The grounds of appeal format for income tax disputes depends on how much money is at stake. If the additional tax and penalties the IRS proposes come to $25,000 or less for each tax year, you can list your grounds on Form 12203, a one-page Small Case Request. Above that threshold, you need a formal written protest: a letter containing six specific elements, with each disputed issue written as its own numbered ground that identifies the IRS adjustment, states your position, and cites the legal authority that supports it.1Internal Revenue Service. Preparing a Request for Appeals
Which Format Applies to Your Case
Look at the 30-day letter the IRS sent after your audit (Letter 525 for correspondence audits, Letter 915 for in-person exams). Add up the proposed additional tax and penalties for each year in dispute.2Taxpayer Advocate Service. Letter 525 Audit Report/Letter Giving Taxpayer 30 Days to Respond
At $25,000 or less per tax year, Form 12203 is enough. You list each item you disagree with and briefly explain why. Above $25,000 for any single tax year, the IRS requires a formal written protest with the full six elements.1Internal Revenue Service. Preparing a Request for Appeals
You can always choose the longer format even when the shorter one would qualify. When the facts need explaining or the issues are technical, the extra room to build an argument is worth the extra pages.
The Six Elements That Frame Your Grounds
A formal written protest is a letter, not a fillable form. The IRS returns protests that omit any of the following:3Internal Revenue Service. IRM 4.24.10 Appeals Referral Procedures
- A statement that you want to appeal the proposed changes to the IRS Independent Office of Appeals.
- Your full legal name, address, and a daytime telephone number. On a joint return, list both spouses.
- A list of every disputed issue, identified by tax year, with the dollar amount for each item and a statement that you disagree with it.
- The facts supporting your position on each issue.
- The legal authority you rely on for each issue — code sections, regulations, revenue rulings, or cases.
- A signed declaration under penalties of perjury.
The grounds of appeal live inside elements three through five. Some writers combine them into a single numbered section per issue; others separate them. Both approaches work, and the IRS does not prescribe a template.
How to Write Each Ground of Appeal
Give each disputed item its own numbered paragraph. Keep the arguments self-contained so that if the Appeals officer accepts your position on three items and rejects a fourth, the winning grounds stand independently. Each ground works well in three parts.
State the IRS Position
Open with what the examiner did and how much money it involves. Name the tax year, the line item, and the dollar amount. For example: “The examiner disallowed $8,400 in business travel expenses for tax year 2024, asserting that adequate substantiation was not provided.”
Specificity matters here. The Appeals officer may be looking at a case file running to hundreds of pages, and a vague objection like “the examiner was wrong about my deductions” gives them nothing to work with. Naming the adjustment, the year, and the amount tells the officer exactly where in the file to look.
State Your Position
Say what the correct tax treatment should be, in one clear sentence. Continuing the example above: “The $8,400 in travel expenses were ordinary and necessary business expenses, fully substantiated by receipts, credit card statements, and a contemporaneous travel log.”
Your position should mirror the language of the IRS position so that the difference between the two is unmistakable. If the examiner used the word “substantiation,” use it too and explain why the substantiation you have satisfies the standard.
Give Your Reasoning
Connect the facts to the law. Cite the Internal Revenue Code section, regulation, revenue ruling, or case that supports your reading, and explain how your documentation or circumstances meet the legal test. This is the part the Appeals officer weighs when estimating how a court would rule, so treat it as the heart of the ground.
Two habits weaken this section. One is repetition: making the same argument twice in slightly different words across separate grounds does not strengthen your case, and it can read as a lack of confidence. Make each argument once and make it well. The other is arguing law without facts, or facts without law. A ground that cites a code section but never explains how your situation fits it is only half an argument, and the same is true in reverse.
The Perjury Declaration
Every formal protest ends with a signed statement in language the IRS specifies:4Internal Revenue Service. Appeals Process
“Under the penalties of perjury, I declare that I examined the facts stated in this protest, including any accompanying documents, and, to the best of my knowledge and belief, they are true, correct, and complete.”
When a tax professional signs on your behalf, the wording changes based on whether they have personal knowledge of the facts. A representative who gathered the information firsthand signs a version affirming personal knowledge; a representative working only from documents you provided signs one stating they do not have personal knowledge of the underlying facts.4Internal Revenue Service. Appeals Process
Omitting the declaration is one of the most common ways a protest gets bounced. Without it, the IRS treats the submission as incomplete and the clock on your 30-day window keeps running.
Where to Send It and How Long You Have
Send the protest to the IRS address on the 30-day letter. There is no filing fee.1Internal Revenue Service. Preparing a Request for Appeals The deadline is 30 days from the date on the letter, not 30 days from when you received it, so build in mail time.
Missing the deadline does not end your dispute, but it changes the format entirely. The IRS then issues a statutory Notice of Deficiency, and your only remaining option is a petition to the U.S. Tax Court within 90 days of the mailing date of that notice.2Taxpayer Advocate Service. Letter 525 Audit Report/Letter Giving Taxpayer 30 Days to Respond5Office of the Law Revision Counsel. 26 USC 6213 – Restrictions Applicable to Deficiencies; Petition to Tax Court Tax Court is more formal, and it is not the place a written protest goes.
A Different Format Applies to Collection Appeals
The format above governs appeals of proposed tax adjustments after an audit. If the IRS is instead moving to collect a tax already assessed — filing a lien or notifying you of a levy — you appeal on Form 12153, a Request for a Collection Due Process or Equivalent Hearing, within 30 days of the collection notice.6Internal Revenue Service. Collection Due Process (CDP) FAQs The grounds you can raise are different too: procedural challenges, proof of payment, or collection alternatives such as an installment agreement or offer in compromise. The underlying tax can be challenged only if you never had a prior chance to dispute it. If your notice is a collection notice rather than an examination report, the written protest format described above is not the right container for your appeal.