IRS Form 4549, Income Tax Examination Changes, reports the adjustments an examiner proposes to your income tax return. Before agreeing, review the changes, their explanations, the penalties, and the consent language. Signing the agreement portion has consequences beyond acknowledging that you received the report.
The report may arrive with a letter explaining your response options. Keep that letter and every attachment together. Philip Falco, a Denver tax attorney and CPA, provides IRS audit representation involving both the accounting behind an adjustment and the legal response.
What Form 4549 tells you
The form connects changes to reported income, deductions, credits, or other items with a revised tax calculation. Depending on the case, the packet can also identify penalties and interest. The examiner’s reasoning may appear in an attachment such as Form 886-A, Explanation of Items.
Review the report against the return actually filed, amended returns, prior correspondence, and supporting records. A line described as an income adjustment may reflect a factual disagreement, a legal disagreement, or a reconciliation problem. Each requires a different response.
What does signing Form 4549 mean?
The consent language generally waives the opportunity to contest the reported findings through IRS appeal rights and a prepayment Tax Court proceeding, and permits immediate assessment and collection of the agreed increase. Read the specific document presented to you before signing; it is not simply a delivery receipt.
The IRS describes Form 4549 as combining the tax computation with a waiver of restrictions on assessment and collection in its Appeals agreement procedures. The IRS uses different report and agreement forms for different cases. For example, Form 4549-A generally does not contain the same consent signature line. Review any separate agreement enclosed with it.
Signing does not necessarily eliminate every possible later remedy, but a later challenge can involve different procedures, payment requirements, or limitations. Do not assume an audit reconsideration request can undo every agreement.
Five items to review before responding
- The taxpayer and years. Confirm the report covers the correct person or entity and the correct tax periods.
- Each disputed adjustment. Identify what the IRS changed and the documents or legal analysis supporting your position.
- The calculation. Check whether related deductions, credits, basis, losses, and amounts previously assessed have been handled correctly.
- Penalties and interest. Determine why each penalty is proposed and whether a separate response is appropriate. Amounts can change as interest accrues.
- The accompanying letter and agreement. Identify the response date, available review process, and consequences of consenting.
For example, if an examiner treats a bank deposit as additional business revenue, a response should explain the deposit’s source and connect it to the records. A statement that the total “looks wrong” does little to resolve the underlying issue. The example is illustrative; the evidence needed depends on the actual transaction.
What if you disagree with the proposed changes?
Explain the disputed items and provide organized supporting information through the channel identified for your examination. Depending on its stage, the case may involve further examiner review, a manager discussion, or consideration by the IRS Independent Office of Appeals. The IRS audit overview describes agreement and disagreement options.
If some items are correct and others are disputed, discuss how any partial agreement should be documented. Do not sign a full agreement on the assumption that an informal reservation preserves the disputed issues.
Form 4549 is not itself a Notice of Deficiency
A 30-day letter, a report of proposed changes, and a statutory Notice of Deficiency serve different purposes. A Notice of Deficiency may create a separate Tax Court petition deadline. Continued discussions with the IRS do not automatically extend that deadline. Read the actual notice and obtain advice promptly if the deadline is approaching. Our audit-letters guide explains common documents.
What if the tax has already been assessed?
A closed audit with an unpaid assessment may qualify for reconsideration when new information or an IRS processing error is involved. Other situations may require a refund claim or another procedure. The availability of a remedy depends on the assessment, payments, agreements, and any prior court determination.
Schedule a $500 Tax Attorney Consultation for review of your audit packet. The fee covers up to one hour of total attorney time, including review, analysis, preparation, and the telephone consultation. Ongoing representation requires a separate engagement.
General information; the report, accompanying notices, and procedural history determine the available response.