Guide

Modelo 179: the tax filing that lets the tax authority cross-check you against Airbnb and Booking

Modelo 179 is filed by the platforms, not by you — but the tax authority cross-checks that data against your declared income. Here's what that means in practice.

Last updated: 6 Jul 2026

What Modelo 179 is

Modelo 179 is an informational return on the transfer of housing for tourist purposes. It's filed by intermediaries and platforms (Airbnb, Booking, and similar) — not directly by the host. Through it, the platform reports to the Spanish Tax Agency the details of the properties it has intermediated and the associated income.

Find out in 7 questions whether your rental is compliant or what it's missing. You'll get a clear diagnosis and the solutions to get in order:

CompliantIncompleteHigh risk

Check it HERE in 2 minutesFree · Only 7 questions

No account needed · No private data

Why it affects you even though you don't file it

Here's the key point: the tax authority cross-checks that data against your own income tax return. If the platform reports that you received certain income from your property and you don't declare it (or declare a different figure), that discrepancy is easy to detect automatically. In practice, this means declaring your income stops being optional — not because the law recently changed, but because the data cross-check makes not declaring a much higher risk than it was before this mechanism existed.

What this means for you as a host

You don't file Modelo 179 — that's the platform's responsibility.
You do need to declare the income from your short-term rental activity in your income tax return (or wherever applicable given your tax situation: individual, self-employed, company).
If you have an accountant, explicitly confirm they're aware of this income — don't assume "they already know" if you haven't told them.

What to do if you're not sure about your situation

If your situation with your income declaration (Modelo 179) isn't clear, it's better to raise it proactively than to find out through a notice. Check it HERE in 2 minutes: free, you'll only answer 8 questions and we'll tell you where you stand on this point and on the rest of your compliance. (No account needed, no private data).

See solutions directory →

Frequently asked questions

Do I have to file Modelo 179 myself?+

No. It's filed by intermediaries and platforms (Airbnb, Booking, and similar), not directly by the host. What you do need to do is declare your income from that rental in your own tax return.

What happens if I don't declare my short-term rental income?+

The tax authority cross-checks the data reported by the platform against your income tax return. Income the platform reports that you don't declare is a discrepancy that's easy to detect, and it can lead to a request for information or a penalty.

Does my accountant handle this automatically?+

If you have an accountant (gestoría), usually yes — but it's worth confirming explicitly rather than assuming, especially if you've only recently started renting.