Fideicomiso Explained: How Foreigners Buy Property in Mexico's Restricted Zone in 2026

A fideicomiso is a 50-year renewable bank trust that lets foreigners hold full beneficial rights to residential property in Mexico's coastal and border zones. The bank holds bare legal title. You hold every economic right that matters: use, sale, lease, inheritance, and the right to keep the proceeds. The structure has existed since 1973 and remains the standard mechanism for foreign ownership in the restricted zone in 2026.

The reason you need it sits in Article 27, Section I of the Mexican Constitution, which prohibits foreigners from directly acquiring land within 100 kilometers of any international border or 50 kilometers of any coastline. The provision dates from 1917 and was originally designed to protect strategic territory. The Foreign Investment Law of 1993 codified the trust workaround that the 1973 reform introduced, formalizing the modern fideicomiso framework.

The operative provisions are Articles 10 through 14 of that law, which authorize Mexican banks to act as trustees holding restricted-zone property for the benefit of foreign nationals, with Article 13 setting the 50-year term and the right to renew indefinitely.

What the trust actually grants

Under a fideicomiso, the Mexican bank (the fiduciario, or trustee) holds title to the property. You are the fideicomisario, the trust beneficiary. The trust contract grants you, in writing:

The right to use the property as you wish, including living in it, leaving it vacant, renovating it, or demolishing and rebuilding subject to municipal permits. The right to lease it short-term or long-term and to keep all rental income. The right to sell the property at any time, on any terms, to any qualified buyer (foreign or Mexican). The right to name beneficiaries who inherit the trust on your death without going through Mexican probate. The right to receive the full sale proceeds in the currency of your choice.

The bank cannot sell, encumber, or otherwise act on the property without your written instruction. The trust contract is a binding civil instrument under Article 381 of the General Law of Negotiable Instruments and Credit Operations (LGTOC). Banks acting as fiduciaries are regulated by the National Banking and Securities Commission (CNBV).

The SRE permit and the Calvo Clause

Before establishing the fideicomiso, you obtain a permit from the Secretaría de Relaciones Exteriores (Ministry of Foreign Affairs, abbreviated SRE). The SRE permit is a one-time authorization that the bank holds in the trust file. Inside the application you sign the Calvo Clause: a written agreement to be treated as a Mexican national in matters relating to the property, and not to invoke the diplomatic protection of your home country in disputes related to the property. The clause is named after Carlos Calvo, the 19th-century Argentine jurist whose doctrine on foreign investor rights it reflects.

Processing time for the SRE permit typically runs two to four weeks. The permit is property-specific, not buyer-specific, so a new permit is needed for each subsequent purchase.

Costs

Setup costs for a fideicomiso run roughly $1,500 to $3,500 in 2026, depending on the bank and the property value. The setup includes the SRE permit fee, notary fees for the trust contract, the bank's setup fee, and the registration of the trust in the Public Registry of Property.

Annual maintenance fees run $500 to $1,000 per year and cover the bank's ongoing administrative role as trustee. The fees are tax-deductible against rental income earned through the property.

Two costs sit outside the trust itself and are easy to miss. The acquisition tax (Impuesto Sobre Adquisicion de Inmuebles, ISAI) runs 2 to 4.5 percent of the assessed or transaction value depending on the state, and notary fees run 0.5 to 1.5 percent of transaction value, covering both the trust establishment and the property transfer. The SRE permit fee itself is small, roughly 2,000 to 3,500 pesos, and an appraisal costs 3,000 to 10,000 pesos. Across a full 50-year term the annual trustee fee alone totals USD 25,000 to USD 75,000, which belongs in any investment model.

Renewal at the end of the 50-year term involves submitting a renewal request through the bank, paying an SRE renewal fee of approximately $1,000 to $1,500, and signing a renewal agreement before a notary public. The renewal is recorded in the Public Registry and extends ownership rights for another 50 years. The right to renew is automatic provided the trust is in good standing and the beneficiary remains qualified. There is no cap on the number of renewals.

Start the renewal early regardless. The process runs 30 to 60 days, requires an application to the bank and a new SRE permit fee, and a trust that is allowed to lapse terminates rather than rolling over. Banks usually send reminders, but tracking the expiry date is the beneficiary's job.

What the restricted zone covers

The 50-kilometer coastal strip and 100-kilometer border strip together cover about 50% of Mexican territory but include almost all the destinations foreign buyers actually want: Cancún, Playa del Carmen, Tulum, Cozumel, the entire Riviera Maya, Puerto Vallarta, Cabo San Lucas, San José del Cabo, La Paz, Mazatlán, Acapulco, San Miguel de Allende's coastal access points, Rosarito, Ensenada, San Felipe, and Puerto Peñasco. Mexico City, Guadalajara, San Miguel de Allende (the town itself), Querétaro, and the Lake Chapala region all sit outside the restricted zone and allow direct foreign ownership.

Inside the restricted zone, residential property requires a fideicomiso. Commercial property used for non-residential business activity can be held directly through a Mexican corporation (sociedad mexicana) under a separate framework.

The corporate alternative

For investment-purpose acquisitions in the restricted zone, especially rental businesses, development projects, or commercial buildings, foreign buyers often use a Mexican corporation rather than a fideicomiso. The corporation is 100% foreign-owned under the Foreign Investment Law, includes the Calvo Clause in its bylaws, and registers with the Foreign Investment Registry (RNIE) within 40 days of formation. The corporate route eliminates the bank trustee, allows deduction of operating expenses against rental income, and scales better across multiple properties.

The trade-offs are accounting and tax complexity (the corporation files monthly and annual returns), higher setup costs ($2,000 to $4,000), and personal-use restrictions: the IRS may treat owner use of a corporate property as a constructive distribution for US tax purposes, creating reporting headaches. For a single second home, the fideicomiso is almost always the right tool. For three or more income properties, the corporation usually wins.

Property outside the restricted zone

Property more than 50 kilometers from any coast and more than 100 kilometers from any border can be acquired by a foreigner directly in their own name. You still need the SRE permit and sign the Calvo Clause, but there is no trust, no bank, no annual fee. Closing is faster and ongoing costs are zero. This applies to Mexico City, Guadalajara, the Bajío region (Querétaro, San Miguel de Allende, Guanajuato, Aguascalientes), Morelia, Oaxaca City, and the inland portions of most other states.

What can go wrong

Three failure modes account for most fideicomiso disputes. The first is title defect on the underlying property: an unresolved agrarian claim, an ejido conversion that was never properly completed, or a missing chain of title in the Public Registry. The bank does not warrant title, only that the trust is properly established. You or your attorney must run the title search before signing.

The second is overcharging by the bank trustee, particularly at renewal time. Bank fee schedules are negotiable, but few buyers realize this. A fee schedule that was reasonable in 2010 may be excessive in 2026. Compare schedules across BBVA, Santander, Banorte, Scotiabank, and HSBC before committing.

Banks can adjust annual trust fees with 30 to 60 days' notice and there is no regulatory cap on what they charge, so older trusts written at below-market rates are the ones most often repriced. Citibanamex is another major trustee bank worth putting in that comparison. If your trustee bank merges or exits the trust business, the fideicomiso is transferred to another institution under CNBV supervision. Your rights as beneficiary survive the transfer. The fee schedule may not.

The third is missing payments. Annual fees that fall behind generate penalties and can complicate any sale or modification of the trust. The bank's notification track record matters here, and good trustees send multiple reminders. Set up automatic payment to avoid the issue.

A platform like Bektu (https://bektu.com) tracks developer delivery history and project quality across Mexican coastal markets so foreign buyers can evaluate the property itself, not just the trust mechanics, before committing to a fideicomiso purchase.

Selling a property held in fideicomiso

There are two exit mechanics. If your buyer is also a foreigner, the standard route is a cesion de derechos, an assignment of your beneficiary rights, which keeps the existing trust alive and avoids the cost and delay of establishing a new one. The bank charges an assignment fee, typically USD 1,000 to USD 3,000, and the assignment is formalized before a notary. If the buyer is Mexican and needs no trust, the fideicomiso is terminated and the property transfers directly. If the buyer wants a different trustee bank, the existing trust is cancelled and a new one established, which costs more and takes longer.

When the structure is ending

Fideicomisos can be terminated early by mutual agreement between the bank and the beneficiary, typically when the property is sold or when the foreign owner becomes a Mexican national and no longer needs the trust. Termination requires a notary act and removal of the trust annotation from the Public Registry. The cost mirrors the setup cost, roughly $1,500 to $3,000.

If you naturalize as Mexican, you can convert the property to direct ownership in your own name. The fideicomiso terminates, the bank releases title, and you become the direct owner of record. The same applies if you marry a Mexican citizen and choose to take Mexican nationality, though marriage alone does not convey citizenship under current law.