Disagreeing With the IRS: How Appeals Works, and What Comes Next in Tax Court
You can dispute the IRS — there's an entire system built for it. The full route: the independent Office of Appeals and the concept of hazards of litigation, a small case request up to $25,000 versus a formal written protest, 90 days to petition Tax Court (150 from abroad), the difference between Tax Court, District Court, and the Court of Federal Claims, the simplified small tax case up to $50,000, and the separate CDP hearing track for collection.
Disagreeing With the IRS: How Appeals Works, and What Comes Next in Tax Court
"Can you even argue with the IRS?" I hear this constantly. The answer: not only can you — there's an entire system built for it. The IRS has a separate, independent office whose job is to hear disputes, and beyond that there are three courts you can go to.
The problem isn't that you can't argue. The problem is that every step has its own deadline, and a missed deadline closes the door permanently.
Let's walk the whole route, from letter to courtroom.
Step one: the IRS Independent Office of Appeals
Appeals is an office within the IRS, but independent of the people who conducted your examination or handle collection. Its mission is stated plainly: to resolve disputes without litigation, impartially toward both sides.
The key difference between Appeals and an examiner is a concept called hazards of litigation. An examiner looks at what the law says and stops there. Appeals is allowed to weigh how likely the IRS actually is to win this dispute in court — and if the position is shaky, to settle. That's exactly why a great deal gets resolved at Appeals that looked hopeless at the examination stage.
Two more things worth knowing: going to Appeals is free, and it doesn't cost you the right to go to court later if you can't reach agreement.
How to get to Appeals
Your entry point is the 30-day letter. It arrives after an examination and says plainly: here's what we propose to change, you have 30 days to respond.
What you file depends on the amount in dispute for a single tax period:
| Amount in dispute per period | What to file |
|---|---|
| $25,000 or less | Small case request — a letter in free form: what you disagree with and why |
| More than $25,000 | Formal written protest — a detailed document in a prescribed structure |
A formal written protest isn't an essay — it's a document with a required form. It must include your information, a reference to the IRS letter, the tax years, a list of the specific items you disagree with, the facts, the legal authority you rely on, and a signed declaration of truthfulness. Free-form text won't do the job here.
What actually helps at Appeals:
Step two: if you can't reach agreement
Then the IRS issues a Notice of Deficiency — the 90-day letter. From that moment the clock is running.
90 days from the date of the letter to file a petition with the US Tax Court. 150 days if it's addressed to an address outside the United States.
This deadline is set by statute. It isn't extended for illness, for travel, or because the letter was hard to understand. Miss it and the tax is assessed, leaving only the other, more expensive route.
The three courts, and how they differ
This is where people are most confused, and the difference is fundamental.
| US Tax Court | US District Court | US Court of Federal Claims | |
|---|---|---|---|
| Pay first? | No | Yes, then sue for refund | Yes, then sue for refund |
| Jury trial | No | Possible | No |
| Specialization | Tax only | All categories of cases | Claims against the government |
| When to go | 90/150 days after the Notice of Deficiency | After a refund claim is denied | After a refund claim is denied |
US Tax Court is the main option for most people. It's the only court where you don't have to pay first. The judges do nothing but tax. The petition filing fee is nominal — $60.
District Court and the Court of Federal Claims are the refund route: you pay the assessment, file a claim for refund, get denied, and sue. More expensive up front, but sometimes strategically worthwhile — District Court, for instance, allows a jury trial.
Small tax case: the simplified procedure
If the dispute doesn't exceed $50,000 for a tax period, you can elect the simplified procedure in Tax Court — a small tax case, or "S case."
What you gain:
What you give up:
For small disputes that's usually a sensible trade. But it should be a deliberate choice, not a default.
One more thing worth knowing in advance: filing a Tax Court petition very often ends not in a hearing but in a settlement. The case goes to IRS counsel, and a substantial share of these disputes are resolved by agreement before trial.
A separate track: disputing collection
Everything above is about disputing how much you owe. But sometimes the dispute is about how it's being collected: a lien has been filed, a levy is coming.
That has its own mechanism — a Collection Due Process (CDP) hearing. You have 30 days from the date of the notice to request one using Form 12153. A CDP hearing focuses less on the size of the debt itself and more on collection alternatives: installment agreements, currently-not-collectible status, offers in compromise.
Miss the 30 days and you're left with an Equivalent Hearing. It's similar in substance, but you've already lost the right to take it on to Tax Court.
Every deadline in one place
| What you're doing | Deadline | Measured from |
|---|---|---|
| Request Appeals | 30 days | Date of the 30-day letter |
| Petition Tax Court | 90 days | Date of the Notice of Deficiency |
| Same, address outside the US | 150 days | Date of the Notice of Deficiency |
| Request a CDP hearing | 30 days | Date of the lien / levy notice |
Let me repeat the single most important thing in this article: the clock runs from the date on the letter, not from the day you opened it. An envelope that sat in a pile for a month has eaten a month of your deadline.
What to do right now, if you're holding a letter
In short
If you disagree with what the IRS has assessed, the most important thing right now is not to miss your deadline. I work remotely with all 50 states. I'll help you obtain and read your transcripts (with your permission, through a Tax Information Authorization — Form 8821), identify exactly which letter you're holding and which clock it started, and help you gather documents and build your position on the disputed items. I'll prepare and file the returns you need, including for past years, if the dispute grew out of them. As an IRS Certifying Acceptance Agent, I can also help with an ITIN if you need one. And if your case calls for formal representation before the IRS or a Tax Court filing, I'll bring in an authorized representative (an EA, CPA, or attorney) or work alongside one.
**Leave a request or book a review of your situation at fintaxes.us** — we'll go step by step through what to do in your specific case.
*This is educational material, not individual tax advice. Your situation may differ; for your specific case, seek a personal review.*
