The 4 Best Apps for the Spanish Tax Return in 2026

Yes, if your case is simple: employment income, one home and little else. The Agencia Tributaria app lets you review the draft, change details and file it. With business activity, several properties, capital gains or cryptocurrency, the phone falls short and it is better to use Renta Web on a computer or go to an adviser.

It depends on your situation. Its value lies in spotting regional deductions that the draft does not apply on its own: for childbirth, rent, large families, donations or nursery costs, which vary a lot between regions. If your return is just a straightforward employment draft, the free official route is enough. If you have personal circumstances that entitle you to deductions, it usually pays off.

Cl@ve, a digital certificate or the reference number obtained from a specific box on the previous year's return. Cl@ve is the most practical route on a phone: you request it once — online with a certificate, by post or in person — and it then works with every public administration, not just the tax office.

The thresholds depend on the type and number of payers and change from one tax year to the next, and there are also specific situations that make filing compulsory even below them. It is worth checking the limits in force on the Agencia Tributaria website for each campaign or asking an adviser: filing when you are not required to sometimes pays off, if the result is a refund.