Selling Your Rocky Point Property? Here's What Capital Gains Tax Really Costs You

If you own a place in Puerto Peñasco and you've thought about selling, one question comes up before any other: how much of the sale price do I actually keep?

Most owners worry about capital gains tax — and they should, because it's usually the second-biggest cost of selling after the commission. But here's what I've learned working this market: the fear is often bigger than the reality, and the sellers who get hurt are the ones who never asked the right questions before listing. So let's walk through it plainly.

How capital gains tax (ISR) works in Mexico

Mexico doesn't have a separate "capital gains" tax the way the U.S. does. When you sell, the gain is treated as income and taxed under Mexican income tax law (ISR). The important part: your Notario Público — a government-appointed official who certifies the sale — calculates the tax and withholds it at closing, in pesos, before you ever see the proceeds.

How much you pay depends mostly on one thing: whether you're a Mexican tax resident.

• If you're a non-resident (no Mexican RFC tax ID): the default is a flat withholding of about 25% of the gross sale price — the full price, not just your profit. If you have an RFC and documented receipts for your purchase and improvements, you may instead qualify for the "net gain" method, taxed at a higher rate but only on your actual profit — which often comes out lower.
• If you're a Mexican resident with an RFC and CURP: the tax runs on a sliding scale on your net gain, and you may qualify for a primary-residence exemption that can dramatically reduce, or even eliminate, the tax entirely if the home was your main residence.

This is exactly why two neighbors selling nearly identical condos can walk away with very different net checks. The details matter, and your notario has the final say.

One structure worth asking about: LLC or corporate ownership

If your property is held in a U.S. LLC or a Mexican corporation, the sale can sometimes be structured as a transfer of the entity rather than a transfer of the property itself. Because no Mexican title changes hands at closing, the notario generally doesn't withhold ISR — which is why many owners here hold title this way.

It's not a magic "no tax" button, though: a U.S. seller still has their own U.S. capital gains to account for, the buyer takes on the entity and its history, and Mexican rules on indirect transfers can still apply in some cases. Whether this route makes sense for you is a conversation for your notario and a cross-border tax professional — and it's one of the biggest reasons it pays to plan your exit before you list.

The gotcha almost everyone misses: it's calculated in pesos

Your tax is figured in Mexican pesos, no matter what currency you bought or sold in. If the peso moved against the dollar between your purchase and your sale, you can end up with a "paper gain" in pesos that's larger than the gain you feel in dollars — and get taxed on it. This surprises people every year, and it's worth modeling before you commit to a price.

The other costs of selling

Beyond ISR, plan for:

• Real estate commission — typically 5–7% of the sale price in Rocky Point, paid by the seller, plus 8% IVA (the reduced border-zone sales tax) on the commission itself.
• Fideicomiso cancellation — if your property is in the coastal restricted zone (most of Rocky Point is), it's held in a bank trust that gets cancelled or transferred at sale.
• Notario, certificates, and admin — the paperwork that makes the sale official and clean.

See your estimate right now

I built a quick calculator so you can get a ballpark of what you'd actually net — enter your numbers and see the whole picture in one screen. Treat it as a starting point, not a final figure: your notario sets the real ISR.

Want your real number?

The estimate above gets you close, but every sale has its own details — your residency status, your documentation, how the peso has moved, and whether an exemption applies. Those swings are often worth tens of thousands of dollars, and they're the difference between overpaying and keeping what's yours.

I'd be glad to walk through your specific situation, give you a straight answer on where you stand, and connect you with the right notario and tax professional to lock it in. No pressure, no obligation.

Book a free 15-minute consultation →

This article is general information, not legal, tax, or financial advice. Mexican capital gains tax is calculated in pesos and finalized by the Notario Público at closing. Always confirm your situation with a licensed Mexican notario and a qualified cross-border tax professional before making decisions.