Introduction A Tax Specialist for the US and UK who advises on foreign earned income confronts a critical strategic choice: should the client exclude foreign earned income under the Foreign Earned Income Exclusion (FEIE), or instead claim the Foreign Tax Credit (FTC) on the UK tax paid on that income? The two approaches produce dramatically […]
A Tax Specialist for the US and UK who advises on foreign earned income confronts a critical strategic choice: should the client exclude foreign earned income under the Foreign Earned Income Exclusion (FEIE), or instead claim the Foreign Tax Credit (FTC) on the UK tax paid on that income? The two approaches produce dramatically different outcomes. One eliminates the US tax but forgoes the FTC. The other preserves the FTC but exposes the income to US taxation, relying on the UK tax credit to offset the US liability. The choice depends on the client’s specific situation — their income level, the UK tax rate they pay, and their portfolio of other income and deductions.
This guide explains how a specialist Tax Specialist for the US and the UK advises clients on this election and optimizes the outcome. Visit our advisory service:
https://www.jungletax.co.uk/services/us-uk-tax/
Tax specialists for US and UK advisers understand that the FEIE and FTC elections are mutually exclusive. Clients must choose one approach. The FEIE eliminates US tax on foreign earned income up to $120,000 (2026). However, for UK-taxed income, the FTC is foreclosed by the FEIE. The FTC approach, by contrast, subjects the income to US taxation but credits the UK tax against the US liability. The best course of action for each client varies depending on their income, tax rates, and other variables.
The IRS guidance on the FEIE is at:
https://www.irs.gov/taxtopics/tc514
A basic tax software package offers no guidance on this choice. A standard accountant may recommend the FEIE without understanding whether the FTC approach would produce a better result. Only a Tax Specialist for the US and UK who models both scenarios can advise on the genuinely optimal approach for this client’s specific situation.
The Foreign Earned Income Exclusion excludes the first $120,000 (2026) of foreign earned income from US taxation. This exclusion can accrue over the course of a career and is applicable annually. Furthermore, self-employed clients can exclude an additional amount for self-employment tax. However, investment, rental, and passive business revenue are not covered by the FEIE; only earned income is.
Clients who elect the FTC on foreign earned income preserve their FTC capacity. This matters because the FTC cannot exceed the US tax on foreign-source income. Additionally, credits carry forward for up to ten years. Therefore, FTC planning requires modeling the entire portfolio of foreign-source income across multiple years.
Our guide to maximizing foreign tax credits is at:
The US-UK treaty determines how much UK tax qualifies as creditable foreign tax. Specifically, the treaty addresses the interaction between UK national insurance contributions (NICs) and US self-employment tax. Furthermore, treaty relief applies to certain types of income. Consequently, FTC planning must account for the treaty position.
The FEIE works best when the client’s foreign-earned income remains below $120,000 (2026). Moreover, the FEIE favors clients who pay higher UK tax rates. When UK income tax plus national insurance exceeds the US tax rate, the FTC approach generates excess credit. However, the FEIE eliminates that excess. Furthermore, the FEIE suits clients who plan to remain abroad for many years and accumulate tax-free income over time.
The FTC works best for clients earning more than $120,000 in foreign income. Additionally, the FTC benefits clients with investment or rental income — such income qualifies for FTC treatment even though it is ineligible for the FEIE. Additionally, the FTC, which permits the carryover of surplus credits, may be preferred by clients whose income fluctuates over time. Therefore, the FTC preserves flexibility for future tax planning.
Some clients elect the FEIE in years when foreign-earned income is below $120,000, then switch to the FTC in years when income exceeds that threshold. Accordingly, this hybrid approach requires careful year-by-year planning. Moreover, the FEIE election can be revoked, though the IRS requires special permission to revoke more than once in five years.
Sarah is a US citizen working in London as a consultant. Her employment income is £180,000 (approximately $228,000 at current rates). She pays UK income tax at 40 percent plus Insurance. Additionally, she receives £24,000 in dividend income from UK investments. Her situation presents a classic FEIE vs FTC choice.
Under the FEIE, Sarah excludes $120,000 of her employment income from US taxation. Consequently, the remaining $108,000 is subject to US federal tax at 24 percent (her marginal rate), resulting in approximately $25,920 in US liability. Furthermore, the dividend income of £24,000 (approximately $30,480) is taxed at the 15 percent qualified dividend rate in the US, resulting in approximately $4,572 in additional US liability. Therefore, the total US tax under FEIE is approximately $30,492.
Under the FTC, Sarah subjects all £180,000 of employment income to US taxation at 24 percent, resulting in approximately $54,720 in US liability. However, her UK income tax on that employment income is approximately £72,000 (at 40 percent. Furthermore, the UK income tax of $91,520 (at current exchange rates) fully offsets the US liability of $54,720. Therefore, total US tax under FTC is approximately $0, with an excess FTC carry-forward of $36,800.
The FTC approach produces better results for Sarah. Under the FTC, she pays $0 in additional US tax and preserves $36,800 in FTC carry-forward. Furthermore, that carry-forward can offset US tax on dividend income from future years or on other foreign-source income. Conversely, the FEIE approach produces $30,492 in US tax. Therefore, the FTC saves approximately $30,492 annually compared to the FEIE for Sarah’s specific situation.
Many US expats assume the FEIE eliminates their US tax burden; therefore, it is always the right choice. However, this reasoning overlooks clients earning more than $120,000 and those with investment income. Furthermore, it ignores the FTC carry-forward value. Consequently, specialist analysis is required before making this election.
UK national insurance is not income tax — yet it represents a significant tax cost. Furthermore, the treaty position determines whether national insurance qualifies as a creditable foreign tax. Therefore, FTC planning must account for the full UK tax cost, including national insurance contributions.
The FEIE covers earned income only. However, investment income (dividends, interest, and rental income) remains subject to US taxation. Furthermore, these income types generate FTC from UK-taxed income. Therefore, clients with significant investment income must model the full portfolio — not just the employment income.
Clients with variable income across years may benefit from different elections in different years. However, switching between FEIE and FTC requires IRS permission after the first revocation. Furthermore, the election is complex to track across multiple years. Therefore, planning is essential for clients with income fluctuations.
The IRS guidance on FTC is at:
https://www.irs.gov/individuals/international-taxpayers/foreign-tax-credit
Jungle Tax is a specialist US-UK cross-border tax advisory firm. Our Tax Specialist for US and UK advisers includes IRS experts and UK tax practitioners. We model both the FEIE and FTC approaches for every client’s specific situation. Furthermore, we calculate the optimal election year by year. We account for the treaty position on national insurance. Additionally, we advise on a carry-forward strategy for excess FTC. Consequently, we ensure every client claims the approach that genuinely minimizes their combined US and UK tax liability.
Read our guide to maximizing foreign tax credits:
Tax specialists for US and UK advisers recognize that the FEIE and FTC are not interchangeable. Each approach produces a different outcome depending on the client’s income, tax rates, and portfolio structure. Furthermore, the genuinely optimal approach must be modeled carefully — not assumed based on conventional wisdom.
Three points matter most. First, the FEIE eliminates US tax on foreign-earned income up to $120,000 but forecloses the FTC on UK-taxed income. Second, the FTC approach subjects income to US taxation but credits UK tax against that liability. Third, the optimal election depends on income level, UK tax rates, and the client’s portfolio of other income sources.
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It depends on your income level, UK tax rate, and other sources of income. Model both approaches — the FTC often produces better results for higher-income earners. A specialist can advise which approach fits your situation.
No. The two approaches are mutually exclusive. You must choose one for each tax year. However, you can switch between them in different years with proper planning.
No. The FEIE covers only earned income — employment and self-employment income. Investment income (dividends, interest, rental) remains subject to US taxation regardless of FEIE status.
$120,000 (2026), indexed annually for inflation. Self-employed clients may also deduct an additional amount for the self-employment tax.
Yes — under the US-UK treaty, national insurance is a creditable foreign tax. However, the treatment depends on the specific type of income and the treaty provisions. Specialist analysis is required.
Yes. Excess FTC carries forward for up to 10 years. This makes the FTC approach valuable for clients whose foreign tax exceeds their US liability in a given year.
