IRS Audit Reconsideration After Assessment: Building the Record the IRS Did Not Review

An unmarked examination file, tabbed evidence, and a completed review binder arranged in sequence.
Audit reconsideration begins by matching each disputed adjustment to information the IRS did not previously evaluate.

Review the primary official source.

Authority: Primary official sources: https://www.irs.gov/pub/irs-pdf/p3598.pdf

What audit reconsideration is

IRS Publication 3598 describes audit reconsideration as a process for a taxpayer who disagrees with an audit assessment or with a return prepared by the IRS under its substitute-for-return authority. It may be relevant when the taxpayer did not appear, moved and missed correspondence, has additional information that was not previously provided, or otherwise disputes the audit result. It is a focused request to reconsider an assessment, not a new tax return or a promise that the IRS will reopen every case.

A useful analysis begins by naming the governing document and the decision it controls. A statute, regulation, agency form, notice, medical report, payroll record, or court order may answer only part of the question. Record its date, source, effective period, and relationship to the other materials. That discipline prevents a summary page, informal statement, or old form from silently displacing the authority that applies to the current event.

Review the governing official source before applying these concepts to a current matter. Agency pages and forms can change, and the operative notice or order remains part of the record.

Identify the assessment and the missing record

Begin with the examination report and attachments. Identify each adjustment, the year, the line item, the IRS explanation, and the evidence previously considered. Then separate genuinely new or previously unavailable material from documents already rejected. If the taxpayer never received the correspondence, preserve address history and mail evidence. If records were incomplete, explain what has changed and why the new material directly answers a stated adjustment.

Chronology supplies the second control. Build the sequence from contemporaneous records before drawing an inference: what happened, when it happened, who knew, what was submitted, what response followed, and what deadline or transfer came next. When dates conflict, preserve both versions and identify the source of each. A reliable timeline separates a missing event from a late event and shows which gap actually changes the available procedure.

Keep conclusions tied to identified records. Mark facts as confirmed, reported, disputed, or still unknown so an urgent decision is not built on an assumption.

Build an issue-by-issue submission

A useful submission is organized by issue rather than by document type alone. For each disputed item, state the adjustment, the taxpayer's position, the legal or factual point the record addresses, and an exhibit list. Reconcile totals and avoid sending a large unsorted file. Copies should be legible, personal explanations should be signed when appropriate, and the package should preserve sensitive information while still allowing the assigned examiner to trace the proof.

Proof should be mapped to the exact proposition it supports. One document may establish identity, another amount, another notice, and another timely delivery. Labeling exhibits by issue makes omissions visible and avoids expecting a single record to prove the entire matter. Keep complete originals secure, work from organized copies, preserve file metadata where useful, and maintain a transmission log so the recipient and delivery date can later be verified.

Related background is available in our practice guide. Use that broader framework to place this narrower issue in the correct claim, case, or filing sequence.

Keep collection and appeal posture separate

Reconsideration and collection are separate tracks. A request should not be assumed to stop collection activity, extend a court deadline, or replace an available appeal or refund route. Review current notices for levy, lien, deficiency, Appeals, or court rights and calendar each deadline independently. Keep proof of submission and follow-up. If the IRS declines reconsideration or changes only part of the assessment, the next step depends on the remaining procedural posture rather than the label placed on the original request.

The final review should test both substance and procedure. Ask who has authority to act, what that official can order, what remains outside that authority, and whether another deadline continues to run. Confirm the current form, address, portal, service rule, and supporting-document limit from an official source. A concise open-issues list should identify missing records, disputed facts, and the next event that could materially narrow the options. Date that review and repeat it whenever a new notice, payment, transfer, interview, or agency response changes the record. After submission, compare the recipient's acknowledgment and item count with the transmission index so an omitted attachment is found immediately.

For a focused review, assemble:

Then compare the file with our related analysis and identify the next deadline, decision-maker, and missing record. The immediate objective is a verified action plan, not a prediction of outcome.

Questions about your legal options?

Mission X Trial Lawyers evaluates matters in this practice area. Call (949) 343-9735 or email office@mcxlegal.com.