HMRC Repayment Overseas Bank Account After Late Returns

HMRC can pay a Self Assessment repayment into an overseas bank account, but not through the tax return itself. The return accepts only a UK sort code and account number. To reach a non-UK account you must instruct HMRC separately in writing with full international banking details, use a UK-based nominee, or accept a sterling payable order posted abroad.

The overpayment is the part of a catch-up nobody plans for

Most late-filing projects are built around the liability. The client and the adviser assume the exercise ends with a payment to HMRC, so the whole plan is oriented around quantifying tax, interest and penalties, and settling. Then the numbers land, and the direction of travel reverses: excess PAYE on a UK employment that ended mid-year, over-deducted tax on UK property income, unrelieved losses carried back, an unclaimed personal allowance for a year the client had already left, or double taxation relief that was never claimed because the return was never filed. The catch-up produces a credit. And at that point the client discovers that getting money out of HMRC while living in New York, Singapore or Dubai is materially harder than getting money in.

The practical problem is narrow and specific. HMRC's repayment machinery was built for a UK-resident population with UK current accounts. Everything about an offshore-connected claim — a foreign correspondence address, a nominee, a first return in six years, a large credit, a return filed without a notice to file — is exactly the risk profile the automated system is designed to stop and look at. Understanding an HMRC repayment overseas bank account route properly is the difference between money arriving in three weeks and money arriving in nine months, or a sterling cheque that a US bank will not touch. At Jungle Tax this is the closing stage of nearly every UK compliance catch-up we run for internationally mobile clients, and it is where most of the avoidable delay sits.

Can HMRC pay a repayment into an overseas bank account?

Yes — but only outside the return. It is worth separating three distinct questions that are routinely conflated online: what the return will accept, what HMRC's systems can actually do, and what HMRC will do when asked properly.

What the tax return itself will and will not accept

The repayment boxes on the SA100 (and the equivalent screens in HMRC's online service and in commercial filing software) ask for a sort code, an account number, and an account name. There is no field for an IBAN, no field for a SWIFT/BIC code, no field for a routing number or a BSB. This is not a validation quirk you can work around by compressing an IBAN into the account-number box; doing so simply produces a failed BACS attempt, the repayment falls out of the automated process, and the credit sits on the statement of account with no payment behind it. Clients frequently tell us the refund "was issued and never arrived" when what actually happened is that the BACS instruction was rejected and nobody was told.

So the correct handling at filing stage is deliberate: either you supply genuine UK bank details, or you supply a nominee's UK details, or you leave the repayment boxes empty and deal with the payment method separately. Filling them with something approximate is the single most common self-inflicted delay we see.

The written instruction route

Where the taxpayer has no UK account and no suitable nominee, HMRC will accept a written instruction to pay an overseas account. In practice this means a letter (or, where an agent holds authority, correspondence through the agent) that carries the taxpayer's name, Unique Taxpayer Reference, National Insurance number where held, the tax year and amount claimed, the exact account name as it appears at the receiving bank, the IBAN, the SWIFT/BIC, the bank's name and full address, and the country. For US accounts, which do not use IBANs, you supply the ABA routing number and account number together with the SWIFT code for international wires. Any mismatch between the account name and the taxpayer's name on HMRC's record will stop the payment, so a joint account, a maiden name, or an account held in an abbreviated form all need to be flagged explicitly rather than left for HMRC to reconcile.

Two operational points matter. First, HMRC pays in sterling; conversion happens at the receiving bank, at that bank's rate, and correspondent-bank charges are typically deducted en route. Second, this route is manual by definition — it removes the claim from the automated repayment process, which is the trade-off you accept in exchange for the money landing in the right account. Multi-currency accounts that provide a genuine UK sort code and account number in the holder's own name (rather than a pooled client account) sidestep the whole problem, and for clients with an ongoing UK footprint that is usually the cleanest structural fix. HMRC's own procedural framework for issuing repayments, including nominations and non-automatic cases, sits in the Self Assessment Manual at SAM110000.

The nominee route: when it helps and when it creates a problem

Nominating a UK-resident individual or a UK firm to receive the repayment is the oldest solution and still often the fastest. The nominee's UK account receives the BACS payment inside the normal automated cycle, and the nominee then remits onward. A nomination can be made in the repayment section of the return, on form R38 for a postal claim, or by separate written authority.

Nomination versus deed of assignment

These are not the same instrument and the distinction has consequences. A nomination is a payment direction: the money remains the taxpayer's, HMRC simply pays it to a third party on instruction, and the taxpayer can revoke it before payment issues. A deed of assignment legally transfers the entitlement to the repayment to the assignee; once HMRC has recorded a valid assignment it is effectively irrevocable and the assignee, not the taxpayer, owns the credit. High-net-worth clients should almost never sign an assignment in favour of anyone other than a firm they have a direct engagement with, and in most catch-up cases a simple nomination is the right tool.

The risks a nominee introduces

A nominee is a red flag to HMRC's risk engine, and reasonably so — repayment fraud in the UK is overwhelmingly perpetrated through third-party nominations. A claim with a foreign correspondence address and a UK nominee and a first return after several dormant years is close to a template for a security check. There are also non-tax consequences that clients rarely consider: the nominee receives a sterling sum into a personal account, which raises source-of-funds questions with their own bank, and onward transfer to the taxpayer is a personal remittance that needs a clean audit trail. Where the client is US-connected, the nominee should not be a person whose account the client can control or sign on, or you have created a foreign financial account reporting question where none existed.

Payable orders and sterling cheques: the fallback that often fails abroad

If no electronic route is available, HMRC issues a payable order — effectively a sterling cheque — posted to the address held on record. For an overseas client this is usually the worst outcome available. International post to some jurisdictions is unreliable; the instrument is valid for a limited period and then has to be re-issued; and the deeper problem is that most retail banks outside the UK will no longer negotiate a foreign-currency paper instrument at all. Those that will typically send it for collection, take several weeks, and levy a fee that can be disproportionate on a modest repayment. US banks in particular have largely exited sterling cheque collection.

If a payable order has already been issued and cannot be banked, the correct step is to return it to HMRC with a written request to re-issue by transfer to the overseas account, supplying the full international details. Do not attempt to endorse it over to a third party; HMRC does not treat that as a valid transfer and the funds will not clear.

Comparing the four routes

Route	How it is instructed	Typical speed	Best for	Main risk
UK bank account	Repayment boxes on the return	Fastest — inside the automated cycle	Clients who retained a UK account after leaving	Dormant or closed accounts cause BACS rejection
UK nominee	Return nomination, R38, or written authority	Fast, then onward transfer	No UK account but a trusted UK party or acting firm	Elevates risk-check probability; source-of-funds questions for the nominee
Overseas account by written instruction	Letter with IBAN/SWIFT or routing number	Slower — manual handling	Clients with no UK footprint at all	Name mismatches and correspondent fees; falls out of automation
Payable order / sterling cheque	Default where no details are held	Slowest, plus overseas clearing	Almost nobody by choice	Many non-UK banks will not accept it; limited validity

Why a late catch-up breaks the automatic repayment

This is the part generalist refund pages miss entirely, and it is the single most valuable thing to understand before you file a batch of late returns that will generate a credit.

HMRC's automated repayment process handles the large majority of Self Assessment refunds without a human touching them. It is designed around returns filed in response to a notice to file. A return submitted for a year where HMRC never issued a notice — a voluntary return — is a very different object in HMRC's systems, and voluntary returns are the largest single contributor to failures in the automated repayment process. This matters acutely for catch-up work, because a client who left the UK years ago and was taken out of Self Assessment, or who was never brought into it in the first place, has no notices to file for the years being cleaned up. Every return in the batch is therefore voluntary, every resulting repayment is manual, and the timelines that apply to ordinary refunds do not apply.

The fix is procedural and it must happen before filing: request that HMRC issues notices to file for the years in question, so the returns are made under section 8 rather than voluntarily. That single step, taken at the planning stage of a catch-up, routinely saves months at the repayment stage. It also has a second benefit — it puts the years formally into Self Assessment, which produces cleaner enquiry windows and a more defensible position on the record.

Other features that pull a repayment out of automation include a recent payment to HMRC (repayments are commonly held for a short window after a payment as an anti-fraud measure), an address mismatch between the return and HMRC's record, an active time-to-pay arrangement, a very large repayment amount, and a credit balance built from many separate payments. Several of these are near-universal in catch-up cases.

What triggers HMRC's repayment security checks on offshore-connected claims?

HMRC's compliance units issue what are usually called repayment credibility or security check letters before releasing a refund. They are not formal enquiries into the return, and that distinction is important: because they sit outside the enquiry framework, the usual statutory protections and timescales do not apply, and HMRC simply holds the money until it is satisfied. In practice they operate as a soft enquiry with real teeth, and the volume of them has risen sharply.

The features that most reliably attract one, in our experience with internationally mobile clients, are: a non-UK correspondence address; a nominee or newly-supplied bank details; a first return after a gap of several years; a repayment that is large relative to the income declared; a claim driven by relief rather than by over-deduction at source (double taxation relief, loss carry-back, unclaimed allowances); and any change of name, address or bank details made close in time to the claim. A cross-border catch-up frequently has four or five of these at once.

What the letter asks for, and how to answer it

A typical letter asks the taxpayer to confirm identity, confirm that the return was submitted by them or on their authority, evidence the income and the tax deducted, and evidence entitlement to the bank account nominated. Responses are usually required within a set period, commonly 30 days, and the letter's tone is considerably more alarming than the underlying process warrants.

Answer it once, completely, and in a form HMRC can process without coming back. That means: a covering schedule that ties each figure on the return to a source document; P60s, P45s and payslips for employment income; completion statements and agent invoices for property disposals; certificates of tax deducted; the treaty article and computation where double taxation relief drives the claim; and, where a nominee or overseas account is used, a clear explanation of the relationship and a bank statement header showing the account name. Partial responses are the reason these checks run to three months rather than six weeks. If the client is also mid-way through a US disclosure, keep the two files consistent — the figures you give HMRC and the figures on the streamlined filing submission should reconcile, because they increasingly can be compared.

How long does an HMRC repayment to an overseas bank account really take?

Published targets and observed reality diverge, and clients should be given the observed range up front.

Where the return is filed against a notice to file, the client has a live UK account in their own name, and nothing is flagged, HMRC's target for issuing an automated repayment is measured in working days rather than weeks — the commonly quoted figure is around ten working days from submission. Add a nominee and you add the nominee's own clearing and onward transfer. Take the written-instruction route to an overseas account and you are in manual processing, where correspondence turnaround is the binding constraint and several weeks is normal. Add a credibility check and the realistic range extends substantially — up to around twelve weeks is the figure HMRC itself has indicated, and complex offshore-connected cases can run longer where information requests are iterative.

Two mitigations are worth building into the plan. First, HMRC pays a repayment supplement — statutory interest — on refunds of overpaid tax from the relevant date, so a long delay is not entirely uncompensated, although the rate is modest and the supplement itself is taxable in the US for a US-connected client. Second, if a repayment has genuinely stalled beyond reasonable time, escalation through the agent account manager route or a formal complaint tends to be far more effective than repeat calls, and both create a record that supports a later claim for redress.

One hard deadline to watch: a claim to recover overpaid tax outside the normal amendment window is subject to a strict statutory time limit — generally four years from the end of the tax year. A catch-up that reaches back further will simply not produce a recoverable credit for the earliest years, however clear the overpayment. Sequencing the oldest years first is often the right call for exactly this reason.

The US side: what the UK repayment does to your American return

This is where a UK-only adviser stops and where the real cross-border exposure begins. A UK repayment is not a neutral event for a US person; it is a change to a number the IRS has already relied on.

Foreign tax credit redetermination

If the UK tax being refunded was previously claimed as a foreign tax credit on Form 1116, the refund changes the amount of foreign tax "paid or accrued" for that year. US law treats that as a foreign tax redetermination, and it carries an affirmative obligation to notify the IRS and, where the credit was claimed on an accrual basis, to amend the affected year. This is not optional housekeeping — failure to notify can carry penalties and, more practically, leaves an inconsistency between two tax authorities that are exchanging information about the same person. The mechanics matter too: a redetermination can cascade, because reducing foreign tax in one year alters carryback and carryforward of excess credits into others. Where a catch-up produces refunds across several years and those years carried Form 1116 credits, the US amendment workstream can be larger than the UK one that generated it.

Where relief was taken as a deduction rather than a credit, or where the years in question were covered by the foreign earned income exclusion, the analysis differs — but it still needs doing rather than assuming. This interaction is the core of what we handle in cross-border tax planning for clients unwinding several years at once.

Repayment supplement and exchange gains

Statutory interest paid by HMRC on the repayment is interest income for US purposes in the year received, even though the underlying refund is a return of capital. And because the repayment is denominated in sterling but the US return is computed in dollars, movement between the date the tax was originally paid and the date it is refunded can produce a currency gain or loss that has to be considered. On a seven-figure repayment across several years these are not rounding items.

The IRS has its own overseas payment problem

The symmetry is instructive. The IRS does not deposit refunds into most foreign bank accounts either: direct deposit requires a US account at an institution in the Federal Reserve System, or a correspondent bank maintaining an account at a Federal Reserve Bank. That constraint has become sharper as federal payments move to electronic-only under the 2025 modernisation executive order; taxpayers abroad have been treated as an exception and remain able to receive a paper check at a foreign address, and the IRS has published questions and answers on Executive Order 14247 alongside its practical guidance on receiving a refund while living abroad. Filers of Form 1040-NR have an option their 1040 counterparts do not: an alternative non-US mailing address specifically for the refund check.

Issue	HMRC (UK)	IRS (US)
Foreign bank account on the return	No field — UK sort code and account number only	No — direct deposit requires a US or Federal Reserve correspondent account
Route to a non-UK/non-US account	Separate written instruction with IBAN/SWIFT	No general route; US account or paper check
Third-party nominee	Permitted by nomination or deed of assignment	Not available in the same way; refunds go to the taxpayer
Paper instrument abroad	Sterling payable order to the address on record	Check to a foreign address; taxpayers abroad remain eligible
Interest on the refund	Repayment supplement from the relevant date	Overpayment interest, generally after a set period
Knock-on filing obligation	Amendments to later years if reliefs shift	Foreign tax credit redetermination and notification

The account that receives the money is itself reportable

A point that catches people at precisely the wrong moment. A US person who opens a new overseas account — including a multi-currency account with a UK sort code — to receive an HMRC repayment has created a foreign financial account. If aggregate foreign account balances exceed the reporting threshold at any point in the year, that account belongs on the FBAR, and potentially on Form 8938 as well. Receiving a substantial sterling repayment can push a previously sub-threshold client over the line for the first time.

The irony is sharp for anyone whose catch-up was driven by unreported foreign accounts to begin with: the mechanics of collecting the refund can generate a fresh reporting obligation in the same year you are resolving historic ones. Plan the receiving account before the money moves, not after. Clients modelling historic exposure often start with our FBAR penalty calculator before deciding on a disclosure route.

A workable sequence for a cross-border catch-up that ends in a refund

• Decide the destination account before you file. Live UK account in the client's own name, credible UK nominee, or overseas account by instruction — pick one and build the filing around it.
• Ask HMRC to issue notices to file for every year in the catch-up, so the returns are not voluntary and the repayments stay eligible for automated processing.
• Align the address on HMRC's record with the address on the returns before submission, and make any change well ahead of the claim rather than alongside it.
• File the batch, oldest year first, with an eye on the four-year recovery limit, and keep the supporting file assembled as if a credibility check is certain.
• Model the US consequences in parallel — Form 1116 redetermination, the taxability of the repayment supplement, currency movement, and any new account reporting.
• Escalate on a schedule, not on frustration. Diarise a review point, then use the agent escalation and complaints routes deliberately.

Mistakes we are asked to unwind

• An IBAN typed into the sort code and account number boxes, producing a rejected BACS payment nobody was notified of.
• A nomination in favour of a former UK adviser the client no longer engages, discovered only when the money does not arrive.
• A payable order posted to a UK address the client left in 2019, then re-issued twice more to the same address.
• A credibility check answered in three partial instalments over four months, when one complete response would have closed it in six weeks.
• UK refunds collected across five years with no corresponding US redetermination — a clean UK file sitting on top of an inaccurate US one.
• A brand-new overseas account opened to receive the funds, never reported, in the same year the client was completing a disclosure of unreported accounts.

Speak to us before the repayment is claimed, not after

The repayment is the last stage of a UK catch-up and the one most likely to undo the good work of the first four. Getting the destination account, the notice-to-file position, the evidence file and the US redetermination right at the outset is straightforward; retrofitting them once HMRC has issued a payable order or opened a credibility check is not. If you are unwinding several years of UK returns and expect a credit — or a repayment has already stalled — contact our cross-border team for a confidential consultation. We will map the fastest defensible route to your account, and make sure the UK refund does not create a US problem behind it. You can also review our wider cross-border guides or our approach for high-net-worth clients.