Compare · Mexico vs United States
Mexico vs United States for Australians leaving home
Mexico:Worldwide taxAU tax treatyUnited States:Worldwide taxAU tax treaty
Mexico and United States run the same headline regime, worldwide tax, so the decision turns on the details underneath: what each one does to capital gains, dividends and the Australian income you keep.
Both have a tax treaty with Australia, so either way you get a tie-breaker if the ATO contests your departure, and capped withholding (15%/10% vs 15%/10% on unfranked dividends/interest).
Mexico is the cheaper place to live day to day, roughly 55% of Sydney's basket against United States's 115% (indicative, ex-rent), which can outweigh a thinner tax saving over a full household budget.
Personalise this, enter your numbers once and every figure below becomes yours: “your estimated income tax: $14,200”, not “0, 22%”. Open the Country Comparison tool →
| 2 destinations | MexicoMexico | United StatesUnited States |
|---|---|---|
| Tax | ||
| Regime | worldwide, taxes worldwide income | worldwide, taxes worldwide income |
| Income tax on salary | Progressive 1.92% to 35% (top rate from roughly MXN 4.5m ≈ A$390k). Employees are withheld at source; everyone else deals with SAT directly. | Federal 10, 37% plus state tax (0, 13.3%) plus FICA (7.65% employee side). A US$150k salary in California pays roughly 30%+ combined; in Texas closer to 24%. |
| Capital gains | Flat 10% on gains from shares sold through a recognised stock exchange. Off-exchange sales (private companies, real estate) are taxed at progressive rates with cost-base indexation for inflation. (10% typical) | Long-term (12+ months) federal rate 0/15/20% plus 3.8% NIIT above ~US$200k income; short-term gains at full ordinary rates. States tax gains as ordinary income, California adds up to 13.3%. (15% typical) |
| Dividends | Mexican dividends: 10% withholding on the net dividend, on top of 30% corporate tax already paid. Foreign dividends and interest are taxed at your progressive marginal rate, Australian franking credits mean nothing to SAT. | Qualified dividends at 15% (20% top). Australian franking credits are invisible to the IRS, franked dividends are just taxable income with a credit for the AU WHT. |
| Interest | Taxed locally around 35% | Taxed locally around 24% |
| Crypto | No dedicated crypto regime: SAT treats disposals as ordinary income or alienation-of-goods gains at progressive rates up to 35%, the 10% exchange rate does not apply to crypto. Guidance is thin; get Mexican advice before realising anything large. | Crypto is property: every disposal (including spending and swaps) is a capital gains event, short-term gains at ordinary rates, long-term at 0/15/20%. Broker reporting to the IRS is now systematic. |
| Australia tax treaty | Yes, AU withholding capped at 15% dividends / 10% interest, tie-breaker available | Yes, AU withholding capped at 15% dividends / 10% interest, tie-breaker available |
| Social security | IMSS social security applies to Mexican employment (employer-heavy contributions); self-employed expats generally sit outside it and buy private cover instead. | FICA (6.2% social security capped + 1.45% Medicare uncapped) applies to US employment; a totalisation agreement with Australia prevents double super/social security in most postings. |
| Visa | ||
| Best pathways |
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| Visa ease | 8/10 | 6/10 |
| Family on visas | Dependants covered on main pathways | Dependants covered on main pathways |
| Fastest timeline | ~2 months on the quickest pathway | ~2 months on the quickest pathway |
| Money | ||
| Rent (family home, monthly) | $3,800/mo | $7,500/mo |
| Rent (couple, monthly) | $2,200/mo | $4,500/mo |
| International school (per child/yr) | $20,000 | Free / local system viable |
| Health cover (family/yr) | $6,000 | $20,000 |
| Cost of living vs Sydney | 55% of Sydney (ex-rent) | 115% of Sydney (ex-rent) |
| Relocation one-off | ~$18,000 | ~$30,000 |
| Flights home (return, pp) | $2,500 | $2,000 |
| Life | ||
| Timezone vs AEST | 16h behind | 18h behind |
| Flight from Sydney | ~16 hours | ~13.5 hours |
| English | 5/10 | 10/10 |
| Safety | 5/10 | 6/10 |
| Healthcare | 7/10 | 8/10 |
| Schooling | 7/10 | 8/10 |
| Climate | Mexico City sits at 2,240m: mild "eternal spring" year-round, a wet season May, October, and air quality that varies. Coastal Mexico is a different, hotter story. | Continental spread, LA is 20, 28°C and sunny most of the year; pick your city, pick your climate. |
Costs, rates and visa figures are country-module data marked indicative until individually verified; FX and rental markets move constantly.
Honest downsides, side by side
Every destination hub on this site carries its downsides in the open. Here are both lists together, because the right question is rarely “which is better?” and usually “which set of problems would you rather live with?”
Mexico
- Security is genuinely region-dependent: Mexico City neighbourhoods, Mérida and Querétaro feel safer than their reputation; other states are on the DFAT do-not-travel list. Where you live matters more than the country average.
- Bureaucracy runs in Spanish, SAT registration, CFE electricity accounts, banking, INM renewals. Without workable Spanish or a good gestor/accountant, routine admin becomes a part-time job.
- It is about as far from Australia as you can get: ~16 hours flying, a 15, 17 hour time-zone gap that inverts your working day against AEST, and A$2,500 flights making "quick trips home" neither quick nor cheap.
- The cost of living is roughly half of Sydney, but so are local salaries; this is a destination for imported income, not for building a local career.
United States
- This is a move for career and earnings, not tax, combined federal + state + FICA in a coastal city will roughly match or exceed your Australian rate.
- Healthcare is tied to employment and ruinously expensive without it; a family plan's premiums and deductibles can exceed A$25k/year of exposure.
- The IRS relationship is sticky: green card holders are taxed on worldwide income for life until formal surrender, and FBAR/FATCA reporting on Australian accounts carries brutal penalties for innocent omissions.
- Your superannuation is a US tax problem: no treaty article clearly protects it, and treatment (foreign grantor trust? employee trust?) is unsettled, specialist advice is non-optional.
- Gun violence, litigation culture and the cost of failure (no safety net) are real quality-of-life deductions Americans price in and Australians don't.
Make this comparison yours
The table above shows the general figures. Enter your income and family once and the tax rows become your numbers, “your estimated income tax in Mexico City: $14,200”, not a range.