IRS CP508C: Tax Debt Certification and Your Passport.

CP508C means the IRS has certified seriously delinquent federal tax debt to the U.S. Department of State. That certification affects passport applications and renewals and can put an existing passport at risk. Read both the IRS notice and any State Department correspondence.

Follow the dates and instructions on your actual IRS notice and any State Department correspondence. Act promptly if travel is affected.

Do This, in Order

1. Confirm the exact notice code, certified debt, tax periods, and account records.
2. Read any separate State Department correspondence about your passport or application.
3. If you disagree or already resolved the debt, contact the IRS using the number on your notice and retain supporting records.
4. Review whether payment, an approved arrangement, or another applicable exclusion can support reversal of the certification.
5. Confirm the IRS has reversed the certification when appropriate; do not assume a request or application has already restored passport access.

Straight Answers

Does the IRS Notice Mean My Passport Was Already Revoked?

The certification does not mean the passport was already revoked. Passport action is handled by the State Department. Check its correspondence before relying on an existing passport for travel.

What Can Lead to Reversal of the Certification?

IRS guidance lists full payment, legally unenforceable debt, debt that no longer qualifies as seriously delinquent, and erroneous certification. Approved arrangements and other exclusions depend on the account’s facts.

Can I Rely on A Dollar Threshold From an Older Article?

The threshold is adjusted for inflation, and debt amount alone does not decide eligibility. Use current IRS guidance and review the certification against your own records.

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 Collections: The Enforcement Arm for the map, and the letter-by-letter anatomy in the firm's notice decoder for CP508.

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 CP508C Guidance · Source checked October 11, 2026.