Can the IRS take my passport if I live in the UK?

It can cause your US passport to be denied, and in some cases revoked or limited, but only through the State Department and only if your account meets every element of section 7345. There must be an assessed, legally enforceable federal tax debt above the inflation-adjusted threshold, which the IRS states as more than $66,000 for 2026, and either a filed Notice of Federal Tax Lien with your administrative remedies lapsed or exhausted, or a levy issued. Living in Britain does not exempt you, but it does qualify you for expedited handling if a certification has to be reversed.

Can I lose my US passport because of unfiled returns?

Not on the unfiled returns alone. Section 7345 requires a liability that has been assessed, and a return you never filed produces no assessment and therefore nothing the IRS can certify. The risk arises when the IRS prepares a substitute for return under section 6020(b) and assesses the resulting deficiency, which is computed without your foreign tax credits, without cost basis and without favourable filing status. That assessed figure can be far larger than your genuine liability, which is why filing your own returns first is the safer route rather than the riskier one.

Does an installment agreement stop passport certification?

Yes, provided it has been accepted by the IRS and you are paying it timely. A debt being paid timely under an accepted installment agreement is a statutory exclusion from certification, as is a debt being paid timely under an accepted offer in compromise. A pending installment agreement or pending offer also appears on the IRS list of discretionary exclusions. The protection is conditional, though. If the agreement defaults, the exclusion falls away and the account can become certifiable again on the same underlying facts.

How quickly can the IRS reverse a certification once I have resolved the debt?

The IRS states that it will reverse the certification within 30 days of the debt being resolved and notify the State Department, sending you Notice CP508R to confirm. If you have international travel booked within the next 45 days, or you live abroad, the IRS operates an expedited decertification procedure that it states can generally shorten the 30-day processing time to between 9 and 16 days. You will be asked for proof of travel and a copy of the letter the State Department sent you.

Are FBAR penalties counted toward the passport certification threshold?

No. FBAR penalties are imposed under Title 31 through the Bank Secrecy Act reporting regime rather than under the Internal Revenue Code, and the IRS states expressly that they are not certified as seriously delinquent tax debt. Child support is likewise excluded. This matters for Americans in Britain, where an FBAR penalty is often the single largest figure on the account. The penalty remains fully collectible by other means, but it should not be included when you are working out whether your assessed tax debt crosses the certification threshold.

Passport Revocation: US UK Dual Nationals and IRS Debt

Q: Can a dual national travel on a British passport if the US passport is denied?

For travel that does not involve the United States, yes, and certification has no effect on a British passport at all. For entry to the United States, no. US law generally requires a US citizen to enter and depart the United States on a US passport, a US citizen is not eligible for a US visa, and a foreign passport cannot be used to obtain visa waiver travel authorisation because that route exists only for people who are not US citizens. The British passport preserves your other travel, not your US travel.

Cross-border US UK tax exposure does not stop at money for a dual national living in Britain, because a large enough unpaid US balance can cost you the one document you need to enter the United States. Under Internal Revenue Code section 7345, the IRS certifies a seriously delinquent tax debt to the State Department, which must then deny your passport application or renewal and may revoke or limit a passport you already hold. The IRS page Revocation or denial of passport in cases of certain unpaid taxes puts the 2026 threshold at more than $66,000 of unpaid, legally enforceable federal tax debt including assessed penalties and interest, and states plainly that the amount is adjusted yearly for inflation.

That last point matters more than most commentary admits. Pages still circulating quote thresholds of $52,000, $62,000 and $64,000. Each was correct in its year and none is correct now. Treat any figure you read, including the one above, as a snapshot of a moving number.

The people caught by section 7345 are not taxpayers with trivial balances. They are the ones this practice sees constantly: a London partner who has filed in the UK for fifteen years and nothing in the US, an investment banker whose bonus and share awards produced a US liability no foreign tax credit could fully absorb, a business owner who sold a UK company and found the US taxed the gain on different terms. A catch-up produces the assessment. The assessment produces the balance. The balance is what gets certified.

What counts as a seriously delinquent tax debt?

Certification is not discretionary once the conditions are met, and the conditions are cumulative. A large balance on its own does nothing at all. Section 7345(b) and the IRS passport page describe an account that must satisfy every one of the following.

An assessed, unpaid, legally enforceable federal tax liability. The statute requires that the liability has been assessed, which is a specific administrative event, not merely an amount the IRS believes you owe.
A total above the inflation-adjusted threshold, stated by the IRS as more than $66,000 for 2026, including assessed penalties and interest as well as tax.
Either a filed Notice of Federal Tax Lien for which all administrative remedies under the law have lapsed or been exhausted, or a levy the IRS has issued to collect the debt.

The third limb is where most well-advised dual nationals are protected without ever realising it. If you engage with the balance, the lien and levy machinery never reaches the point at which remedies have lapsed. Certification sits at the end of a collection sequence, not at the start of one. Every step of that sequence generates correspondence sent to your last known address, which is why a current UK address on your IRS account is not an administrative nicety.

Why an unfiled US return alone cannot cost a dual national a passport

This is the most misunderstood point in the field, and almost every competing article gets it wrong by omission. Unfiled returns are not certifiable. Section 7345(b)(1) requires a liability that has been assessed, and the Internal Revenue Manual passport program section repeats the requirement in the same terms: a seriously delinquent tax debt is the unpaid, legally enforceable federal tax liability which has been assessed. A year you never filed carries no assessment, so there is nothing to certify, however large the theoretical liability might be.

What changes that is a substitute for return. Where the IRS holds information returns showing income reported under your Social Security number and you do not file, it can prepare a return on your behalf under section 6020(b) and assess the resulting deficiency. That assessment is a real, enforceable liability, and it is computed on the least favourable basis available: filing status and deductions assumed against you, gross proceeds treated as gain with no cost basis, and, decisively for a dual national, no foreign tax credit for the UK tax you actually paid on the same income.

The practical consequence is a sequencing one. Filing your own returns creates the assessment, so a catch-up is what starts the clock. But filing voluntarily is also the only way to control the number, because your own return carries the foreign tax credits and treaty positions a substitute for return will never include. A UK resident whose genuine US liability after credits would sit below the threshold can end up with an assessed balance several times larger, and firmly above it, purely because the IRS computed it. The answer is never to delay filing. It is to file with the collection consequence already planned for.

Which tax debts are excluded from passport certification?

The exclusions do real work, and knowing them is what turns a certification threat into a paperwork exercise. The IRS passport page and the Internal Revenue Manual set out statutory exclusions that apply automatically once the relevant status is on the account.

A debt being paid timely under an installment agreement the IRS has accepted.
A debt being paid timely under an accepted offer in compromise.
A debt covered by a settlement agreement entered into with the Department of Justice.
A debt where collection is suspended because a collection due process hearing on a levy was timely requested.
A debt where collection is suspended because innocent spouse relief has been requested.

Beyond those, the Internal Revenue Manual lists discretionary exclusions the IRS applies as a matter of practice: accounts reported currently not collectible because of hardship, identity theft cases, bankruptcy, deceased taxpayers, a pending offer in compromise, a pending installment agreement, and taxpayers in a federally declared disaster area. Certification is postponed for taxpayers serving in a designated combat zone.

Two carve-outs matter disproportionately to a UK-resident dual national. Child support is not certified, and neither are FBAR penalties. That second exclusion is significant, because for many Americans in Britain the largest single figure on the account is an FBAR penalty rather than income tax. FBAR penalties are imposed under Title 31 through the Bank Secrecy Act reporting regime, not under the Internal Revenue Code, and the IRS states expressly that they are not certified as seriously delinquent tax debt. They remain fully collectible. They simply do not travel through section 7345, and they should not be added into your threshold arithmetic.

What actually happens once the IRS certifies?

Certification is systemic. When your account meets the criteria, the IRS notifies the State Department and sends you Notice CP508C by regular mail to your last known address. The notice states that your passport may be revoked and that your application for a new passport or a renewal will be denied. There is no separate appeal built into that notice and no grace period before the State Department is informed. The notification and the notice happen together.

What the State Department does next depends on what you are asking of it. If you apply for a passport or a renewal, it issues a letter and holds your application open for 90 days from the date of that letter, allowing time to resolve the debt or address an erroneous certification. If nothing happens in that window, the application is denied and closed and you must begin again with a fresh application. If you already hold a valid passport the position differs: the IRS states that the State Department must deny an application or renewal, but may revoke or limit an existing passport. Revocation of a passport in hand is not automatic.

Before the IRS asks the State Department to revoke, it sends Letter 6152, Notice of Intent to Request U.S. Department of State Revoke Your Passport. That letter is the warning shot, and the IRS asks you to call within 30 days of its date. For a dual national in the UK, a 30-day window and international post are not natural allies.

If you are already overseas when a passport is revoked, you are not stranded. The IRS states that the State Department may limit the passport for return travel only, or issue a limited-validity passport permitting direct return to the United States. Be clear about what that is: a one-way document home, not a travel document you can continue to use.

Can a dual national simply travel on a British passport instead?

This is the first question every US/UK dual national asks, and for the journey that matters the answer is no. US law generally requires a US citizen to enter and depart the United States on a US passport. A US citizen is not eligible for a US visa, and cannot use a foreign passport to obtain travel authorisation under the visa waiver arrangements, because that authorisation exists only for people who are not US citizens. Your US citizenship is a fact about you, not a choice you make at the check-in desk.

The effect of a certification on a dual national in London is therefore asymmetric, and the shape of it is worth stating precisely.

Your British passport keeps working for UK residence, European travel and essentially every destination outside the United States. Certification does not touch it, the IRS has no authority over a British travel document, and HMRC has no role here.
Your ability to enter the United States is what is affected, because that journey requires a valid US passport the State Department may now refuse to issue or renew.
For this readership the consequence is commercial, not merely inconvenient. US board meetings, deal closings, investor days and family visits are the events that stop, usually at short notice.

That asymmetry also creates a trap. Because the British passport keeps working, dual nationals frequently do not discover the problem at all until a US passport approaches expiry and a renewal is refused. By that point the certification has usually been in place for some time, and the 90-day hold on the application is the only runway left.

A worked example: a London dual national approaching a passport renewal

What follows is an illustration with self-computed figures rather than a case study, but the shape of it is common. Marcus is a US/UK dual national, born in Boston, resident in London for nineteen years, and a managing director at a bank in the City. He has filed and paid UK tax throughout and assumed it covered the position. It did not. He instructs a catch-up, and the completed returns produce these numbers.

Residual US tax after foreign tax credits across the catch-up years: $58,000, driven almost entirely by a single disposal of shares in a private UK company where the US treatment of the gain exceeded the UK capital gains tax he had already paid on it.
Failure-to-pay penalties and interest accrued to the date of assessment: $14,000.
Total assessed balance once the returns are processed: $72,000.

Set that against the 2026 threshold of more than $66,000 on the IRS passport page and Marcus is over it by $6,000. His US passport expires in eleven months. Being over the threshold does not certify him, because only one of the three elements is satisfied. What would certify him is what happens if he ignores the balance-due notices: the IRS files a Notice of Federal Tax Lien, his collection due process rights in response to that lien lapse once the statutory response window closes, and at that moment all three elements are present. CP508C then arrives at his London address, and when he applies to renew his passport the State Department holds the application for 90 days and then denies and closes it.

The step that prevents the entire sequence costs nothing but timing. Before the lien remedies lapse, Marcus enters a direct debit installment agreement of approximately $1,200 a month over 72 months, which covers the $72,000 balance together with the interest that continues to accrue while he pays it. A debt being paid timely under an accepted installment agreement is a statutory exclusion from certification. His account never becomes certifiable, no CP508C is issued, and his renewal is processed in the ordinary way.

Two things could still undo him, and both are worth naming. If he defaults on the agreement, the exclusion falls away and the account becomes certifiable again on the same facts. And had he waited for the IRS to prepare a substitute for return instead of filing his own, the assessed balance would have been computed with no foreign tax credit for the UK tax he paid on that disposal, pushing the figure well beyond $72,000 and making the monthly commitment correspondingly harder to sustain.

How is a certification reversed, and how fast does CP508R follow?

Reversal is well defined. The IRS reverses a certification when the debt is fully satisfied, when it becomes legally unenforceable, when it ceases to be a seriously delinquent tax debt because an exclusion now applies, or when the certification was erroneous. On resolution, the IRS states that it will reverse the certification within 30 days and notify the State Department, and it sends you Notice CP508R to confirm that it has done so.

CP508R closes the loop. The IRS states that once it has been issued, the State Department is no longer required to deny your application for a passport or a renewal and cannot revoke your current passport because of your tax status. Keep the notice permanently. It is the only clean evidence you will hold that the certification is behind you.

For a dual national in the UK there is a faster route. The IRS operates an expedited decertification procedure and states it can generally shorten the standard 30-day processing time to between 9 and 16 days. Tell the IRS that you have international travel scheduled within the next 45 days or that you live abroad, and be ready to provide proof of travel and a copy of the letter you received from the State Department. Living abroad is itself part of the qualifying description, which is a real advantage for this readership and one almost no UK-facing article mentions.

If you believe a certification is simply wrong, section 7345(e) provides a judicial route. The IRS confirms you may file suit in the US Tax Court or a US District Court to have the court determine whether the certification is erroneous, and that you need not file an administrative claim or contact the IRS first. In practice, correcting the underlying account is usually faster and cheaper than litigating.

Practical sequencing for a UK-resident dual national catching up

If you are about to bring several years of US filings up to date and you depend on US travel, the order of operations is what protects you. This is the sequence we run.

Establish your US passport expiry date before any return is filed. It is the fixed point everything else is planned around, and renewing while the account is clean is cheaper than resolving a certification afterwards.
Model the assessed balance before you file. If the projected total, including penalties and interest to the likely assessment date, will exceed the current threshold, you are planning a collection strategy alongside the filing exercise, not after it.
Confirm the IRS holds your current UK address. CP508C, Letter 6152 and the State Department letter all go to a last known address, and a window consumed by post redirection is a window you never had.
Have the payment arrangement ready to submit as the assessments post, so an exclusion attaches before the lien and levy sequence can advance. Timing, not merit, decides this.
Keep the arrangement current. A defaulted agreement re-exposes the account immediately, because the exclusion holds only while the debt is being paid timely.
Do not fold an FBAR penalty into your threshold arithmetic. It is not certified, and conflating the two distorts your real passport risk in both directions.

Where passport risk sits in a wider US compliance position

Passport certification is a symptom rather than a condition. It appears at the end of a chain that began with returns that were not filed or balances that were not addressed, and the fix is almost never a passport fix. It is comprehensive, accurate preparation of the underlying US returns, computed with the foreign tax credits and treaty positions a UK-resident dual national is entitled to claim, followed by disciplined handling of whatever balance those returns produce.

Renunciation comes up in almost every conversation of this kind. It is a separate subject with its own consequences, and it does not erase an assessed liability that already exists. A debt certified under section 7345 remains a debt afterwards.

Our work with US/UK dual nationals is precisely this: complete the catch-up filings correctly, compute the real number rather than the worst-case one an unfiled year invites, and put the payment arrangement in place before the account reaches the point where the State Department becomes involved. If a CP508C or Letter 6152 has already arrived, or a renewal is being held, the same work applies with less runway. The page to check for the current threshold is the IRS page Revocation or denial of passport in cases of certain unpaid taxes.