Closing a UK account after a move does not erase it from the US reporting year. For a US citizen, the practical FBAR question is whether foreign accounts crossed the threshold at any point from 1 January to 31 December, not what was left open on moving day or at year end.
This guide is for Americans moving from the UK to the United States or another country. It covers the account inventory and dates that are easiest to lose during a move. It does not decide the US treatment of a UK pension, trust, company or investment fund; those structures need their own review before a form is filed or an account is closed.
1. Test your FBAR after leaving the UK across the whole calendar year
FinCEN says a US person with a financial interest in, or signature authority over, foreign financial accounts must file an FBAR when their aggregate value exceeds $10,000 at any time in the calendar year. The threshold is not per bank and it is not a year-end test.
Start a list for every non-US account held before, during or after the move. Include the account name, institution, country, account number, ownership, currencies, opening or closing date and highest value during the year. Flag accounts where you could direct payments or transfers even if you did not own the money.
Use the FBAR and FATCA filing checker once you have that list. Enter each account’s highest value in US dollars, not its closing balance, and use the result to organise the filing decision. It is a planning screen: it cannot determine whether a particular pension, trust or business arrangement is a reportable account.
2. Capture maximum balances before you close anything
The difficult part is usually not the threshold. It is reconstructing a maximum balance after a UK current account, cash ISA or brokerage account has been closed and online access has disappeared.
FinCEN’s instructions say to determine the maximum value of each account in its own currency during the reporting year, then convert it to US dollars using the Treasury rate for the last day of that calendar year. Periodic statements can be used when they fairly show the maximum. A transfer from one UK account to another does not make either account disappear from the inventory.
Download statements, closure confirmations and any annual tax certificates before changing address or cancelling access. Keep a simple file showing the local-currency high, the exchange-rate source and the US-dollar amount used. If two accounts each held less than $10,000 but their combined maximum values passed the threshold, both can still be reportable.
3. Run Form 8938 as a separate test
FBAR and Form 8938 are not alternative ways to report the same thing. The IRS says Form 8938 does not replace FBAR, and an individual may need one, both or neither.
Form 8938 is attached to the federal income-tax return and can cover foreign financial accounts as well as certain foreign investment assets held outside an account. Its thresholds depend on filing status and whether the taxpayer meets the IRS tests for living abroad. For example, the IRS comparison says an unmarried person living in the United States uses more-than-$50,000 at year end or more-than-$75,000 at any time; an unmarried person living abroad uses more-than-$200,000 at year end or more-than-$300,000 at any time.
Do not apply the higher abroad threshold automatically in a year you return to the United States. The IRS rules include tax-home and presence requirements for the “living abroad” category. A move during the year, a joint return, foreign shares held outside a broker account, a trust or a pension can change the analysis. Use the US expat tax filing guide to build a forms list, then get US international tax advice before treating a complex UK asset as excluded.
4. Keep the account report separate from the tax return calculation
An FBAR is an information report filed with FinCEN, not a schedule attached to Form 1040. It does not tell you whether UK interest, dividends, a property gain or employment income is taxable in the United States. Those income and credit questions belong in the return calculation.
That separation matters when you leave the UK. A closed account may still have paid interest before closure, and UK tax paid on income can require separate foreign-tax-credit analysis. Use the Foreign Tax Credit calculator after you have separated earned, passive and other income and entered actual or estimated foreign tax. It compares planning assumptions; it is not a Form 1116, treaty or source-of-income determination.
If you were abroad on the regular filing date, an automatic two-month extension for the federal return may be available when you meet the IRS conditions and attach the required statement. That extra filing time does not remove the need to check the FBAR deadline or settle any tax by the relevant payment date. Put both due dates in the US tax calendar with your move, closure and statement-download dates.
5. Retain a five-year evidence pack
FinCEN requires people who file an FBAR to keep account records for five years from 15 April of the year after the calendar year reported. The records include the account name and number, institution name and address, account type and maximum value. Keeping the submitted FBAR with the underlying statements makes a later question far easier to answer.
For a UK departure year, keep:
- statements covering the high point for each foreign account;
- closure letters and final balances for UK accounts you no longer hold;
- exchange-rate working and the source used;
- evidence of account ownership, joint holders and any signature authority;
- your filed FBAR confirmation and the related federal return; and
- correspondence about any UK pension, investment fund, trust or company that needs specialist US classification.
Do not make a late or incomplete disclosure by guessing. If earlier FBARs or international forms were missed, the IRS has separate compliance procedures for eligible taxpayers who can certify non-wilful conduct. The right route depends on the full facts, so take advice before submitting a corrective package.
When professional advice is worth arranging
Arrange US international tax advice before filing if you have a UK pension, ISA investments, a pooled fund, a foreign company, a trust, a jointly held account with a non-US spouse, signature authority at work, or missing filings from earlier years. It is also sensible to get advice if you are returning to a US state while retaining UK income or property.
The objective is not to produce more forms than necessary. It is to keep enough evidence to apply the right threshold to the complete year and to distinguish an account report from a tax calculation.
A clean filing order
- List every foreign account held or controlled at any point in the calendar year.
- Download statements and record the maximum local-currency balance before any closure.
- Convert each maximum using the applicable official exchange-rate method.
- Run the aggregate FBAR threshold, then test Form 8938 separately.
- Match interest, gains and other income to the federal return and credit analysis.
- File through the correct FinCEN and IRS routes, and save confirmations.
- Keep the account file for the required period and seek advice before correcting older years.
The move can simplify your banking, but it should not shorten the reporting year in your records. A complete account inventory made before closure gives you the facts needed to file correctly and move on.