US citizen selling property in Mexico: Taxes, capital gains & IRS rules

US citizen selling property in Mexico: Taxes, capital gains & IRS rules

Every US citizen selling property in Mexico must report that sale on a US federal tax return – even if Mexico already withheld tax at closing. The US taxes its citizens on worldwide income regardless of where they live or where the property is located. Mexico will generally tax the gain first, and the US may then allow you to offset part or all of your US tax liability using the foreign tax credit.

That two-country calculation is what separates a prepared sale from an expensive surprise. Mexico taxes the transaction as it happens; the IRS expects a full report when you file Form 1040. If Mexican ISR (Impuesto Sobre la Renta – Mexico's income tax, which covers capital gains) was withheld at closing, that amount may be credited dollar-for-dollar against your US capital gains tax on the same gain, subject to the Form 1116 limitation rules.

For a complete picture of how both tax systems interact for US persons in Mexico, you can review our guide to US tax preparation in Mexico.

Quick answer: What taxes apply when a US citizen sells property in Mexico?

When a US citizen sells Mexican real estate, at least two separate tax systems apply simultaneously: Mexico's income tax (ISR) on the capital gain and US federal capital gains tax reported on Form 8949 and Schedule D. A third layer – FBAR may be required if the combined maximum value of all foreign financial accounts exceeds $10,000 at any time during the year. Form 8938 is separate and applies only if specified foreign financial assets exceed the applicable FATCA threshold. Mexican real estate itself is not reported on Form 8938, but a Mexican bank account holding sale proceeds may be. Relief is available through the foreign tax credit, but the US reporting obligation does not go away.

The simplest framing: Mexico taxes first, the US still taxes, and the IRS foreign tax credit is usually the primary relief mechanism.

The table below shows the full three-layer tax picture for a US citizen selling Mexican real estate. Understanding which layer applies – and in which order – is the starting point for every cross-border property sale.

Tax Where paid Main form or authority Relief available
Mexican capital gains (ISR) Mexico – withheld by notary at closing SAT (Mexico's tax authority); notary files Documented deductions; primary residence exemption for residents
US capital gains tax United States – reported on annual return Form 8949 + Schedule D (Form 1040) Section 121 exclusion; foreign tax credit on Form 1116
Foreign account reporting United States – informational only, no separate tax owed FinCEN Form 114 (FBAR); Form 8938 with return None – these are reporting requirements, not taxes

 

For the official IRS guidance on the foreign tax credit mechanism, see the IRS overview of the foreign tax credit.

Can foreigners legally sell property in Mexico?

Yes – foreigners, including US citizens, have the legal right to sell Mexican real estate, whether the property is held in their name directly or through a fideicomiso (a bank-administered trust). The ownership structure affects the paperwork required at closing but does not change the fundamental right to sell.

Property tax in Mexico for foreigners covers two separate concepts that are frequently confused. Predial is Mexico's local municipal property tax, charged annually on property ownership and paid to the local municipality. ISR is Mexico's federal income tax on the gain from a sale, administered by SAT and withheld by the notary at closing. Both can apply to a foreign owner, but they operate under entirely different rules and authorities.

The restricted zone is defined by Mexican law as the area within 50 km of any coastline or within 100 km of any international border. Foreign nationals cannot hold direct title to real estate in the restricted zone; ownership must go through a fideicomiso with a Mexican bank as trustee, or alternatively through a Mexican corporation. The most popular US-buyer destinations – Cancún, Cabo San Lucas, Puerto Vallarta, Playa del Carmen, Tulum – all fall within the restricted zone.

Under a standard residential fideicomiso, the US owner is treated as the beneficial owner for both Mexican and US tax purposes. The IRS confirmed in Revenue Ruling 2013-14 that a standard residential fideicomiso is not a foreign trust, so Forms 3520 and 3520-A are generally not required for a standard residential fideicomiso holding. Read our guide on buying property in Mexico as an American for a full overview of ownership structures and the fideicomiso rules.

The US Embassy in Mexico publishes guidance for US citizens navigating Mexican real estate transactions, and SAT administers all Mexican federal tax obligations related to property ownership and sale.

Mexican capital gains tax on real estate sales

Mexico capital gains tax on real estate is administered through ISR and is calculated and withheld by the Notario Público (a government-certified officer, not equivalent to a US notary) at closing. The notary has a legal obligation to compute the tax and remit it to SAT before the transfer is complete. The exact rate and method depend on your Mexico tax residency status, your available documentation, and how the notary interprets your deductions.

For nonresidents, Mexico generally permits the seller to elect one of two ISR calculation methods:

  • 25% of the gross sale price – no deductions required; simpler and used when documentation is poor
  • 35% of the net gain – requires documented deductions (acquisition cost, eligible improvements, commissions, notary fees); often lower in practice

The notary will calculate both options. The seller typically chooses whichever produces the lower withholding. Because rules vary by seller status, documentation quality, and notary interpretation, this article does not guarantee a fixed rate; your actual liability will depend on your specific facts.

Read our guide on capital gains tax on foreign property for context on how the US treats a foreign real estate gain once Mexico has taken its share.

 

Pro tip
Mexico’s 35% net-gain method may reduce ISR only when the Article 160 requirements are met and the seller can document eligible costs. Ask the notary before signing whether the method is available for your sale.

Mexico resident vs nonresident seller

Your Mexico tax residency – not your immigration status – determines which ISR exemptions and deductions are available to you. The capital gains tax in Mexico for non-residents is generally less favorable than for residents: non-residents face more rigid withholding, fewer exemption opportunities, and no access to the progressive personal ISR tariff.

A Mexican tax resident is required to hold an RFC (Registro Federal de Contribuyentes – Mexico's taxpayer ID number) and may also hold a CURP (Clave Única de Registro de Población). Mexican tax residents may qualify for the casa habitación exemption if the sale is formalized before a fedatario and the legal conditions are met, including the 700,000 UDI limit and no use of the exemption in the prior 3 years.

Do not assume that your immigration residency status in Mexico equals Mexican tax residency. A US citizen holding a temporary or permanent residency visa in Mexico may or may not qualify as a Mexican tax resident for ISR purposes, depending on whether you have a casa habitación in Mexico and, if you also have a home abroad, where your center of vital interests is under Código Fiscal de la Federación Article 9. A US citizen who owns a Cabo home but spends most of the year in Texas may be a nonresident for Mexican ISR purposes regardless of immigration status.

Confirm your Mexican tax residency status with a Mexican tax professional before signing any purchase agreement. SAT's official guidance covers the current residency criteria and how to confirm your standing.

Deductions that may reduce Mexican capital gains tax

Allowable deductions under Mexico's Ley del ISR can substantially reduce the taxable gain on a property sale, but they depend entirely on whether you have the official supporting invoices. No factura, no deduction – this is the practical rule in Mexico. Bank wire records, informal receipts, and contracts from unregistered contractors are not accepted substitutes.

The following 6 categories of costs are generally deductible when properly documented:

  1. Original acquisition cost – the purchase price from the original escritura (title deed), adjusted upward for inflation using Mexico's INPC (National Consumer Price Index)
  2. Eligible capital improvements – additions or renovations that increased the property's value, documented by facturas from SAT-registered contractors; repairs and maintenance generally do not qualify
  3. Real estate commission – the agent's fee at the time of sale, supported by a valid factura
  4. Notary and legal fees paid at original purchase – documented costs from the original closing
  5. Certain closing costs at purchase – costs supported by official documentation from the original transaction
  6. Notary and legal fees at the current sale – the current closing costs charged by the notary

Before listing your property, gather every original factura you received since purchase. Your notary will request these at closing. Understand how Mexico's deduction rules affect your overall cross-border liability by reviewing our foreign property tax guide.

Why USD/MXN exchange rates can create a taxable gain

Even if you bought and sold a Mexican property for the same US dollar amount, you may still owe ISR in Mexico – and potentially US capital gains tax – because Mexico calculates real estate transactions in pesos, not in US dollars.

Based on our client scenario at TFX: A client purchased a Playa del Carmen condominium in 2016 for $200,000 USD when the Bank of Mexico fixing rate was approximately MXN 18.50 per USD (purchase price: MXN 3,700,000). They sold in 2025 for $200,000 USD when the rate had moved to MXN 17.00 per USD (sale proceeds: MXN 3,400,000). In peso terms, this looks like an MXN 300,000 loss – so no Mexican ISR owed. But if the rate had moved to MXN 20 per USD instead, the peso proceeds would be MXN 4,000,000, creating a taxable peso gain of MXN 300,000 even though the dollar price was identical. The US calculation adds a second layer: the IRS requires conversion to USD using the exchange rate on the date of each transaction, so the two calculations can produce entirely different gain figures.

For the official peso/dollar rate, the Bank of Mexico (Banxico) publishes daily fixing rates used in Mexican tax calculations. The US Treasury also publishes foreign exchange rates that are acceptable for IRS conversion purposes.

US tax rules for selling property in Mexico

US citizens and green card holders report worldwide income, including gains from foreign real estate. Selling property in Mexico as an American citizen carries the same federal tax implications as selling investment property in any US state – you must report the gain, calculate the adjusted basis in US dollars, and apply the correct rate based on your holding period and total taxable income.

The following 4 factors determine how the US taxes a sale of Mexican real estate:

  1. Holding period – property held more than 12 months produces a long-term capital gain taxed at 0%, 15%, or 20% (2025); property held 12 months or less is a short-term gain taxed at ordinary income rates (10%–37%)
  2. Adjusted basis – your original purchase price in USD plus eligible improvements and certain closing costs, minus any depreciation claimed or required during rental periods
  3. Selling expenses – real estate commissions, legal fees, and other costs of sale reduce the realized gain
  4. Depreciation recapture – if the property was ever rented, the IRS may require recapture of depreciation at up to 25% under IRC §1250, regardless of your capital gains rate

For 2025, long-term capital gains rates are: 0% for single filers with taxable income up to $48,350; 15% from $48,351 to $533,400; 20% above $533,400. For married filing jointly: 0% up to $96,700; 15% from $96,701 to $600,050; 20% above that. These thresholds apply to the 2025 tax year filed in 2026 (IRS Topic 409). The full step-by-step sale calculation is explained in the IRS Form 8949 instructions.

A capital loss on personal-use Mexican property – a vacation home you never rented – is not deductible for US federal income tax purposes. If you sell a Mexican vacation property at a loss, the IRS does not allow you to use that loss to offset other gains.

The table below shows how the US treats different categories of Mexican property at the federal level. Selling property in Mexico taxes vary significantly depending on whether the property was your primary home, a rental, or a personal-use vacation property.

Property type US tax treatment Primary reporting form
Primary residence (meets Section 121 tests) Gain may be excluded up to $250,000 (single) / $500,000 (MFJ) Form 8949 + Schedule D when reporting is required; Form 4797 only for a business/rental portion or depreciation recapture
Long-term rental property Capital gain + depreciation recapture (max 25%) on sale Schedule E for rental years; Form 4797 for rental property used in a trade or business, or Form 8949/Schedule D if the rental was an investment activity rather than a trade or business
Vacation home / personal-use property Capital gain taxed at applicable long-term rate; capital loss not deductible Form 8949 + Schedule D if there is a taxable gain or a Form 1099-S reporting requirement; Form 4797 only if depreciation recapture applies
Mixed-use (part rental, part personal) Gain allocated; depreciation recapture applies to rental portion Allocation required; report the business/rental portion on Form 4797 when required and the personal capital portion on Form 8949/Schedule D when reportable

 

You can review our capital gains and losses guide for additional detail on calculating and reporting gains from all asset sales.

Reporting the sale on Form 8949 and Schedule D

Every sale of Mexican real estate that is taxable in the US must be reported on Form 8949 and then carried to Schedule D of Form 1040. All figures must be reported in US dollars; all peso amounts are converted using the Bank of Mexico (or US Treasury) exchange rate on the applicable date of each transaction. The IRS Form 8949 instructions detail the step-by-step calculation.

The following 7 items are required to complete the Form 8949 calculation for a Mexican property sale:

  1. Gross sale proceeds in USD – using the exchange rate on the closing date
  2. Date of sale – for holding period determination
  3. Date of purchase – for holding period and basis calculation
  4. Original cost basis in USD – using the exchange rate on the original purchase date
  5. Capital improvements added to basis – in USD, using the exchange rate when each cost was incurred
  6. Selling expenses – real estate commissions, legal fees, and certain closing costs paid by the seller
  7. Depreciation claimed or allowable – reduces basis and must be recaptured on sale if the property was rented

Your tax preparer will also need: the closing statement from the Mexican sale, the original escritura, all improvement facturas, the notary's ISR calculation, proof of Mexican ISR withheld and paid to SAT, and Banxico exchange-rate records for both the purchase date and the sale date.

Can the US home-sale exclusion apply to Mexican property?

Yes – IRC Section 121 applies to a primary residence anywhere in the world, including Mexico. A US citizen who used a Mexican home as their principal residence may exclude up to $250,000 of capital gain from federal income tax (single filer) or $500,000 (married filing jointly), provided both the ownership and use tests are satisfied. The property does not need to be in the United States to qualify.

To meet the Section 121 ownership and use tests, the following 2 conditions must both be satisfied within the 5-year period ending on the sale date:

  • Ownership test: You owned the property for at least 24 months (they do not need to be consecutive)
  • Use test: You used the property as your principal residence for at least 24 months (they do not need to be consecutive)

The examples below illustrate when Section 121 applies and when it does not:

  • Vacation home, never used as primary residence – does not qualify; the use test cannot be met
  • Former primary residence, converted to rental more than 3 years before sale – generally does not qualify; the 24-month use test typically cannot be met within the 5-year window
  • Primary residence for 3 years, then rented for 2 years, then sold – likely qualifies for the exclusion, but depreciation recapture from the rental period still applies to the rental portion
  • Primary residence for 2 years, then sold from abroad – likely qualifies for the full exclusion if both tests are met

See IRS Publication 523, Selling Your Home, for the full ownership and use test rules, partial exclusion eligibility for certain job or health-related moves, and instructions for handling depreciation adjustments.

What if the Mexican property was rented out?

Rental history changes the US tax calculation significantly. If you rented your Mexican property during any year of your ownership, the following 3 obligations apply under US tax law:

  1. Annual rental income reporting – foreign rental income is reported on Schedule E (Form 1040) each year the property is rented, with deductions for eligible expenses
  2. Foreign rental depreciation – for a 2025 return, residential rental property placed in service after 2017 generally has a 30-year ADS recovery period. Property placed in service before January 1, 2018 generally used a 40-year ADS recovery period under prior law. Confirm the placed-in-service date before calculating depreciation or recapture
  3. Depreciation recapture on sale – the accumulated depreciation (or the amount that was "allowed or allowable," even if never claimed) is recaptured and taxed at a maximum rate of 25% under IRC §1250 in the year of sale

The critical issue: not claiming depreciation in prior years does not eliminate recapture risk. The IRS taxes the amount "allowed or allowable" – meaning if you were required to take the deduction and did not, recapture can still apply. See IRS Publication 527, Residential Rental Property, for the applicable rules on foreign rentals, eligible deductions, and the correct depreciation method.

Does the US-Mexico tax treaty cover capital gains?

The US-Mexico income tax treaty does not exempt US citizens from US capital gains tax on Mexican real estate. Article 13 of the treaty allocates capital gains taxing rights: gains from immovable property situated in Mexico may be taxed by Mexico. However, the treaty's saving clause preserves the US right to tax its citizens on worldwide income – meaning the US retains full authority to tax a US citizen's Mexican property gain regardless of where the citizen lives.

US Mexico tax treaty capital gains provisions establish who can tax, not who must be exempted. For most US citizens selling Mexican real estate, the treaty does not reduce the US tax bill directly. Instead, the foreign tax credit on Form 1116 is the mechanism that prevents double taxation by allowing Mexican ISR paid at closing to offset the US capital gains tax on the same gain.

If you take a treaty-based position that modifies your normal US tax treatment, you are generally required to disclose that position by attaching Form 8833 (Treaty-Based Return Position Disclosure) to your return. Failing to file Form 8833 when required can result in a penalty of $1,000 per occurrence under IRC §6712.

You can access the full treaty text and supporting documents or read the convention text directly in the IRS-published PDF of the US-Mexico income tax treaty.

Can the Mexican capital gains tax offset the US tax?

Yes – Mexican ISR paid on the sale of Mexican real estate is generally a creditable foreign income tax under IRC §901. You claim it on Form 1116 under the Passive Income category. The credit is dollar-for-dollar against your US tax on the same gain, subject to one key limitation: the credit cannot exceed the US tax attributable to the foreign-source income. If the Mexican ISR exceeds your US tax on the Mexican gain, the excess credit may carry forward for 10 years.

Not every payment made at a Mexican closing qualifies as a creditable foreign income tax. Predial (the municipal property tax), real estate transfer taxes, notary fees, and any penalties or fines paid to Mexican authorities are not creditable under IRC §901. Only the ISR component – the income tax on the capital gain – qualifies. Your notary's closing statement should itemize these amounts separately; if it does not, ask for a breakdown before leaving the closing.

Based on our client scenario at TFX: A single US citizen sold a Guadalajara property in the 2025 tax year and realized a long-term capital gain of $80,000 USD after deductions. The notary withheld approximately $14,000 USD in Mexican ISR (using the 35%-of-net-gain method). The client's US federal long-term capital gains tax at 15% on that $80,000 gain was $12,000. The Form 1116 credit offset the full $12,000 in US tax, reducing the federal US liability to $0. The remaining $2,000 in unused Mexican ISR credits carried forward. Note: this is an illustrative example only. Actual results depend on the client's full return, filing status, applicable exchange rates, and Form 1116 limitation calculations.

See the IRS Form 1116 instructions for the complete credit calculation, the passive income limitation rules, and carry-forward procedures.

How to avoid or reduce capital gains tax in Mexico legally

The search phrase "how to avoid capital gains tax in Mexico on property" is common among US sellers – but the accurate framing is: how to legally reduce your Mexican ISR through proper planning and documentation. Legitimate tax reduction strategies exist and depend primarily on your residency status and your records.

The following 6 strategies can reduce your Mexican ISR bill, subject to your specific facts:

  1. Obtain your RFC before listing – a valid RFC (Registro Federal de Contribuyentes) enables more deductions and, for Mexico residents, access to the primary residence exemption of up to 700,000 UDIs (approximately 5 million to 6 million pesos as of 2025). Getting the RFC after signing a purchase agreement is often too late.
  2. Document capital improvements with valid facturas – every renovation or addition should be invoiced by a SAT-registered contractor. Facturas increase your deductible basis and reduce the taxable gain. Improvements without facturas cannot be deducted, period.
  3. Apply the primary residence exemption if eligible – Mexican tax residents may qualify for the casa habitación exemption if the sale meets the 700,000 UDI limit, is formalized before a fedatario, and the exemption was not used in the prior 3 years.
  4. Request the notary's dual calculation – before signing, ask the notary to calculate ISR under both methods: 25% of gross proceeds and 35% of net gain. If your documented deductions are substantial, the 35%-of-net method frequently produces lower withholding.
  5. Use the INPC inflation adjustment to your advantage – Mexico adjusts the original acquisition cost upward using the national inflation index (INPC), which reduces the nominal gain. The longer you have owned the property, the larger the INPC adjustment and the smaller the taxable gain.
  6. Engage a Mexican notary early – the notary controls the closing calculation. Reviewing the proposed ISR calculation before signing – not after – is the only opportunity to correct errors or challenge incorrect deduction exclusions.

The table below summarizes legal do's and don'ts for reducing your Mexican capital gains tax. Actions in the "Don't" column can result in higher withholding, disallowed deductions, or SAT penalties.

Do Don't
Get your RFC before listing the property Assume your US ITIN or SSN substitutes for an RFC
Collect valid facturas for every capital improvement Rely on bank wire records or informal receipts
Ask the notary to calculate both ISR methods before choosing Accept the first calculation without comparing methods
Confirm Mexico tax residency with a professional before sale Assume immigration residency equals Mexico tax residency
Keep all facturas and records for at least 5 years post-sale Discard facturas once the sale closes
Request the SAT payment confirmation from the notary at closing Assume you can get ISR proof later if needed for Form 1116

 

Property tax in Mexico for foreigners – including both the predial and the ISR at sale – involves rules that are easy to misread without professional guidance. SAT's régimen de enajenación de bienes page has the current statutory basis for the ISR deduction rules, and the Banxico exchange-rate tool is used to convert peso amounts for both the Mexican and US calculations.

Selling inherited property in Mexico from the US

Inheriting Mexican real estate as a US person creates a cross-border situation where Mexico and the US may assign two entirely different starting basis figures to the same property. Understanding both is essential before you sell.

The table below shows how the inherited property basis differs under US and Mexican tax rules depending on who left the property. The basis gap between the two systems can create a taxable gain in Mexico even when the US calculation shows no gain, and vice versa.

Scenario US basis rule Mexico basis rule
Inherited from a US person Generally stepped up to FMV at date of death (IRC §1014) Original INPC-adjusted acquisition cost – no step-up
Inherited from a Mexican national FMV at date of death (IRC §1014) Varies by Mexican probate outcome; consult Mexican counsel
Jointly owned; one owner dies US: step-up on the decedent's portion only (unless community property) Mexico: probate transfer; notary confirms basis on transfer
Sold shortly after inheritance US: gain may be near zero if FMV basis approximates sale price Mexico: gain measured from original cost – taxable gain is possible even if no US gain exists

 

Under US law, property received by inheritance generally takes a basis equal to the fair market value on the date of the decedent's death under IRC §1014 (the "stepped-up basis" rule). If you sell shortly after inheriting, the US gain is often minimal because the sale price is close to the stepped-up basis. See IRS Publication 551, Basis of Assets, for the detailed rules on inherited property.

Mexico does not recognize a stepped-up basis. The acquisition cost for Mexican ISR purposes is typically the original purchase price of the deceased, adjusted for inflation using the INPC index. That figure can be significantly lower than the current market value, which means a sizable Mexican ISR liability can exist even when the US shows no capital gain.

Mexican probate (sucesión) must be completed before the property can be legally transferred or sold. The process involves a Mexican notary and attorney and can take months to years, depending on the estate's complexity and whether there is a valid Mexican will. Property tax in Mexico for foreigners in an inheritance situation also involves potential state-level real estate transfer taxes, which vary by Mexican state.

Selling property in Mexico from the US requires careful coordination with a Mexican attorney and notary, especially if you cannot be present at closing. The Notario Público – a legally certified official with authority over property transactions – controls the legal validity and ISR withholding at closing. You can manage most steps remotely, but you will generally need a notarized Power of Attorney (Poder Notarial) authorizing a representative to sign on your behalf.

The table below shows the typical sequence of steps to sell Mexican real estate from abroad. Skipping or rushing any step – particularly RFC registration and predial clearance – can delay closing or result in higher tax withholding.

Step What happens Who is responsible
1. Confirm title and ownership structure Verify escritura, fideicomiso documents, and any liens Your Mexican attorney
2. Clear predial and utility accounts Confirm all municipal property taxes, HOA dues, and utility balances are current Seller
3. Review fideicomiso (if applicable) Confirm bank trust status, annual fees, and transfer requirements Your bank + attorney
4. Retain a licensed agent and attorney Agree on listing terms, purchase agreement structure, and remote signing logistics Seller + agents
5. Sign the purchase agreement Set price, timeline, and deposit terms; execute Power of Attorney if selling remotely Both parties + notary
6. Notary due diligence Notary verifies title, clears liens, and calculates both ISR methods Notary
7. Closing (escrituración) Final documents signed; ISR withheld and remitted to SAT Notary
8. Transfer of funds Net proceeds wired to seller; confirm escrow or direct wire details Escrow company / bank
9. US tax filing Report sale on Form 8949, Schedule D, Form 1116, and any other required forms Seller + US tax preparer

 

The US Embassy in Mexico publishes a property law overview that covers legal requirements for foreign sellers. SAT administers all Mexican ISR reporting related to the sale and is the authority your notary files with at closing.

Documents to gather before closing

Organizing your documents before you list the property reduces delays at closing and protects your ability to claim deductions in both Mexico and the US. The following 14 documents are commonly required or strongly recommended for a US citizen selling Mexican real estate:

  1. Escritura (title deed) – original or certified copy of the most recent title document
  2. Passport – your current valid US passport (or other official photo ID)
  3. RFC document – proof of your Mexican taxpayer ID number
  4. CURP – if registered with Mexico's population registry
  5. Fideicomiso documents – the bank trust agreement and recent annual fee receipts, if applicable
  6. Predial receipts – proof that municipal property taxes are current, typically for the last 5 years
  7. Utility and HOA clearance letters – written confirmation from each provider that no balance is owed
  8. Original purchase documents – the closing statement and all invoices from when you originally bought
  9. Improvement facturas – valid Mexican digital tax receipts for all capital improvements made since purchase
  10.  Real estate commission invoice (factura) – from your listing agent at the time of the current sale
  11.  Notary's ISR calculation – the breakdown of ISR under both the 25%-gross and 35%-net methods
  12.  SAT payment confirmation – proof that the ISR was withheld and remitted (provided by the notary after closing)
  13.  Exchange-rate records – Banxico daily fixing rates for the original purchase date and the sale closing date
  14.  Power of Attorney – if you cannot be present at closing

See our real estate articles for additional guides on foreign property ownership, reporting, and basis tracking.

What happens when sale proceeds go into a Mexican bank account?

If you deposit your Mexican sale proceeds into a Mexican bank account – even temporarily while arranging a wire transfer to the US – you may trigger two separate US reporting obligations: FBAR (FinCEN Form 114) and Form 8938 (FATCA).

FBAR applies when the combined maximum value of all your foreign financial accounts exceeds $10,000 at any time during the calendar year. That threshold is aggregate across all foreign accounts, not per account. A single Mexican bank account holding $500,000 in sale proceeds for one week still triggers FBAR for the full year. The non-willful FBAR penalty is up to $16,536 per violation (2025 inflation-adjusted figure). Willful violations carry penalties of the greater of $165,353 or 50% of the account balance per violation (2025). FBAR is filed electronically with FinCEN by April 15 each year, with an automatic extension to October 15.

Form 8938 uses higher thresholds that vary by filing status and residency. For US citizens living abroad: $200,000 at year-end or $300,000 at any time during the year (single filers); $400,000 at year-end or $600,000 at any time (married filing jointly). Form 8938 is attached to your Form 1040.

Understand your post-sale reporting exposure – see our foreign assets disclosure guide for the full FBAR and Form 8938 thresholds, instructions, and penalties. You can also access official filing guidance and submit FinCEN Form 114 electronically at the FinCEN FBAR reporting page.

 

Pro tip
Even if your Mexican sale proceeds pass through a Mexican account for only a few days before being wired to the US, the account balance on the day of the peak value still counts toward the FBAR threshold for that calendar year. If proceeds exceed $10,000 – which they almost certainly will for any real property sale – plan for FBAR filing and keep account statements showing the balance on each date.

Example: US citizen sells a Mexican home

The following calculation shows how Mexican ISR and US capital gains tax work in parallel on the same sale. All numbers are illustrative only, using simplified assumptions. Currency conversions are approximated.

Based on our client scenario at TFX: A married couple (filing jointly, living in the US) sells a Puerto Vallarta home in the 2025 tax year. They purchased the property in 2014 for $300,000 USD as a vacation home. They made $50,000 USD in eligible capital improvements, all supported by valid facturas. They sell for $530,000 USD. The closing date exchange rate is MXN 17.00 per USD. The notary calculates both ISR methods and presents the net-gain option as lower.

The table below compares the Mexican and US tax calculations side by side for the same transaction. The foreign tax credit eliminates the US tax obligation in this scenario because the Mexican ISR exceeds the US capital gains tax on the same gain.

Item Mexico calculation (USD equivalent) US calculation (USD)
Sale price $530,000 $530,000
Original purchase price $300,000 (INPC-adjusted; approx. $330,000) $300,000
Eligible improvements $50,000 $50,000
Selling costs (commission + notary) $26,500 $26,500
Taxable gain ~$123,500 $153,500
Mexican ISR withheld (35% of net gain) ~$43,225
US long-term capital gains (15% of $153,500) $23,025
Foreign tax credit (Form 1116) applied ($23,025)
Net US federal tax owed $0
Unused Mexican ISR credit carried forward ~$20,200 (10-yr carryforward)

 

NOTE! Section 121 does not apply here because this was a vacation home, not a primary residence. The couple still owes the full Mexican ISR to SAT; the FTC only reduces the US side. Actual results will depend on the full return, applicable exchange rates, the correct Form 1116 limitation calculation, and state tax obligations.

For a full walkthrough of how to complete the credit form, see our step-by-step guide to claiming the Form 1116 foreign tax credit.

Common mistakes US sellers make

The following 8 errors most commonly result in either overpaying Mexican ISR or facing unexpected US tax and reporting obligations after closing:

  1. Assuming Mexico's ISR ends the US obligation. The IRS requires you to report the sale on Form 8949 and calculate US capital gains tax, even if the Mexican ISR fully covered the economic liability. Filing is required regardless of whether any US tax is ultimately owed.
  2. Converting amounts using the wrong exchange rate. The IRS requires USD conversion using the rate on the date of each transaction. Using a current rate for a purchase made 10 years ago produces an incorrect adjusted basis and an incorrect gain figure.
  3. Losing facturas before closing. Original facturas for capital improvements must be presented to the notary. Bank transfers and informal receipts are not substitutes. Once they are gone, the deduction is gone.
  4. Ignoring depreciation from rental years. If you rented the property during any period of ownership, the IRS requires depreciation. Recapture applies to amounts "allowed or allowable" – meaning years in which you should have taken the deduction but didn't still count toward recapture on sale.
  5. Failing to report sale proceeds in a Mexican account. A Mexican account that briefly holds sale proceeds above $10,000 triggers FBAR for the entire calendar year. Failure to file carries civil penalties up to $16,536 per non-willful violation (2025).
  6. Assuming a treaty exemption applies. The US-Mexico tax treaty does not exempt US citizens from US tax on Mexican property gains. The saving clause preserves full US taxing rights. Relief is through the foreign tax credit, not a treaty exclusion.
  7. Not obtaining the SAT payment proof for the Form 1116 credit. To claim the Mexican ISR as a foreign tax credit, you need documentary evidence that the tax was paid to SAT. Get the payment confirmation from your notary at the closing table; do not assume you can obtain it later.
  8. Selling before establishing an RFC or getting a notary review. An RFC can significantly reduce your ISR bill by unlocking deductions and, for Mexico residents, the primary residence exemption. Selling without one often results in the notary applying the 25%-of-gross calculation by default.

Review the IRS Form 8949 information page for the complete reporting requirements for capital asset sales. For FBAR reporting rules and filing instructions, see the FinCEN FBAR page.

Pre-sale tax checklist for Americans selling property in Mexico

This checklist covers selling property in Mexico taxes, and reporting obligations from the decision to sell through the US filing deadline.

Completing every item below reduces the risk of overpaying Mexican ISR, missing a US filing deadline, or losing documentation needed for the Form 1116 credit. Items missed before closing are often impossible to recover.

The table below reorganizes the pre-sale checklist by transaction phase, pairing each action with the specific Mexico-side and US-side records it produces. Gathering the right document at each phase – not after closing – is what determines whether you can use the 35%-of-net-gain ISR method in Mexico and the full Form 1116 credit on the US return.

Phase Key actions Mexico-side records to gather US-side records to gather
Before listing Confirm Mexico tax residency status with a Mexican tax professional. Obtain or confirm your RFC (and CURP, if applicable). Locate the original escritura and purchase-date closing documents. Gather every capital improvement factura received since purchase. Determine whether the 700,000 UDI primary residence exemption may apply. Review fideicomiso trust documents and confirm annual bank fees are current. RFC and CURP registration. Original escritura. Improvement facturas. Fideicomiso trust agreement and fee receipts. Proof of primary residence (utility bills, voter ID, SAT filings) if claiming the exemption. Original purchase price and date in USD. Exchange rate (Banxico or US Treasury) on the original purchase date. Records of any depreciation claimed during rental years.
Before signing Confirm predial (municipal property tax) is current for all relevant years. Obtain utility and HOA clearance letters. Select a licensed Mexican attorney and arrange a notarized Power of Attorney if signing remotely. Engage a Mexican notary and confirm title review has started. Predial receipts (typically last 5 years). Utility and HOA clearance letters. Notarized Power of Attorney, if signing remotely. Attorney engagement letter. None typically required at this stage; confirm with your US preparer whether any prior-year foreign rental reporting (Schedule E) needs to be brought current before the sale closes.
Before closing Request the notary's ISR calculation under both methods (25% of gross / 35% of net gain). Confirm the exact ISR amount to be withheld and remitted to SAT. Record the Banxico fixing rate on the closing date. Obtain written SAT payment confirmation of the ISR withheld. Notary's dual ISR calculation (both methods, in writing). Written SAT payment confirmation of ISR withheld at closing. Banxico (or US Treasury) exchange rate on the closing date, for converting sale proceeds to USD.
After closing Retain all facturas, the closing statement, and the SAT ISR confirmation for at least 5 years. Monitor any Mexican bank account receiving proceeds for FBAR / Form 8938 thresholds. File FinCEN Form 114 (FBAR) if any foreign account exceeded $10,000 at any point during the year (due April 15, automatic extension to October 15). Transfer proceeds to a US account promptly. Closing statement. SAT ISR payment confirmation. All facturas (acquisition, improvements, commission, notary fees). Foreign account statements showing peak balance for the year. FinCEN Form 114 (FBAR) filing confirmation, if the $10,000 threshold was met.
US tax filing Report the sale on Form 8949 with Schedule D attached to Form 1040. Complete Form 1116 to claim the Mexican ISR as a foreign tax credit. Apply the Section 121 exclusion on Form 8949 if the primary residence tests are met. Report any prior-year rental income on Schedule E if not previously reported. File amended returns to claim prior-year depreciation if rental use was not properly reported. SAT ISR payment confirmation (required to support the Form 1116 credit). Form 8949, Schedule D, Form 1116, and Schedule E (if the property was rented). Amended returns if prior-year depreciation was missed.

 

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FAQs about selling property in Mexico taxes

1.Do US citizens pay tax when selling property in Mexico?

Yes. US citizens must report the sale of Mexican property on a US federal tax return and may owe US capital gains tax, regardless of where they live. Mexico also withholds ISR at closing through the notary. The foreign tax credit (Form 1116) may reduce or eliminate the US tax obligation, but the return must be filed and the gain reported on Form 8949 and Schedule D.

2. What is the capital gains tax in Mexico for nonresidents?

Nonresidents can elect one of two calculation methods at closing: 25% of the gross sale price with no deductions, or 35% of the net gain after allowable deductions (acquisition cost, documented improvements, commissions, notary fees). The notary calculates both and applies the elected method. Mexico uses an INPC inflation adjustment on the acquisition cost, which can increase the deductible basis and reduce the taxable gain.

3. Can I avoid capital gains tax in Mexico?

You may be able to reduce or, in limited cases, eliminate Mexican ISR if no taxable gain exists or a statutory exemption applies, but you can legally reduce it. Mexico residents with a valid RFC may qualify for a primary residence exemption of up to 700,000 UDIs (approximately 5 million to 6 million pesos as of 2025), usable once every 3 years. A seller may reduce the taxable gain through qualifying documented deductions, and a nonresident may use the 35% net-gain method only if the Article 160 requirements are met.

4. Does the US-Mexico tax treaty cover capital gains?

The treaty establishes taxing rights but does not exempt US citizens from US tax. Under Article 13, Mexico can tax gains from real estate located within Mexico. The US retains full taxing authority under the saving clause. The primary relief mechanism for US citizens is the foreign tax credit on Form 1116, not a treaty exemption. Taxpayers who take a treaty-based position that modifies their US tax may need to file Form 8833 (penalty: $1,000 per occurrence under IRC §6712 if omitted when required).

5. Can I claim Mexican tax as a foreign tax credit?

Yes. Mexican ISR withheld on the sale of real estate is generally a creditable foreign income tax under IRC §901. Claim it on Form 1116 under the Passive Income basket. The credit is limited to your US tax on the foreign-source gain and cannot generate a refund. Unused credits carry forward for 10 years. Predial, notary fees, and real estate transfer taxes are not creditable – only the ISR income tax component qualifies.

6. What IRS forms do I file after selling Mexican property?

The core forms are Form 8949 (sale details) and Schedule D (capital gains summary), both attached to Form 1040. If Mexican ISR was withheld, file Form 1116 to claim the foreign tax credit. If Section 121 exclusion applies, it reduces the reportable gain on Form 8949. If you take a treaty position, attach Form 8833. If a Mexican account held proceeds above the FBAR threshold, file FinCEN Form 114 separately with FinCEN, and possibly Form 8938 with your return.

7. Do I need to file FBAR after selling my Mexican property?

FBAR (FinCEN Form 114) is required if the combined maximum value of all your foreign financial accounts exceeded $10,000 at any time during the calendar year. Sale proceeds deposited into a Mexican bank account – even briefly – count toward that threshold. The FBAR is filed electronically with FinCEN by April 15, with an automatic extension to October 15. The non-willful penalty is up to $16,536 per violation (2025); willful violations can reach $165,353 or 50% of the account balance, whichever is greater.

8. What if I inherited Mexican property?

Inherited Mexican real estate generally receives a basis equal to the fair market value at the date of death under IRC §1014 for US purposes. If you sell shortly after inheriting, the US gain may be minimal. Mexico does not recognize a stepped-up basis; the ISR calculation uses the decedent's original acquisition cost, adjusted for INPC inflation, which may be significantly lower than current market value. Mexican probate must be completed before the property can be transferred or sold.

9. What if I sold at a loss?

A loss on the sale of personal-use Mexican property (a home you never rented) is not deductible for US federal income tax purposes under IRC §165. If the property was a rental, a capital loss may be deductible, subject to passive activity loss rules and the capital loss deduction limitations under IRC §1211. For Mexican purposes, if the INPC-adjusted acquisition cost exceeds the gross proceeds, Mexico may show no taxable gain under the 35%-of-net method.

10. Do I need a Mexican RFC to sell?

An RFC is not legally required to complete a Mexican property sale, but not having one significantly limits your options. Without an RFC, the notary may be unable to verify deduction entitlements or apply the primary residence exemption, resulting in higher default withholding. If you plan to sell within the next 12 months, obtaining an RFC before listing gives the notary more flexibility to reduce the ISR at closing.

Further reading

Capital gains tax on foreign property: US reporting, exclusions, and how to reduce tax
Can US citizens buy property in Mexico? 2026 complete guide
Foreign property tax: what to know before buying or selling real estate abroad
Tax Information Your Need Regarding Capital Gains and Losses
Ines Zemelman
Ines Zemelman
founder and President at TFX
Ines Zemelman, EA, is the founder and president of TFX, specializing in US corporate, international, and expatriate taxation. With over 30 years of experience, she holds a degree in accounting and an MBA in taxation.
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