Tax Specialists for American Expats FEIE — The 2026 Guide |

Introduction

Every US expat tax forum, every off-the-shelf US-only CPA, and every chatbot defaults to one answer when an American moves abroad — "elect the Foreign Earned Income Exclusion on Form 2555." For UK higher-rate earners, that default is almost always the worst long-term option, and it costs UK-resident Americans tens of thousands of dollars over a typical five-year assignment in the UK. Tax specialists for American expats FEIE know when Form 2555 wins, when Form 1116 Foreign Tax Credit wins, and how to model the choice properly before locking it in — because the FEIE election is largely irreversible once made and the consequences run for years.

This guide is written for US citizens, Green Card holders, and US-tax-resident individuals living abroad — including UK-based Americans, dual US-UK citizens, and US expats considering the FEIE election for the first time. By the end, you will know how FEIE works, when it wins, when FTC wins, and how to make the right choice. For broader context, see our cross-border tax service page.

What Are Tax Specialists for American Expats FEIE

Tax specialists for American expats under FEIE are cross-border tax advisers with deep expertise in the Foreign Earned Income Exclusion under Internal Revenue Code Section 911 and its interaction with Form 1116, the Foreign Tax Credit, foreign-country tax systems, and the broader US expat compliance framework. The FEIE allows qualifying US persons working abroad to exclude up to $130,000 of foreign earned income from US taxable income for 2025 ($126,500 for 2024 — the cap is inflation-adjusted annually under IRC Section 911(b)(2)(D)). The IRS Form 2555 instructions sit at https://www.irs.gov/forms-pubs/about-form-2555.

The election is made annually on Form 2555 attached to Form 1040. It requires the taxpayer to meet either the Physical Presence Test (330 full days outside the US during any 12 months) or the Bona Fide Residence Test (uninterrupted bona fide residence in a foreign country for an entire tax year). The exclusion applies only to foreign-earned income — salary, wages, and self-employment income — and does not apply to passive income such as dividends, interest, capital gains, or pension distributions.

This matters in 2026 because FEIE elections have now locked in a five-year-plus trajectory. Under Treasury Regulation 1.911-7(b), once made, the election continues until formally revoked, and revocation prevents re-election for five tax years without IRS permission. Getting the year-one choice wrong, therefore, compounds across multiple years.

Why Tax Specialists for American Expats FEIE Matter More Than Ever in 2026

Three drivers make proper FEIE versus FTC modeling urgent in 2026.

First, the FEIE cap of $130,000 for 2025 has not kept pace with global salary inflation for senior expat roles. UK higher-rate earners on £140,000-plus London salaries now routinely exceed the cap, meaning the residual income above the FEIE limit still needs Form 1116 FTC treatment — which raises the question of why FEIE was elected at all rather than running FTC across the entire salary. The IRS Section 911 cap history sits at https://www.irs.gov/individuals/international-taxpayers/foreign-earned-income-exclusion.

Second, FEIE elections disqualify the elected portion of earned income from Roth IRA contributions. Excluded income does not count as compensation for IRC Section 219 IRA contribution purposes, which means a US expat electing FEIE on the full $130,000 of UK salary often loses the ability to contribute to a Roth IRA at all. For a UK-based American making the maximum Roth contribution of $7,000 per year, the lost tax-advantaged retirement savings compound to material figures over a UK assignment. The IRS Roth IRA contribution rules sit at https://www.irs.gov/retirement-plans/plan-participant-employee/retirement-topics-ira-contribution-limits.

Third, FTC carryforwards under IRC Section 904(c) run for ten years and can offset future US tax on US-source income such as US dividends and US capital gains. FEIE produces no equivalent carryforward — the excluded income simply disappears from the US calculation, generating no future value. For UK higher-rate earners where UK tax exceeds US tax on the same income (which is almost always the case at £40,000-plus UK income), FTC builds a substantial excess credit pool that FEIE never creates. For wider analysis, see our news page.

How FEIE Actually Works Under IRC Section 911

Qualifying for FEIE — Physical Presence Test vs Bona Fide Residence Test

To claim FEIE on Form 2555, the taxpayer must meet either the Physical Presence Test or the Bona Fide Residence Test. The Physical Presence Test requires 330 full days outside the United States during any 12 months — this is a strict day count, with partial days in the US counting against the qualifying period. The Bona Fide Residence Test requires uninterrupted bona fide residence in a foreign country for an entire US tax year (1 January to 31 December for calendar-year filers). It is usually met by long-term UK residents who have established a UK home, UK employment, UK family ties, and the intention to stay indefinitely.

For US-to-UK arrivers in the first year of UK residence, the Physical Presence Test is typically the only available route, as the Bona Fide Residence Test requires a full US tax year of foreign residence. From the second UK calendar year onwards, Bona Fide Residence usually becomes available and is the more flexible test for long-term expats.

What FEIE covers and excludes

FEIE covers only foreign-earned salary, wages, self-employment net profit, professional fees, and certain housing allowances. The 2025 cap is $130,000 per qualifying individual (joint filers can double the cap if both spouses qualify and work abroad). FEIE does not cover passive income — US-source dividends, UK rental income, US capital gains, US Social Security, UK State Pension, UK workplace pension distributions, US Roth IRA distributions, or US 401(k) distributions all remain fully taxable on Form 1040 even when FEIE is elected. Self-employed taxpayers who elect FEIE still owe the US Self-Employment Tax under IRC Section 1401 on the same income unless a Totalization Agreement Certificate of Coverage applies.

The FEIE housing exclusion

In addition to the income exclusion, FEIE includes a housing exclusion under IRC Section 911(c) covering qualifying employer-paid or employer-reimbursed housing costs above a base amount. The 2025 base figure is approximately $20,800, and the cap on the additional exclusion varies by location (London is one of the high-cost cities with an enhanced cap above the standard limit). The housing exclusion is often the single most valuable element of FEIE for US expats on employer-paid London accommodation.

Step-by-Step: How Tax Specialists for American Expats Run the FEIE vs FTC Decision

The first step is the foreign earned income inventory. The specialist documents all sources of earned income — UK salary, self-employment income, professional fees, employer-provided housing benefits in kind — alongside any non-earned income that will not benefit from FEIE regardless (US dividends, UK rental, US Social Security, pension distributions).

The second step is analyzing the qualifying test. Physical Presence Test eligibility is scored on the UK day count; Bona Fide Residence Test eligibility is scored on the underlying facts — UK home, family ties, UK employment, indefinite-stay intention. The IRS publication on US citizens abroad, covering both tests, is available at https://www.irs.gov/publications/p54.

The third step is the five-year FEIE versus FTC projection. The specialist models projected UK income, projected UK tax paid via PAYE or Self Assessment, projected US-source dividend and capital gain income, and Roth IRA contribution capacity over a five-year window. The model calculates the total US federal tax under each election across the period.

The fourth step is the eligibility test for Roth IRA contributions. Under IRC Section 219, contribution eligibility requires compensation that has not been excluded under FEIE. Excluding $130,000 of UK salary under FEIE may eliminate Roth contribution eligibility; running Form 1116 FTC instead preserves it.

The fifth step is the FTC carry-forward valuation. Form 1116 FTC carryforwards under IRC Section 904(c) run for ten years and can offset future US tax on US-source dividends, US capital gains, or other US-source income that arises during the UK assignment. The model quantifies the projected carry-forward value.

The sixth step is the election lock-in analysis. Once elected, FEIE continues until revoked under Treasury Regulation 1.911-7(b), and revocation prevents re-election for five tax years without IRS permission. The specialist confirms the election direction reflects the long-term plan, not just year-one optics.

The seventh step is the election filing on Form 2555 attached to Form 1040 (if FEIE is the chosen direction) or Form 1116 (if FTC is the chosen direction). For first-year elections, the choice is locked in for the ongoing application.

Real-World Example — Tax Specialists for American Expats FEIE in Practice

Case Study: A US Citizen in London Modeled FEIE vs FTC Over Five Years

Michael is a US citizen, aged thirty-eight, working as a senior consultant for a London-based strategy firm on a £148,000 salary. He moved from New York to London in March 2024 and met the Physical Presence Test for the 2024 US tax year by November 2024. His US-based CPA in New York had filed his 2023 return without expat treatment and was planning to elect the Form 2555 FEIE for 2024 as the default expat approach. Michael also held a Charles Schwab brokerage account worth $185,000, generating approximately $4,800 in annual US dividends; a Vanguard Roth IRA in which he had been contributing the annual maximum; and a Fidelity 401(k) from his previous US employer worth $98,000.

He engaged US-UK Tax in October 2024 after a colleague at his London firm questioned the default FEIE approach. The first specialist call ran the five-year FEIE versus FTC projection.

Under the FEIE path, his UK salary of £148,000 (approximately $186,000) would have produced $130,000 of excluded income and $56,000 of residual income still subject to US tax — the residual would still need Form 1116 FTC treatment because UK tax already paid on it via PAYE would credit against US tax. His Roth IRA contribution eligibility would be eliminated because the $130,000 of excluded income would not count as compensation under IRC Section 219, and his $56,000 of residual income would not produce enough Roth eligibility, either, because he was filing single with income above the Roth income phase-out. Total projected US federal tax across five years under FEIE: approximately $14,200.

Under the Form 1116 FTC path, the full $186,000 of UK salary would be credited against UK tax paid, reducing US tax. UK higher-rate tax of approximately £54,000 per year ($68,000) far exceeded the equivalent US tax of approximately $36,000, generating an annual excess FTC of $32,000 that built up as a ten-year carryforward under IRC Section 904(c). The carry-forward could offset US tax on his Charles Schwab dividends ($4,800 per year), any US-source capital gains, and any future US-source income arising during the UK assignment. Roth IRA contribution eligibility was preserved because no income was excluded under FEIE — the full $186,000 counted as compensation. He could continue contributing $7,000 per year to his Roth. Total projected US federal tax across five years under FTC: approximately $0 (excess FTC absorbed the US tax on dividends), plus a five-year accumulated $160,000 of excess FTC carryforward available against any future US-source income, plus $35,000 of additional tax-advantaged Roth retirement savings over five years.

The outcome was a Form 1116 FTC election for 2024 instead of the default Form 2555 FEIE, with Form 8833 disclosing the treaty positioning under Articles 4, 14, and 24 of the US-UK Income Tax Convention, Form 8938 FATCA reporting on his new UK accounts, FBAR via FinCEN, and a five-year cross-border plan mapping continued FTC application against the projected UK assignment trajectory. Quantifiable five-year value of switching from default FEIE to optimized FTC: approximately $14,200 in US tax savings, plus $35,000 in Roth retirement savings, plus $160,000 of excess FTC carry-forward assets. The total US-UK Tax fee is approximately £3,200 for the integrated engagement against a quantifiable five-year value exceeding $50,000.

Common Mistakes People Make With FEIE

The first mistake is electing FEIE by default without modeling FTC. The US-only CPA reflex is to elect FEIE on the first Form 2555 they prepare for a client moving abroad, but for UK higher-rate earners, FTC almost always wins on a five-year model.

The second mistake is failing to count the 330-day Physical Presence Test. The Test requires 330 full days outside the United States during any 12-month period, and partial days in the US (travel home, business trips, holidays) count toward the qualifying period. US-to-UK arrivers frequently fail the Test in year one because of UK arrival visits to the US in the months before relocation.

The third mistake is losing Roth eligibility for RA contributions to FEIE without realizing it. Excluded income does not count as compensation under IRC Section 219, and FEIE elections regularly eliminate Roth contributions worth $7,000 per year of tax-advantaged retirement savings.

The fourth mistake is failing to claim the FEIE housing exclusion alongside the income exclusion. The housing exclusion under IRC Section 911(c) covers employer-paid or employer-reimbursed housing costs above a base amount, and London is a high-cost location with an enhanced cap above the standard limit. The IRS housing exclusion guidance sits at https://www.irs.gov/individuals/international-taxpayers/foreign-housing-exclusion-or-deduction.

The fifth mistake is revoking FEIE without understanding the five-year re-election bar. Under Treasury Regulation 1.911-7(b), once FEIE is revoked, the taxpayer cannot re-elect for five tax years without the IRS's permission. Revocations made without specialist input frequently lock the taxpayer out of FEIE at exactly the wrong moment in a UK assignment.

The sixth mistake is using FEIE for self-employed income without obtaining a US-UK Totalization Agreement Certificate of Coverage from HMRC. FEIE excludes income for income tax purposes but does not eliminate the US Self-Employment Tax under IRC Section 1401. UK self-employed expats still owe US SE Tax unless the Certificate of Coverage confirms UK Class 2 and Class 4 NI apply instead.

How US-UK Tax Can Help You With FEIE vs FTC Modeling

US-UK Tax is a specialist US-UK cross-border tax advisory firm. Our team holds combined UK CIOT, ATT, ACA, and ACCA qualifications alongside US IRS Enrolled Agent and CPA credentials in-house, which means a single engagement covers UK Self Assessment, UK FIG regime year-one planning, US Form 1040 with optimised Form 1116 Foreign Tax Credit or Form 2555 FEIE depending on which produces the better outcome, Form 8833 treaty disclosures under Articles 4, 14, 17, and 24 of the US-UK Income Tax Convention, Form 8938 FATCA, Form 8621 PFIC, FBAR via FinCEN, and the integrated five-year FEIE versus FTC modelling that drives the election decision.

For US expats considering or revisiting the FEIE election we deliver Physical Presence Test and Bona Fide Residence Test eligibility scoring, five-year FEIE versus FTC projection across projected UK earnings and US-source income, Roth IRA contribution eligibility analysis under IRC Section 219, FTC carryforward valuation under IRC Section 904(c), housing exclusion modelling for London-based expats, and election filing on Form 2555 or Form 1116 with full Form 8833 treaty support. You can read our broader guidance on our news page.

Get in touch with our team today at or visit https://www.us-uktax.com/services/ to discuss your situation.

Conclusion

Three takeaways matter most for US expats considering the Foreign Earned Income Exclusion in 2026. First, tax specialists for American expats FEIE know that the default reflex of electing Form 2555 on the first post-arrival US tax return is almost always wrong for UK higher-rate earners. Form 1116 Foreign Tax Credit produces materially better five-year economics through excess FTC carryforwards under IRC Section 904(c) and preserved Roth IRA contribution eligibility. Second, the FEIE election is largely irreversible once made because revocation under Treasury Regulation 1.911-7(b) prevents re-election for five tax years without IRS permission, so the year-one choice needs proper modeling before being locked in. Third, the FEIE housing exclusion under IRC Section 911(c) is the single most valuable element of FEIE for US expats with employer-paid London accommodation and is often entirely missed by US-only preparers. Get in touch with US-UK Tax today at or visit https://www.us-uktax.com/services/.

FAQs

Q: What is the Foreign Earned Income Exclusion cap for 2025 and 2026?

A: The FEIE cap is $130,000 for tax year 2025 ($126,500 for tax year 2024), inflation-adjusted annually under IRC Section 911(b)(2)(D). The 2026 figure will be published by the IRS in late 2025 / early 2026 and is expected to be slightly higher again. Joint filers where both spouses qualify and work abroad can double the cap. The housing exclusion under IRC Section 911(c) sits on top of the income exclusion, with London-based expats benefiting from an enhanced cap because London is a high-cost location.

Q: Should I elect FEIE or Foreign Tax Credit on my first US tax return after moving abroad?

A: For UK higher-rate earners (those earning above approximately £40,000), Form 1116 Foreign Tax Credit almost always wins on a five-year model. FTC credits UK tax paid against US tax on the same income, generates excess FTC carryforwards for ten years under IRC Section 904(c), and preserves Roth IRA contribution eligibility. FEIE excludes earned income up to the cap but blocks Roth contributions, produces no carryforward, and is largely irreversible once elected. A five-year FEIE versus FTC model should be run before the election is locked in.

Q: How do I qualify for FEIE under the Physical Presence Test vs the Bona Fide Residence Test?

A: The Physical Presence Test requires 330 full days outside the United States during any 12 months, with partial US days counting against the qualifying period. The Bona Fide Residence Test requires uninterrupted bona fide residence in a foreign country for an entire US tax year (1 January to 31 December for calendar-year filers). For US-to-UK arrivers in the first year of UK residence, Physical Presence is typically the only available route; from the second UK calendar year onwards, Bona Fide Residence usually becomes available and is more flexible.

Q: Does FEIE eliminate my obligation to file Form 1040 in the US?

A: No. FEIE is an exclusion claimed on Form 2555 attached to Form 1040 — the underlying filing obligation continues. US citizens and Green Card holders file Form 1040 for life regardless of foreign residence under Article 1(4) Saving Clause of the US-UK Income Tax Convention. FEIE merely reduces or eliminates the US tax liability on the excluded portion of foreign earned income, not the duty to file the return.

Q: Can I claim FEIE on UK self-employment income, and does it eliminate US Self-Employment Tax?

A: FEIE can be claimed on UK self-employment net profit on Form 2555 alongside Form 1040 and Schedule C, but it does not eliminate US Self-Employment Tax under IRC Section 1401 (15.3 percent on the first $168,600 of net SE earnings for 2024). The US-UK Totalization Agreement Certificate of Coverage from HMRC removes US SE Tax for UK-based self-employed Americans by confirming that UK Class 2 and Class 4 National Insurance apply instead. The agreement details sit at https://www.ssa.gov/international/Agreement_Pamphlets/uk.html.

Q: Can I contribute to a Roth IRA if I elect FEIE on my US tax return?

A: Often no, or only partially. Under IRC Section 219, IRA contribution eligibility requires compensation that has not been excluded under FEIE. Excluding $130,000 of UK salary under FEIE may eliminate Religibility for another contribution for the year. Form 1116 Foreign Tax Credit, by contrast, preserves the full income as compensation for Roth purposes. For UK-based Americans who want to continue Roth contributions during a UK assignment, the FTC is typically the better option.

Q: How does the FEIE housing exclusion work for London-based US expats?

A: The FEIE housing exclusion under IRC Section 911(c) allows qualifying employer-paid or employer-reimbursed housing costs above a base amount (approximately $20,800 for 2025) to be excluded from US taxable income in addition to the $130,000 income exclusion. London is one of the high-cost cities with an enhanced cap above the standard limit, reflecting the high rental costs in central London. The housing exclusion is often the single most valuable element of FEIE for US expats on employer-paid London accommodation, and is frequently missed by US-only preparers.

Q: Can US-UK Tax help me model FEIE versus FTC before I lock in my first post-arrival election?

A: Yes. We run integrated five-year FEIE versus FTC projections covering projected UK earnings, projected UK tax paid via PAYE or Self Assessment, projected US-source dividend and capital gain income, Roth IRA contribution eligibility under IRC Section 219, FTC carryforward valuation under IRC Section 904(c), and housing exclusion modeling for London-based expats. The output is a clear recommendation on which election to lock in for year one, with the underlying numbers documented so the taxpayer understands exactly why. Contact to start with a free initial cross-border assessment.