Do I Have to Pay Taxes If I Buy a House in Mexico?

Yes. Buying property in Mexico carries taxes at three points: closing, annually while you hold it, & sale. As a US person, you also have US reporting obligations on the asset. Here is the honest breakdown for a San Miguel de Allende purchase.

1. At Closing: ISAI (Acquisition Tax)

The Impuesto Sobre Adquisición de Inmuebles is a one-time municipal tax paid by the buyer when the deed is signed. In Guanajuato it typically runs 2% to 4% of the registered transaction value, depending on the municipality's current rate & the value tier. The Notario calculates & withholds it at closing.

This sits alongside Notario fees, Registro Público fees, appraisal & title study, all of which together (closing costs) usually total 5% to 8% of purchase price. The closing costs guide breaks each line item down.

2. Annually: Predial (Property Tax)

Predial is the annual municipal property tax. In San Miguel de Allende it is famously low by US standards, typically a few hundred to a few thousand US dollars per year for most residential properties, paid each January. Pay it in the first months of the year for a discount. Full detail in the predial guide.

3. On Rental Income: ISR

If you rent the property out, rental income is subject to Mexican Impuesto Sobre la Renta (income tax). Rates depend on whether you operate as an individual or through a Mexican entity, & whether short-term or long-term. A Mexican accountant (contador) is essential if you plan to rent.

4. On Sale: Capital Gains (ISR)

When you sell, the gain is subject to ISR. Mexican capital gains can be calculated two ways: a flat percentage of the sale price, or 35% on the inflation-adjusted gain after deductions (improvements, closing costs, commissions). The Notario at sale calculates both & applies the lower.

There is a primary-residence exemption available to residents (with limits) if you meet specific conditions, including being a Mexican tax resident & having facturas for major improvements. This is one of the most planning-sensitive items in Mexican real estate.

5. IVA on New Construction

New residential construction sales are generally exempt from IVA (Mexico's 16% VAT). Commercial property sales may include IVA. Confirm with the seller & Notario.

6. US Side: FBAR, FATCA & Worldwide Income

US citizens & green card holders are taxed on worldwide income & must report certain foreign financial accounts. Owning Mexican real estate directly does not itself trigger FBAR or FATCA. But if you hold the property through a Mexican fideicomiso or Mexican LLC, or have a Mexican bank account associated with the property, those typically do trigger reporting.

Rental income earned in Mexico is taxable on your US return as well. The US-Mexico tax treaty allows a foreign tax credit so you do not pay twice on the same dollar, but you still must report.

The Practical Picture

For most international buyers in San Miguel, the tax friction is meaningfully lower than in the US:

• Closing costs are higher (5% to 8% vs. 2% to 4% in many US markets), but only paid once.

• Annual property tax is dramatically lower than US equivalents.

• Capital gains planning matters & should be set up at purchase, not at sale.

For the closing-day cost detail, see closing costs in San Miguel. For confirmation Americans can hold direct title, read can Americans buy property in San Miguel.

When you are ready to look at properties or talk through the numbers on a specific purchase, reach out & I will connect you to a Notario & cross-border tax advisor in San Miguel.