Most guides for foreign buyers stop at the closing table. But every purchase is also a future sale, and the day you sell in Mexico is when good record-keeping and smart structuring pay off — or when they cost you. Selling as a foreigner involves a specific tax, one national capital-gains rule with valuable exemptions, and a few extra steps if your property is held in a fideicomiso. This guide walks through the process so you can protect your net proceeds, not just your sale price.
The number that matters: net, not gross
The headline sale price is not what lands in your account. Between the offer and your bank, several deductions apply — capital gains tax being the largest. A disciplined seller plans backward from net proceeds and knows their tax exposure before listing, not after signing.
Broadly, a foreign seller’s deductions include:
- Capital gains tax (ISR — impuesto sobre la renta).
- Real estate commission (typically 5–8% + IVA).
- Notary and cancellation fees, including fideicomiso cancellation if applicable.
- Any outstanding debt on utilities or predial.
Capital gains (ISR): how it actually works
When you sell, Mexico taxes the gain — roughly the difference between your adjusted sale value and your fiscal cost basis (the value on your deed plus documented, invoiced improvements). The notario calculates and withholds this at closing. Two things dominate your outcome:
- Your cost basis. The higher your documented basis, the lower your gain. This is why keeping facturas (official invoices) for every renovation matters from the day you buy.
- Peso vs dollar effects. ISR is calculated in pesos. You can owe tax on a peso “gain” even if your dollar return was modest — an important and often-shocking quirk for foreign sellers.
Effective capital gains liability commonly lands in the range of 25–35% of the taxable gain, though the exact figure depends on your basis, holding period and deductions.
The primary-residence exemption
Mexico offers a valuable capital-gains exemption for a primary residence (casa habitación), and foreigners can qualify — but the requirements are strict and must be met before you sell:
- You must prove the property was your primary residence, typically with documents like utility bills (CFE, water) and bank statements in your name at that address.
- You generally need Mexican tax residency and an RFC to claim it — a passport alone is usually not enough.
- There are caps on the exempt amount and limits on how frequently it can be used.
Because the paperwork must exist ahead of time, the exemption is something to plan for during ownership, not scramble for at closing. Many foreign sellers who could have qualified miss out simply because they never built the paper trail.
If your property is in a fideicomiso
For restricted-zone properties held in a bank trust, selling involves an extra layer:
- The fideicomiso must be cancelled (or assigned) at closing, which carries trustee bank fees and notary work.
- If your buyer is also a foreigner, they will set up their own trust; if they are Mexican, the trust is cancelled and title passes directly.
- Coordinate the trustee bank early — bank timelines can add weeks to a closing.
None of this is a barrier to selling; it simply needs to be sequenced correctly so it does not stall your closing.
Realistic timeline
Selling in Mexico is generally slower than in the US or Canada. A realistic timeline:
- Preparation and pricing: 1–2 weeks (gather deed, tax records, HOA statements, facturas).
- Marketing to offer: highly variable — weeks to many months depending on price and market.
- Offer to closing: 6–10 weeks, longer if a fideicomiso cancellation or new trust is involved.
Pricing to the real market — not to your original purchase price plus wishful appreciation — is the single biggest driver of a fast sale.
Protecting your net proceeds
- Document everything. Facturas for improvements raise your cost basis and cut ISR.
- Confirm your withholding. Understand the notario’s ISR calculation before signing — question surprises.
- Get funds out cleanly. Plan the currency conversion and wire to your home account; large transfers may need compliance documentation.
- Clear all liabilities. Settle predial, HOA dues and utilities so nothing snags the closing.
- Negotiate who pays what. Commission and some fees are negotiable; know the local custom before you agree.
Pre-sale checklist
- Locate your deed and confirm how title is held (direct vs fideicomiso).
- Gather facturas for all improvements to maximize cost basis.
- Get a professional estimate of your ISR exposure before listing.
- Assess primary-residence exemption eligibility (RFC, residency, address paper trail).
- Contact the trustee bank early if a fideicomiso cancellation is needed.
- Clear all outstanding predial, HOA and utilities.
- Plan your currency conversion and international wire in advance.
How we help
Even though we are a buyer-side desk, our clients eventually become sellers — and we advise them the same way: independently, in their interest, with no incentive to rush a deal. Before you list, we help you assemble the documents that lower your tax bill (deed, facturas, cost-basis records), get you a clear-eyed estimate of your ISR exposure, and confirm whether the casa habitación exemption is within reach. If your property sits in a fideicomiso, we help sequence the cancellation with the trustee bank so it never stalls your closing. The goal is simple: you walk away knowing your net proceeds in advance, with no surprise withholding at the notary’s desk.