Can't Pay the Tax From an IRS Audit? Your Options After the Exam

From audit report to IRS bill: what happens next

An audit does not create a bill on its own. The IRS first has to assess the extra tax, and how fast that happens depends on whether you agreed. Publication 3498 (Rev. 5-2025) describes both paths:

• You agreed. You sign the agreement form (usually Form 4549) and the IRS asks you to pay the tax, interest and any penalties. If you pay when you sign, the IRS generally figures interest from the return’s due date to the date you pay. If you don’t pay, you get a bill.
• You didn’t agree, or didn’t answer. The IRS sends a 30-day letter, then a Notice of Deficiency (the 90-day letter). If you don’t petition the Tax Court in time, IRC 6213(c) says the tax is assessed and must be paid on notice and demand. See the 30-day letter and the Notice of Deficiency.

Once the tax is assessed, the normal collection notices begin. The first bill is usually a CP14, which the IRS says it sends “because you owe money on unpaid taxes.” Reminders such as the CP501 follow if it isn’t paid. The CP504 is a Notice of Intent to Levy under IRC 6331(d), and the IRS says it can then take a state tax refund. A final notice of intent to levy comes with Collection Due Process rights, which you must use within 30 days (IRS.gov, 2026). Our page on what happens when you owe the IRS walks through the whole notice stream.

Publication 3498 adds a short grace period: if you pay a bill in full within 21 calendar days, the IRS will not charge more interest or penalties on it. For bills of $100,000 (IRS.gov, 2026) or more, the window is 10 business days.

Pay or deposit early to stop interest

Interest on audit tax usually runs from the original due date of the return, so a two-year-old return can carry two years of interest before the first bill arrives. The rate is the federal short-term rate plus 3 percentage points, reset quarterly (7% (IRS.gov, Jul-Dec 2026) this quarter), compounded daily.

You do not have to wait for the bill. Publication 3498 says that if you think you will owe at the end of the exam, you can make an advance payment on the deficiency or an IRC 6603 deposit for all or part of the amount, and “interest will stop accumulating on the part you pay or deposit when the IRS receives your money.” It also warns that, because of compounding, interest keeps building on interest that already accrued.

Paying part now still helps even if you can’t pay it all. Publication 3498’s advice for a bill you can’t pay is to “pay as much as you can and contact us immediately,” then set up a payment plan for the rest. Each dollar paid stops interest and late-payment penalties on that dollar.

The accuracy-related penalty and how to get it removed

Many audit bills include an accuracy-related penalty. Under IRC 6662(a) it is 20 percent of the part of the underpayment it applies to. The most common grounds are:

• Negligence or disregard of rules. The IRS describes negligence as not making “a reasonable attempt to follow the tax laws” when you prepare your return; leaving off income shown on a Form 1099 is its example.
• Substantial understatement. For individuals, an understatement is substantial if it is more than the greater of 10 percent of the tax that should have been shown or $5,000 (5 percent instead of 10 percent if you claimed the section 199A deduction), per IRC 6662(d) and the IRS penalty page.
• Valuation misstatements. A gross valuation misstatement doubles the rate to 40 percent (IRC 6662(h)).

Ways to challenge or remove it:

• Reasonable cause and good faith. IRC 6664(c)(1) says no accuracy penalty applies to any part of an underpayment where “there was a reasonable cause for such portion” and you “acted in good faith.” The IRS reasonable-cause page lists accuracy-related penalties as eligible. Call the number on your notice, or ask in writing on Form 843. Relying on a competent professional, or an honest mistake on a genuinely unclear rule, are the kinds of facts to document.
• Contest it with the tax. If the audit is still open or you are within the 30-day or 90-day windows, raise the penalty in Appeals or the Tax Court along with the tax. See agree or appeal.
• Supervisory approval. IRC 6751(b) says most penalties, including the accuracy penalty for negligence or substantial understatement, can’t be assessed unless the initial determination was personally approved in writing by the examiner’s immediate supervisor or a higher official. A representative will check whether that approval exists.

If a penalty is removed, the interest charged on that penalty is reduced or removed too, according to the IRS.

Payment options if you can't pay the audit balance

Once assessed, an audit balance is handled like any other IRS balance. These are the main choices, in the order most people should consider them. Each links to the Fresh Start guide for the full rules.

Simple Payment Plan. The Simple Payment Plan (formerly the streamlined installment agreement) is the usual route for an audit balance of $50,000 or less. You can apply online without a financial statement and pay over up to 10 years (IRS.gov, July 2026), as long as the balance is paid by the collection statute date. The failure-to-pay penalty drops to 0.25% (IRS.gov, 2026) a month while the plan is in place.

Offer in compromise. If you can’t pay in full even over time, a doubt-as-to-collectibility offer on Form 656 asks the IRS to accept less, based on your income, expenses and assets. Publication 3498 also points to it when paying in full “would cause you a financial hardship.”

Delay collection. If you can’t pay anything without missing basic living expenses, Publication 3498 says you can ask the IRS to delay collection. It may ask for a Collection Information Statement and proof of your finances. Penalties and interest still accrue, and the IRS may file a Notice of Federal Tax Lien.

Joint returns. If the audit changed a joint return and the error was your spouse’s or former spouse’s, Publication 3498 notes you may qualify for innocent spouse, separation of liability or equitable relief on Form 8857. See Fresh Start for married couples.

If the audit result is wrong, dispute it before you pay for years

A payment plan is the wrong tool for a tax you don’t actually owe. Which dispute route you have depends on where you are:

• Before assessment. Within the 30-day letter window you can request Appeals. Within the 90-day (150-day if addressed outside the US) Notice of Deficiency window you can petition the Tax Court without paying first (IRC 6213(a)).
• After assessment, unpaid. Audit reconsideration lets you reopen the audit with documents the examiner never saw. Publication 3498 says requests are generally accepted when the liability is unpaid and you bring new information, filed a return after the IRS made one for you, or show an IRS computational or processing error.
• Doubt as to liability offer. Form 656-L (Rev. 7-2026) is for a “genuine dispute as to the existence of or the amount of the correct tax.” No application fee or deposit is required. It can’t be used if a final court decision set the tax, and if audit reconsideration is already underway you must wait for it to finish. The form says not to file it if you agree you owe but can’t pay.
• Pay and claim a refund. You can pay, file a refund claim and, if it’s denied, sue in a US District Court or the Court of Federal Claims. See missed an audit deadline for the timing rules.

If you think the bill itself is wrong (for example, a payment wasn’t credited), Publication 3498 says to let the IRS know as soon as possible: call the number on the bill or write to the office that sent it, with copies of your records.

Example (assumed figures): sorting out an audit bill

Example (assumed figures). A mail audit of a 2023 return disallows deductions, proposes $12,000 of tax and adds a 20 percent accuracy-related penalty of $2,400. Interest on both comes to an assumed $1,600 by the time the CP14 arrives, so the bill is $16,000.

1. Check the penalty first. If the error came from relying on a preparer’s written advice, a reasonable-cause request could remove the $2,400 penalty and the interest on it, leaving about $13,400 in this example.
2. Pay what’s available now. A $3,000 payment from savings stops interest on that $3,000 the day the IRS receives it.
3. Set up a plan for the rest. The remaining balance is under the Simple Payment Plan limit, so an online direct debit plan is available. Over 60 months, $10,400 is about $173 a month before ongoing interest and the reduced failure-to-pay penalty, which add to the total.

Your numbers will differ. Use the payment plan calculator with your own balance.

Doing it yourself, free help, and when to get a professional

Most people can set up a payment plan for an audit balance on their own through IRS.gov or the number on their bill. A professional is more useful when the penalty is large and you have a real reasonable-cause argument, when the audit result looks wrong and the Tax Court deadline has passed, when the balance is too large for a Simple Payment Plan, or when you are weighing an offer in compromise.

• Taxpayer Advocate Service. Free help if your tax problem is causing financial difficulty or you have tried and been unable to resolve it with the IRS: 877-777-4778 (IRS.gov, 2026) or taxpayeradvocate.irs.gov.
• Low Income Taxpayer Clinics. LITCs represent eligible taxpayers in audits, appeals and collection matters, for free or a small fee.

Global Gate Tax Relief offers a free consultation. It files a Form 2848, pulls your IRS transcripts and reviews the audit report before recommending anything, and if it takes the case it quotes a flat fee upfront. It will not quote a result before seeing your transcripts, and no outcome is guaranteed. Request a free review or call 1-877-800-8180.

Frequently asked questions

Keep reading in the IRS Audit Guide

• I owe the IRS: what happens nextThe notice stream after a bill, from CP14 to levy.
• IRS audit reconsiderationReopen an unpaid audit assessment with new documents.
• The IRS 30-day letterAgree, partly agree or request Appeals before assessment.
• Missed an IRS audit deadline?What is still open after the 30-day or 90-day window.
• Fresh Start options comparedPayment plan vs offer vs currently not collectible.