IRS Form 4549, Report of Income Tax Examination Changes, is the page at the end of an audit that lists the adjustments, the additional tax, penalties and interest the examiner proposes. Signing it generally means you agree. Before signing, it helps to understand exactly what you would be giving up and what other paths exist.
What IRS Form 4549 actually says
The form is a summary. It shows the original figures from your return, each change the examiner made, the corrected taxable income, the resulting tax, and any penalties. It is usually accompanied by Form 886-A, Explanation of Items, which gives the examiner's reasoning for each adjustment. Read the 886-A first. The 4549 tells you how much; the 886-A tells you why, and the why is where disagreements live.
Form 4549 versus Form 4549-A
You may see a version labeled 4549-A. That variant is generally used when the case is unagreed, and it often arrives with a 30-day letter explaining your appeal rights. A plain 4549 is more often handed over when the examiner expects you to agree. The label is a useful signal of where the IRS thinks the case is heading.
If you have a report on your desk and a signature line staring at you, call (415) 754-0115 to schedule your free consultation, or use our contact page, before the response date passes.
What signing the audit report means
Form 4549 includes consent language. By signing, you generally agree to the assessment and collection of the tax shown and waive the restrictions that would otherwise require the IRS to send a statutory notice of deficiency first. In practical terms:
- The IRS can assess the tax without issuing a 90-day letter.
- You give up the pre-payment route to the U.S. Tax Court for those adjustments.
- Interest continues until the balance is paid, and collection notices can follow quickly.
Signing does not always end every right. A taxpayer can, in some circumstances, later file a refund claim, and the IRS has a process called audit reconsideration for assessments that were wrong. But both routes are harder than contesting the adjustments before assessment.
Your options if you disagree with the examiner
Disagreement does not have to mean a fight. Many issues on a 4549 come down to missing documents or a misunderstanding of how a business operates.
Partial agreement
You can agree to some adjustments and contest others. The examiner can prepare a report reflecting only the agreed items, leaving the disputed ones for further review. This can reduce interest on the portion you accept while preserving your position on the rest.
Talk to the group manager
If the examiner will not consider additional records or seems to have misread them, you can ask for a conference with the examiner's manager. This is informal and sometimes resolves a sticking point quickly.
Request Appeals
If the case is unagreed, the 30-day letter explains how to ask for review by the IRS Independent Office of Appeals. Larger disputes generally require a formal written protest that sets out each disputed item, the facts and the law; smaller ones may qualify for a simpler small case request. Appeals is separate from the examination function and weighs the hazards of litigation, so a negotiated resolution is often possible there. Our guide to the IRS audit appeals process covers what a protest needs.
Fast Track Settlement as an alternative
Some small business audits are eligible for Fast Track Settlement, where an Appeals officer mediates while the case is still with the examiner. It can shorten the timeline, but not every case or issue qualifies. We explain it in our article on IRS Fast Track Settlement.
What happens if you do nothing
Ignoring the report does not make it go away. If you neither sign nor respond, the IRS will generally issue a statutory notice of deficiency, often called the 90-day letter. At that point the main pre-payment option is a petition to the U.S. Tax Court, filed within the deadline on the notice. If that deadline is missed too, the tax is assessed and moves into collection. Silence trades several options for one or none.
Questions to ask before you sign
- Does each adjustment on Form 886-A match what actually happened in your business or household?
- Were all the records you provided considered, and are any still missing that could change the result?
- Are the penalties automatic, or is there a reasonable cause argument?
- Will these changes flow through to your California return? The FTB generally expects to be told about final federal changes, and a federal adjustment can lead to a state assessment.
- Are later or earlier years likely to face the same issue?
The Somal Law Firm represents individuals and small businesses in IRS audits and appeals throughout Pleasanton, the Tri-Valley and the East Bay. Attorney Bob Somal can review the 4549 and 886-A line by line, explain which adjustments look supportable, and handle communication with the examiner or Appeals. Learn more about our tax audit and appeals practice.
Frequently asked questions
How long do I have to respond to Form 4549?
The cover letter usually states a response date. An unagreed report sent with a 30-day letter generally gives you 30 days from the letter's date to agree or request Appeals. If you need more time, ask before the date passes rather than after.
Can I change my mind after signing Form 4549?
Once signed and processed, the agreement is difficult to undo. Remedies such as a refund claim or audit reconsideration may exist, but they are narrower and slower than raising the issue before you sign.
Does signing Form 4549 mean I have to pay right away?
Signing allows the IRS to assess the tax, after which you will receive a bill. If you cannot pay in full, collection alternatives such as an installment agreement may be available, and an attorney can review which ones fit your situation.
Will the IRS tell California about my audit?
The IRS and the FTB share information, and taxpayers generally must report final federal changes to the FTB. Expect the state to look at the same adjustments.
A short conversation before you sign can save a lot of trouble later. Call (415) 754-0115 to schedule your free consultation with The Somal Law Firm, or reach us through the contact page. Bring the report, the 886-A, and any letters from the examiner, and we will walk through your choices.
Attorney Advertising. This article is general legal information for Bay Area residents, not legal advice, and does not create an attorney–client relationship. Every situation is different — please consult a licensed attorney about your specific circumstances.