Notice CP508C: IRS Passport Certification and How To Undo It

Notice CP508C says the IRS has certified your "seriously delinquent tax debt" to the U.S. Department of State—and that your passport application can be denied, your renewal refused, or your current passport revoked. Before anything else, be clear about what has and has not happened.

The IRS has not taken your passport, and it cannot. In the IRS's own words, the State Department "has the sole authority to issue, limit, deny or revoke passports." What certification does is flag you: after receiving it, the State Department generally will not issue you a new passport or renew your existing one, and it may revoke the one you hold.

Until it acts, you can keep using a valid passport—and the State Department will notify you in writing if it denies an application or revokes your passport. If you are overseas, it may issue a limited-validity passport permitting direct return travel to the United States.

The certification is also reversible, several categories of taxpayers cannot be certified at all, and if the IRS got it wrong, IRC § 7345 gives you a stand-alone route to the United States Tax Court—one of the few IRS actions you can petition about without a Notice of Deficiency.

What Counts as Seriously Delinquent Tax Debt

Congress created this program in 2015 in the FAST Act, a highway-funding law, and wrote a precise definition into § 7345(b). A "seriously delinquent tax debt" is an unpaid, legally enforceable federal tax liability of an individual that meets all three of these conditions:

1. It has been assessed. The amount is formally on your account, not just proposed in an audit report. A deficiency you have timely petitioned to the Tax Court generally cannot be assessed while your case is pending—§ 6213 blocks it—so that year's disputed amount cannot be part of a certified debt.
2. It exceeds the threshold—$50,000 in the statute, adjusted yearly for inflation. For 2026 the figure is $66,000, and the total includes assessed penalties and interest, not just tax.
3. Collection has escalated. Either the IRS has filed a Notice of Federal Tax Lien under § 6323 and your Collection Due Process rights for that lien filing under § 6320 have been exhausted or have lapsed, or the IRS has issued a levy under § 6331.

That third condition matters: simply owing a large balance does not trigger certification—the IRS must already be deep into enforced collection. If your CDP rights on the lien filing are still open or a hearing is pending, the debt does not yet qualify under the lien prong—but watch the other prong: a levy the IRS has already issued satisfies the condition on its own. Our guide to federal tax liens explains the lien-filing process that usually comes first.

The threshold by year, from the IRS's passport certification page:

The debts that count include U.S. individual income taxes, trust fund recovery penalties (the personal penalty for a business's unpaid withheld payroll taxes), business taxes for which you are personally liable, and other civil penalties. And because interest keeps accruing on an unpaid balance, a debt below the threshold today can grow across it. Start by verifying what the IRS says you owe—Understanding Your IRS Balance explains how tax, penalties, and interest stack up, and your IRS transcripts show what was assessed and when.

Debts That Cannot Be Certified

Section 7345(b)(2) carves out two situations where a debt is not "seriously delinquent" no matter how large it is:

• You are paying it under an approved arrangement. A debt being paid timely under an installment agreement (§ 6159) or an accepted offer in compromise (§ 7122)—a settlement for less than the full balance—is excluded.
• Collection is suspended by your own timely action. That covers a debt with a requested or pending CDP hearing on a levy under § 6330—the request window is only 30 days—and a debt suspended because you elected or requested innocent spouse relief under § 6015.

The IRS's certification page adds a short list of debts it never certifies at all: child support, FBAR penalties (the foreign bank account reporting penalty, which is not a tax), and settlement agreements with the Department of Justice.

When the IRS Holds Off Even Though It Could Certify

Beyond the statutory carve-outs, the IRS says it will not certify a taxpayer who:

• Is in currently not collectible (CNC) hardship status
• Has an installment agreement or offer in compromise request pending—you do not need the arrangement finalized, just properly submitted
• Has been identified as a victim of tax-related identity theft (if that is your situation and the IRS has not flagged it, report it with Form 14039)
• Is in bankruptcy
• Is located in a federally declared disaster area
• Has an IRS-accepted adjustment that will fully satisfy the debt

Certification is also postponed for taxpayers serving in a designated combat zone or participating in a contingency operation.

If any item on these two lists applied when the IRS certified—say, a pending offer in compromise, or CNC status—the certification should not have happened, and you have two ways to fix it: the phone number on your notice, and the Tax Court. The court reviews whether the certification was erroneous under the statute, so it is the strongest fit when one of the statutory carve-outs applied; the discretionary list is mainly a phone-route fix. Both routes are covered below.

Two Notice Traps To Know

CP508C comes by regular mail, not certified mail, sent to your last known address. If you have moved and never told the IRS, you may not learn about the certification until the State Department denies an application. And if a plain envelope threatening your passport reads like a scam, verify it yourself: the certified balance will show in your IRS individual online account and on your transcripts.

Your representative is not told. The IRS states plainly that it will not send a copy of the CP508C to your power of attorney. This notice goes only to you—do not assume your representative has seen it.

How To Get Decertified

Under § 7345(c), the IRS must reverse the certification—and tell the State Department—when the certification was erroneous, the debt is fully satisfied or becomes legally unenforceable (for instance, the IRS's collection window—generally 10 years from assessment—has fully expired; see Understanding IRS Statutes of Limitations), or the debt stops being seriously delinquent under one of the statutory exceptions. When that happens, you get Notice CP508R confirming the reversal.

The statute puts clocks on the IRS. After you enter an installment agreement or the IRS accepts an offer in compromise, the reversal notification is due within 30 days—the same deadline that applies after an innocent spouse election or request. A fully paid or legally unenforceable debt runs on the lien-release deadline of § 6325(a) instead, and an erroneous certification must be fixed "as soon as practicable" after the error is found. The IRS puts it more simply: once you resolve the problem, it reverses the certification and notifies the State Department within 30 days.

The practical routes, roughly in order of speed:

• Pay the debt in full. A current-year refund large enough to cover the balance also works—the IRS applies the refund and treats the account as paid once the return and refund are processed.
• Enter an installment agreement. Usually the fastest realistic fix if you cannot pay in full: a pending request blocks certification, and an approved agreement being paid timely requires reversal. The protection lasts only as long as the payments do—fall behind and the debt can become certifiable again.
• Submit an offer in compromise. Slower to process, but a pending offer blocks certification and an accepted one being paid timely reverses it.
• Request CNC hardship status if you genuinely cannot pay. The IRS lists CNC accounts among those it will not certify and among certified debts that are no longer seriously delinquent.
• Pursue innocent spouse relief if the debt stems from a joint return and the facts fit—the request itself suspends the debt from certification.

For a side-by-side look at these options, see How To Resolve Your IRS Tax Debt.

What Does Not Work

Paying the balance down below the threshold does not reverse a certification—the IRS is explicit that partial payments dropping the debt under the threshold, or partial expiration of the collection statute, do not qualify. You must fully resolve all of the certified tax debt. Likewise, requesting a CDP hearing or innocent spouse relief on some other debt that was never certified does nothing for the certified one.

Certified by Mistake? The Tax Court Route

Congress built a judicial check into the statute itself. Under § 7345(e), once the IRS notifies you of the certification, you can bring a civil action "to determine whether the certification was erroneous or whether the Commissioner has failed to reverse the certification." Section 7345(d) requires the CP508C to describe this right "in simple and nontechnical terms" on the notice itself.

You have a choice of two forums: a U.S. district court (suing the United States) or the U.S. Tax Court (suing the Commissioner). Whichever court first acquires jurisdiction gets sole jurisdiction, so you pick one, not both. For most self-represented taxpayers the Tax Court is the natural pick: the filing fee is $60 rather than several hundred dollars, the court is used to petitioners without lawyers, and everything files electronically through DAWSON—Tax Court vs. District Court vs. Court of Federal Claims compares the forums. Two features make this action unusually accessible:

• No Notice of Deficiency needed. This is its own case type with its own petition and its own Tax Court rules.
• No exhaustion requirement. The IRS confirms you do not have to file an administrative claim or contact the IRS about the error before suing.

The action fits two situations: the certification was wrong from the start (the debt is not yours, it was below the threshold, a statutory exception applied, your CDP rights had not lapsed), or the IRS failed to reverse when the law required it—for example, you entered an installment agreement months ago and no CP508R ever came.

Filing the Petition

Tax Court Rules 350 through 354 (Title XXXIV of the Tax Court Rules) govern these cases. Under Rule 351, the petition is titled "Petition for Certification or Failure to Reverse Certification Action Under Code Section 7345(e)" and must contain:

• Your name, state of legal residence, and mailing address as of the filing date
• The date of the certification notice (your CP508C)
• Lettered statements explaining why you disagree with the certification or the failure to reverse it
• Lettered statements of the facts supporting your position
• The relief you are asking for
• Your signature, mailing address, and telephone number
• A copy of the certification notice, attached

The filing fee is $60, and Rule 351(c) lets the Court waive it if you show by an affidavit or declaration containing specific financial information that you cannot pay. You file a request for place of trial along with the petition (Rule 352), and you can file everything electronically through DAWSON, the same portal used for deficiency cases. The IRS then answers as it would in any other case (Rule 353); What Happens After You File Your Tax Court Petition covers the rhythm from there. General mechanics are in How To File Your Tax Court Petition.

One thing the statute does not contain is a filing deadline. Unlike a Notice of Deficiency with its 90-day clock, § 7345 sets no explicit time limit for bringing this action. Do not treat that as an invitation to wait: the certification stays in force while you do, and prompt filing avoids needless fights over stale claims.

What the Court Can and Cannot Do

Go in with accurate expectations, because the remedy is narrow. If the court finds the certification erroneous, § 7345(e)(2) says it "may order the Secretary to notify the Secretary of State that such certification was erroneous." That is the win: the flag comes off at the State Department.

What the court cannot do in this action, per the statute and the IRS's own description: release a lien or levy, award money damages, or make the State Department issue you a passport—the State Department is held harmless under the law and cannot be sued over the certification. This is also not a do-over on whether you owe the tax; the question is whether the certification was proper.

Filing also pauses nothing. A deficiency petition freezes assessment under § 6213; a certification petition has no equivalent—the flag stays at the State Department while your case is pending, and an application can still be denied in the meantime. If you need a passport soon, pursue a payment arrangement or expedited decertification in parallel rather than relying on the lawsuit alone.

That narrow remedy shapes the strategy. If the debt is real and the IRS followed the rules, litigation is the slow road—an installment agreement can trigger decertification within 30 days, while a court case must be filed, answered, and decided. The Tax Court route earns its keep when the certification is genuinely erroneous or the IRS is sitting on a reversal it already owes you.

If You Need To Travel Soon

Certification does not have to wreck near-term travel plans, but you need to move quickly.

If you apply or renew while certified, the State Department will send you a letter and hold your application open for 90 days from that letter's date so you can pay in full, enter a satisfactory payment arrangement, or fix an erroneous certification. Miss the window and the application is denied and closed—you would have to apply all over again.

If you have international travel within 45 days (or live abroad), tell the IRS—and note the counterintuitive first step: expedited handling requires an open passport application or renewal, so if you do not have one, apply anyway and let the State Department's letter arrive. Then call the IRS with proof of travel—a flight itinerary, hotel reservation, or similar document showing your name, location, and dates—plus a copy of the State Department's letter from the last 90 days. The IRS can expedite the decertification, generally cutting the standard 30-day processing to 9 to 16 days.

If you get Letter 6152, act on it. Before the IRS refers an existing passport to the State Department for revocation, it sends Letter 6152 asking you to call and resolve the account. That letter is the warning shot before the most serious step this program takes—and revocation referrals are not automatic; the IRS decides them on the facts and circumstances of each case.

For questions or disagreements, the CP508C phone lines are 855-519-4965 (or 267-941-1004 for international callers). If you have already paid the debt, send proof of payment to the IRS address at the top of your notice—the IRS specifically warns against sending it to the Tax Court's address—or submit it through the IRS Document Upload Tool for faster processing.

If the phone line gets you nowhere and travel or a job is on the line, the Taxpayer Advocate Service can intervene—ask using Form 911. And if your job itself depends on a passport, know that there is no occupational exception: the IRS says the only way back is full payment or an alternative payment arrangement.

What To Do Now

1. Verify the numbers. Pull your account transcripts and confirm what was assessed, for which years, and whether the total genuinely exceeds the threshold.
2. Check both exception lists. Pending offer? CNC status? Open CDP rights on the lien? Identity theft? If any applied at certification, the certification is vulnerable.
3. Pick a resolution route if the debt is real—installment agreement, offer in compromise, CNC, or full payment. The reversal clock is 30 days once the arrangement is in place.
4. Traveling soon? Make sure you have an open passport application, gather your proof of travel and the State Department letter, and call the CP508C line to request expedited decertification. Escalate to the Taxpayer Advocate Service (Form 911) if nothing moves.
5. Certified in error? Call the CP508C number, and consider a § 7345(e) petition—especially if you have already told the IRS and nothing has moved.
6. Keep your address current with the IRS—file Form 8822, or let your next filed return update it. The CP508C goes by regular mail to your last known address, and the CP508R reversal notice is likewise sent to you.

Get Help

A certified debt usually involves lien filings, levy notices, and collection alternatives all at once—territory where representation pays off. If your income is at or below 250% of the poverty line (about $39,900 for a one-person household, plus $14,200 for each additional member), a Low Income Taxpayer Clinic may represent you free of charge—see that guide for the full eligibility rules, including the $50,000 dispute limit. Not sure whether you need representation at all? When To Get Professional Help With Your Tax Dispute walks through the signs. And remember the trap above: your representative will not receive a copy of your CP508C, so bring it to them yourself.

Resources

Statute and rules:

• IRC § 7345—Revocation or denial of passport in case of certain tax delinquencies
• U.S. Tax Court Rules of Practice and Procedure—Title XXXIV (Rules 350-354) governs certification actions
• Rule 350—General (applicability and jurisdiction)
• Rule 351—Commencement of certification action (petition contents, fee, and waiver)
• Rule 352—Request for place of trial
• Rule 353—Other pleadings
• Rule 354—Joinder of issue in certification action
• DAWSON e-filing portal

IRS guidance:

• Revocation or denial of passport in cases of certain unpaid taxes—thresholds, exceptions, expedited decertification
• Understanding your CP508C notice

Companion articles on TaxCourtHelp:

• Federal Tax Liens and IRS Levies—the two certification triggers
• Collection Due Process Hearings—the hearing rights that block certification while pending
• How To Set Up an IRS Installment Agreement, How To Apply for an Offer in Compromise, and How To Request Currently Not Collectible (CNC) Status—the main decertification paths
• How To Request Innocent Spouse Relief
• How To Resolve Your IRS Tax Debt—comparing the options
• Understanding Your IRS Balance and How To Get and Read Your IRS Transcripts—verifying what you owe
• Common IRS Notices and Letters—decoding CP508C, Letter 6152, and the rest of your mail
• How To File Your Tax Court Petition—general filing mechanics
• Tax Court vs. District Court vs. Court of Federal Claims—choosing between the two § 7345(e) forums
• How To Find and Use a Low Income Taxpayer Clinic (LITC)

This article is for informational purposes only and does not constitute legal or tax advice. For advice specific to your situation, consult a qualified tax professional or attorney.