Key takeaways
- If you’re a Spanish tax resident (usually 183+ days or your economic centre is in Spain) you generally must file Modelo 100 (la renta) and declare worldwide income — that includes most foreign pensions.
- Get your NIE/NIF, a digital certificate or Cl@ve and collect pension statements and proof of foreign tax paid before you start. A gestor saves time in year one; for many retirees that’s the simplest route.
- Use Renta Web on the Agencia Tributaria website to file. The official campaign runs in spring (check agenciatributaria.es each year) but expect real-life delays on certificates, paperwork and refunds.
- If you hold more than €50,000 of assets abroad, consider Modelo 720 — penalties for late or wrong filings are severe. Also check the double-tax treaty for pension credits.
Short answer: Yes — if you are a Spanish tax resident you will normally file the annual personal income tax return (Modelo 100, “la renta”) and declare your worldwide income, including most pensions and investment income. Non-residents use different forms for Spanish-source income (commonly Modelo 210).
Who must file la renta as a retiree?
The first thing to check is tax residency. Spain treats you as a tax resident if you spend more than 183 days in the calendar year here, or if your centre of economic interests is in Spain (property, business or the place where your main income comes from). If you’re a resident, you declare worldwide income on Modelo 100.
If you are not a resident, you only declare Spanish-source income — rental income, capital gains on Spanish property, Spanish pensions in some cases — usually on Modelo 210 or other non-resident forms. The line between resident and non-resident can be fuzzy; if you keep a house and bank accounts abroad and split time between countries, read the tie-breaker rules in the double-tax treaty that applies to you. Our double-taxation treaty guide is a good next read: /en/finance-tax/double-taxation-treaty-us-spain.
Which forms and numbers you’ll need (checklist)
Below is a practical checklist. Don’t assume the tax office will accept verbal explanations — bring or upload the documents.
- NIE/NIF (your tax ID). If you live in Spain you already have a NIE; that’s the number you use on your return.
- Access to Agencia Tributaria: one of these — Cl@ve (recommended), a certificado digital (FNMT) or your Cl@ve PIN. You can also file by paper in person through a tax office, but online is faster.
- Pension statements: annual statements from each payer (state pensions, occupational pensions, private pensions). For the US that’s SSA statements/1099s; for Canada, T4s or pension slips — keep originals or PDFs.
- Proof of foreign tax paid (tax slips or receipts) if you expect a foreign tax credit.
- Spanish income documents: bank interest, dividends, rental income, capital gains, and any withholdings (certificados de retenciones).
- Property records if you sold or bought property in the year (escrituras, notary data) and the IBI bill for correct cadastral reference.
- Details of foreign assets if relevant: Modelo 720 may be required if foreign assets exceed €50,000 (bank accounts, securities, property). See our Modelo 720 guide: /en/finance-tax/modelo-720-spain-explained.
- Previous year’s tax return (useful for carry-forwards and tax credits).
How to prepare and file — step by step
Do this in order; it saves back-and-forth.
- Confirm residency (one sentence to yourself: were you 183+ days in Spain? Is your economic centre here?). If in doubt, consult a gestor — the wrong residency classification creates bigger bills later.
- Get your access sorted: apply for Cl@ve or a certificado digital. Cl@ve is the easiest for retirees — register online, confirm identity at a local tax office or by letter, and you’ll be able to use Renta Web. The Agencia Tributaria site (agenciatributaria.es) has the links and instructions.
- Collect your documents (the checklist above). If you receive foreign pensions, ask the payer for a year-end statement showing gross income and any foreign tax withheld — you’ll need that for foreign tax credit claims.
- Log into Renta Web on the Agencia Tributaria site when the campaign opens. The system often produces a draft declaration based on known data; review carefully. If you accept it, you can submit in minutes. If you modify it, the system recalculates.
- File. You’ll get a reference. If you’re due a refund the Agencia Tributaria will pay into a Spanish bank account — make sure your bank details are correct. If you don’t have a Spanish account yet, open one early or expect slower refunds.
One practical position: hire a gestor for your first year. The paperwork around foreign pensions, tax credits and Modelo 720 can be tricky; a competent gestor does the first return quickly and helps set up the file for subsequent years.
Common complications for foreign pensions and tax credits
Foreign pensions are the number-one headache for retirees. Two points matter: where the pension is taxed under the bilateral treaty and whether you can credit foreign tax against Spanish tax.
Most pensions are taxable in the country where you are tax resident (Spain), but treaties differ. For example, the US-Spain and UK-Spain treaties have specific rules for government pensions and social security payments. You must declare the pension in Spain even if some or all of it was taxed abroad; then claim a foreign tax credit for taxes already paid — you’ll need proof.
Important: pay attention to exchange rates. AEAT accepts official exchange rates when converting foreign income and tax paid into euros; keep records of the rates you used. If your foreign payer withheld tax at source and you don’t bring the withholding certificate, expect a delay or an initial assessment without the credit applied.
If you’re receiving US Social Security, Canadian pensions, or private occupational pensions, read our country-specific pages for the common scenarios: /en/finance-tax/double-taxation-treaty-us-spain and /en/finance-tax/canadian-pension-tax-spain.