The short version
If you live overseas, your passport is the document your whole life runs on. It is how you stay in your host country, how you open a bank account, how you board a plane, and how you get home. So this is the part of an IRS debt that frightens American expats the most: under a 2015 law, the IRS can certify a large unpaid tax debt to the State Department, and once it does, the State Department can deny your passport application or revoke the passport you already hold.
The law is Internal Revenue Code section 7345, added by the Fixing America’s Surface Transportation Act, usually just called the FAST Act. It applies to what the law calls a “seriously delinquent tax debt.” For 2026 that means legally enforceable federal tax debt of more than 66,000 dollars, an amount the law adjusts each year for inflation. This article explains what triggers a certification, what the State Department can and cannot do, what happens if you are already abroad, and the single most important point for anyone reading this: certification is reversible, and getting current is how you reverse it.
What the law actually says (primary authority first)
The controlling authority is Internal Revenue Code section 7345, the IRS passport program created by the FAST Act. The IRS describes a “seriously delinquent tax debt” as an unpaid, legally enforceable federal tax debt, including assessed penalties and interest, totaling more than the annual threshold. In the IRS’s own words, “Seriously delinquent tax debts are legally enforceable, unpaid federal tax debt (including assessed penalties and interest) totaling more than $66,000 (adjusted yearly for inflation).” The IRS adds that these debts “include U.S. individual income taxes, trust fund recovery penalties, business taxes for which taxpayers are personally liable for and other civil penalties.”
When the IRS certifies a debt as seriously delinquent, it tells the State Department, and it tells you. The IRS states that it “will send taxpayers a notice CP508C by regular mail to their last known address at the time it certifies seriously delinquent tax debt to the State Department.” That CP508C notice is the warning shot. If you live abroad and the IRS has an old address on file, you may not even see it, which is one reason expats can be caught off guard.
What the State Department does next is set out plainly. The IRS states that “Generally, the State Department will not issue passports to taxpayers after receiving their delinquent debt certification from the IRS,” and that “The State Department may also deny a taxpayer’s passport application or revoke their current passport.” For someone living in the United States, that mostly means no new passport and no renewal. For someone living overseas, the stakes are higher, because the passport is not a travel convenience, it is the legal basis for being where you are.
The law does carve out a narrow protection for people who are already abroad. The IRS states that “If taxpayers with certified tax debts are overseas, the State Department may issue a limited-validity passport allowing the taxpayer to return directly to the United States.” Read that carefully. It is not a normal passport. It is a one-way document whose only purpose is to bring you back to the United States. It does not keep your life abroad intact.
Just as important is what the law does not count. A seriously delinquent tax debt does not include every dollar you owe. Per the IRS, “Seriously delinquent tax debts do not include: Child support, Debts being timely paid through approved installment agreements, Debts being timely paid with an offer in compromise accepted by the IRS, Report of Foreign Bank and Financial Account (FBAR) penalties, Settlement agreements entered into with the Department of Justice, Debts for which a collection due process hearing regarding a levy to collect the debt has been timely requested. or Those suspended because of a request for innocent spouse relief.” That list is not trivia. It is the map out. Every item on it is a debt that is either being handled or under review, and that is exactly the status you want your debt to have.
How it works in practice
A certification is not a surprise levy. It follows a sequence, and at almost every point in that sequence there is something a taxpayer can do.
It starts with an assessed, legally enforceable debt that crosses the threshold, more than 66,000 dollars for 2026 counting tax, penalties, and interest together. The IRS certifies the debt to the State Department and mails the CP508C notice. From that moment, a new passport application or renewal is at risk, and an existing passport can be revoked.
Reversal is the other half of the program, and it is where the resolution work happens. The IRS states that it “will send taxpayers a notice CP508R at the time it reverses their certification,” and that “The IRS will reverse a certification when: The tax debt is fully satisfied or becomes legally unenforceable, The tax debt is no longer seriously delinquent, or The certification is erroneous.” The middle reason is the one most people can actually use. A debt stops being “seriously delinquent” the moment it lands in one of the protected categories above. So in practice there are a few honest ways to clear a certification:
- Pay the debt in full, which fully satisfies it.
- Get the balance under the threshold, so it no longer meets the definition.
- Enter an installment agreement and stay current on it, which moves the debt into the “being timely paid through approved installment agreements” carve-out.
- Have an offer in compromise accepted, which moves it into the accepted-OIC carve-out.
- Use another resolution that takes the debt out of “seriously delinquent” status, such as a timely requested collection due process hearing or pending innocent spouse relief.
Here is one short, realistic example. Picture an American who has lived in Portugal for several years and fell badly behind during a stretch of unfiled returns. Once everything is filed and assessed, the balance, with penalties and interest, comes to about 90,000 dollars. That is over the 2026 threshold, so the IRS certifies it and mails a CP508C. He learns about it when his passport renewal stalls. Rather than try to pay 90,000 dollars at once, he gets current on his filings and sets up an installment agreement he can actually afford, then keeps it in good standing. Because the debt is now being timely paid under an approved installment agreement, it is no longer a seriously delinquent tax debt, the IRS reverses the certification, and he receives a CP508R. The debt is not gone, but the passport problem is. He can renew.
That sequence is the whole point of this article. The certification is tied to the status of the debt, not to the size of it forever. Change the status, and you change the passport picture.
The numbers
| Metric | Figure | Source (year) |
|---|---|---|
| Seriously delinquent tax debt threshold, passport program | More than 66,000 USD (adjusted yearly for inflation) | IRS, IRC 7345 passport program (2026) |
| Statutory basis | IRC section 7345, added by the FAST Act (Pub. L. 114-94, Dec. 2015) | 26 U.S.C. 7345 source credit (LII) |
| Notice the IRS sends when it certifies a debt | CP508C, by regular mail to last known address | IRS, IRC 7345 passport program (2026) |
| Notice the IRS sends when it reverses certification | CP508R | IRS, IRC 7345 passport program (2026) |
| Passport available to a certified taxpayer who is overseas | Limited-validity passport for direct return to the United States only | IRS, IRC 7345 passport program (2026) |
| Debt being timely paid under an approved installment agreement | Not a seriously delinquent tax debt | IRS, IRC 7345 passport program (2026) |
| Debt being timely paid under an accepted offer in compromise | Not a seriously delinquent tax debt | IRS, IRC 7345 passport program (2026) |
| FBAR penalties | Not a seriously delinquent tax debt | IRS, IRC 7345 passport program (2026) |
What this means for you
A few practical points if you are abroad and behind.
First, watch the threshold and the mail. The trigger is a legally enforceable balance over 66,000 dollars counting tax, penalties, and interest together, and the first formal warning is the CP508C notice. If you have lived overseas for years, confirm the IRS has your current address, because a notice mailed to an old US address still counts as sent even if it never reaches you.
Second, the passport problem is downstream of the debt, so fix the debt and you fix the passport. You do not have to pay the full balance to clear a certification. Getting current on your filings and into a resolution the IRS recognizes, an installment agreement or an accepted offer in compromise being the most common, moves your debt out of “seriously delinquent” status, and that is what causes the reversal and the CP508R. If you are overseas with an urgent need to travel, that limited-validity, return-only passport is the fallback the law allows, not a substitute for resolving the underlying debt.
Third, the cleanup usually starts before the collection step. For many expats, the balance got large because returns went unfiled for years, not because of one big tax bill. Bringing those filings current, often through a streamlined path, is what produces an accurate number to resolve in the first place, and an accurate number is what an installment agreement or offer in compromise is built on. The filing comeback and the passport fix are the same project, done in order.
Every case turns on its own facts, and I do not promise specific outcomes. What I can do is read where you stand and lay out the path to get current and into an arrangement that takes the passport question off the table.
Related reading
Companion pieces in the same Comeback cluster of The American Expat Tax Lifecycle:
- Years Behind on Filing Abroad: The Streamlined Path Most Expats Don’t Know.
- Streamlined Foreign versus Domestic: the 330-day test that decides 0 or 5 percent.
- Willful or non-willful: the one question that controls your whole case.
For the underlying authority, see the inline link above to the IRS page on Revocation or Denial of Passport in Cases of Certain Unpaid Taxes (IRC 7345).
How Sheepdog Tax Resolution can help
I am a CPA and Certified Fraud Examiner, and this is a veteran-owned practice. If you are living abroad and worried that a tax debt could put your passport at risk, the first step is a straightforward review: whether your balance is near or over the certification threshold, whether the IRS has certified it already, and which resolution, an installment agreement, an offer in compromise, or getting current first through a streamlined filing, fits your situation and would move the debt out of “seriously delinquent” status.
Every case turns on its own facts, and I do not promise specific outcomes. What I offer is an honest reading of where you stand and a clear plan to get current and clear the certification. To start the review, reach me at noah@sheepdogtax.com.
Sources (primary authority first, then secondary commentary)
- 26 U.S.C. 7345, Revocation or denial of passport in case of certain tax delinquencies (added by Pub. L. 114-94, the FAST Act, Dec. 2015). https://www.law.cornell.edu/uscode/text/26/7345
- IRS, Revocation or Denial of Passport in Cases of Certain Unpaid Taxes (IRC 7345). https://www.irs.gov/businesses/small-businesses-self-employed/revocation-or-denial-of-passport-in-cases-of-certain-unpaid-taxes
- IRS, Streamlined Filing Compliance Procedures (program hub). https://www.irs.gov/individuals/international-taxpayers/streamlined-filing-compliance-procedures
- IRS, U.S. Taxpayers Residing Outside the United States (Streamlined Foreign Offshore Procedures). https://www.irs.gov/individuals/international-taxpayers/u-s-taxpayers-residing-outside-the-united-states
Prepared by Noah Green, CPA, CFE.
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