An English divorce settlement can carry US tax consequences. Asset transfers, the home, pension sharing, maintenance and FBAR for American spouses in the UK.
When one or both spouses are US citizens living in England, a divorce is taxed twice over: once under UK rules and once under US rules that apply to American citizens wherever they live. A settlement that is sensible under English family law can still produce an unexpected US gain, an unusable pension share or a missed reporting obligation, because the two systems treat asset transfers, the family home, pensions and maintenance differently. The practical answer is to have cross-border tax advice running alongside the negotiation, while the terms can still be shaped, rather than after the order is sealed.
English family lawyers negotiate towards a fair division under English law. The process is not designed to test each proposed transfer against the Internal Revenue Code, yet a US citizen remains within the US tax system throughout the divorce.
Terms that look equivalent in pounds may not be equivalent after tax. A portfolio with a large unrealised gain is worth less to the spouse who receives it than the same value in cash, and a UK pension credit may be taxed very differently in American hands. That is not a criticism of the family-law advice; it is a separate discipline. This article is general information, not legal advice — your family solicitor remains the right person for family-law questions.
In the UK, transfers between spouses or civil partners living together give rise to neither a gain nor a loss. HMRC's guidance on Capital Gains Tax on separation and divorce extends that room for separating couples.
According to HMRC's HS281 helpsheet, if you were living together at some point in a tax year, you can transfer assets at no gain or loss at any time up to the earlier of:
In addition, transfers made in accordance with a formal divorce or separation agreement or court order are at no gain or loss without any time limit. HS281 notes the rule does not apply to trading stock. Outside these rules, a transfer after separation is treated as taking place at market value.
The US has its own nonrecognition rule. IRS Publication 504 explains that, generally, no gain or loss is recognised on a transfer of property to a spouse, or to a former spouse if the transfer is incident to divorce — even where the transfer is in exchange for cash, the release of marital rights or the assumption of liabilities. The recipient takes over the transferor's basis.
A transfer is incident to divorce if it occurs within one year after the marriage ends, or is related to the end of the marriage — made under the divorce or separation instrument and within six years after the marriage ends. Otherwise the IRS presumes it is unrelated, a presumption that can be rebutted where business or legal factors prevented an earlier transfer.
The windows are measured differently — the UK by tax years after ceasing to live together, the US from the date the marriage ends — so a transfer can sit comfortably inside one and uncertainly under the other. US gift tax sits alongside: Publication 504 notes that transfers to a former spouse are not generally eligible for the marital deduction, although transfers under a divorce decree are excepted.
This is where mixed-nationality marriages most often come unstuck. Publication 504 lists exceptions to the US nonrecognition rule, and the first is that it does not apply if your spouse or former spouse is a nonresident alien.
Consider a US citizen married to a British national who has never lived in the United States. If the American transfers appreciated shares or a property interest to the British spouse under the settlement, the US may treat that as a disposal on which the American realises a gain — while HMRC treats the same transfer as no gain or loss, leaving no UK tax to credit against it. Publication 504 also states that the gift tax marital deduction exception does not apply where the spouse is not a US citizen.
Which assets go to which spouse — who keeps the appreciated portfolio, who takes cash or the pension — can therefore matter far more than in a purely domestic divorce. For the wider picture of a mixed-nationality household, see our guide to US tax with a non-American spouse.
For many couples the home is the largest asset, and it is examined by both systems at once.
In the UK, Private Residence Relief can remove the gain on a main home. HMRC notes that a married couple or civil partners can have only one main home between them for any period, and that you always get relief for the final nine months of ownership before sale. HMRC's separation guidance adds two helpful rules: a spouse who keeps an interest in the former home after moving out can be given the option to claim Private Residence Relief when it is eventually sold; and a spouse who transferred their interest but kept a right to a share of the proceeds can apply the same treatment to those proceeds as applied to the original transfer.
In the US, the American spouse looks to the exclusion in Publication 523. IRS Topic 701 sets out the core test: ownership and use as a residence for at least 24 months in the five years before sale, with up to $250,000 of gain excluded, or up to $500,000 on a joint return. Publication 523 adds two rules for separating couples: a recipient of a home from a spouse or former spouse can count the time the spouse owned it, and a spouse who has moved out can still be treated as using the home while the other is allowed to live there under a divorce or separation instrument as their main home.
Timing therefore matters on both sides. If the American moves out and years pass before a deferred sale, the US use test may fail unless the arrangement is written into the instrument. The US also computes gain in dollars, so currency movement can create a US gain on a home with little sterling gain — covered in selling UK property as a US citizen.
HMRC's Pensions Tax Manual describes a pension sharing order as awarding one party a percentage of the value of the other's pension rights, which must be used to provide the recipient with pension benefits of their own. The member's rights are reduced by a pension debit and the recipient receives a pension credit in their own name.
For a US-citizen recipient, the difficulty is that US rules for dividing retirement benefits on divorce are built around American plans. Publication 504 defines a qualified domestic relations order by reference to a State's or Tribe's domestic relations law and qualified retirement plans, and the tax-free transfer rule applies to IRAs. A pension credit created in a UK scheme by an English court fits neither description neatly. How the credit, its growth and eventual payments are taxed in the US — and how the US-UK treaty applies — needs specific analysis before a pension is offset against the house or cash. Our article on US tax on UK pensions and SIPPs explains the underlying treatment.
US position. IRS Topic 452 is clear that the payer cannot deduct alimony or separate maintenance paid under an agreement executed after 2018, or under an earlier agreement modified to say that the repeal applies, and that the recipient does not include those payments in gross income. Agreements executed before 2019 and not modified keep the older deduction-and-inclusion treatment. Child support is never deductible and never income.
UK position. HMRC's Savings and Investment Manual confirms that an annual payment made by an individual is generally not chargeable to income tax, and that maintenance payments arising outside the UK are exempt if they would have been exempt had they arisen in the UK. Relief for the payer is narrow: gov.uk explains that Maintenance Payments Relief is available only where either party was born before 6 April 1935.
For most couples settling now, maintenance is neutral in both systems. The trap is varying a pre-2019 order, which can change its US treatment, so check any variation from the US side first.
Publication 504 explains that US filing status depends on marital status on the last day of the tax year. If you are separated but have not obtained a final decree of divorce or separate maintenance by then, you are married for the whole year and file either jointly or separately. An interim stage in the proceedings is not enough: the IRS states that an interlocutory decree is not a final decree.
Two cross-border points deserve attention:
Joint liability survives the divorce: each spouse can be held responsible for tax on joint returns already filed, whatever the order says.
The FBAR is required where a US person has a financial interest in, or signature or other authority over, foreign financial accounts whose aggregate value exceeded $10,000 at any time in the calendar year. It is filed electronically with FinCEN, due 15 April with an automatic extension to 15 October.
Separation moves money through accounts in ways that matter. An American who held a joint UK account for most of the year before it was closed or retitled still had a financial interest during that year. House-sale proceeds passing through a new account can cross the threshold on a single day. Removing a name ends the interest going forward, not backwards, and the settlement year is usually the busiest for reporting.
The most useful time for cross-border tax advice is while options are still being modelled — before offers are exchanged, and certainly before a consent order is drafted. It is then possible to compare after-tax values in both currencies, choose which assets go to which spouse, write the right terms about the home into the instrument, and plan the filing years either side of the decree. Once the order is sealed, those choices are largely made.
We work alongside family solicitors, not in place of them, and do not advise on family-law entitlements. A licensed CPA or Enrolled Agent reviews and signs off every US filing that leaves the firm. Our US-UK expat tax accountant service sets out how we work, and if it would help to talk through your position in confidence, you can book a consultation at a time that suits you.
This article is general information, not tax or legal advice, and does not create a professional relationship. It does not address family-law entitlements, for which you should take advice from a family solicitor. UK and US rules change, and the treatment of any transfer, property, pension or payment depends on your own facts; confirm the current position with a licensed professional before acting.
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Reviewed by a CPA / Enrolled Agent. Last updated: 14 September 2026.
Official sources: HMRC — Capital Gains Tax: separation and divorce | HMRC — HS281 Capital Gains Tax: civil partners and spouses | GOV.UK — Tax when you sell your home: absence from home | GOV.UK — Income tax reliefs: maintenance payments | HMRC — SAIM8070 Annual payments: exemptions | HMRC — PTM029000 Divorce and pension benefits | IRS — Publication 504, Divorced or Separated Individuals | IRS — Topic 452, Alimony and separate maintenance | IRS — Publication 523, Selling Your Home | IRS — Topic 701, Sale of your home | IRS — Nonresident alien spouse | IRS — Report of Foreign Bank and Financial Accounts (FBAR)