The peso has inflated faster than CPI admits. Here's the real purchasing power gap.
Mexico is the top destination for US expats — but peso inflation has quietly eroded what your dollar buys at the market, the landlord, and the mechanic. This shows the real number.
When the US prints money, not all of that inflation stays domestic. Countries holding dollar reserves absorb a portion of it — effectively subsidizing US monetary policy with their own purchasing power.
As a dollar earner spending in Mexico, you benefit from the dollar's reserve status — but the local inflation trend still erodes what you buy. This calculator shows both sides.
CPI data from World Bank (indicator FP.CPI.TOTL.ZG). US M2 from Federal Reserve FRED (series M2SL). Reserve premium = cumulative M2 growth − cumulative US CPI. Estimate years use IMF World Economic Outlook projections.
If you moved to Mexico City in 2019 earning $4,000 per month remotely, here is what actually happened to your purchasing power by 2026. On paper, the exchange rate moved in your favor — the peso weakened against the dollar, meaning your dollars converted to more pesos. But that number is misleading without understanding what happened to prices on the ground.
Mexico's CPI inflation ran at 3.8% in 2019, jumped to 7.4% in 2021, and peaked above 8.7% in 2022. Compounded from 2019 to 2026, local prices rose roughly 45% in peso terms. Your rent in Condesa or Roma Norte likely doubled. Groceries, services, and anything imported got significantly more expensive. The exchange rate gain partially offset this — but only partially.
The number missing from every other calculator is the USD reserve premium. Because Mexico holds substantial dollar reserves and settles most of its international trade in USD, a portion of US monetary expansion — the 55% M2 growth between 2019 and 2026 — compounded against the peso even beyond what domestic CPI captured. Mexico is more dollar-linked than almost any economy on earth, which means it absorbs more of that premium than most.
The honest picture for a dollar earner in Mexico: you are better off here than you would be spending dollars in the US. The cost of living advantage is real. But the exchange rate headline number overstates your advantage. The real purchasing power gap, after accounting for local inflation and the reserve premium absorbed through Mexico's dollar dependency, is significantly smaller than the raw USD/MXN rate suggests. This calculator shows you the actual number — not the one the exchange boards display.