IRS NOTICE GUIDE

IRS CP3219A Notice: Statutory Notice of Deficiency

A careful guide to an IRS CP3219A statutory notice of deficiency, the non-extendable Tax Court date, response records, and professional coordination.

By Stefano Tavella, CPAPublished Updated 7 min read
Independent CPA firm. Tavella CPA Group is not part of, endorsed by, or affiliated with the IRS or U.S. Treasury.

DIRECT ANSWER

What to know first

A CP3219A is a statutory notice of deficiency explaining a proposed tax change and the right to challenge it in U.S. Tax Court. The IRS may continue working with you during the response period, but it cannot extend the deadline to petition Tax Court. Identify the exact last date printed on the notice and obtain appropriate tax or legal help promptly if you disagree.

Time-sensitive notice

High priority: the IRS states that the Tax Court petition deadline cannot be extended and a late petition cannot be considered. Do not rely on a call, document request, or ongoing IRS discussion to extend the printed date.

Separate the IRS response from the Tax Court deadline

The notice explains the proposed change, includes Form 5564, and identifies the date by which a Tax Court petition must be filed. A taxpayer may send information to the IRS and try to resolve the issue without petitioning, but that work does not extend the petition deadline.

Calendar the date exactly as printed and keep the full notice. If preserving court rights or evaluating litigation is important, consult a qualified tax attorney promptly. Tavella CPA Group does not provide legal services or represent clients in Tax Court litigation.

Review the proposed adjustment and the supporting information

  • Match each proposed item to the filed return and the third-party income documents identified by the IRS.
  • Request corrected information from a payer when the payer's report is wrong, while informing the IRS if the correction is pending.
  • Prepare a signed explanation and supporting documents for items you dispute, following the notice instructions.
  • If you agree, follow the notice instructions for Form 5564 and any required payment or amended-return work.

Coordinate accounting work and legal rights

A CPA can help reconstruct income, basis, expenses, credits, withholding, and tax calculations. Legal counsel can advise on Tax Court procedure, litigation strategy, and legal rights. When both are involved, use one reconciled set of facts, documents, and calculations so the positions do not conflict.

Keep proof of every submission and do not send originals unless specifically required. Continue monitoring mail and account activity for follow-up correspondence.

Records to gather before responding

  • The complete CP3219A, all enclosures, and the envelope showing delivery information
  • Any earlier CP2000, Letter 2030, response, or IRS correspondence about the same issue
  • The filed return, schedules, amendments, and proof of filing
  • Forms W-2, 1099, K-1, brokerage records, basis support, and corrected payer statements
  • Copies and delivery proof for information already sent to the IRS
  • A written chronology of contacts, submissions, and unresolved items

Where CPA help may be useful

A professional review can help organize the facts and calculations, but it cannot guarantee an IRS decision, penalty result, payment arrangement, appeal outcome, or litigation result. Depending on the agreed scope, support may include:

  • Reconcile the proposed changes to the return and source records
  • Prepare supported tax calculations and response workpapers
  • Organize records for an IRS response or for counsel's review
  • Communicate with the IRS when authorized and within the engagement scope
  • Coordinate factual and accounting support with the taxpayer's legal counsel

Avoid these common response risks

  • Do not miss the printed Tax Court petition date while waiting for the IRS to review records.
  • Do not treat this website, a consultation request, or CPA engagement as legal representation.
  • Do not sign Form 5564 or submit a petition without understanding the effect of the action.

General-information disclaimer

This guide provides general information and does not constitute tax or legal advice. IRS correspondence and available options depend on the notice, tax period, procedural stage, individual facts, and current law. A website inquiry does not create a CPA-client relationship.

For an approaching deadline, use the IRS contact information printed on the notice or seek qualified professional help immediately. Do not wait for a website response.

Stefano Tavella, CPA

ABOUT THE AUTHOR

Stefano Tavella, CPA

Stefano Tavella, CPA leads Tavella CPA Group, a cloud-based CPA firm serving individuals and small businesses with tax preparation, planning, notice assistance, and related services.

Official sources

Check the current IRS page and the instructions printed on the actual notice before acting.

Source review completed July 16, 2026.

RELATED IRS CORRESPONDENCE

Browse the IRS notice center

START WITH THE NOTICE NUMBER AND DATE

Get a clear scope before work begins.

Schedule a Free Call