Closing Costs, Taxes, and Legal Steps: What Foreign Buyers Pay to Close in the Riviera Maya

Foreign buyers closing on Riviera Maya property pay a one-time acquisition tax called ISAI (roughly 2 to 3 percent of the purchase price), notario fees, and fideicomiso trust setup costs. The notario público is legally responsible for calculating and withholding applicable taxes at closing. Obtaining a Mexican tax ID (RFC) before closing is essential, and the process takes two to four weeks. FIRPTA does not apply when a US citizen buys Mexican property.

What does a foreign buyer actually pay at closing in the Riviera Maya?

Foreign buyers closing on Riviera Maya property pay three main categories of costs: the ISAI acquisition tax, notario fees, and fideicomiso trust setup costs. ISAI (Impuesto Sobre Adquisición de Inmuebles) is a one-time state-level transfer tax of roughly 2 to 3 percent of the declared purchase price. It is the buyer's tax, not the seller's, and it is paid at closing through the notario.

Notario fees cover the legal work of preparing, certifying, and registering the deed. The notario público in Mexico is a state-appointed legal officer, not simply a witness. The notary calculates and withholds applicable taxes, verifies identity documents, and is legally liable for the accuracy of the closing file.

Most foreign buyers in the coastal restricted zone also pay fideicomiso trust setup costs, because title is held through a Mexican bank trust rather than directly. The bank charges a setup fee and an annual trust fee. Closing costs vary by purchase price and property structure, so our team provides a line-item estimate for every transaction before you sign a purchase contract.

What is a fideicomiso and why do foreign buyers need one?

A fideicomiso is a Mexican bank trust that holds title to property on behalf of a foreign buyer. It is the standard legal vehicle for purchasing in Mexico's coastal restricted zone, which covers most beachfront and near-beach property in Tulum, Playa del Carmen, Puerto Aventuras, Akumal, Puerto Morelos, and Cancun.

As the beneficiary of the fideicomiso, you hold full use, rental, and resale rights. The bank is a passive trustee. You can list the property on Airbnb, Vrbo, or Booking.com exactly as if you held title directly, and you can sell or transfer the trust at any time. The fideicomiso is a title-holding vehicle, not a tax shelter, and it does not change your income or capital-gains tax obligations.

A fideicomiso used as a simple title-holding vehicle, where the beneficiary has day-to-day control and the bank is passive, is generally treated as a grantor trust for US tax purposes, meaning the beneficiary is taxed as if they own the property directly. The IRS has not issued definitive guidance on all fideicomiso structures, so US buyers should confirm grantor-trust treatment with a CPA or tax attorney before closing.

What is the RFC and why do you need it before closing?

The RFC (Registro Federal de Contribuyentes) is a Mexican tax identification number issued by SAT, Mexico's federal tax authority. Foreign buyers are required to obtain an RFC before or immediately after closing, and in practice the notario will ask for it at the closing table.

The RFC matters from day one of ownership. Without an RFC on file with rental platforms such as Airbnb and Vrbo, income tax withholding on rental revenue rises sharply. When you eventually sell, the notario uses your RFC to calculate and remit the applicable capital-gains tax (ISR) on your behalf. The RFC ties your identity to the transaction in the Mexican tax system and is required for any tax filings in Mexico.

Obtaining an RFC as a foreign national requires a valid passport, proof of address, and in some cases an appointment at a SAT office or assistance from a Mexican contador. The process typically takes two to four weeks. Starting the RFC application well before your target closing date prevents it from becoming a last-minute obstacle.

What taxes does the notario withhold at closing?

The notario is legally responsible for withholding and remitting taxes at closing. On the buyer's side, the primary closing tax is ISAI, the one-time acquisition tax of roughly 2 to 3 percent. On the seller's side, the notary withholds ISR (impuesto sobre la renta), Mexico's capital-gains tax, directly from the seller's proceeds and remits it to SAT. There is no opt-out and no way to bypass this process.

The notario calculates ISR two ways and applies whichever method the law requires: roughly 25 percent of the gross sale price, or a net-gain method of up to 35 percent after allowable deductions. The buyer's ISAI and the seller's ISR are separate obligations, but both flow through the same notario at the same closing.

Under-declaring the purchase price on the deed to reduce ISAI is illegal. A reputable notario will refuse to do it. It also damages the buyer's future cost basis, which means a higher taxable gain when the property is eventually sold. The notario's job is to record the true transaction value, and the closing file must be consistent with that value.

Does FIRPTA apply when a US citizen buys property in Mexico?

FIRPTA (Foreign Investment in Real Property Tax Act) does not apply when a US citizen purchases Mexican real estate. FIRPTA is a US law that requires a buyer who purchases US real estate from a foreign seller to withhold a percentage of the purchase price and remit it to the IRS. The Mexican transaction is entirely outside US jurisdictional reach under FIRPTA.

This is one of the most common points of confusion for US buyers. You are an American buyer purchasing property outside the United States. You are not a foreign seller disposing of US real estate. FIRPTA simply does not enter the picture.

US buyers do have separate obligations after closing. Consulting a US CPA with cross-border expertise before purchase is the right step. The intersection of FBAR, FATCA, and the US-Mexico tax treaty requires a specialist. A pre-purchase consultation allows you to document your cost basis precisely at closing, which is the foundation of every future tax calculation.

What ongoing taxes does a foreign owner pay after closing?

Predial is the only recurring annual property tax in Mexico. It is assessed on the cadastral value of the property, which is typically lower than the market value, and it is paid to the municipal government. Predial is the only annual tax that applies simply from owning the property.

If you rent the property, rental income is subject to income tax (ISR) and, in some cases, IVA. Airbnb, Vrbo, and Booking.com now withhold and remit the 6 percent state lodging tax (ISH) automatically on most bookings. Platforms also withhold ISR. With a registered RFC on file, the platform withholding rate is lower than without one. Without an RFC, you may be treated as a foreign non-resident and taxed at a flat 25 percent on gross income with no deductions allowed.

When you sell, the notario withholds ISR on the capital gain. There is no holding-period exemption in Mexican law. The only exemption available is the residency-based casa-habitación rule, which requires Mexican tax residency, an RFC, and primary-residence proof, is capped at 700,000 UDIs, and can be used only once every three years. Most foreign buyers do not qualify.

What does the current Riviera Maya market look like for foreign buyers?

Based on MWH's active listings as of June 2026, the median list price across the Riviera Maya is $403,486 USD, with an average list price of $626,593 USD. Properties are moving: the median days on market is 25, and the average is 28. These figures reflect the current inventory our team is actively marketing across Tulum, Playa del Carmen, Puerto Aventuras, Akumal, Puerto Morelos, and Cancun.

At a median price of $403,486 USD, a buyer should budget the ISAI acquisition tax of roughly 2 to 3 percent on top of the purchase price, plus notario fees and fideicomiso setup costs. Closing costs vary by transaction structure, and our team provides a detailed estimate before any offer is made.

For buyers converting from Canadian dollars, the current USD to CAD rate is approximately 1.4152, meaning a $403,486 USD property is roughly $570,800 CAD before closing costs. Currency timing and conversion documentation are worth discussing with your bank before you wire funds, as large international transfers can trigger compliance reviews on the sending side.

If you would like to review current listings or receive a closing-cost estimate for a specific property, our team is available to walk you through the numbers before you make an offer.