On a $500,000 USD coastal Mexican purchase, expect roughly $31,000 USD in all-in closing costs (~6.2% of purchase price). This calculator models the realistic all-in cost for a Mexican property closing — ISAI (state acquisition tax) by state, notary fees, registration, fideicomiso setup for coastal restricted-zone property, and other administrative items. Inland direct-title runs 5-7%; coastal restricted-zone with fideicomiso runs 7-9%.
It is built for honest underwriting of the closing-cost component for Mexican foreign-buyer transactions. It complements /mexico/closing-costs/ which provides the editorial detail behind the calculator outputs.
How to use the calculator
The calculator requires:
- Purchase price in USD (or USD-equivalent if MXN-denominated). For all-in modeling, use the agreed purchase price before adding closing costs.
- Property location: state and municipality. ISAI rates vary substantially by state.
- Coastal vs. inland: coastal property within the restricted zone (within 50 km of coastline or 100 km of land border) requires a fideicomiso bank trust, which adds setup cost and ongoing fees.
The calculator outputs:
- ISAI (Impuesto Sobre Adquisición de Inmuebles): state-level acquisition tax, typically 2-5% of higher of purchase price or appraised value depending on state.[State hacienda offices for ISAI rate framework, 2026-04]
- Notary fees: typically 0.5-1.5% of purchase price plus fixed components, with regional variation. Notario fee variance by state matters — Mexico City and Yucatán notarios have meaningfully different fixed-component schedules.[Colegio Nacional del Notariado Mexicano, notary fee framework, 2026-04]
- Property Registry fees: typically 0.2-0.5% of purchase price
- Fideicomiso setup (coastal only): one-time setup fee typically $1,500 USD-$3,000 USD plus the SRE permit fee
- Title insurance (optional): typically 0.5-0.7% of purchase price for buyers who elect coverage
- Buyer's attorney fees (optional but recommended): typically 1-1.5% of purchase price
- Other administrative costs: stamps, certificates, miscellaneous fees
Assumptions
- ISAI assessed on the higher of purchase price or catastral appraised value (varies by state)
- Notary fees include both percentage-of-price and fixed-component pieces; calculator uses typical mid-range
- Fideicomiso setup excludes the bank's annual trustee fee (modeled separately in /calculators/property-tax-mexico/)
- Title insurance and buyer's attorney are treated as optional but recommended; default-on for foreign buyers
When to override the default
Override the default when:
- Your buyer's attorney has confirmed an ISAI rate outside the state's typical range (some municipalities deviate)
- You're financing through a Mexican lender — additional origination, appraisal, and lender-required-attorney costs apply
- You're using a specific fiduciario bank with a setup-fee quote (BBVA, Banamex/Citi, HSBC, Santander vary modestly)
- You're skipping title insurance or buyer's attorney (not recommended but it does change all-in)
State-by-state ISAI summary
Predial vs. ISAI distinction matters: ISAI is state-level acquisition tax (one-time at closing); predial is municipal property tax (annual). There is no separate federal acquisition tax — the closing-side tax is ISAI by state.
- Yucatán (Mérida): ISAI typically 2-3% — among the lower foreign-buyer-popular states
- Quintana Roo (Cancún, PDC, Tulum): ISAI typically 3% with municipal variation
- Jalisco (Guadalajara, Vallarta, Lake Chapala): ISAI typically 2.5-3%
- Baja California Sur (Cabo): ISAI typically 2-3%
- Nayarit (Sayulita area): ISAI typically 2%
- Guanajuato (San Miguel de Allende): ISAI typically 2%
- Querétaro: ISAI typically 2%
- Mexico City: ISAI varies by progressive tier, typically 4-5%
For typical foreign-buyer-target prices ($300,000 USD-$1,000,000 USD), ISAI alone runs $6,000 USD-$50,000 USD depending on state and price.
All-in cost summary
Typical all-in by scenario:
- Inland direct-title (Mérida, San Miguel, Mexico City inland, Guadalajara): 5-7% all-in including ISAI, notary, registration, attorney
- Coastal restricted-zone with fideicomiso (Tulum, Cabo, Vallarta, PDC, Cancún, Sayulita): 7-9% all-in including fideicomiso setup and SRE permit
For a $500,000 USD coastal purchase:
- Purchase price: $500,000 USD
- ISAI (assuming 3%): $15,000 USD
- Notary fees (assuming 1%): $5,000 USD
- Registration: $1,500 USD
- Fideicomiso setup + SRE permit: $2,500 USD
- Buyer's attorney: $5,000 USD
- Other administrative: $2,000 USD
- All-in closing cost: $31,000 USD (~6.2% of purchase price)
- Total cash at closing: $531,000 USD
What the calculator does NOT account for
- FX cost on the purchase wire: see /calculators/cross-border-currency-cost/
- Annual carrying costs: see /calculators/property-tax-mexico/
- Financing-related costs: mortgage origination, appraisal, etc.
- Renovation or post-closing capital improvement budget
- ISR on capital gains at eventual sale
- Cross-border tax framework: home-side reporting and reconciliation runs separately
Next step
After running the calculator:
- Verify state-and-municipality ISAI rate with your buyer's attorney before underwriting — rates can vary modestly within a state
- Model the FX cost at /calculators/cross-border-currency-cost/
- Model the annual carrying cost at /calculators/property-tax-mexico/
- Review the closing-process detail at /mexico/how-to-buy-property/ for the full 60-120 day transaction sequence
For weekly Mexico cross-border-buyer reads, /newsletter sends one curated note per week.
For broader closing-cost editorial detail, see /mexico/closing-costs/. For coastal restricted-zone fideicomiso mechanics, see /mexico/fideicomiso/.
Disclaimer
This article is for informational purposes only and does not constitute financial or investment advice. Tax rates, fees, and regulatory frameworks change. Calculator outputs are estimates based on user inputs and should not be relied on without independent verification. Consult a qualified financial advisor and your buyer's attorney before making decisions based on this information.
Current as of 2026-10-06. We review financial content quarterly and update on rule changes. To report an error, contact us.