Spain's Modelo 720: The Foreign Asset Declaration Every Resident Must Know
Spain requires its tax residents to tell the tax authority about assets they hold abroad — bank accounts, investments, and real estate — through an annual informative form called Modelo 720. It is not a tax return: no payment accompanies it. But the filing obligation is strict, the thresholds are easy to misunderstand, and the penalty regime behind it was once so severe that the EU's top court struck it down. Here is how the declaration works in 2026, who must file, and what changed after the court ruling.
What Modelo 720 is
Modelo 720 is an informative declaration filed electronically with Spain's tax agency, the Agencia Tributaria (AEAT). Its purpose is transparency: Spain wants a full picture of its residents' worldwide assets to combat tax fraud. You do not pay any tax when you file it — the form simply reports what you own abroad as of 31 December of the reference year.
The declaration covers three separate blocks of assets:
- Block 1 — Accounts: bank accounts held abroad (current, savings, deposits).
- Block 2 — Securities and investments: shares, bonds, investment funds, and life or disability insurance policies held abroad.
- Block 3 — Real estate: real property and rights over real property located abroad.
Who must file
The obligation applies to Spanish tax residents — individuals and legal entities — who hold qualifying foreign assets. You become a Spanish tax resident generally by spending more than 183 days in Spain in a calendar year or by having your centre of economic interests there.
The key subtlety: the €50,000 threshold applies separately to each block, not to your total foreign wealth. If you have €40,000 in foreign bank accounts (Block 1) and €40,000 in foreign shares (Block 2), you file nothing — neither block crosses €50,000 on its own. But €55,000 in foreign bank accounts alone triggers a filing, and once a block is triggered, every asset in that block must be reported, not just the amount above the threshold.
For bank accounts, the value is assessed on the average balance of the last quarter or the 31 December balance, whichever is higher.
Once you have filed for a block, you do not need to file again every year automatically: a new declaration for that block is due only if its aggregate value has increased by more than €20,000 compared with the last declaration, or if you disposed of something previously declared.
Deadlines and how to file
Modelo 720 is filed between 1 January and 31 March for assets held as of the previous 31 December. The declaration for 2025 assets, for example, closes on 31 March 2026. There is no automatic extension.
Filing is electronic through the AEAT's online portal (sede electrónica), using a digital certificate, Cl@ve, or DNIe. Non-residents of Spain do not file — this is strictly a resident obligation.
The penalty saga: what the EU court changed
The original penalty regime was draconian: €5,000 per omitted or incorrect data item with a €10,000 minimum per block, plus a 150% proportional fine on the value of undeclared assets, and — most strikingly — no statute of limitations, meaning undeclared assets could be treated as unjustified capital gains indefinitely.
On 27 January 2022, the Court of Justice of the European Union ruled in Case C-788/19 (Commission v Spain) that three features of this regime breached the EU free movement of capital: the unlimited limitation period, the 150% fine, and the flat-rate fines, which were disproportionate compared with penalties for purely domestic infringements.
Spain reformed the regime through Ley 5/2022, and the declaration is now sanctioned under the general tax penalty framework (articles 198 and 199 of the Ley General Tributaria), applied independently to each of the three blocks:
- €20 per omitted or incorrect data item, with a €300 minimum and €20,000 maximum per block.
- Penalties are halved if you file late voluntarily, before the AEAT contacts you.
- The ordinary four-year statute of limitations now applies.
The reporting obligation itself was never challenged and remains fully in force.
Common expat traps
- Thinking small balances are safe. It is the aggregate per block that counts — several modest accounts can push Block 1 over €50,000.
- Forgetting insurance. Foreign life insurance policies sit in Block 2 and are the most commonly overlooked item.
- Assuming the old horror stories still apply. The catastrophic fines are gone, but proportionate penalties and reassessment risk remain.
- Missing the re-filing trigger. After your first declaration, track each block's growth — a €20,000+ increase restarts the obligation.
Frequently asked questions
Do I pay tax when I file Modelo 720?
No. It is purely informative. But the information can prompt the AEAT to check whether the income those assets generate has been correctly declared on your income tax return.
I am a non-resident with a holiday home in Spain. Do I file?
No. Modelo 720 covers assets abroad held by Spanish residents. Non-residents do not file it.
What if my foreign accounts total €49,000?
No filing is due for that block. The threshold is a hard €50,000 per block, assessed separately.
Can the AEAT really know about my foreign accounts?
Assume yes. Spain exchanges financial account information automatically with over 100 jurisdictions under the Common Reporting Standard (CRS).
What happens if I never filed and want to regularize?
Voluntary late filing before any AEAT contact halves the penalties and avoids the harsher post-notice regime. The four-year limitation now applies. Get professional advice on your specific position.
Sources
- Agencia Tributaria, Modelo 720 — frequently asked questions on sanctions and effects: https://sede.agenciatributaria.gob.es/Sede/en_gb/todas-gestiones/impuestos-tasas/declaraciones-informativas/modelo-720-decla_____sobre-bienes-derechos-extranjero_/preguntas-frecuentes/sanciones-efectos.html
- Radar Fiscal, Modelo 720: Foreign assets declaration: https://radarfiscal.es/en/guias/modelo-720/
- Fintech Passport, Modelo 720 — Spain's foreign asset declaration: https://fintechpassport.eu/modelo-720-spain-foreign-assets-declaration/
- Expats Finance, Modelo 720 in 2026: deadline, thresholds and penalties explained: https://expatfinance.info/en/modelo-720-2026-walkthrough
This article is general information about Spanish tax reporting obligations, not tax advice. Thresholds and penalties can change — confirm the current rules on the AEAT website or with a qualified asesor fiscal before filing.