30-Day Letter: When and How to Request IRS Appeals

Thirty days and ninety days belong to different procedures.

A Letter 525 or similar 30-day letter generally offers an administrative opportunity to ask the IRS Independent Office of Appeals to review proposed examination adjustments. A later statutory Notice of Deficiency starts the separate Tax Court petition period.

Use the actual letter's response date.

Current IRS guidance generally directs the protest within the period stated in the letter. Treat that administrative deadline seriously, but do not describe it as the same statutory jurisdictional deadline as §6213(a).

Build the protest issue by issue.

Start with the examination report and identify each disputed adjustment. For each issue: state the facts, explain why the proposed treatment is wrong, identify the supporting law or position, and attach organized substantiation consistent with the applicable protest procedure.

Do not send conclusions without the record.

“I disagree” does not give Appeals the factual and legal structure needed to evaluate the case. Reconstruct the return, examiner's adjustment, prior submissions and evidence.

Payment is usually not required to request pre-assessment Appeals review.

The point of this stage is administrative review before deficiency procedures are finalized. Payment strategy should not replace the protest when Appeals review is desired.

Do not let Appeals activity obscure a later Notice of Deficiency.

If a statutory Notice of Deficiency is later issued, its Tax Court deadline becomes a separate controlling event. Administrative conversations do not extend that statutory filing period.

The PRISM principle

A 30-day letter is an Appeals opportunity. A 90-day letter is a court-rights deadline. Never treat them as interchangeable.