Spanish Tax Return for Expats: Who Must File and When (2026)

Someone at work says the tax return is due by the end of June. Your bank mentions 'la renta'. You arrived in March, you have a foreign pension or a flat abroad, and nobody has told you whether any of it applies to you, or in which language you would even file. This guide explains the rules in plain English for people living in Barcelona. It is general information, not tax advice, and your own situation may differ.

Am I a tax resident in Spain?

You are a tax resident if any one of three tests is met. Article 9 of Spain's personal income tax law (Ley 35/2006, published in the BOE) says you are resident if you spend more than 183 days in Spain during the calendar year, or if the main base of your economic activities or interests is in Spain, directly or indirectly. It also presumes residence, unless you can prove otherwise, when your spouse (if not legally separated) and your dependent minor children habitually live in Spain.

Short absences count towards the 183 days unless you prove you are tax resident in another country, according to the same article. None of the three tests asks whether you hold a residence card, so your tax position can start before your paperwork is finished. Residents are taxed on income from all sources, which includes foreign pensions, rent from a property abroad and interest on foreign accounts.

If you arrived part-way through a year, how that year is treated depends on your day count and on any tax treaty with your home country, so ask an adviser before assuming. Special regimes also exist: our Beckham law guide covers the flat-rate option for some new arrivals, and our wealth tax guide covers the separate annual taxes on assets.

Do I have to file a return?

It depends on the type and amount of income. The Agencia Tributaria's manual for the 2025 return (the one filed in spring 2026) sets these main thresholds:

• Autónomos: if you were registered as self-employed at any point in 2025, you must file whatever you earned.
• Employment income and pensions: above €22,000 a year from a single payer.
• Several payers: the limit drops to €15,876, unless the second and later payers together paid no more than €1,500.
• A foreign pension or other income from a payer that does not withhold Spanish tax: the €15,876 limit applies, according to the same manual.
• Investment income and gains subject to withholding: above €1,600 combined.
• Imputed rental income, Treasury bills and some subsidies: above €1,000 combined.

Below the limits you are not obliged to file, but the Agencia Tributaria's manual says you can still file to claim a refund you are owed. Married couples can file jointly, and the same limits apply, with payers counted per spouse. Thresholds are set for each tax year, so check the current manual or ask your adviser before relying on these figures in a later year.

When is the deadline, and how do I file?

For income earned in 2025, the Agencia Tributaria's filing window ran from 8 April to 30 June 2026, and 25 June 2026 was the last day to choose direct debit. The dates for the 2026 income year had not been announced when this guide was written, so check the Agencia Tributaria's calendar in March. Plan for a spring filing, because the 2026 window ran April to June.

You can file online with a recognised electronic certificate, the Cl@ve Móvil app or a reference number. Phone and in-person filing need an appointment, and neither can be used when you owe money and do not choose direct debit. To get Cl@ve you need an NIE. The Agencia Tributaria says foreigners register in person (by appointment, by phone on 91 333 5 333 or through its website, with the NIE and a passport), or online by requesting an invitation letter that is posted to your tax address and stays valid for 60 days. Do this before the campaign opens, because the letter takes time to arrive. Our NIE guide explains how to get the number first.

What is Modelo 720, and does it apply to me?

Modelo 720 is not a tax. It is an information return that residents file to report assets held abroad, and the Agencia Tributaria splits it into three blocks: accounts in foreign financial institutions, securities, insurance and income abroad, and real estate abroad. The Agencia Tributaria's own FAQ tests each category against a €50,000 limit. For accounts, either the 31 December balance or the average balance in the last quarter can trigger it, and negative balances are netted against positive ones.

Once filed, you only file again when the value of a block rises by more than €20,000 compared with the figure that triggered the last return, the Agencia Tributaria says. The 2026 window ran from 1 January to 31 March 2026. Residents using the special regime in article 93 of the income tax law do not have to file, but the Agencia Tributaria notes that family members who are tax residents might.

Penalties for this form have been contested. In January 2022 the EU Court of Justice ruled against Spain's original penalty regime and its lack of a time limit, as reported by the Spanish law firm DiG Abogados, and the Ministry of Finance said it would change the rules. Penalty rules have been moving since, so get current advice before filing late or correcting an old return.

Do I still file a return in my home country?

Possibly, and it is separate from Spain. US citizens are the clearest case: the IRS says you are subject to tax on worldwide income wherever you live, and that benefits such as the foreign earned income exclusion and the foreign tax credit can only be claimed by filing a US return. Spain taxes residents on worldwide income too, so the two systems overlap and a treaty and credits decide who gets paid.

For UK income, HMRC's manual says a claim for relief under the UK and Spain treaty must be supported by the Spanish certificate called 'Residencia Fiscal en España Convenio', and that the general residence certificate should not be accepted. Which country can tax what depends on the treaty's tie-breaker rules, so a first-year cross-border situation is where a qualified adviser earns their fee.

Do I need a gestor or a tax adviser?

A single employee with Spanish salary only can often file with the Agencia Tributaria's draft. Get help if you have foreign income, rental income, a business, accounts or property abroad, or you arrived mid-year. Our gestor price guide shows typical costs, and the price page for gestors and accountants has sourced ranges. Ask for a fixed fee in writing before they start, and ask which of the home-country filings they will cover.

A short checklist before spring

• Count your days in Spain for the year and keep your travel records.
• Get your NIE and register for Cl@ve before the campaign opens.
• Collect year-end statements for every account and property abroad, and note the 31 December balance and the last-quarter average.
• Gather income statements from every payer, including foreign pensions.
• Ask your home-country tax authority what it needs from you, and request any residence certificates early.

Looking for a tax adviser who works in English? Browse by neighbourhood: All of Barcelona, or by area: Eixample, Poblenou, Sarrià-Sant Gervasi, Les Corts, Diagonal Mar & Vila Olímpica, Gràcia, El Born & Barri Gòtic and Sants.