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What NOT to Do in Mexico: 40+ Mistakes Expats Make (And How to Avoid Them)

Writer: Paul Green
Paul Green
May 9
4 min read

Updated: Aug 29

I've watched hundreds of Mexico moves succeed and a meaningful number fail, and the failures are strangely repetitive. The same dozen mistakes, over and over, most of them made before the moving truck was even loaded. Here's my honest list of what NOT to do, learned from other people's expensive lessons so you don't have to fund your own.


The 180-Day Action System exists specifically to help you avoid this list rather than learn it the hard way.

Planning Mistakes


  • Don't choose your city from YouTube.Video thumbnails select for golden-hour plazas, not Tuesday afternoons. Every city on your shortlist deserves a week of ordinary days before you commit a lease to it.

  • Don't skip the hot-season visit.Falling for Mérida in January and moving in May has ended more Mexico dreams than any visa problem ever has.

  • Don't treat the visa as an afterthought.The consulate process takes months and your bank statements age out. Start the residency paperwork before you sell the house, not after.

  • Don't ship your whole household.The container often costs more than replacing everything, arrives late, and fills a Mexican home with furniture built for a different life. Arrive light.


Money Mistakes


  • Don't buy property in year one.Rent first, six to twelve months minimum. Every experienced expat says this; every year, someone buys a dream house in the wrong neighborhood of the wrong city anyway.

  • Don't keep all your banking in one country.You need working money rails on both sides of the border: a no-foreign-fee US/Canadian account, Wise for transfers, and eventually a Mexican account.

  • Don't pay dollar prices out of habit.Anything quoted in USD, rent, tours, services, carries a foreigner premium. Learn local prices before you anchor to expat ones.

  • Don't ignore the exchange rate on big decisions.A strong peso quietly raises your cost of living 10%+. Budget with a cushion, not with the best rate you ever saw.


Legal and Bureaucratic Mistakes


  • Don't miss the 30-day canje windowafter entering on your residency visa. It's the hardest deadline in Mexican immigration and it restarts the whole process if blown.

  • Don't work on a tourist permitfor Mexican clients or employers. Foreign remote income is the tolerated gray zone; local work without permission is the kind of violation that creates real immigration problems.

  • Don't drive without Mexican liability insurance.Your US policy means nothing here, and an accident without coverage can involve detention until responsibility is sorted. It costs a few hundred dollars a year. Buy it.

  • Don't sign contracts you can't read.Leases, purchase agreements, anything notarized, get a translation or a bilingual advisor. 'I didn't understand it' has no legal force.


Cultural Mistakes


  • Don't skip Spanish.You can survive in English in a handful of enclaves; you can't belong. Even ugly, enthusiastic Spanish transforms how Mexico treats you.

  • Don't lead with how things work 'back home.'Nobody moved you here to consult on that. The expats locals genuinely embrace are the ones who arrived curious instead of corrective.

  • Don't build a 100% expat bubble.It's the comfortable default in San Miguel or Chapala, and it quietly walls you off from the country you moved for. Join something Mexican, a class, a gym, a volunteer crew.

  • Don't mistake politeness for agreement.'Ahorita' and 'sí, claro' are social lubricant, not commitments. Learning this early saves years of confusion.


The Meta-Mistake Behind All of Them


Almost every item above is the same error in different clothes: treating the move as a vacation with extra steps instead of a life project that deserves planning. The people who thrive here did the unglamorous work, the scouting trips, the paperwork sequencing, the Spanish apps, the rental patience, and then got to enjoy the beautiful part with a foundation under it. That sequencing is literally what my 180-Day Action System lays out, and steering people around this exact list is half of every Reality Check session I run.


ESSENTIAL RESOURCES







This article may contain affiliate links. If you buy or book through them, MyMexicoMove.com may earn a commission at no extra cost to you. We recommend only services that are relevant to your Mexico move.


Already Made One? The Recovery Playbook


Here's what fifteen-plus years around expats has taught me: almost every mistake on this list is recoverable, and the damage is usually proportional to how long people hide it. Triage in this order — legal status first (an expired document gets worse every week; a visit to INM or a facilitator gets it moving again), money second (bad exchange habits and wrong accounts are fixed in an afternoon once you decide to), housing third (a bad lease has an end date; a bad neighborhood has moving trucks). The mistake that actually costs people their Mexico dream isn't any single item above — it's the shame spiral of pretending everything's fine until small problems compound. Ask for help early. Everyone here has a story; yours won't even rank.


If you're mid-mistake right now and want a judgment-free triage session, that's exactly what the Mexico Reality Check is for. And the Master Guide exists so the next forty mistakes stay theoretical.


If you want a person to check your plan, see the services I offer.

About Paul Green


Guanajuato resident since 2018. Many expats guided. All guides from firsthand experience.paul@mymexicomove.com

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