Notice Type
A CP3219A notice, also called a Notice of Deficiency, is a formal legal notice sent after earlier notices about a proposed change, such as a CP2000, went unresolved. It gives you the right to petition the U.S. Tax Court if you disagree, but only within a strict 90-day window. This is one of the more serious notices the IRS sends, and understanding what led to it is often where our $45 notice review can help as a starting point, though a CP3219A generally calls for additional professional guidance given the legal deadline involved.
Before You Respond
A CP3219A means the IRS is finalizing a proposed increase to your tax unless you petition the Tax Court, so the deadline is the most important detail on the notice. Check the date printed on your actual notice — a CP3219A states the exact date by which a Tax Court petition must be filed, and that date is fixed and generally cannot be extended. If no petition is filed by that date, the proposed amount is assessed and becomes collectible, and the option to dispute it in Tax Court is lost. Acting well before that date, rather than close to it, is what preserves your options.
Know Before You Act
Before deciding how to respond, it helps to understand what the notice is proposing and why, and whether that matches your own records or an earlier notice you may have already responded to. The IRS's proposed changes may be accurate. But there can also be a response you already sent that wasn't reflected, information that was never fully considered, or a disagreement worth raising in Tax Court. Given the strict deadline involved, understanding your situation quickly is what determines the right next step.
Start with a secure notice upload and a free IRS notice summary. If you want organized next steps, optional $45 Review & Guidance is a one-time purchase with no subscription. It may include an Action Plan, records to gather, response options, and case questions. When the information and supporting documents provided support a written IRS response, you can use the action steps provided to prepare it yourself or unlock the option for Think Twice Tax to draft a personalized response letter for you.