What Does a Notario Público Do When You Buy Property in Mexico?

If you are buying property in Mexico, there is one person who will play a central role in your transaction:

The Notario Público.

And if you are coming from the United States, Canada or another country, there is something very important to understand:

A Mexican Notario Público is not the same as a “notary public” in many other countries.

In Mexico, a Notario Público is a highly qualified legal professional who is granted public faith (fe pública) by the State.

When you buy real estate in Mexico, the notary is one of the key legal figures responsible for formalizing the transaction and making sure that the transfer of ownership complies with Mexican law.

What Does the Notary Actually Do?

The Notario Público coordinates the legal closing process.

Among other responsibilities, the notary reviews the documentation related to the property and the parties involved, prepares the public deed (escritura pública), calculates the applicable taxes and government charges, formalizes the transaction and coordinates the registration of the new ownership with the corresponding authorities.

The notary also has important reporting obligations before Mexican authorities.

In simple terms, the notary takes the transaction from an agreement between buyer and seller to a legally formalized transfer of real estate.

The Notary and Your Closing Costs

Another important difference when buying property in Mexico is the way taxes and closing expenses are handled.

The notary calculates the taxes and government charges applicable to your particular transaction and provides the corresponding closing figures.

Where applicable, the notary receives or withholds the corresponding amounts and subsequently pays them to the appropriate authorities.

This is why the amount you pay at closing may include much more than the notary’s professional fee.

Depending on the transaction, your closing costs may include:

Property acquisition taxes, notarial fees, registration fees, certificates, appraisal costs and other government charges associated with transferring the property.

Acquisition Costs Are Not the Same Everywhere in Mexico

This is particularly important for foreign buyers to understand:

The cost of acquiring property can vary considerably depending on the state and municipality where you buy.

Mexico does not have one single nationwide percentage that you can simply add to the price of every property.

For example, a transaction in Guanajuato — where San Miguel de Allende is located — may have a very different acquisition-tax burden from a comparable transaction in Mexico City or Querétaro.

As a general market reference, you may hear figures around 2% in parts of Guanajuato, approximately 5–6% in Mexico City and considerably higher overall acquisition/closing costs in Querétaro, sometimes estimated around 8–10% depending on the transaction.

However, these percentages should never be treated as a guaranteed or universal rate.

The applicable taxes and total closing costs depend on the property value, location, applicable local legislation, appraisal and the specific circumstances of the transaction.

That is why the figure that really matters is the calculation prepared for your specific purchase by the Notario Público handling the transaction.

Ask for an Estimate Before You Buy

Imagine that your budget is MXN $5,000,000 and you find a property listed for exactly MXN $5,000,000.

That does not necessarily mean you have a MXN $5,000,000 transaction.

You will need additional funds for the acquisition and closing costs.

For this reason, I recommend requesting a preliminary closing-cost estimate from the notary before finalizing the purchase, particularly if you are working with a fixed investment budget.

The purchase price is not the final cost of buying the property.

Can You Pay for a Property in Cash?

This is another important rule that may surprise foreign buyers.

Mexico regulates the use of physical cash in real estate transactions as part of its anti-money-laundering legislation.

The limit is expressed in UMA — Unidad de Medida y Actualización, an economic reference value used in Mexican legislation and updated every year.

For real estate transactions, the relevant legal threshold is currently 8,025 times the daily UMA.

With the 2026 daily UMA of MXN $117.31, that corresponds to approximately:

MXN $941,413

This does not mean that you can simply structure any property purchase however you want below or above that amount.

It means that Mexican law restricts the use of physical cash for real estate transactions once the applicable legal threshold is reached.

In practice, significant real estate payments are therefore normally made through traceable financial methods such as bank transfers, and the notary must document the form of payment when required by law.

If you are transferring funds from another country to purchase property in Mexico, discuss the payment structure with the notary before sending the money.

What Happens on Signing Day?

Once all the documentation is ready and the legal and financial requirements have been satisfied, the buyer and seller sign the deed.

But here is something that often surprises foreign buyers:

You may not walk out of the notary’s office that day with your final registered deed in your hands.

You will normally receive documentation evidencing the transaction, often referred to in practice as a copia simple, while the subsequent registration process continues.

The deed then goes through the corresponding registration procedures, including its inscription in the Registro Público de la Propiedad and the applicable cadastral procedures.

This process does not happen overnight.

Depending on the transaction, notary and processing times of the corresponding authorities, receiving the final registered deed can take several months.

So if you sign the purchase of your property and don’t immediately receive the final registered deed, don’t panic.

It is part of the process.

Get the Notary Involved Early

One piece of advice I always give buyers — and especially foreign buyers — is:

Don’t wait until signing day to think about the notary.

If you are buying as a foreigner, you may need additional documentation and formalities.

Depending on your particular circumstances, this can include your:

* Valid passport

* Mexican immigration document

* RFC

* CURP

* Birth certificate

* Marriage certificate, if applicable

* Apostilles or legalization of foreign documents

* Official Spanish translations by an authorized translator

The exact requirements depend on the buyer and the transaction, which is another reason to involve the notary early.

You don’t want to discover a few days before closing that a document from your home country needs an apostille or official translation.

Is the Notary the Buyer’s Lawyer?

Not exactly.

The Notario Público provides legal certainty to the transaction and acts independently in the exercise of the notarial function.

The notary is not simply the buyer’s personal lawyer or the seller’s personal lawyer.

The notary’s role is to verify the applicable legal requirements, formalize the transaction correctly, calculate the corresponding taxes and charges, give legal form to the transfer and coordinate the subsequent registration.

That independence is precisely one of the reasons the Notario Público is such an important figure in Mexican real estate transactions.

Buying Property in Querétaro?

If you are buying property in Mexico for the first time, words such as notario, escritura, Registro Público, RFC, CURP, avalúo, UMA and certificado de libertad de gravamen can quickly become overwhelming.

They don’t have to be.

My role is to guide you through the real estate process, explain what is happening at every stage and coordinate with the notary and the other professionals involved in your transaction so that you understand what you are signing, what you are paying and what happens next.

Buying property in another country is a major decision.

Understanding the process before transferring your money is one of the best ways to protect your investment.

Pavla De la Parra

RE/MAX Capital | Querétaro

Note: Tax rates, UMA values, legal thresholds and closing costs can change. The figures mentioned in this article are intended as general guidance. Always request an updated calculation from the Notario Público handling your specific transaction.