Roth IRA for Americans Abroad: Why the Exclusion Can Close Your Account

A Roth IRA for Americans abroad is still available, but only against compensation you have not excluded. If Form 2555 removes your whole salary, you have nothing left to contribute from. Claim the foreign tax credit instead and the salary stays as compensation, so you can put in up to $7,500 for 2026. US expat tax returns decide which.

This is one of the quieter costs of the foreign earned income exclusion. It rarely shows up as a tax bill; it shows up years later as a retirement account that stopped growing the year you moved abroad.

Why the Roth IRA depends on how Americans abroad file

IRA contributions are capped at the lower of the annual limit and your taxable compensation for the year. IRS Publication 590-A lists what is not compensation, and it includes any amounts you exclude from income, such as foreign earned income and housing costs.

So the exclusion does not simply reduce your tax. It reduces your compensation to the same degree. Excluding £90,000 of salary from a £90,000 job leaves zero compensation, and a Roth contribution made in that year is an excess contribution, taxed at 6% for every year it stays in the account.

The IRS confirms the 2026 limits on its page for IRA contribution limits: $7,500, or $8,600 if you are 50 or older, capped at taxable compensation if that is lower.

The foreign tax credit keeps the door open

With the foreign tax credit, your salary stays on the return as compensation and UK tax cancels the US tax on it. For most people in Britain the result is the same nil US liability as the exclusion — with the Roth IRA still available.

That is the same trade-off that decides the refundable child tax credit, covered in the child tax credit for Americans abroad, and it is why the choice between the two reliefs should be made across the whole return rather than one line at a time. The full comparison is in FEIE versus the foreign tax credit, and the credit itself sits under the foreign tax credit and double taxation.

Income limits still apply

Roth contributions phase out at higher incomes. For 2025 the phase-out ran from $150,000 to $165,000 of modified AGI for single filers and heads of household, and from $236,000 to $246,000 on a joint return. Excluded foreign earned income is added back when working out modified AGI, so the exclusion does not help you get under the limit.

Above the limit, the route is the backdoor: a non-deductible traditional IRA contribution converted to Roth, explained in the backdoor Roth IRA. It still requires compensation, so it does not get around the exclusion problem.

The married-filing-separately trap

Americans married to non-citizens usually file separately. For a separate filer who lived with their spouse at any time during the year, the Roth phase-out range is $0 to $10,000 — meaning a direct Roth contribution is effectively unavailable at almost any real income.

A separate filer who did not live with their spouse at any point in the year is treated as single for this purpose. For everyone else, the backdoor route is usually the only way in, which is one more factor in the filing decision covered in married to a non-US citizen.

What the UK makes of it

A Roth IRA has no UK equivalent, and its UK treatment relies on the pension article of the US–UK treaty rather than on UK domestic law. The accepted position is that growth inside an established Roth is not taxed in the UK and qualifying distributions are treated as they would be in the US.

The position on new contributions made while you are UK resident is less settled, and many advisers are cautious about funding a Roth after the move rather than before it. That is a question to take advice on, not to assume either way.

Practical points

• Decide on the exclusion or the credit before you contribute, not after.
• If you have already contributed in an excluded year, withdraw the excess and its earnings before the return's due date, including extensions.
• Remember contributions for a year can be made up to the unextended filing deadline of 15 April following it.
• Keep a US address and brokerage that will still serve you while abroad; some close accounts for overseas clients.
• Do not replace a Roth with a UK ISA without understanding the PFIC problem — see ISA tax for US citizens.

Tranzesta models the exclusion and the credit together with your retirement contributions, so the relief you choose does not quietly close your Roth. Book a consultation before your next contribution.

Frequently Asked Questions

Can I contribute to a Roth IRA while living abroad?

Yes, if you have taxable compensation for the year. Living abroad does not stop you, but the foreign earned income exclusion does: amounts you exclude on Form 2555 are not compensation for IRA purposes, so if your whole salary is excluded, you cannot contribute for that year.

Does the foreign earned income exclusion stop Roth contributions?

Only to the extent it removes your compensation. Publication 590-A treats excluded foreign earned income and housing amounts as not being compensation. If you earn more than the exclusion limit, the taxed excess still counts, and you can contribute up to the lower of the annual limit and that excess.

How much can I put in a Roth IRA for 2026?

Up to $7,500, or $8,600 if you are 50 or older, limited to your taxable compensation if that is lower. The limit is shared across all your traditional and Roth IRAs, and Roth eligibility also phases out above set income levels that depend on your filing status.

What happens if I contributed in a year I excluded all my salary?

The contribution is an excess contribution, subject to a 6% excise tax for each year it remains in the account. You can avoid the tax by withdrawing the excess and any earnings on it by the due date of your return, including extensions, with the earnings taxable in the year the contribution was made.

Can I use a backdoor Roth if I file separately from a non-citizen spouse?

Generally yes. The backdoor route — a non-deductible traditional IRA contribution converted to a Roth — is not subject to the Roth income limits, which is why it is commonly used by separate filers whose direct Roth phase-out range is $0 to $10,000. It still requires taxable compensation for the contribution year.

Can I contribute to a Roth IRA if I live in Dubai?

Usually not directly, because with no UAE income tax most Americans in Dubai rely on the foreign earned income exclusion, which removes the compensation a contribution needs. Earned income above the exclusion limit, or income not covered by it, can still support a contribution up to the annual limit.