled through a payment plan or an offer than through another round of argument.
The right choice depends on how strong the underlying position is and how much is at stake, and it is worth deciding deliberately rather than by default.
Frequently asked questions
Can you appeal an IRS audit decision?
Yes, and the route depends on timing. While the examination is open, or within the window a determination letter gives you, a formal protest to the IRS Independent Office of Appeals is the standard path. After a statutory notice of deficiency, Tax Court is available within the deadline that notice states. Once those windows have closed and the tax is assessed, audit reconsideration is the administrative option that remains, and it can still be followed by an Appeals referral if the reconsideration is denied.
Under which situation could the taxpayer request an audit reconsideration?
Three situations cover most cases. You have information the examiner never considered, such as records you could not produce during the audit. The assessment contains an identifiable error, such as a misapplied payment, a duplicate amount or income belonging to someone else. Or you never had a genuine opportunity to contest the findings because notices went to an old address or you were unable to respond. Reconsideration is generally not available where you signed a closing agreement, already litigated the issue, or settled the liability by compromise.
How to write a reconsideration letter to the IRS?
Identify the taxpayer, the tax years and the specific adjustments you dispute, one at a time. For each adjustment, state the correct figure and point to the attached document that proves it. Attach Form 12661, a copy of the examination report, and the supporting records in the same order you referenced them. Close by stating the relief you are asking for and requesting that collection be held while the review is pending. Keep it factual and keep the originals.
How long can the IRS look back for an audit?
The general examination window runs three years from the date the return was filed. It extends to six years when a substantial amount of gross income was omitted, and there is no time limit at all for a return that was never filed or that was fraudulent. Those rules bound what the IRS can examine going forward. Reconsideration itself does not have a filing deadline, but the collection statute on an existing assessment keeps running, so the practical window is defined by how long the IRS can still collect the balance.
Next steps
If an audit was decided on records the examiner never saw, the determination is worth challenging rather than paying. We review closed audit determinations for taxpayers throughout Washington DC, Maryland and Virginia, identify which adjustments are actually reversible, and file the request with the documentation that answers the examiner’s objection. Send us the audit report and the notices you received, and you will get a straight read on whether reconsideration is the right tool. Talk to our tax attorneys about your closed audit.
