Pesos or Dollars? The Dual-Currency Closing Strategy That Can Save You Thousands in Cabo

The Currency Decision Most Buyers Never Think About

Every week I talk to a buyer who wired $1.2 million in US dollars to a Mexican escrow account and let the notario handle the conversion to pesos. They had no idea that the exchange rate used was 1.8% worse than what they could have gotten themselves. On $1.2 million, that is $21,600 — gone, silently, before a single peso hit the seller's account.

How Money Flows in a Cabo Closing

To understand the currency strategy, you first need to understand how money moves in a Mexican real estate closing. It is different from the US process in important ways.

In Mexico, the notario publico is the central figure. They are a government-appointed legal official who handles the closing, calculates taxes, and ensures the transfer is registered. The notario receives funds, applies them to taxes and fees, pays the seller, and records the deed (escritura).

Two Pools of Money

Every closing has two pools of money, and they operate in different currencies:

1. The purchase price: Usually negotiated in USD (sometimes in pesos for developer projects). This goes to the seller.
2. Closing costs: Always denominated in pesos. This includes the acquisition tax (ISAI, 2% in BCS), notario fees, registration fees, the appraisal (avalúo), and fideicomiso setup. Total: 4-6% of purchase price.

Here is where the savings opportunity lives: if you send one big wire in USD and let the notario convert everything to pesos at their bank's rate, you are paying a premium on both pools. If you convert strategically — paying the peso-denominated costs in pesos at a better rate — you reduce that premium significantly.

The Exchange Rate Spread: Where the Money Goes

Let me put real numbers on this. As of September 2026, the USD/MXN interbank mid-market rate hovers around 18.0 to 18.5. Here is what different conversion channels typically offer:

Conversion Channel	Typical Spread	Cost on $1M
Interbank mid-market (benchmark)	0%	$0
Wise / OFX / CurrencyFair	0.3-0.6%	$3,000-$6,000
Mexican bank (your own account)	0.5-1.0%	$5,000-$10,000
US bank international wire	1.0-2.0%	$10,000-$20,000
Notario / escrow conversion	1.5-3.0%	$15,000-$30,000

The difference between the best and worst option: $12,000 to $24,000 on a million-dollar property. That is not a rounding error. That is a kitchen renovation.

Three Currency Strategies for Cabo Buyers

Strategy 1: The Simple Wire (Most Common, Most Expensive)

Wire USD from your US bank to the notario or escrow company. They convert everything to pesos at their bank's rate. You get one wire, one receipt, minimal hassle.

Cost: 1.5-3% exchange rate premium on the full amount. On a $1M purchase with $50K in closing costs, that is $15,750 to $31,500 in currency costs.

When it makes sense: If the time savings and simplicity are worth more to you than $15K+. Some buyers genuinely do not want to deal with FX optimization, and that is a valid choice.

Strategy 2: The Split Wire (Best Balance)

Wire the purchase price in USD directly to the seller (or escrow in USD). Convert only the peso-denominated closing costs yourself through a competitive FX provider and wire pesos to the notario.

Cost: 0.3-0.6% on the closing costs portion only. On $50K in closing costs, that is $150 to $300. The purchase price wire stays in USD and avoids conversion entirely if the seller accepts dollars.

When it makes sense: For most buyers. You save thousands on closing costs without the complexity of converting the entire purchase price.

Strategy 3: The Full Optimization (Maximum Savings)

Convert the entire amount — purchase price and closing costs — to pesos yourself through a competitive FX provider or your Mexican bank account. Wire pesos to the notario for everything.

Cost: 0.3-1% on the full amount. On $1.05M, that is $3,150 to $10,500 — a savings of $5,000 to $21,000 compared to the simple wire.

When it makes sense: When you have a Mexican bank account, the seller is pricing in pesos, or you have time to stage the conversion over multiple days to average your exchange rate.

Opening a Mexican Bank Account

Having a Mexican bank account gives you the most control over your currency strategy. You can fund it in advance, time your conversions when the rate is favorable, and wire pesos directly to the notario on closing day.

Requirements vary by bank, but generally you need:

• Valid passport
• Proof of address — a US utility bill typically works; some banks require a Mexican address
• Mexican tax ID (RFC) — your RFC can be obtained through your notario or accountant
• Immigration document — tourist visa (FMM) works for some banks; temporary or permanent residency gives you more options

BBVA, Santander, Banorte, and Scotiabank all serve foreign property owners in Los Cabos. BBVA tends to be the most accessible for non-residents. For a full checklist, see our banking and utilities setup guide.

AML Considerations for Large Transfers

Mexico's anti-money laundering reforms affect how cash and large wire transfers are handled in real estate transactions. Key rules to know:

• Cash limit: Real estate transactions cannot be conducted in cash above 500,000 UDIs (approximately $3.8 million MXN or ~$210,000 USD). All payments above this threshold must be banked — wire transfers, certified checks, or electronic funds transfers.
• Source of funds documentation: The notario is required to verify the source of funds for all real estate transactions. Be prepared to document your income, savings, or investment account liquidation.
• US reporting: Wire transfers over $10,000 to or from foreign accounts trigger FinCEN reporting. Your US bank handles this automatically, but be aware that multiple smaller transfers designed to avoid reporting (structuring) are a federal crime.

For the broader context on Mexico's AML framework and how it affects property buyers, read our complete AML guide.

Timing Your Conversion

If you have a few weeks between signing the purchase agreement and the closing date, you can stage your currency conversion to reduce timing risk. Here is what I recommend:

1. Convert closing costs immediately once you know the approximate amount. These are a smaller pool and the timing risk is lower.
2. Convert the purchase price in 2-3 tranches over the weeks before closing. This averages your exchange rate and reduces the risk of a bad day wiping out your savings.
3. Keep a 5% USD buffer in case closing costs come in higher than estimated or the closing date shifts.

The USD/MXN rate can move 2-3% in a week during volatile periods. Staging your conversion over 2-3 weeks smooths that volatility. Is it as good as perfectly timing the bottom? No. Is it better than converting everything on a single random day? Almost always.

For the full breakdown of closing costs you will encounter, see our complete closing costs guide. And for the exchange rate's broader impact on Cabo property values, read our USD/MXN analysis.