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How does the foreign tax credit work for expats?

Special Situationsadvanced3 answers · 6 min readUpdated February 28, 2026

Quick Answer

The foreign tax credit lets US expats claim a dollar-for-dollar credit against US taxes for foreign income taxes paid, up to the US tax liability on that foreign income. For example, if you paid $8,000 in UK taxes on $80,000 income, you can credit up to $8,000 against your US tax bill, potentially reducing it to zero.

Best Answer

SC

Sarah Chen, Payroll Tax Analyst

Best for Americans living abroad who pay income taxes to their country of residence

Top Answer

How the foreign tax credit prevents double taxation


The foreign tax credit (FTC) allows US expats to claim a dollar-for-dollar credit against their US tax liability for foreign income taxes paid. This prevents the same income from being taxed twice. The credit is limited to the lesser of: (1) foreign taxes actually paid, or (2) US tax liability on the foreign-source income.


Example: $80,000 salary in the UK


Let's say you're a US expat earning $80,000 working in London:


UK taxes paid: $18,500 (23% effective rate)

US tax calculation:

  • Gross income: $80,000
  • Less standard deduction (2026): $15,000
  • Taxable income: $65,000
  • US tax before credit: $9,328
  • Foreign tax credit limit: $9,328 (US tax on foreign income)
  • Credit claimed: $9,328 (limited to US tax)
  • Final US tax owed: $0

  • You paid $18,500 to the UK but can only credit $9,328 against US taxes. The excess $9,172 credit carries forward for up to 10 years.


    Key factors that affect your credit


  • Foreign tax rate vs US rate: If foreign taxes exceed US taxes on the same income, the excess carries forward. If foreign taxes are lower, you pay the difference to the US.
  • Type of foreign tax: Only income taxes qualify. VAT, sales taxes, and property taxes don't count.
  • Income sourcing rules: The credit only applies to foreign-source income. US-source income (like rental property in the US) doesn't qualify.
  • Alternative minimum tax: The FTC can reduce AMT liability, but different limitation rules apply.

  • Foreign tax credit vs foreign earned income exclusion


    You can choose between the foreign tax credit and the foreign earned income exclusion (FEIE), but not both for the same income. In 2026, the FEIE excludes up to $130,000 of foreign earned income from US taxation entirely.


    Choose the credit when:

  • Foreign tax rates are higher than US rates
  • You have investment income (not eligible for FEIE)
  • You want to claim certain tax credits that require taxable income

  • Choose the exclusion when:

  • Foreign tax rates are very low or zero
  • Your income exceeds the FEIE limit and foreign taxes are low

  • What you should do


    1. Track all foreign taxes paid - Keep receipts for income taxes withheld or paid directly

    2. File Form 1116 - This calculates your foreign tax credit limitation

    3. Consider both options - Run the numbers for FTC vs FEIE to see which saves more

    4. Plan for carryovers - Unused credits can be valuable in future years


    Use our [paycheck calculator](paycheck-calculator) to model your US tax liability and compare strategies.


    Key takeaway: The foreign tax credit provides dollar-for-dollar relief up to your US tax on foreign income, but choosing between the credit and exclusion requires careful analysis of your specific tax rates and income mix.

    *Sources: [IRS Publication 514](https://www.irs.gov/pub/irs-pdf/p514.pdf), [Form 1116 Instructions](https://www.irs.gov/pub/irs-pdf/i1116.pdf)*

    Key Takeaway: The foreign tax credit provides dollar-for-dollar relief against US taxes for foreign income taxes paid, but is limited to your US tax liability on that foreign income.

    Foreign Tax Credit vs Foreign Earned Income Exclusion comparison for different scenarios

    ScenarioForeign Tax CreditForeign Earned Income ExclusionBetter Choice
    $80K salary, 25% foreign tax rate$0 US tax, $7K carryover$0 US tax (within exclusion)Exclusion (simpler)
    $150K salary, 35% foreign tax rate$0 US tax, $15K carryover$3K US tax on $20K excessCredit saves $3K
    $100K salary + $30K investment, 30% foreign tax$0 US tax, $8K carryover$5K US tax on investment incomeCredit saves $5K
    $60K salary, 5% foreign tax rate$8K US tax owed$0 US tax (within exclusion)Exclusion saves $8K

    More Perspectives

    MR

    Marcus Rivera, Compensation & Benefits Analyst

    Best for expats with substantial foreign investment income or high salaries exceeding FEIE limits

    Why high earners usually prefer the foreign tax credit


    For expats earning $150,000+, the foreign tax credit often provides better tax relief than the foreign earned income exclusion. Here's why:


    Income above FEIE limits: The 2026 FEIE excludes only $130,000 of earned income. If you earn $200,000, you'll owe US tax on $70,000 regardless. The FTC can offset taxes on the entire amount.


    Investment income: The FEIE only covers earned income (salary, self-employment). Investment income, bonuses, and stock compensation are always taxable in the US. The FTC can offset US taxes on foreign investment income.


    Example: $180,000 salary + $20,000 investment income in Germany


    German taxes paid: $75,000 (37.5% effective rate)

    US tax calculation with FTC:

  • Total income: $200,000
  • US tax before credit: $35,739
  • Foreign tax credit: $35,739 (limited to US tax)
  • US tax owed: $0
  • Excess credit carryover: $39,261

  • Compared to FEIE strategy:

  • FEIE exclusion: $130,000 (maximum)
  • Taxable income: $70,000 ($50K salary + $20K investment)
  • US tax owed: ~$8,500

  • The FTC saves an additional $8,500 in this scenario.


    Advanced strategies for high earners


  • Basket limitations: Different types of income (passive vs active) have separate FTC limits. Investment income often has lower foreign tax rates, so manage the mix carefully.
  • AMT considerations: High earners may face alternative minimum tax, which has different FTC rules.
  • State tax planning: Some US states don't recognize the FTC, potentially creating additional liability.

  • Key takeaway: High earners with income above $130,000 or significant investment income typically benefit more from the foreign tax credit than the foreign earned income exclusion, especially in high-tax countries.

    Key Takeaway: High earners typically benefit more from the foreign tax credit than the foreign earned income exclusion, especially when earning above $130,000 or having significant investment income.

    SC

    Sarah Chen, Payroll Tax Analyst

    Best for digital nomads or remote workers who move frequently between countries

    Special challenges for mobile remote workers


    Remote workers who move frequently face unique foreign tax credit complications:


    Tax residency issues: Each country has different rules for when you become tax resident. Some require payment even for short stays, while others have minimum day thresholds (usually 183 days).


    Partial year credits: If you live in multiple countries during the tax year, you may have foreign tax credits from each country on different portions of your income.


    Example: Digital nomad earning $90,000


    January-June in Portugal: $45,000 income, $8,100 Portuguese tax (18% rate)

    July-December in Thailand: $45,000 income, $0 Thai tax (no tax treaty, under threshold)


    US tax calculation:

  • Total income: $90,000
  • US tax before credits: $13,578
  • FTC available: $8,100 (only from Portugal)
  • US tax owed: $5,478

  • Key considerations for nomadic workers


  • Document everything: Keep records of days in each country, local tax payments, and tax residency certificates
  • Plan your moves: Consider timing moves around tax residency thresholds and treaty benefits
  • State tax complications: US state tax obligations may continue even if you qualify for federal credits
  • Social security treaties: These are separate from income tax treaties and affect self-employment tax

  • The foreign tax credit can still provide significant relief, but requires more complex planning and documentation when you're mobile.


    Key takeaway: Mobile remote workers can use the foreign tax credit but need careful tracking of tax residency in each country and may have credits from multiple jurisdictions in a single tax year.

    Key Takeaway: Mobile remote workers can benefit from foreign tax credits but need careful tracking of tax residency and may have credits from multiple countries in one tax year.

    Sources

    foreign tax creditexpat taxesinternational taxationdouble taxation

    Reviewed by Sarah Chen, Payroll Tax Analyst on February 28, 2026

    This content is for educational purposes only and is not a substitute for professional tax advice. Consult a qualified tax professional for advice specific to your situation.