Got a 90-day letter from the IRS? You can answer it yourself.

That letter is called a Notice of Deficiency. It isn't a bill yet. You have 90 days to tell the U.S. Tax Court you disagree, and you don't need a lawyer to do it. We walk you through every step in plain English.

  • Filing costs $60, and the court can waive that fee.
  • Once you file, the IRS can't bill you for this amount while your case is open.
  • Most cases end with a phone call and an agreement, not a courtroom.

Find your last day to file

What happens, start to finish

  1. Step 1: Show us your letter

    Upload a photo. We find the deadline, the tax year, and each change the IRS made, then explain them in plain English.

  2. Step 2: Decide whether to fight it

    Sometimes the IRS is right. We show you what they changed and what kind of proof answers it, so the choice is yours.

  3. Step 3: Build your petition

    Answer simple questions. Stop any time and pick up where you left off. Your answers become the petition the court expects.

  4. Step 4: File it with the court

    You file on the Tax Court's website or by mail. We show you every screen and every click, and we remind you until it's done.

  5. Step 5: Get ready for the IRS call

    After you file, an IRS Appeals officer usually calls to work it out. We tell you what to send, what they'll ask, and how settlements work.

The Tax Court has a free form. Here's what we add.

What you needThe court's free form90 Day Letter
Explains what your letter saysNoYes, line by line
Helps you decide whether to fileNoYes
Wording for why you disagreeAn empty boxSimple questions that turn your facts into clear reasons
Deadline remindersNoText and email until you've filed
Help after you fileGeneral guides on the court's websiteStep-by-step help through your IRS Appeals call
Who files the petitionYou doYou do, with our click-by-click guide
CostFree, plus the $60 court fee$99, plus the $60 court fee

Is this right for your letter?

A good fit

  • Your letter says Notice of Deficiency, CP3219A, or Letter 3219.
  • The IRS says you owe $50,000 or less for each year.
  • It's about your personal tax return.

You need a lawyer instead

  • The IRS says you owe more than $50,000 for a year.
  • Your letter mentions fraud.
  • It's about a business return or payroll taxes.

Can't afford $99? Low Income Taxpayer Clinics represent people for free if you qualify. Find a clinic near you

Already past your 90 days? You may still be able to ask the IRS to take another look. Read our free guide to what comes next

$99, one time.

No subscription and no hourly bills. Reading your letter and finding your deadline is free. You pay when you're ready to build your petition.

Start my petition

The Tax Court's $60 filing fee is separate. You pay it to the court, and you can ask the court to waive it.

What you get

  • Your letter explained in plain English
  • A finished petition, ready to file
  • A click-by-click guide to filing online or by mail
  • Text and email reminders until you've filed
  • A checklist of the proof to send the IRS
  • What to expect on your IRS Appeals call

Built by an attorney admitted to the U.S. Tax Court with more than 30 years in practice.