Basics · Account opening · Mexico

Opening a bank account in Mexico: the bank wants your residency first, some want your RFC too

What Mexican banks have to put in the customer file, why the account levels of the central bank matter, how the RFC tax number is tied to the residency card, and when Mexico is simply the wrong tool for a Plan B.

Man in his late thirties in a light linen shirt stands in the sunny courtyard of a colonial house in a small Mexican town, with colourful walls and plants, smiling at the camera

Mexico is still one of the liveliest places in Latin America to move to. Anyone who settles there needs a bank account sooner or later: for the rent, the electricity, everyday life. And that is where the first surprise waits. The bank does not ask about your money first. It asks for your residency card. Some banks also want to see the Mexican tax number, the RFC. Without either, you walk out without an account.

That is how the speakers in our video from Mexico City describe it, from their experience on the ground. Behind it there is no whim of individual branch staff but a set of rules with a clear logic: the customer file, the central bank's account levels and the tax register. Knowing the order saves you wasted appointments at the branch. And anyone who only has Mexico in mind as a Plan B soon sees that another route fits better.

Residency first, then the account

The speakers put it in one sentence: to open an account in Mexico you need a residence there, and one that holds for at least a year, which in practice means residency as a residente temporal. Some banks also require the RFC. Without it, there is no account.

The legal frame is the anti-money-laundering rulebook of Mexico's finance ministry, the Disposiciones de carácter general under Article 115 of the Credit Institutions Law. The banking supervisor, the CNBV, checks that banks comply. Under rule 4ª, the bank must build an identification file for every customer before it opens an account. The rulebook separates foreigners into two groups. Fracción I covers Mexicans and foreigners holding the condición de estancia of residente temporal or residente permanente under the Migration Law. Fracción III covers foreigners without that status: their file needs the passport, the entry document from the Instituto Nacional de Migración where they have one, and proof of their address where they live.

On paper, then, the rulebook also provides for a customer without residency. Whether a bank takes that customer on is its own decision, based on its own view of the risk. And the practice our video describes is plain: the file is built on the residency card.

What goes into the customer file

For customers with residency the rule lists the data item by item: full name, gender, date and country of birth, nationality, occupation or activity, the home address where you live with street, number, town and postcode, phone number, email and finally the CURP, the RFC or a foreign tax number together with the country that issued it, where you have them.

Then come the copies. Under the amended text published in the Diario Oficial on 10 July 2026, the identity document must be an official original, valid on the day it is shown, with photo and signature. For foreigners with residency, the rule expressly accepts the passport or the Instituto Nacional de Migración documentation of their migration status. Proof of address can be:

  • bills for electricity, phone, natural gas, property tax or water, or bank statements, none older than three months,
  • the lease that is current on the day you present it,
  • the certificate of registration in the RFC.

Here lies the practical core of the problem. Someone who has just arrived has neither an electricity bill in their own name nor a certificate from the tax authority. Their own lease is often the only document that works straight away. On the RFC, the rule only says: where available. Banks that make the tax number a condition set the bar higher than the minimum in the rules. That is their business policy, and you have to plan for it.

The account levels: why level 4 is what counts

The second layer comes from the central bank. Circular 3/2012 of the Banco de México sorts peso demand deposit accounts into levels, and the level an account gets depends on the documents provided at opening. Since Circular 11/2026, published on 17 June 2026, there are five. The limits are set in UDIS, the inflation-linked unit of account whose peso value the central bank publishes. Banks use the value on the last day of the previous month.

  • Level 1: credits of up to 750 UDIS per calendar month, with the balance never above 1,000 UDIS.
  • Level 2: credits of up to 3,000 UDIS a month.
  • Level 2 Bis: credits of up to 15,000 UDIS a month, of which no more than 3,000 UDIS in cash. Only Mexican nationals resident in Mexico may open this level.
  • Level 3: credits of up to 10,000 UDIS a month.
  • Level 4: no limit, unless the bank agrees one with you.

For the lower levels, the anti-money-laundering rules allow simplified identification. Level 1 needs only name and date of birth; level 2 adds the home address, and name and date of birth must come from an official document. These are accounts for small amounts, capped month by month. If you want rent, savings or transfers from abroad to run through the account, you need a level 4 account, and for that the full file. Circular 11/2026 says exactly this when it refers to the documentation banks must collect for level 4 accounts under the Article 115 rules.

The RFC comes through the CURP

The RFC is issued by the tax authority, the SAT. Its procedure sheet for registering individuals (ficha 39/CFF in Annex 1-A of the Resolución Miscelánea Fiscal) is clear for foreigners too. You apply in person at a SAT office, with an appointment booked beforehand, and it costs nothing. You bring an official ID, proof of address and a valid migration document, such as a residente permanente or residente temporal card. The condition is a CURP, Mexico's personal identity code. For foreigners in the country, the SAT accepts the CURP printed on their residency card.

The result is a chain you cannot shorten: residency card, then CURP, then RFC, then the bank. And the chain closes on itself, because the RFC registration certificate counts at the bank as proof of address. Once you have the RFC, you often also have the paper that was missing before.

Registering with the Mexican tax authority is more than a formality for the bank, though. Whether and from when Mexico treats you as tax resident is a separate question. Settle it before you book the appointment at the SAT.

Temporary or permanent residency: what the bank cares about

How to obtain residency is a topic of its own, and in our network the place for it is our sister site VidaLibrePlan. For the account, three points matter, as the migration authority sets them out in its guidelines on migration procedures and on its page on permanent residency:

  • The residente temporal card is valid for one, two, three or four years, depending on the application. You can renew until four years have passed since the status was granted.
  • The residente permanente card is valid indefinitely for adults.
  • Routes to permanent residency include four uninterrupted years as a residente temporal, or being a retiree or pensioner whose income allows you to live in the country.

For the bank this means one thing: the ID must be valid on the day it is shown. A card that runs out in a few weeks is a weak foundation for a new file. That is why the rule of thumb from the video fits: the residency should hold for at least a year.

What the account protects and what it reports

Once the account is open, Mexican deposit insurance applies. The IPAB, the institute for the protection of bank savings, covers according to its own statement up to 400,000 UDIS per person and per bank, automatically and free of charge. Covered are, among others, savings and current accounts, debit cards, payroll accounts and term deposits. Not covered are investments in investment funds, with insurers, savings and credit cooperatives, savings and loan companies, brokerage houses and development banks, even when they are sold in the branch of a commercial bank, and nor are crypto assets. How that compares internationally is set out in Deposit guarantees worldwide.

A Mexican account is not a discreet account, and nobody should treat it as one. According to the OECD's overview, Mexico is one of the 49 jurisdictions that began the automatic exchange of financial account information under the Common Reporting Standard back in 2017, in the same group as the United Kingdom, Denmark, Finland, Iceland, Norway and Sweden. How that exchange works is explained in CRS explained. And whatever is reported, the income from the account stays taxable where you live; what that means for your own return is covered in Declaring your offshore account.

When Mexico is the wrong route

The speakers in the video draw a clear line from all this. If you only want Mexico as a Plan B or as a pure compliance residence, the Mexican route is, in their view, hardly suitable. A different combination fits better then, for example a US company with a bank relationship in the United States. How a bank account in the USA is opened is set out on our country page. For asset protection with a Mexican connection, the speakers prefer structures in the Caribbean and the USA to anything inside the country itself.

The Mexican route pays off for people who are genuinely connected to the country. Mexico is loud and full of energy, chaotic in the big cities and beautiful in its nature, and the mentality does not suit everyone. The advice from the video is therefore simple: spend a few weeks there first, before you set residency, tax number and account in motion. And if you travel as a digital nomad without a fixed home, you already know the underlying problem; we describe it in banking without a stable address.

Opening and holding an account abroad is legal. The income stays taxable where you live, and none of this is about hiding anything. It is about the right order: residency first, then the tax number, then the bank, or an account straight away in a country that fits your plan.

Note: This article is not tax, legal or investment advice. For individual tax questions, speak to a qualified tax adviser.