I moved to Mexico in 2011, so it has been a while living here, I actually built my career and life here.
Moving to Mexico is exciting.
You have a new country to explore, a new culture, new food, new people, and possibly a completely different lifestyle.
But there is another side of moving abroad that isn’t nearly as exciting.
Getting your financial life organized.
When I first came to Mexico, I didn’t arrive with a perfect financial system or a detailed “expat wealth plan.” Like many foreigners, I learned a lot of things gradually.
After living in Mexico for many years, however, I’ve realized that there are a few financial steps that can make life considerably easier if you handle them early.
Things like getting your CURP, understanding the RFC, opening a Mexican bank account, learning how taxes may affect you, and building a financial system across two countries might seem boring.
But they form the financial infrastructure for your life in Mexico.
So if you’ve recently moved to Mexico or you’re preparing to move here are the first five financial things I would focus on.
Important notice
This article is educational and based partly on my experience living in Mexico. Immigration, tax, banking, and investment situations vary significantly from person to person.
Speak with a qualified Mexican accountant (contador) and, where necessary, an immigration or tax lawyer about your particular situation.
The First 5 Financial Things to Do When You Arrive in Mexico as a Foreigner
If you’re a foreigner establishing yourself in Mexico, I would prioritize these five things.
- Get your CURP and organize your Mexican identification documents.
- Understand your RFC and Mexican tax situation.
- Open a Mexican bank account.
- Build an emergency fund and a two-currency money system.
- Create a long-term plan for saving, investing, insurance, and retirement.
The order may vary depending on your immigration status and whether you’re working, retired, running a business, or earning income abroad.
But don’t make the mistake of treating these as five unrelated administrative tasks.
Together, they create your financial foundation in Mexico.
Get Your CURP and Organize Your Mexican Documents
Before worrying about investments, credit cards, or optimizing exchange rates, start with something much more basic:
Your documents.
For foreigners living in Mexico, one of the most important identifiers is the CURP (Clave Única de Registro de Población).
Foreigners who obtain temporary or permanent resident status can be assigned a CURP through Mexico’s immigration system.
According to the Mexican government, the CURP for temporary and permanent foreign residents is assigned when the Instituto Nacional de Migración (INM) issues the corresponding foreigner identification number, or NUE.
Think of your CURP as one of the keys that connects you to many systems in Mexico.
You may encounter it when dealing with employers, government agencies, banks, healthcare providers, tax procedures, and other services.
Check Your CURP Carefully
Don’t simply assume that everything is correct.
Verify your the following information
- Full name
- Date of birth
- Nationality
- Sex
- CURP number
- Immigration documentation
You can consult and print your CURP through the Mexican government’s CURP service.
Check your CURP on the Mexican government website
Create a “Mexico Financial Documents” Folder
I strongly recommend creating both a physical folder and an encrypted digital folder containing copies of important documents such as your:
- Passport
- Temporary or permanent resident card
- CURP
- RFC documents
- Constancia de Situación Fiscal
- Proof of address (comprobante de domicilio)
- Bank documents
- Insurance policies
- Employment documents
- Tax filings
- e.firma documentation, if applicable
One lesson you quickly learn in Mexico is that documentation matters.
A document you haven’t needed for two years can suddenly become extremely important when opening an account, completing a tax procedure, buying property, or setting up a company.
Understand Your RFC and Mexican Tax Situation
The second priority is something many foreigners postpone. Two things that are guaranteed in life are death and Taxes.
Taxes.
You should understand two separate concepts:
Your immigration status and your tax status.
They are related in some situations, but they are not the same thing.
Your RFC (Registro Federal de Contribuyentes) is your Mexican tax identification number.
Foreigners can register for an RFC, and SAT’s current requirements for individuals specifically contemplate foreign applicants using a valid immigration document. SAT also lists acceptable forms of proof of address for RFC registration.
SAT information about RFC registration for individuals
Don’t Assume “I’m a Foreigner” Means “I Don’t Pay Mexican Taxes”
This is where things can become complicated.
Tax residency is not determined simply by the passport you carry.
SAT explains that residence questions can depend on factors such as whether you maintain a home in Mexico and, when homes exist in more than one country, where your income and principal professional activities are centered.
SAT also states that foreigners who are Mexican tax residents and receive income in Mexico generally have tax obligations according to the applicable tax regime, like Mexican nationals.
That means someone earning money online while living in Mexico should not simply assume:
“The money comes from the United States, so Mexico has nothing to do with it.”
Your situation may depend on your tax residence, source and type of income, applicable treaties, business structure, and other circumstances.
This becomes particularly important if you do one of the following.
- Work remotely for a foreign company
- Freelance online
- Own an online business
- Receive affiliate commissions
- Have rental properties
- Receive dividends
- Trade stocks or cryptocurrency
- Own a company outside Mexico
- Operate a Mexican company
- Receive a pension from another country
Speak With a Mexican Accountant
This is one area where I would spend money rather than trying to figure everything out from YouTube videos and Facebook groups.
Find a competent contador who has experience with foreigners and international income.
Ask questions such as
- Am I considered a Mexican tax resident?
- Do I need an RFC?
- Which Mexican tax regime applies to me?
- Does Mexico tax my foreign income?
- What records should I keep?
- How should I handle income from foreign clients?
- Do any tax treaties apply?
- Do I need an e.firma?
- Do I need to file monthly or annual returns?
If your situation involves substantial assets, companies in multiple countries, complicated investments, or potentially competing tax residencies, consider speaking with a tax lawyer who understands international taxation as well.
Open a Mexican Bank Account
Once your documentation is in order, I would establish a local banking relationship.
You may be able to survive in Mexico using foreign cards.
But living here and building a financial life here are two different things.
A Mexican bank account can make it much easier to:
- Receive your salary
- Pay rent
- Make SPEI transfers
- Pay utilities
- Receive transfers from Mexican clients
- Pay credit cards
- Handle business expenses
- Build a financial history in Mexico
What Might a Mexican Bank Ask For?
Requirements vary between institutions and can change.
Depending on the bank and account, you may be asked for documents such as your:
- Passport
- Mexican residence card
- CURP
- RFC
- Mexican address
- Proof of address
- Mexican telephone number
Don’t assume every bank or even every branch of the same bank will handle a foreign applicant exactly the same way.
If one bank doesn’t fit your circumstances, compare alternatives.
Don’t Automatically Choose the Bank With the Nearest Branch
Look at the actual financial system you’re trying to build.
Compare:
- Monthly account fees
- Minimum balances
- ATM network
- SPEI transfers
- Mobile banking
- International transfer fees
- Foreign exchange rates
- Customer service
- Credit products
- Business banking availability
If you’re earning money internationally, you should pay particular attention to the cost of getting that money into Mexico.
A seemingly small exchange-rate difference can become significant when repeated every month.
My recommendation is to open a BBVA account, they are the biggest bank in Mexico and they are foreigners friendly.
Keep Your Foreign Account Initially
Unless you have a specific reason to close it, I wouldn’t rush to eliminate your banking relationship in your home country.
A better approach for many expats is maintaining both.
For example:
Home-country account → international transfer service → Mexican bank account
That gives you flexibility while you establish yourself.
Build an Emergency Fund and a Two-Currency Money System
Opening a bank account isn’t the same thing as having a financial system.
This is where I think many expats can improve.
If you earn dollars, euros, pounds, or another currency but spend Mexican pesos, your finances involve an additional variable:
Currency risk.
Imagine your normal monthly expenses are 30,000 MXN.
If your income is paid in USD, the number of dollars required to cover those expenses changes whenever the USD/MXN exchange rate moves.
That means you shouldn’t necessarily convert every peso you own into dollars—or every dollar you earn immediately into pesos.
Instead, build a system.
Your Mexico Emergency Fund
A reasonable starting target is three to six months of essential living expenses.
If your essential monthly expenses are 30,000 MXN, that would mean roughly:
3 months = 90,000 MXN
6 months = 180,000 MXN
Your appropriate number may be higher if your income is unpredictable, you’re self-employed, you have dependents, or most of your income comes from another country.
Keep Near-Term Expenses in Pesos
If your rent, groceries, electricity, transportation, school fees, and insurance are paid in pesos, it makes sense to have enough pesos available to cover those obligations.
Otherwise, you’re constantly forced to exchange currency regardless of whether the exchange rate is favorable.
You could create separate buckets for:
Operating money: Monthly Mexican expenses.
Emergency money: Several months of essential expenses.
Foreign-currency reserves: Money you don’t immediately need in Mexico.
Long-term investments: Money intended for future wealth rather than next month’s expenses.
This simple structure can dramatically improve financial clarity.
Create Your Long-Term Wealth Plan
Once your immediate financial infrastructure is working, ask the bigger question.
What am I actually building?
Moving to a country with a potentially lower cost of living can create an incredible opportunity.
But lower expenses don’t automatically create wealth.
You still need a plan for the difference between what you earn and what you spend.
I would think about five areas:
Emergency Savings
Build your basic safety net first.
Insurance
Understand how you would handle a major medical expense or other serious financial emergency in Mexico.
Don’t assume the healthcare or insurance system works exactly like the one in your home country.
Retirement
If you’re planning to stay in Mexico for decades, understand where your retirement income will eventually come from.
That could involve pensions, investment accounts, Mexican retirement structures, foreign retirement accounts, businesses, real estate, or some combination.
Investing
Once your emergency fund and basic financial structure are established, start putting excess capital toward productive assets appropriate to your goals and circumstances.
That might include diversified investments, retirement accounts, real estate, or businesses.
The important thing isn’t finding a magical investment.
It’s developing the habit of consistently converting income into assets.
Estate Planning
This is frequently ignored by younger expats.
But once you own property, investments, bank accounts, or businesses across multiple countries, inheritance can become complicated.
If Mexico becomes your permanent home, speak with an appropriate professional about wills, beneficiaries, property ownership, and how your assets would pass to your family.
Bonus: Start Building Mexican Credit, But Slowly
Once your Mexican banking system is established, you may eventually want to develop a local credit history.
This can make certain financial products easier to access later.
But don’t make getting multiple credit cards your first financial goal.
Start carefully.
A simple strategy is the following
Bank account → one manageable credit product → small regular purchases → full payment → gradually build history.
Avoid carrying expensive consumer debt simply to “build credit.”
Credit should become a financial tool not another monthly burden.
How To Build Credit History In Mexico From Scratch As A Foreigner
A Simple First-30-Days Financial Checklist
During your first month in Mexico, your financial priorities could look something like this:
Week 1: Organize your passport, immigration documents, CURP, proof of address, and digital copies.
Week 2: Investigate your RFC and tax situation and schedule a consultation with a qualified Mexican accountant if necessary.
Week 3: Compare Mexican banks and establish an account appropriate for your circumstances.
Week 4: Calculate your monthly Mexican expenses, establish your emergency-fund target, and decide how you’ll move money between currencies.
After that, you can begin working on the longer-term pieces: insurance, investing, retirement planning, credit, and estate planning.
The Biggest Financial Mistake I Would Avoid
The biggest mistake isn’t choosing the “wrong” Mexican bank.
It isn’t exchanging dollars on the wrong day.
And it isn’t forgetting to apply for a credit card.
The bigger mistake is living in Mexico for years without building a coherent financial system.
It’s surprisingly easy to earn money, pay rent, travel, eat out, and enjoy the lower cost of living while never actually building meaningful assets.
That’s especially dangerous for expats.
You may have financial obligations in one country, income coming from another, investments somewhere else, and living expenses in Mexico.
Without a system, your financial life becomes unnecessarily complicated.
Final Thoughts
When you arrive in Mexico, it’s tempting to focus entirely on finding an apartment, learning Spanish, exploring your new city, and figuring out where to buy the best tacos.
Enjoy that part.
But spend some time building the boring financial infrastructure too.
Get your documents organized.
Understand your CURP and RFC.
Establish local banking.
Understand your tax situation.
Build an emergency fund.
Then start turning the money you save into long-term assets.
Because moving abroad isn’t only an opportunity to change where you live.
It can also be an opportunity to redesign how you build wealth.
And that’s ultimately what Posterity Wealth is about: helping expats build a stronger financial foundation while creating a life abroad.
Frequently Asked Questions
Do foreigners in Mexico need a CURP?
Foreigners with temporary or permanent resident status can receive a CURP through the Mexican immigration system.
The Mexican government states that the CURP is assigned to temporary and permanent foreign residents when INM issues their NUE.
Can a foreigner get an RFC in Mexico?
Yes. SAT’s RFC registration requirements specifically include documentation options for foreign individuals, including valid immigration documents.
Does having Mexican residency automatically make me a Mexican tax resident?
Do not treat immigration residency and tax residency as interchangeable. Mexican tax-residence rules consider factors including whether you have a home in Mexico and, in certain cases involving homes in multiple countries, where your income and principal professional activities are centered.
Because international tax situations can become complicated, confirm your individual status with a qualified professional.
Should expats open a Mexican bank account?
For foreigners actually living in Mexico, having a local account can make everyday financial management much easier, particularly for receiving pesos, making local transfers, paying bills, and separating Mexican living expenses from foreign accounts.
How much emergency savings should I have in Mexico?
There isn’t one correct number. A practical starting point is three to six months of essential expenses, with a larger reserve potentially appropriate for self-employed people, families, retirees, or anyone whose income is volatile or earned primarily outside Mexico.
Should I keep money in pesos or dollars?
It doesn’t necessarily have to be one or the other. If your expenses are in pesos but your income or long-term assets are denominated in another currency, maintaining separate short-term and long-term currency buckets can reduce the need to make financial decisions based on short-term exchange-rate movements.
New to Mexico? Get Your Financial Life Organized
Moving abroad creates dozens of financial questions: Which bank should you use? Do you need an RFC? How should you transfer money? What about taxes and investing?
Download the Expat Wealth Starter Kit and get a simple roadmap for organizing your banking, taxes, savings, and investments while living abroad.
