US tax obligations while living in Mexico
Mexico is the single largest US expat destination globally, home to ~1.5 million US citizens. Proximity to the US, low cost of living, established expat infrastructure (especially in San Miguel, Puerto Vallarta, Mérida), and strong USD purchasing power make it ideal for retirees and digital nomads alike. No language barrier for most coastal/colonial cities.
TL;DR
Where Americans live in Mexico
Mexico hosts an approximately 1,500,000+ US expat population. The community concentrates in several cities with established expat infrastructure — international schools, English-speaking medical providers, American-style amenities, and active social communities. Below are the primary destinations.
Mexico's local tax — what you need to know
Mexico has progressive PIT up to 35%. Tax residents are taxed on worldwide income; non-residents (visiting up to 183 days) are taxed only on Mexican-source income. The Resident-for-Tax-Purposes test is based on >183 days OR Mexico being your main center of vital interests.
Special tax regime details
No special tax-resident regime, but the temporary resident visa allows working for foreign employers without registering as a Mexican tax resident if you stay <183 days/year or maintain US center of vital interests. Many digital nomads structure their stay this way.
✓ US-Mexico Income Tax Treaty in force (signed 1992 (amended 2002))
The treaty allocates taxing rights between the US and Mexico, allows Foreign Tax Credit for {country} taxes paid against US tax on the same income, and reduces withholding rates on cross-border payments (dividends, interest, royalties). The Saving Clause preserves US right to tax its citizens regardless of treaty, but most operative provisions still apply for credit / sourcing purposes. The treaty significantly simplifies double-taxation planning compared to no-treaty countries.
Social Security totalization agreement
The US does NOT have a Totalization Agreement with Mexico. This means if you're self-employed and a US citizen / Green Card holder, you owe US Self-Employment Tax (15.3% on net SE earnings up to the Social Security wage base) IN ADDITION to any {country} social security contributions. This is a significant compliance cost — planning should consider whether to incorporate locally to avoid SE Tax exposure.
Residency and visa pathways to Mexico
Temporary Resident Visa (1-4 years, renewable), Permanent Resident Visa (Residente Permanente), Digital Nomad arrangement via Temporary Resident
Banking and FATCA notes for Mexico
Mexican banks (BBVA México, Citibanamex, Santander México, Banorte) open accounts for permanent residents and temporary residents with employment. CURP (national ID) typically required. FATCA reporting in place. Many US expats keep USD accounts at Schwab International / Charles Schwab / Interactive Brokers.
FAQ — US Expats in {country}
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