Working Abroad

US citizens have more options than ever for working while living abroad, but every path runs through two systems at once: the immigration rules of the host country and the citizenship-based tax system of the United States. The simplest route is keeping a US remote job or freelance client base and relocating on one of the 50+ digital nomad visas now available, most launched or expanded between 2020 and 2025. These visas legalize remote work for foreign employers without granting access to the local labor market, and their income thresholds range from roughly €2,540 per month in Croatia to $72,000 per year in South Korea. Traditional work visas remain necessary if you want to be hired by a local employer, and those typically require employer sponsorship, credential recognition, and labor-market testing. On the tax side, living abroad does not end US filing obligations. Americans overseas still file Form 1040 annually and can reduce or eliminate US income tax through the Foreign Earned Income Exclusion ($130,000 for 2025, rising to $132,900 for 2026) or the Foreign Tax Credit. The critical trap for the self-employed is that the FEIE does not touch self-employment tax: freelancers and sole proprietors owe 15.3% on net earnings for Social Security and Medicare unless they are covered by one of the 30 bilateral totalization agreements and obtain a certificate of coverage from the host country. Entity choice matters too — a US LLC stays simple (and an S-corp election can trim self-employment tax), while forming a foreign corporation triggers Form 5471 reporting with $10,000-per-year penalties and potential GILTI 'phantom income' taxation, rules that were further revised by the One Big Beautiful Bill Act effective for tax years after 2025. Practically, successful remote workers abroad plan around time-zone overlap with US clients (Latin America keeps full overlap; Europe offers mornings; Asia often means night calls), verify fixed-line internet speeds before signing leases, and watch the 183-day threshold that makes them tax residents of countries like Spain, Portugal, Greece, and Estonia — where local rates can reach 30–50%. W-2 employees also need explicit employer approval, since an employee working from another country can create payroll and permanent-establishment problems for the company. Banking (FBAR reporting), health insurance, and quarterly estimated tax payments round out the logistics that separate a sustainable expat working life from an expensive compliance mistake.

Key Points

• 1US tax filing never stops abroad: the Foreign Earned Income Exclusion shelters up to $130,000 of earned income in 2025 ($132,900 in 2026) via Form 2555, but you must pass either the Physical Presence Test (330 full days outside the US in 12 months) or the Bona Fide Residence Test (a full tax year of foreign residence).
• 2Self-employment tax survives the FEIE: freelancers and sole proprietors owe 15.3% on net earnings even when income tax is fully excluded. Relief exists only in the 30 countries with US totalization agreements, where paying into the local social security system plus a certificate of coverage exempts you from the US side.
• 3European digital nomad visa income floors (2025): Croatia €2,540/month (with a local income-tax exemption for nomads), Spain about €2,760–2,849/month (200% of minimum wage), Portugal's D8 €3,480/month (4x minimum wage), Estonia €4,500/month. Most require proof of remote employment or clients outside the host country plus health insurance.
• 4Asia's 2024 visa wave: Thailand's Destination Thailand Visa (DTV, July 2024) is a 5-year visa allowing 180-day stays with roughly $13,665 in savings; Japan's digital nomad visa (March 2024) allows 6 months but requires $68,300/year income; South Korea's workation visa requires about $72,000/year (100 million won).
• 5Business structure is a tax decision: a single-member US LLC is a disregarded entity (simple pass-through, and an S-corp election can reduce self-employment tax), while owning 10%+ of a foreign corporation triggers Form 5471 ($10,000-per-year penalties, no statute of limitations) and CFC/GILTI taxation on undistributed profits — rules revised again by the One Big Beautiful Bill Act for tax years after December 31, 2025.
• 6Staying 183+ days in one country usually makes you a local tax resident — Spain, Portugal, Greece, and Estonia all apply this rule, with income tax rates reaching 30–50% — so plan stays, treaty positions, and the Foreign Tax Credit before you hit the threshold, and remember state taxes may still apply if you keep ties to states like California.
• 7Compliance logistics stack up: FBAR (FinCEN 114) is required once foreign accounts exceed $10,000 in aggregate, FATCA Form 8938 has higher thresholds for expats, the self-employed must pay quarterly estimated taxes, and W-2 employees need employer sign-off because working from abroad can create foreign payroll and permanent-establishment exposure for the company.