The short answer: you do not need a fideicomiso to buy in San Miguel
This is the single most common piece of misinformation I correct in a first call with a foreign buyer. Yes, foreigners need a fideicomiso (bank trust) to buy property in Mexico — but only in the restricted zone, which the constitution defines as within 50 km of the coast or 100 km of an international border.
San Miguel de Allende sits squarely in Mexico's interior. No coast, no border. Foreigners here buy property the same way Mexican nationals do: in their own name, via direct deed. You get full ownership rights — sell it, rent it, leave it to your children, do whatever you want with it.
If a real estate agent in San Miguel tells you that you need a fideicomiso, they're either confused or trying to upsell you. Walk away.
If you ever buy in Cabo San Lucas, Puerto Vallarta, Tulum, Playa del Carmen, Cancún, Ensenada, or any coastal/border property, you'll need a fideicomiso. Setup runs US$2,000–$3,000, plus annual maintenance fees of US$550–$1,000. It's a real cost. Buying here in the interior, you skip it entirely.
What a fideicomiso actually is (so you understand what you're skipping)
A fideicomiso is a 50-year renewable trust held by a Mexican bank that owns the title on your behalf. You're the beneficiary with full use rights, but the bank is the legal titleholder. It exists because Mexico's 1917 constitution prohibited foreign direct ownership in the restricted zone — and the fideicomiso was created in 1973 to give foreigners a legal workaround.
It's safe, it's well-established, and millions of foreigners hold property this way in coastal Mexico. But it's a real administrative layer with real ongoing costs. In San Miguel, you don't deal with any of it.
The direct deed process, step by step
Here's the actual sequence for buying in San Miguel as a foreigner:
- Make an offer through your agent. In San Miguel, this is typically a written offer with proof of funds.
- Earnest money deposit upon offer acceptance — usually 5–10% of purchase price, held in escrow.
- Promissory agreement (contrato de promesa) signed by both parties. This makes the deal legally binding subject to due diligence.
- Due diligence period — title search, inspection, confirming taxes are current, checking for liens. The notary leads most of this.
- Notary drafts the escritura (the deed). This typically takes 2–4 weeks once due diligence clears.
- Closing day — you sign the escritura before the notary, pay the balance, get the keys.
- Public Registry filing — the notary files your deed in the Public Property Registry (Registro Público de la Propiedad). This finalizes legal ownership and takes a few additional weeks.
The notario público — the most important person in your purchase
If there's one thing I want you to internalize from this post, it's this: the notario público in Mexico is not a US notary. In the US, a notary is a low-level witness who verifies signatures. In Mexico, the notario is a government-appointed senior attorney who acts as a quasi-judicial authority for real estate transactions.
What the notary does:
- Verifies the seller's title is clean (no liens, no encumbrances, no unpaid taxes)
- Confirms property taxes (predial) are current
- Calculates and collects all acquisition taxes
- Drafts the legally binding escritura
- Witnesses signing
- Files the deed in the Public Registry
The notary is paid by you, the buyer. Their fee is typically 0.5%–1.5% of the property value for the document drafting itself, plus additional government-required fees they pass through. Different notaries charge different rates and have different reputations — choosing a good one matters more than choosing a good real estate agent. I steer my clients to specific notaries I've worked with for over a decade.
What it really costs: full closing breakdown
Plan for 5%–8% of purchase price in total closing costs. Breaking that down for a typical San Miguel transaction:
- ISAI (Impuesto Sobre Adquisición de Inmuebles) — the acquisition tax, 2%–4% of property value. Guanajuato state (where San Miguel sits) currently charges in this range. This is the biggest single line.
- Notary fees and document preparation — typically 0.5%–1.5% of the transaction value for the notary's services, plus government pass-through fees.
- Public Registry filing — 0.5%–1% of property value.
- Property appraisal (avalúo) — required for tax calculation, typically MXN 8,000–15,000 (~US$450–850).
- Foreign-buyer permit (SRE) — the Secretaría de Relaciones Exteriores requires a permit allowing a foreigner to hold title. Cost: ~US$400. The notary handles the paperwork.
- Bank wire fees, certified copies, miscellaneous — budget a few hundred dollars.
- Optional but recommended: independent attorney — US$1,500–3,000 for a Mexican real estate attorney to review documents independently of the notary. I always recommend this for purchases over US$300,000.
Sellers, separately, pay capital gains tax and the real estate commission. Buyers don't.
How long it actually takes
From accepted offer to fully registered deed: 4 to 12 weeks. The variation depends on three things:
- How quickly the title and tax history check out. Clean title = 4–6 weeks. Any historical complication (unrecorded transfers, decades-old issues) = 8–12 weeks.
- How fast you (the buyer) move on signing the promissory agreement, getting funds wired, and providing requested documents.
- The specific notary's current workload. Better notaries are busier and may take an extra week or two.
If you can't be here in person: power of attorney
You do not need to be physically present in San Miguel for every step of the transaction. A power of attorney (poder) granted to a trusted representative — often a Mexican attorney or your agent — allows them to sign documents on your behalf. Many of my clients close on their property without ever returning to San Miguel after the initial visit. The power of attorney itself can usually be executed at a Mexican consulate in your home country.
Mistakes I've watched foreigners make
After fourteen years of helping foreign buyers, the same handful of mistakes come up over and over:
- Trusting the listing agent to also represent you. In Mexico, the listing agent works for the seller. Have someone working for you.
- Skipping the independent attorney. The notary is government-appointed and impartial — they don't advocate for you. An attorney does.
- Negotiating only on price. Repairs, included furniture, fixture warranties, closing timeline — these are all negotiable and worth real money.
- Underestimating closing costs. Budget the full 8% to avoid surprises.
- Wiring earnest money before title is verified. Funds should go to escrow with clear release conditions, not direct to seller.
- Not getting an inspection. Many foreigners skip this because it wasn't required during the 2021–2023 frenzy. It's standard now and you should insist on it.
One last thing: hold title in your name or in an entity?
For most personal-use purchases, holding the property in your own name is simplest and cleanest. For investment properties — especially those generating rental income — there can be tax advantages to holding through a Mexican entity. This is a conversation for your accountant and a Mexican tax attorney, not your real estate agent. But it's worth raising before you sign anything.
If you want me to walk through any of this in detail for your specific situation — including which notary I'd recommend and a closing cost estimate for the property you're considering — get in touch. This is the part of the process where having a working local agent saves you real money.
Sources and further reading: TheLatinvestor — Foreign Ownership in SMA · Mexperience — Closing Costs in Mexico · International RE — Mexico Real Estate for Foreigners 2026. Tax rates and regulations change. Confirm specifics with your notary and accountant before closing.