No response to CP2000
The IRS did not receive a response or did not receive it before the case moved forward.
IRS Notice CP3219A • Notice of Deficiency
Received an IRS CP3219A notice?
The IRS is proposing additional tax after comparing your return with information reported by employers, banks, brokers, or other third parties.
This is the 90-day letter. It gives you the right to challenge the proposed deficiency in the United States Tax Court by the exact deadline printed on the notice.
There is no fee to book the call. No documents are required when booking. Have the complete CP3219A and earlier IRS correspondence available during your call.
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Baytown-Based
Virtual Nationwide Service
What CP3219A Means
The IRS has issued a legal Notice of Deficiency
CP3219A is not a bill or a new audit. It states the IRS determination and explains the right to petition the Tax Court before the proposed tax is assessed.
The amount on Form 5564 may differ from an earlier CP2000 because not every issue can be challenged in Tax Court.
Why It Was Sent
Common issues behind CP3219A
Response not accepted
The records or explanation did not resolve all proposed changes.
Missing income
A W-2, 1099, K-1, retirement distribution, or other item was not reported as the IRS expected.
Missing cost basis
The IRS used gross sales proceeds because basis information was absent or incomplete.
Related expenses omitted
Business expenses or other tax treatment may not have been considered in the proposed amount.
Incorrect payer record
An information return may be duplicated, inaccurate, or connected to identity theft.
Response Choices
Choose based on the facts and the deadline
If you agree
Follow the notice instructions and return Form 5564. Review the tax, penalties, interest, and payment options before signing.
If you disagree
Send a signed explanation and supporting records to the IRS as soon as possible. Separately evaluate whether a timely Tax Court petition is needed.
If the deadline is close
Do not assume the IRS will finish reviewing your response first. A petition may be necessary to preserve Tax Court review.
Records To Review
Have these available for the call
- Every page of CP3219A and Form 5564
- The earlier CP2000 and all attachments
- Copies of prior responses and proof of delivery
- The filed federal return and schedules
- W-2s, 1099s, K-1s, and corrected forms
- Broker statements and cost-basis records
- Retirement rollover or exception records
- Business income and expense records
- Calculations for disputed tax and penalties
- Identity-theft or payer correspondence, if applicable
Protect the Deadline
An IRS response and a Tax Court petition are different actions
Sending records asks the IRS to reconsider the proposed adjustment. Filing a petition asks the Tax Court to review the deficiency. An IRS response does not substitute for a petition and does not extend the petition deadline.
Form 1040-X
Use an amended return only when appropriate
If only the proposed change is correct
Follow the agreement instructions on CP3219A and Form 5564. Do not file an amended return solely because the IRS proposed a change unless the notice instructions call for one.
If other corrections are needed
The IRS instructs taxpayers to complete Form 1040-X, write “CP3219A” at the top, and submit it with Form 5564 using a reply option shown on the notice.
What Happens Next
The result depends on what you do before the deadline
IRS resolves the dispute
The IRS may accept some or all of the information and revise or remove the proposed deficiency.
Tax Court petition filed
A timely petition preserves the right to have the proposed deficiency reviewed before assessment.
No timely petition
The IRS may assess the proposed tax and send a bill after the petition period expires.
Frequently Asked Questions
IRS CP3219A questions
Is CP3219A a bill?
No. It is a proposed deficiency and a legal notice of Tax Court rights. A bill generally follows if the tax is assessed.
How is it different from CP2000?
CP2000 proposes changes and requests a response. CP3219A is the later statutory Notice of Deficiency with a strict Tax Court petition deadline.
Can the IRS extend the 90 days?
No. Follow the exact petition deadline printed on the notice.
Can I still send records to the IRS?
Yes. Send them promptly, but do not treat that response as an extension or replacement for a Tax Court petition.
Is there a fee to book?
No. There is no fee to book the call. Professional work requires a separate written engagement.
Can TaxDecoders help?
Representation options may be discussed after the notice, deadline, return, earlier correspondence, and disputed items are reviewed.
Verified Resources
Official IRS information
This page was reviewed on July 27, 2026. Always follow the date and instructions printed on your actual notice.
Understanding CP3219A
Filing a Tax Court petition
Taxpayer Advocate roadmap
Do not lose the right to challenge the proposed tax.
Book a call with TaxDecoders. Have the complete CP3219A, earlier CP2000, filed return, and prior responses available during the call.
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