IRS CP508C: passport certification notice

Under Internal Revenue Code section 7345, the IRS can certify a "seriously delinquent tax debt" — a legally enforceable unpaid federal balance (including penalties and interest) above an inflation-adjusted threshold the IRS publishes each year, where a lien has been filed and CDP rights exhausted or lapsed, or a levy issued. CP508C confirms the certification has been sent to the State Department. Check IRS.gov for the current threshold.

Passport certification is a late-stage collection tool. It only applies once a debt is "seriously delinquent" under Internal Revenue Code section 7345 — generally after a lien has been filed and CDP rights exhausted or lapsed, or after a levy. It usually follows the balance-due notices (CP14 through CP504) and a final notice of intent to levy.

Scam letters copy IRS formatting, so confirm a CP508C before acting on it. Log in to your IRS Online Account — most notices, balances and payment history appear there — or request an account transcript. A genuine notice shows a notice or letter number (usually in the top or bottom right corner), the tax year, and explains your rights. If you call, use a number you find on IRS.gov, not a number printed only on a letter you're unsure about. The IRS doesn't demand payment by gift card, prepaid debit card, cryptocurrency or wire to an individual, and it doesn't threaten immediate arrest.

There's no fixed response window, but the State Department generally holds a passport application for 90 days to let you resolve the debt, so act quickly if you plan to travel.

If you don't believe you owe the debt, or the certification is wrong, call the number on the notice. Certification must be reversed when the debt is paid in full or becomes legally unenforceable, and the IRS doesn't certify (or reverses certification) for debts in a pending installment agreement or accepted offer, a pending CDP hearing, innocent spouse claim, or for taxpayers in a federally declared disaster area or bankruptcy. You can also petition the U.S. Tax Court or a district court to determine whether certification was erroneous.

The State Department may deny new passport applications and renewals and can revoke or limit an existing passport. Certification stays in place until the debt is resolved or becomes unenforceable.

If you owe and can't pay in full, you have options:

• Pay in full online through IRS Direct Pay or your Online Account to stop further interest and penalties.
• Short-term plan of up to 180 days, with no setup fee.
• **Installment agreement** — individuals who owe $50,000 or less in combined tax, penalties and interest can usually apply online. Larger balances generally need a financial statement (Form 433-F or 433-A).
• **Currently Not Collectible** status if paying would prevent you from covering basic living expenses.
• **Offer in Compromise** only if you can't realistically pay the full amount before the collection statute expires — most applicants don't qualify.
• **Penalty relief**, including first-time abatement, which can remove failure-to-file and failure-to-pay penalties.

Interest (currently 7% a year, set quarterly) continues on any unpaid balance.

You don't need to pay anyone to respond to a CP508C. The Taxpayer Advocate Service, an independent organization inside the IRS, helps people whose problems aren't being resolved through normal channels or who face significant hardship. Low Income Taxpayer Clinics offer free or low-cost representation to eligible taxpayers, including in disputes with the IRS. Volunteer programs such as VITA can help prepare missing returns. If you do hire paid help, choose a credentialed professional — a CPA, enrolled agent or attorney — who can represent you before the IRS with Form 2848, and be wary of anyone who guarantees an outcome, demands large upfront fees, or tells you to stop communicating with the IRS. See red flags to watch for.

1. Read the whole notice and note the date, tax year and any deadline.
2. Verify it in your IRS Online Account or with a transcript.
3. Gather records — the return, payment proof and any documents the notice mentions.
4. Decide: agree and pay/verify, dispute with documentation, or request the hearing or appeal the notice describes.
5. Respond in writing or by the method shown, before the deadline, and keep copies and proof of mailing.
6. Get help if needed. You can authorize a CPA, enrolled agent or attorney with Form 2848, and the Taxpayer Advocate Service or a Low Income Taxpayer Clinic may help for free.

Want to see which relief options fit your situation? The free calculator on this page takes about a minute. It's an educational estimate, not a guarantee.