
File anyway, then pick your route. IRS payment plans, offers in compromise, currently not collectible status and penalty relief for Americans abroad who cannot fund the balance.
If you cannot pay your US federal tax bill, file the return anyway and pay whatever you can. The failure-to-file penalty runs at 5% of the unpaid tax for each month or part month the return is late, up to 25%, while failure to pay is 0.5% per month to the same cap — so silence costs roughly ten times as much per month as an unpaid balance. Then choose a route: a short-term payment plan of 180 days or less, a long-term installment agreement, an offer in compromise, or a temporary delay in collection. None of them switch off interest, charged on individual underpayments at 7% for the quarter beginning October 1, 2026 and compounded daily.
If your problem is mechanical rather than financial — no US bank account, a card that keeps declining — the companion piece on how to pay the IRS from abroad covers every payment route instead.
The most expensive decision available to a US taxpayer abroad is to hold the return back because the balance cannot be funded. The two penalties are not comparable in size.
Failure to file is 5% of the tax due for each month or partial month the return is late, to a maximum of 25%. Failure to pay is 0.5% of the unpaid tax for each month or part month it remains unpaid, also capped at 25%. Where both apply in the same month, the failure-to-file penalty is reduced by the failure-to-pay penalty applied that month — the IRS's own illustration is 4.5% plus 0.5%, rather than 5% plus 0.5%. There is also a floor: more than 60 days late, and the IRS applies a listed minimum or 100% of the underpayment, whichever is less. For returns due after December 31, 2025 that minimum is $525, so a $300 balance attracts a $300 penalty and a $4,000 balance attracts $525.
Take a US citizen in London with a $12,000 balance on a 2025 Form 1040 who finds the money eight months after the due date. Two versions of the same facts:
Filed on time, paid eight months late. Failure to pay at 0.5% for eight months: 4% of $12,000 = $480.
Filed eight months late, paid at the same moment. The failure-to-file penalty runs for five months, the point at which the IRS says it maxes out, reduced in each of those months by the concurrent failure-to-pay penalty: 4.5% × 5 = 22.5%. Failure to pay continues for all eight months: 0.5% × 8 = 4%. Combined, 26.5% of $12,000 = $3,180.
A $2,700 difference, created by nothing but when the paperwork arrived. Interest sits on top of both versions identically: if the rate held at 7% and compounded daily, eight months on $12,000 is roughly $570 — and the IRS charges interest on penalties as well as on tax.
If you have unfiled years rather than one unpaid year, start with missed US tax returns. Most relief routes require every required return to be filed first, and the IRS makes the point itself: you qualify for more options once you file, and you do not need to pay the full amount in order to file.
| Situation | Route | Cost to set up | Effect on penalties and interest |
|---|---|---|---|
| Can clear it within 180 days | Short-term plan (owe under $100,000 all-in) | $0 | Failure to pay continues at 0.5% a month; interest continues |
| Need monthly payments, owe $50,000 or less | Long-term agreement, direct debit | $29 online; $107 offline; waived if low income | Failure-to-pay rate drops to 0.25% a month if the return was timely |
| Same, but no direct debit | Long-term agreement, non-direct-debit | $69 online; $178 offline; $43 if low income | Same 0.25% reduction once approved |
| The online tool will not take you | Form 9465, plus Form 433-F or 433-H if asked | Same fees, at the offline rates | Same as the equivalent online plan |
| Assets and future income genuinely fall short | Offer in compromise: Form 656 and 433-A (OIC) | $205 fee plus 20% of a lump-sum offer; both waived on low-income certification | Collection suspended during review; a lien may still be filed; balance keeps accruing; automatic acceptance if no determination within two years |
| Paying anything would stop you meeting basic living expenses | Currently not collectible | No fee; expect Form 433-F, 433-A or 433-B | Penalties and interest keep accruing; a lien may be filed; the debt is not cancelled |
| Clean three-year record, one slip | First Time Abate, transitioning to AEP | No fee | Failure-to-file, pay or deposit penalty may be removed; interest is not |
| Late for reasons outside your control | Reasonable cause | No fee | Penalty may be abated; interest is not |
The IRS splits individual plans two ways. A short-term payment plan clears the balance in 180 days or less, is open online if you owe less than $100,000 in combined tax, penalties and interest, and carries no setup fee at all. A long-term payment plan — the IRS now also calls the online version a simple payment plan — is monthly, and is available online if you owe $50,000 or less all-in and have filed all required returns.
Long-term fees turn on whether you apply online and whether you let the IRS take the money by direct debit: $29 for direct debit online, $107 by phone, mail or in person, $69 and $178 respectively without direct debit. Low-income taxpayers pay nothing on the direct debit route and $43 otherwise, which may be reimbursed if certain conditions are met. Revising a plan or reinstating one after default costs $6.
Now the part most expats miss. The failure-to-pay penalty is normally 0.5% per month, but the IRS reduces it to 0.25% per month where an individual filed the return on time and has an approved payment plan. Over a two-year agreement that halving is worth real money on a five-figure balance — and it is conditional on timely filing, one more reason to treat the two deadlines as separate problems. It moves the other way too: fail to pay within 10 days of a notice stating the IRS's intent to levy and the penalty rises to 1% per month or part month.
The IRS publishes no rule barring taxpayers with a foreign address from the online payment agreement tool. The friction is practical rather than legal, and it sits in three places.
1. Identity verification. The tool requires an IRS Online Account, and the IRS states you need photo identification to create one. Expats who stumble here have not been refused a plan — only the online route to one.
2. Bank details. Direct debit asks for a bank routing and account number, a US domestic format. With no US checking account the non-direct-debit option stays open at the higher fee, and you then pay monthly by card, by wire, or from your online account.
3. The paper route. The IRS directs individuals who cannot use the tool to mail Form 9465, Installment Agreement Request, or apply by phone, paired with Form 433-F or the consolidated Form 433-H where it wants figures.
Apply against the balance on your return if no notice has arrived, and against the notice if one has; a plan built on the wrong figure defaults. Business accounts cannot apply online at all — the IRS directs them to 800-829-4933 or the number on the notice.
An offer in compromise settles a tax debt for less than the full amount owed. It is not a discount for being persuasive: the IRS generally approves an offer when the amount offered represents the most it can expect to collect within a reasonable period, weighing ability to pay, income, expenses and asset equity. The Internal Revenue Manual sets out three bases for compromise — doubt as to collectibility, doubt as to liability, and promotion of effective tax administration, the last covering economic hardship and public policy or equity grounds.
Most offers founder on the first. If the IRS's calculation of what it can collect from your assets and future income exceeds what you offered, the offer fails on arithmetic rather than sympathy. Run the free Offer in Compromise Pre-Qualifier Tool before spending anything; the IRS's own advice is blunt — explore all other payment options first, and the program is not for everyone.
Eligibility is gated: all required returns filed and estimated payments made, no open bankruptcy proceeding, a valid extension if you are applying in respect of a current-year return, and, for employers, tax deposits made for the current and prior two quarters.
Costs are fixed: a $205 non-refundable application fee plus an initial payment with each Form 656 — on a lump-sum offer, 20% of the total, with any remainder due in five or fewer payments after acceptance; on a periodic-payment offer, monthly payments while the IRS considers it. Meet the low-income certification guidelines and you send neither the fee nor the initial payment.
Two more things to know. The IRS may file a notice of federal tax lien while your offer is under consideration, and your assessment and collection period is extended. But if the IRS makes no determination within two years of its receipt date the offer is automatically accepted, and a rejection can be appealed within 30 days on Form 13711.
If paying would stop you meeting basic living expenses, the IRS may place the account in currently not collectible status and temporarily suspend most collection activity. Expect to substantiate it with Form 433-F, 433-A or 433-B, and expect the IRS to verify income, expenses, bank accounts and assets.
Be clear about what it does not do. In the IRS's words, you still owe the full amount of your tax debt: it is not forgiven or cancelled. Penalties and interest continue to accrue until the balance is paid in full, and the IRS may file a notice of federal tax lien to protect the government's interest in your property — a lien that can surface in a mortgage application years later. CNC is breathing space, not a settlement.
The IRS lists three types of penalty relief: reasonable cause, statutory exception, and the administrative waiver known as First Time Abate.
Reasonable cause asks whether you exercised ordinary business care and prudence and were nonetheless unable to comply — a facts-and-circumstances argument, and a weak one where the only fact is that money was tight.
First Time Abate covers the failure-to-file, failure-to-pay and failure-to-deposit penalties where the same return type was timely filed for the prior three years (or 12 consecutive quarters) and either no penalty was assessed in that window, or one was assessed but later abated for reasonable cause or IRS error. It must be requested — by phone using the number on your notice, or in writing.
This is where 2026 matters. The IRS says First Time Abate is transitioning to a new relief called Automatic Exemption from Penalty (AEP), starting summer 2026. AEP recognizes three prior years of timely compliance, covers certain failure-to-file, failure-to-pay and failure-to-deposit penalties, and is applied without the taxpayer doing anything — the IRS issues a notice confirming the relief. It does not cover accuracy-related, information return or daily delinquency penalties. During the transition FTA remains available for eligible earlier returns but must still be requested; for original returns with due dates of January 1, 2027 or later, FTA is no longer available and is replaced by AEP.
The expat implication is uncomfortable. Both reliefs reward a clean three-year record, and a taxpayer surfacing after years of non-filing has none — leaving reasonable cause, or the streamlined procedures, as the realistic penalty argument. Our note on reasonable cause versus non-willfulness sets out how those standards differ.
Interest on underpayments starts on the due date of the amount owed and runs until the balance is paid in full, compounded daily. For non-corporate taxpayers the rate is the federal short-term rate plus three percentage points, reset quarterly: 7% in the first quarter of 2026, 6% in the second, and 7% in both the third and the fourth — the quarter beginning October 1, 2026.
It is not relievable the way penalties are. The IRS does not remove or reduce interest for reasonable cause or as first-time relief; it may be reduced only where it results from an unreasonable error or delay by an IRS officer or employee. Because it compounds daily and is charged on penalties too, partial payments are never pointless — every dollar sent shrinks the base.
The Streamlined Foreign Offshore Procedures require delinquent or amended returns for each of the most recent three years for which the US return due date has passed, plus delinquent FBARs for the most recent six. A taxpayer eligible for them who complies with all the instructions is not subject to failure-to-file, failure-to-pay, accuracy-related, information return or FBAR penalties — the whole point of the program.
But read the payment sentence carefully: the full amount of the tax and interest due in connection with these filings must be remitted with the delinquent or amended returns. Three years of tax in one envelope is a materially larger number than one, and the procedures assume you can fund it. If you cannot, the sequencing of a streamlined submission against a payment plan is exactly the question to put to tax specialists for US and UK before anything is mailed; our overview of the IRS Streamlined Foreign Offshore Procedure covers eligibility separately.
Everything on a US return is expressed in US dollars, translated at the rate prevailing when you receive, pay or accrue the item. There is no official IRS exchange rate; the IRS points taxpayers to banks and published sources.
Payments are governed differently, and the distinction catches people out. Where tax is paid in foreign currency, the IRS states the conversion rate is based on the date the bank processing the payment converts it to US dollars — not the date you instructed the transfer. On a five-figure sterling or dirham balance a few days of movement is a real sum, and a shortfall leaves a residue still accruing penalty and interest. Overfund slightly rather than underfund.
US citizens and resident aliens living abroad get an automatic two-month extension, so an April 15 due date becomes June 15, and Form 4868 extends filing to October 15 — this year, October 15, 2026. None of it touches the payment deadline. The IRS wording on the automatic extension is explicit: even if you are allowed an extension, you will have to pay interest on any tax not paid by the regular due date of your return. And on the extension page: make sure you pay any tax you owe by the April filing date, because the extension is only for filing.
All IRS, verified 3 October 2026:
An unpayable balance is a sequencing problem before it is a money problem: which return goes in first, which relief route is open given your compliance history, and what the IRS will calculate as collectible from your assets and income. Those three questions decide the outcome, and they are easy to get wrong in the order most people attempt them.
If you are weighing a payment plan against an offer, or catching up on several years at once while solvent but illiquid, it is worth an hour with someone who has done it before. At Next Tax Source a licensed CPA or Enrolled Agent reviews and signs off every US submission, and an ACCA-qualified accountant handles the UK side where a cross-border question is in play — you can book a consultation to talk it through. This is general information about how the IRS's published rules work, not advice on your situation, and no one can promise a particular outcome.