Off-plan deposit guarantees in Spain: how your money is protected

When you buy off-plan, you pay for a home before it exists. Spanish law protects you by forcing the developer to guarantee every payment, so if the project fails you get your money back. A 2026 Spanish Supreme Court ruling has just confirmed the bank cannot wriggle out of that protection by calling you an “investor”. Here is what that means for you, in plain language.

By Noel Picou and the team at Team Picou, RE/MAX Inmomas II, Finestrat. We guide buyers through new-build and off-plan purchases in 6 languages.

What “off-plan” really means

Off-plan (in Spanish, sobre plano) means buying a home that is not built yet. You sign a contract and pay in stages, a reservation, then instalments during construction, and the balance at the end, all before you can walk into the finished property.

That is normal and often a great way to buy. But it raises one obvious question: what happens to my money if the home is never finished?

The protection: a guarantee on every payment

Spanish law answers that question clearly. The developer must guarantee every payment you make during construction with one of two things:

• a bank guarantee (aval bancario), or
• an insurance policy.

If the project is not delivered, that guarantee refunds your money. Behind it sit three rules the bank or insurer has to respect:

1. Your money goes into a special account tied only to that development, kept separate from the developer’s ordinary business account.
2. The bank watches over those funds and how they are used.
3. You receive an individual guarantee in your name, covering the exact amount you paid, not a vague blanket promise.

In short: your deposit is not supposed to be just handed to the developer and hoped for. It is meant to be ring-fenced and insured.

What the Supreme Court confirmed in 2026

Banks have sometimes tried to escape this responsibility with a clever argument: “this buyer was an investor or a speculator, not an ordinary consumer, so the protection should not apply.”

A 2026 ruling of Spain’s Supreme Court (Tribunal Supremo) rejected that argument. The Court made clear that the bank’s duty to protect advance payments does not disappear because of the buyer’s profile. Whether you are buying a family home or an investment, the protection stands, and the courts will not accept technical arguments designed to dodge that liability.

The case behind the ruling shows why it matters: a foreign buyer had paid a large sum for a development that was never built, and spent years fighting to get the money back. The ruling exists to make sure that fight is not necessary in the first place.

What it means for you: if you buy off-plan correctly, with the guarantees in place, your advance payments are protected, and a bank cannot later claim you were “too much of an investor” to deserve that protection. The catch is the words if done correctly, which is exactly where good advice earns its keep.

The one gap to watch: paying before the permit

There is an important nuance. Under the current rules, the guarantee duty is at its strongest once the building permit (licencia) has been granted. Money paid before the permit is in place can be more exposed.

This does not mean never pay early. It means: before you transfer any money at an early stage, ask your lawyer to confirm exactly how that specific payment is secured. A well-run developer will have a clear answer.

Your before-you-pay checklist

Before a single euro leaves your account, your independent lawyer should confirm:

• Special account. There is a dedicated account in the development’s name, separate from the developer’s general account.
• Individual guarantee. You get a named guarantee or insurance certificate for the exact amount you are paying.
• A real institution. The bank or insurer behind the guarantee is a proper, solvent Spanish entity.
• Milestones. Your payments are tied to genuine construction stages, not just calendar dates.
• Pre-permit clarity. If any payment is due before the building permit, you understand precisely how it is protected.

Get all of this in writing, and never pay a stage without it.

If you are an agent or a developer

The same ruling is a clear message to professionals: buyers are protected regardless of their profile, and courts will not accept formal arguments built to avoid that protection. Agents and developers who verify these safeguards up front, the special account, the individual guarantees, the link to construction milestones, remove the buyer’s biggest fear and close on trust rather than on hope.

This guide is general educational information, based on a Spanish Supreme Court ruling, and is not legal advice. Every purchase is different. Always take advice from your own independent lawyer before you buy or pay.

We work new-build, off-plan and resale, and we check every guarantee and licence along the way. Browse new-build · Browse all properties · About us.