Spanish property tax rules are evolving quickly, and 2026 brings several developments that non-resident property owners should be aware of.
New rules on tourist rentals, recent legal challenges, and a closing window on potential tax refunds: this year non-resident property owners could save – or reclaim – money.
All non-resident property owners in Spain are required to file the Modelo 210 tax return to declare imputed income (a notional tax applied even when the property is vacant or is used solely for personal purposes), rental income earned from letting out the property, and any capital gains upon sale. Whether it’s an apartment on the coast of Alicante or a rural finca in Galicia, the landscape around Spanish property tax for non-residents and the Modelo 210 tax return is shifting – and staying compliant has never mattered more.
IberianTax, Spain’s leading online platform for non-resident property tax filing, breaks down the four changes every non-resident should be aware of in 2026:
1. Holiday Rental Registration in Spain: The NRA Requirement
If you rent your Spanish property through platforms such as Airbnb, Booking.com or Vrbo, you must now obtain a Rental Registration Number (NRA – Número de Registro de Alquiler) through Spain’s national short-term rental register. Since July 2025, this registration is mandatory for properties advertised on online platforms.
Without this number, platforms may remove or block listings that do not comply with the regulation. In essence, this means: no NRA number, no online listing.
If you haven’t registered yet, IberianTax can help you obtain your NRA fully online, from anywhere in the world, for a one-time fee.
2. New in 2026: NRA Holders Must Now File an Annual Declaration
Here’s the update many rental owners haven’t heard about yet: simply holding your NRA is no longer enough.
Starting January 2026, all NRA holders are required to submit an annual rental activity declaration – an official report of their short-term rental activity for the previous year, which should include the number of guests per booking, dates of stay and reasons of stay. The filing window for 2026 was 1st February – 2nd March.
This requirement forms part of the regulatory framework introduced by Royal Decree 1312/2024, which created a national system to monitor short-term rental activity.
Miss the deadline, submit it incorrectly, or leave information incomplete, and the consequences are serious: your NRA can be revoked. Starting over from scratch is far more complicated and costly than getting it right the first time.
The key facts to know:
- Annual declaration required for all NRA holders, every year
- Deadline: February-March (for the previous year’s activity)
- Errors or late submissions risk NRA revocation
IberianTax can handle this declaration for you – accurately, on time, and fully online.
3. Non-EU/EEA Rental Owners: Spain May Owe You Money
This one is significant – and time-sensitive. For years, non-residents residing outside of the EU/EEA renting out their Spanish property have been taxed on their gross rental income at a 24% rate, with zero ability to deduct costs like maintenance, insurance, mortgage interest, or management fees. EU/EEA-based non-resident landlords, on the other hand, have always benefitted from these deductions.
A final Supreme Court ruling is expected in 2026 – and if it goes the way most tax experts anticipate, it could open the door to significant refunds for non-EU/EEA owners.
The problem? The four-year statute of limitations means those refund windows are closing on a rolling basis. Many owners are already filing preventive reclaim requests now, locking in their right to a refund before earlier tax years expire permanently.
Find out how much you could claim back with IberianTax’s free Rental Expenses Calculator, and let their team handle the preventive refund filing before your deadlines close definitively.
4. Imputed Income Tax in Spain: Discriminatory?
There’s a second case in the pipeline that every non-resident property owner should be aware of.
The European Commission has opened formal proceedings against Spain over Imputed Income Tax – the annual tax applied to non-resident property owners based on a presumed benefit calculated from 1.1-2% of the property’s cadastral value. This tax applies even if the property is not rented and is only used occasionally for personal purposes.
The Commission is examining whether this system could create unequal treatment between residents and non-residents. However, Spanish tax residents must also pay a similar imputed income tax on second homes or properties that are not their primary residence, which means it is still uncertain whether the current rules will ultimately be considered discriminatory under EU law.
A final ruling is expected in 2026 or 2027. If Spain is required to change its rules, non-resident owners who can demonstrate their property serves as a habitual residence may be entitled to the same tax treatment as residents. In the meantime, keeping your Modelo 210 filings up to date ensures you’re well-positioned to act when the moment arrives.
Simplifying Compliance: Where IberianTax Comes In
Non-resident property tax in Spain is constantly evolving – and in 2026, the pace shows no sign of slowing. Staying informed and acting quickly is essential.
Platforms such as IberianTax have emerged to simplify these obligations, allowing non-resident owners to prepare and submit their Modelo 210 tax returns fully online. In the case of IberianTax, users can file in their own language (EN, DE, FR and ES), with the support of tax experts when needed, and with clear guidance every step of the way.
Beyond filing, IberianTax monitors legal changes in real time through its blog, sends registered users email reminders so deadlines are never missed, offers free tax calculators, and manages automatic annual filing – covering everything a non-resident property owner needs to manage their Spanish property with confidence.
Learn more at www.iberiantax.com
IberianTax is an official collaborator of the Spanish Tax Agency (Agencia Tributaria) and a member of AEDAF. All tax filings are handled by qualified professionals.
This is a Spotlight Feature in collaboration with IberianTax.
