Mexican tax for cross-border movers is well-defined. The harder questions for North American cases - the most common Mexican-mover profiles - involve the interaction with US tax obligations, the treaty mechanics for the overlap year, and what becomes Mexican-source after the move.
Mexican tax residence triggers
Mexican tax residence applies when:
- An individual's centre of vital interests is in Mexico, or
- More than 50% of the individual's annual income comes from Mexican sources (with specific provisions), or
- The professional activity is based in Mexico
Residents are taxed on worldwide income subject to treaty mechanics.
Non-residents are taxed on Mexican-source income only.
Treaty network
Mexico has treaties with most major source countries including the US, Canada, the UK, and many European and Latin American jurisdictions. The treaties matter for double-taxation relief and tie-breaker analysis.
US-person considerations
For US citizens and US tax-resident green card holders relocating to Mexico:
- US tax obligations continue regardless of Mexican residence
- US worldwide-income reporting and filing continues
- FBAR, FATCA, and other US reporting obligations continue
- Mexican income is reportable on the US side
- US-Mexico treaty mechanics determine which country has primary right and how relief is granted
Mexico does not eliminate US tax obligations. The cases that work cleanly are the ones that planned both sides together.
RFC and Mexican reporting
Mexican residents need RFC (Registro Federal de Contribuyentes - tax identification) and annual filings. The system has been digitalised substantially. The compliance environment rewards order.
Specific regimes
Mexico has specific tax regimes for various activities - RIF for small business (historically), employment vs self-employment treatment, real-estate income, capital gains on specific assets. The current state of available regimes must be verified.
What we tell movers
- For non-US-resident profiles: standard Mexican residence planning with treaty positioning.
- For US-person profiles: plan Mexico AND the continuing US side together. The US side doesn't resolve itself by moving.
- Plan the move date around both calendar years (US tax year is the calendar year; Mexican tax year is also the calendar year).
- Engage Mexican tax advice from the month of the move.
- For US persons, maintain US tax adviser through the move.
- Plan year-one filings on both sides.
Mexican tax works cleanly for cases that planned the entry deliberately. The US-person interaction is the most common reason cases come back for adjustment - planned together, both sides work.