IRS Notice of Deficiency (CP3219A): What to Do Next

Frequently Asked Questions

##### What happens if I don't respond to the Notice of Deficiency (CP3219A)?

##### Can I negotiate with the IRS after receiving a Notice of Deficiency?

##### Is it advisable to represent myself when disputing a Notice of Deficiency?

##### What if I missed the 90-day deadline on the Notice of Deficiency?

##### Can I set up a payment plan with the IRS for the additional taxes owed after a Notice of Deficiency?

Receiving an IRS Notice of Deficiency, officially known as CP3219A, can be a disconcerting experience. This notice is a formal communication from the Internal Revenue Service (IRS) indicating that they have determined a tax deficiency in your return, resulting in additional taxes owed. It's crucial to understand the implications of this notice and what steps you should take next to address it effectively. This comprehensive guide will walk you through the essential aspects of the IRS Notice of Deficiency and help you make informed decisions.

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This content was written and reviewed by the licensed tax attorneys at Victory Tax Lawyers, LLP. Our attorneys specialize in IRS tax relief and are licensed members of the California State Bar with a nationwide practice.

Last Reviewed: 2026  ·  Meet Our Attorneys →

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