US Contractor Abroad: FEIE, Self-Employment Tax and Double Taxation Explained

The Foreign Earned Income Exclusion (FEIE) is the mechanism US citizens use to reduce federal income tax liability while working abroad. For IT contractors on significant rates, it can represent a substantial tax saving - potentially eliminating federal income tax on most or all of their earnings. But the self-employment tax obligation and the interaction with local country taxes mean the picture is considerably more complex than the headline figures suggest.

How the FEIE works in 2026

For the 2026 tax year, US citizens who qualify can exclude up to $132,900 of foreign earned income from US federal income tax. Qualification requires passing either the Physical Presence Test (spending 330 or more days outside the US in any 12-month period) or the Bona Fide Residence Test (establishing genuine residency in a foreign country for a full calendar year). A digital nomad visa helps demonstrate intent for the Bona Fide Residence Test, though it does not automatically satisfy it.

For a US IT contractor earning $200,000 per year working from Spain or Portugal, the FEIE could eliminate federal income tax on the first $132,900 of earnings. The remaining $67,100 would be subject to federal income tax at the applicable marginal rate. On the full $200,000, a US-based contractor would pay approximately $45,000 to $50,000 in federal income tax. The FEIE reduces this to approximately $15,000 to $18,000 on the amount above the exclusion - a saving of $30,000 or more annually.

The self-employment tax problem

The most important and frequently misunderstood aspect of FEIE planning is that the exclusion eliminates federal income tax but does not eliminate self-employment tax. US contractors who are self-employed pay 15.3% in Social Security and Medicare contributions on their net self-employment income - the employer and employee portions combined. On $132,900 of excluded income, that represents approximately $20,000 in SE tax that the FEIE provides no relief for.

The only legal mechanism to reduce SE tax for US contractors abroad is to operate through a foreign corporation and pay yourself a salary - a structure that requires specialist legal and tax advice and is typically only cost-effective at income levels above $150,000 to $200,000 annually. For most contractors, SE tax is simply a cost of being self-employed and working abroad.

The local country tax interaction

Most digital nomad visa countries do not impose income tax on foreign-source earnings for visa holders - this is frequently one of the explicit attractions of the programme. Spain's Beckham Law taxes local income at 24% and exempts foreign income. Portugal's NHR scheme offered favourable treatment, though it was modified for new applicants after 2024. Croatia, Georgia and several Caribbean nations explicitly exempt digital nomads from local income tax.

However, spending more than 183 days in a country typically triggers tax residency in that country - which can override any visa-specific exemptions. If you become a tax resident of a country that taxes worldwide income, you face potential double taxation exposure. The primary protection is the network of double taxation treaties that the US (and UK) maintains with most major economies - these provide mechanisms to credit tax paid in one country against liability in the other, preventing genuine double taxation in most cases.

The practical checklist

Before relocating as a US IT contractor, work through this checklist with a specialist expat tax adviser. Confirm your target country's tax treatment of foreign-earned income for your visa type. Verify the applicable double taxation treaty between the US and your target country. Calculate your SE tax liability regardless of FEIE eligibility. Assess whether your FEIE qualification route is Physical Presence or Bona Fide Residence and what documentation you will need. Check whether your existing client contracts require US physical presence. Confirm your business banking arrangements will function from your new location. The cost of specialist advice (typically $1,500 to $3,000 for a comprehensive expat tax plan) is small relative to the potential errors.

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Sources & further reading

1. Greenback Tax - Digital nomad visa countries 2026: US tax guide

2. IRS - Foreign Earned Income Exclusion

3. Global Citizen Solutions - Digital nomad visa 2026 guide

4. TravlFi - Digital nomad visa countries 2026: requirements, costs, taxes