What is a fideicomiso?
A fideicomiso is a 50-year renewable bank trust used in Mexico to hold residential real estate title for foreign buyers within the restricted zone (50 km of any coast or 100 km of any border). The bank acts as trustee; you, the foreign buyer, are the sole beneficiary with full rights to use, sell, lease, modify, and bequeath the property. The trust is regulated by the Secretaría de Relaciones Exteriores (SRE) and renewable indefinitely at the end of the 50-year term.
How it works
When you purchase property in the restricted zone, the SRE issues a permit allowing a Mexican bank to hold title on your behalf. The bank charges a one-time setup fee (typically 2,500 to 3,000 USD across major banks) plus an annual maintenance fee (typically 500 to 1,000 USD). You retain full beneficial rights, identical to those of direct title ownership. When you sell, you can either close the trust (paying a small close-out fee) or transfer it to the new buyer.
Assumable fideicomiso: a 30-45 day shortcut
If the seller already has a fideicomiso, you can assume it at closing rather than opening a new one. The bank simply changes the beneficiary name from seller to buyer. You skip the setup fee, the SRE permit, and the notario fideicomiso surcharge, and you cut 30 to 45 days off the closing timeline. The bank must approve you (typically a formality if your KYC clears). Always verify the existing trust's remaining term before assuming.
Choosing a trustee bank
Setup fees vary by bank but the differences are usually within a few hundred dollars. The bigger considerations: language support (Scotiabank Mexico has the strongest Anglophone + Francophone customer-service operation, valuable for Quebec snowbirds), branch network (BBVA and Banamex have the largest networks across Mexico), and existing banking relationship (your home-country bank may have a Mexican subsidiary that can streamline KYC). Your notario will recommend a trustee bank they have a working relationship with, which often beats shopping around on price alone.
Why this is an estimate, not a quote
Bank fideicomiso fees vary by trustee bank, property value, and your existing banking relationship. Some banks offer preferential rates for clients with private-banking accounts. SRE permit fees are set in the federal Ley Federal de Derechos and update annually. Notario surcharges vary by notario. Always request a bank quote and a notario fee schedule before committing. The figures here are calibrated to conventional 2026 ranges to give you a working estimate, not a settlement quote.