Guides
How To File Your Tax Court Petition: A Step-by-Step Guide
A complete walkthrough of filing your Tax Court petition through DAWSON or by mail—forms, fees, deadlines, and mistakes to avoid.
Deadlines
Guides
What Happens After IRS Appeals Denies Your Case
Your IRS Appeals case was denied. Here's what the Notice of Deficiency means and how the 90-day clock to Tax Court works.
Guides
You Missed the 90-Day Deadline. Now What?
You received a Notice of Deficiency. The 90-day deadline passed. The IRS assessed the tax. Here's what you can still do.
Guides
You Just Got a 90-Day Letter From the IRS. Here's What It Means.
A 90-day letter is your ticket to Tax Court—and your deadline to use it. Here's what it means and what to do next.