Modelo 100: Complete Guide
Everything you need to know about the Spanish annual income tax declaration.
What is Modelo 100?
Modelo 100 is the annual income tax return (IRPF - Impuesto sobre la Renta de las Personas Físicas) for Spanish tax residents. It's commonly called the Declaración de la Renta. You can file it online through Renta Web.
The form covers all income earned during the calendar year: employment, self-employment, rental, investments, capital gains, and more. Spain uses a progressive tax system with rates from 19% to 47% depending on income level.
Even if you're not required to file, doing so might benefit you if you're entitled to deductions or refunds.
Who Must File?
You generally must file if you're a Spanish tax resident and your employment income exceeds €22,000 from a single employer (or €15,000 from multiple employers). Lower thresholds apply for rental income, capital gains, and self-employment.
You're considered a tax resident if you spend more than 183 days per year in Spain, or if Spain is the center of your vital or economic interests.
Non-residents don't file Modelo 100 - they use Modelo 210 instead.
Common Deductions
Employment-related expenses: Up to €2,000 standard deduction for work expenses.
Mortgage interest: For homes purchased before 2013, you can deduct up to 15% of amounts paid (max €9,040/year).
Private pension contributions: Deduct contributions up to €1,500 per year.
Donations to charities: Deduct 80% of the first €150 donated, then 35% of the rest.
Regional deductions vary by autonomous community - check what's available in your region.
Filing Process
The tax office (Agencia Tributaria) prepares a draft declaration (borrador) based on information they have. You can accept it as-is or modify it.
Access your draft online with a digital certificate, Cl@ve PIN, or by confirming your identity with reference numbers from previous years.
Review carefully - the draft often misses deductions you're entitled to. Add any missing income or deductions before submitting.
Payment and Refunds
If you owe tax (a pagar), you can pay in full or split it 60/40 across two payments.
If you're owed a refund (a devolver), it typically arrives within 1-2 months of filing, deposited directly to your bank account.
Filing early in the campaign period usually means faster refunds.
Disclaimer
This guide is for informational purposes only and does not constitute legal, tax, or financial advice. Tax laws and regulations in Spain may change, and individual circumstances vary. We accept no liability for decisions made based on this information. Always consult with a qualified tax professional for advice specific to your situation.