Do I have to pay the tax before going to Tax Court?

No. The Tax Court is generally a prepayment forum: you can petition without paying, and you don't usually need to pay the disputed amount while the case is pending. Interest still runs on any tax you end up owing, so some people pay early to stop it.

How long does a Tax Court case take?

There is no set length. The IRS has 60 days to answer, a case may be set for trial as soon as six months after the answer, and the court sends the trial notice about five months before the trial date. After trial there is no fixed time for the opinion. Many cases end sooner through settlement.

Can a CPA or enrolled agent represent me in Tax Court?

Only if that individual has been admitted to practice before the Tax Court. Nonattorneys are admitted by passing the court's written examination, getting two sponsors and passing a character review. Representing you before the IRS under Form 2848 is a different authorization.

Will my case go to trial?

Probably not. The Tax Court says most cases are settled by mutual agreement without trial. If you settle before your trial date, the IRS prepares a stipulated decision and you don't need to appear.

Can I appeal a Tax Court decision?

In a regular case, yes: a notice of appeal to a U.S. Court of Appeals is due within 90 days after the decision is entered (IRC 7483). In a small tax case, neither you nor the IRS can appeal.

Is a Tax Court case public?

Yes. The Tax Court is a court of public record, so your petition and the IRS notice you attach become public. Your Social Security number goes only on Form 4, which is not part of the public file; black it out on everything else.

U.S. Tax Court: How a Tax Case Works, Step by Step

Last reviewed October 2026Reviewed by Safwan Al-Sayyad, Global Gate Tax and Accounting

Short answer

The U.S. Tax Court is an independent federal court where you can dispute an IRS determination before paying the tax. A case starts with a petition filed by the deadline on your notice, usually 90 days, plus a $60 (IRS.gov, 2026) fee that can be waived. The IRS files an answer, most cases settle, and the rest are tried before one judge.

Key takeaways

You can petition the Tax Court only after an IRS notice that gives you that right, most often a notice of deficiency after an audit.
The petition deadline is set by law (90 days, or 150 if the notice is addressed outside the U.S.) and the court cannot extend it.
You don’t usually have to pay the disputed tax while the case is pending, but interest keeps running on anything you end up owing.
Most cases settle without trial, often with IRS Appeals, and the settlement is entered as a stipulated decision.
You can represent yourself; anyone who represents you must be admitted to practice before the Tax Court, which is separate from IRS representation rights.

What the Tax Court is, and when you can go there

The United States Tax Court is a federal trial court that hears disputes between taxpayers and the IRS. Under IRC 7441 it is a court of record established under Article I of the Constitution, and it “is not an agency of, and shall be independent of, the executive branch.” The court itself says it “is not controlled by or connected with the Internal Revenue Service.” It has 19 judges (IRC 7443), is based in Washington, D.C., and its judges and special trial judges hold trials in 79 U.S. cities.

Its main advantage is timing. IRS Publication 5 calls the Tax Court “generally a ‘prepayment’ forum”: you can dispute the tax before you pay it. The other courts that hear federal tax cases, the U.S. District Courts and the U.S. Court of Federal Claims, generally take a case only after you have paid in full and filed a refund claim.

You can’t simply decide to sue. Publication 5 says you “generally cannot petition the U.S. Tax Court unless you have received a notice or determination letter that informs you that you have the right to do so.” The court’s petition form lists the IRS actions it reviews:

IRS notice	Typical situation	Petition deadline	Read next
Notice of deficiency (Letter 3219, Letter 531, CP3219A)	After an audit or an unanswered CP2000	90 days from mailing, or 150 days if addressed outside the U.S. (IRC 6213(a))	Notice of deficiency
Notice of Determination Concerning Collection Action	After a Collection Due Process hearing about a lien or levy	Within 30 days of mailing, per the Tax Court	Collection rights
Determination on innocent spouse relief	After a request for relief from joint liability (or if the IRS hasn’t decided within 6 months)	The period stated in the notice	Innocent spouse relief
Other notices	Interest abatement, worker classification, passport certification, whistleblower awards	The period stated in the notice	The notice itself

A CP2000 is not an audit and does not by itself let you petition. If you ignore it, the IRS may send a CP3219A, which is a notice of deficiency and starts the same court clock. Most taxpayers reach the Tax Court after an audit, so this guide focuses on deficiency cases.

How a Tax Court case unfolds

Every deficiency case follows the same basic path. The court publishes no average length for a case, so the timings below are the ones set by the court’s rules and its own guidance.

Stage	What happens	Timing
1. Petition	You file a petition explaining each IRS error, with the notice and the filing fee. The court assigns a docket number.	By the last day to petition on your notice
2. Answer	An attorney from the IRS Office of Chief Counsel files an Answer that admits or denies each statement in your petition and names the IRS attorney on your case.	Within 60 days after the petition is served (Tax Court Rule 36)
3. Informal exchange and settlement talks	An IRS employee contacts you to schedule a conference. You trade documents, agree on facts, and often talk settlement with the IRS Independent Office of Appeals.	Starts after the Answer
4. Notice of trial	The court sets the case for a trial session in or near the city you chose and sends a standing pretrial order with deadlines.	Generally about five months before the trial date; a case may be set for trial as soon as six months after the Answer
5. Pretrial deadlines	Stipulation of facts, pretrial memorandum, exhibits and any motions, as listed in your pretrial order.	In the court’s sample order: pretrial memorandum 21 days and stipulation of facts 14 days before the session
6. Calendar call and trial	On the first morning of the session the clerk calls each unsettled case. Trials are before one judge, without a jury.	The trial session
7. Opinion and decision	The judge issues an opinion (sometimes orally from the bench), then the court enters a decision.	No fixed time
8. After the decision	In a regular case either side may appeal. Once the decision is final, the IRS can assess any tax it upholds and bill you.	Notice of appeal within 90 days after the decision is entered (IRC 7483)

Your own pretrial order controls the exact dates for your case. Read it as soon as it arrives and put every deadline on a calendar.

The Tax Court guide, step by step

Each stage has its own page with the rules, the forms and what to do. Start with the one that matches where your case is now.

Need a date counted? The audit deadline calculator counts the 90-day and 150-day petition periods, including weekends and District of Columbia holidays.

Small case or regular case

When you file, you choose a procedure on line 4 of the petition. If the amount in dispute, including penalties and additions to tax, is $50,000 (IRS.gov, 2026) or less for each year, you can ask for the small tax case procedure. It is more informal, but the decision cannot be appealed by you or the IRS. If you check neither box, the court files the case as a regular case.

Feature	Small tax case (S)	Regular case
Who qualifies	Disputes within the small case limit	Any amount
Opinion	Summary opinion; cannot be relied on as precedent	Memorandum opinion or Tax Court opinion; can be cited
Appeal	None	To a U.S. Court of Appeals
Pretrial memorandum	Should be submitted	Must be filed

For who should and shouldn’t choose it, see the small tax case guide.

Most cases settle before trial

Filing a petition does not commit you to a courtroom. The Tax Court says that “most cases are settled by mutual agreement without trial.” Publication 5 says that if you did not appeal within the IRS before petitioning, “you will normally have an opportunity to attempt settlement with Appeals while you are waiting for your trial.” The court keeps scheduling the case for trial while you talk.

How settlement is written up. The IRS prepares a stipulated decision. You sign it, the IRS attorney signs it and sends it to the court, and the court enters it. If that happens before trial, you don’t have to appear.
A “no change” letter. If the IRS sends one after you petition, the court tells you to contact the IRS attorney or Appeals officer on your case; usually the IRS prepares a stipulated decision to match.
Talks never extend the deadline. If you think you already settled but the IRS mails a notice of deficiency anyway, the court advises filing the petition within the period in the notice to protect yourself.

Settlement steps and the paperwork are covered in how to settle a Tax Court case. If you are still deciding whether to fight at all, read agree with the audit or appeal.

What it costs, and what keeps running

Filing fee. The court’s fee is $60 (IRS.gov, 2026). It can be waived if you show you can’t pay, using the court’s Application for Waiver of Filing Fee, signed under penalty of perjury.
No payment required while the case is pending. The court says you “do not usually need to pay the amount in dispute” during the case, and in a deficiency case the IRS generally may not try to collect the disputed amount while the case is pending.
Interest keeps running. If you end up owing tax, interest generally runs from the original due date until paid, at the federal short-term rate plus 3 percentage points, reset quarterly (7% (IRS.gov, Jul-Dec 2026) this quarter). You may pay while the case is pending to stop interest on what you pay.
Frivolous cases are penalized. Publication 5 warns that the court can impose a penalty if a case is filed mainly for delay or on a frivolous or groundless position.
Costs if you win. In limited cases a prevailing taxpayer can recover fees and costs from the IRS. The court says you generally do not qualify if the IRS shows its position was substantially justified.

Who can represent you in Tax Court

You can represent yourself. Tax Court Rule 24(b) lets an individual appear on their own behalf, and the court’s guidance says you may file a petition and present your case to a judge without a representative. You still have to follow the court’s rules and orders. The IRS side is always handled by an attorney from the IRS Office of Chief Counsel.

If someone else appears for you, that person must be admitted to practice before the Tax Court. This is a separate admission from the right to represent taxpayers before the IRS:

Who	How they are admitted to the Tax Court	Source
Attorneys	Apply to the court with a fee and a current certificate of good standing from a state court, the District of Columbia or the U.S. Supreme Court	Rule 200(a)(2)
Nonattorneys, including CPAs and enrolled agents	Pass the court’s written nonattorney examination (held at least every 2 years), be sponsored by two people already admitted, and pass a character and fitness review	Rule 200(a)(3), (c); Tax Court practitioners page
Firms and corporations	Cannot be admitted; only individuals are	Rule 200(f)

IRC 7452 says no qualified person “shall be denied admission to practice before the Tax Court because of his failure to be a member of any profession or calling,” which is why the nonattorney exam exists. A Form 2848 authorizes an individual to represent you before the IRS; it is not admission to the court. Before you hire anyone for a court case, ask which individual will sign the petition and appear for you, and whether that person has a Tax Court bar number. All representatives in the Tax Court are subject to the American Bar Association’s Model Rules of Professional Conduct, the court says. To compare credentials more generally, see enrolled agent, CPA or tax attorney.

Free help, and when to get a professional

The Tax Court is built to be usable without a lawyer, and many people handle small, well-documented cases on their own. Free help exists:

Tax clinics. The court runs a clinical program with clinics across the country, sends clinic information when you file and again with the notice of trial, and lists clinics and pro bono programs by city. Low Income Taxpayer Clinics can represent eligible taxpayers for free or a small fee. Clinics have income limits.
Calendar call programs. In many trial cities, volunteer practitioners help unrepresented low-income taxpayers at the trial session.
The clerk’s office. For procedural questions: help@ustaxcourt.gov or 202-521-0700.
Taxpayer Advocate Service. For problems with IRS processes rather than the court case: 877-777-4778 (IRS.gov, 2026).

A professional earns their fee when the amount is large, several years or business income are involved, fraud penalties are proposed, or the legal question is unsettled and you may want to appeal. Global Gate Tax Relief offers a free consultation: we review your notice and IRS transcripts, tell you plainly whether you can handle it yourself, and if we take the case we quote a flat fee upfront. We don’t promise results. Ask us, as you would any firm, who would appear for you in court. Request a free case review or call 1-877-800-8180.

Frequently asked questions

No. IRC 7441 says the Tax Court is independent of the executive branch, and the court says it is not controlled by or connected with the IRS. The IRS is the other party in your case, represented by an attorney from its Office of Chief Counsel.

Sources

We check every figure against IRS.gov and log changes on the key figures page.

Want a professional to look at your audit?

Free consultation, no obligation. If we take your case, the flat fee is quoted upfront before any work begins. If you can handle it yourself through IRS.gov, we will tell you. No outcome is guaranteed.

Request a free consultation Call 1-877-800-8180

This page is general information about IRS rules, not tax or legal advice for your situation. IRS figures change; each one links to its official source and the date we last checked it.

U.S. Tax Court for Taxpayers