CP3219A: Statutory Notice Of Deficiency
CP3219A proposes a tax change based on information that differs from your return. It is not a bill or audit. It also explains your opportunity to challenge the change in U.S. Tax Court.
Use the petition date on your actual notice. Working with the IRS does not extend the Tax Court filing deadline.
Understand The Notice. See The Bigger Picture.
The Guide connects compliance, planning and resolution.
Do This, In Order
- Compare the proposed changes with your return and income documents.
- If you agree, follow the notice instructions for Form 5564.
- If you disagree, promptly provide your explanation and supporting information to the IRS.
- If you choose to petition Tax Court, follow its filing instructions by the notice deadline.
Straight Answers
Does An IRS Reply Extend The Petition Deadline?
No. Sending information or discussing the proposal with the IRS does not extend it.
Is IRS Representation The Same As Tax Court Representation?
No. Court representation requires separate admission to practice before the U.S. Tax Court. IRS practice rights alone do not establish that admission.
Where This Sits In The Machine
Start with your actual notice and records. A response to a return correction, a refund application, and a collection notice are different tasks. Understanding the stage matters more than the single letter — read IRS Examination: The Mechanics of Defense for the map, and the IRS notice page for CP3219A (irs.gov).
What Representation Changes
An Enrolled Agent can review the notice and your records under a separate engagement, identify what needs an answer, and represent you within the scope of your authorization. Start with the free tax consultation so the firm understands the concern behind the documents.
Read The IRS Guidance For CP3219A · Source checked October 11, 2026.