Modelo 100 Spain: How to File Your IRPF Tax Return

Step-by-step guide to filing Modelo 100 via Renta Web. Covers deadlines, deductions, the borrador process, and transitioning from the Beckham Law.

Every tax resident of Spain must eventually face the Declaración de la Renta — the annual income tax return. Modelo 100 is the official form used to file your Personal Income Tax (Impuesto sobre la Renta de las Personas Físicas, or IRPF), and it is where you reconcile everything you earned, everything you were withheld, and every deduction you are entitled to claim. For expatriates, particularly those transitioning out of Spain's Beckham Law regime, understanding Modelo 100 is essential to avoid costly mistakes and potentially secure a refund.

This guide covers the 2025 tax year return (filed April–June 2026) and walks you through the entire process using the Agencia Tributaria's Renta Web platform.

Who Must File Modelo 100?

The obligation to file is governed by Article 96 of Ley 35/2006 (Ley del Impuesto sobre la Renta de las Personas Físicas). The general rule is straightforward: if you are a Spanish tax resident, you must file. However, there are specific exemption thresholds that excuse certain taxpayers from the obligation.

Exemption Thresholds

You are not required to file Modelo 100 if your income falls below the following thresholds:

• Employment income from a single payer: Up to EUR 22,000 gross per year
• Employment income from multiple payers: Up to EUR 22,000, provided the total received from the second and subsequent payers does not exceed EUR 1,500 per year
• Investment income and capital gains: Subject to withholding, up to EUR 1,600 per year
• Imputed real estate income, yields from treasury bills, and subsidies for subsidized housing: Up to EUR 1,000 combined per year

Who Must Always File?

Regardless of income level, you must file if:

• You are registered as self-employed (autónomo) at any point during the tax year under the Régimen Especial de Trabajadores Autónomos (RETA)
• You claim any tax deductions or allowances (such as the deduction for investment in your primary residence or contributions to a pension plan)
• You want a refund — even if you are exempt from filing, submitting a return is the only way to recover overpaid withholdings

Key Filing Dates for 2026

The Campaña de la Renta 2025 (the campaign to file 2025 income taxes) follows a well-defined calendar set each year by the Agencia Tributaria:

If your return results in an amount to pay and you choose split payment (fraccionamiento), 60% is debited on 30 June and the remaining 40% on 5 November. Requesting direct debit requires submitting your return by 25 June to allow banking processing time.

How to File Using Renta Web: Step by Step

The AEAT's Renta Web portal is the primary tool for filing Modelo 100. It pre-populates much of your data from employer reports, bank statements, and property registries, creating a draft (borrador) that you can review, modify, and submit.

Step 1: Access Renta Web

Navigate to the Sede Electrónica de la Agencia Tributaria and select "Campaña de Renta". You can authenticate using one of three methods:

• Certificado digital (digital certificate) — the most versatile option, issued by the FNMT
• Cl@ve PIN — a temporary code system linked to your NIE or DNI, set up through the Cl@ve portal. You will need your TIE card or NIE certificate to complete registration.
• Número de referencia (reference number) — obtained using your previous year's return amount (Box 505) and your NIE/DNI

For first-time filers who have never submitted a Spanish return before, the reference number method will not be available. In that case, register for a digital certificate or Cl@ve PIN well before April.

Step 2: Review the Borrador (Draft)

Once authenticated, Renta Web displays your borrador — a pre-filled draft return. The AEAT generates this from third-party data including:

• Your employer's withholding reports (Modelo 190)
• Bank-reported interest and dividends (Modelo 193)
• Property registry data (Catastro)
• Social Security contribution records

Critically review every field. The borrador frequently contains errors or omissions, particularly for expats. Common problems include:

• Foreign income not appearing (AEAT only has data from Spanish sources)
• Incorrect tax residency status (especially in the year of arrival)
• Missing deductions for pension plan contributions
• Incorrect mínimo personal y familiar (personal and family allowance) calculations

Step 3: Add or Modify Information

Click through each section of the return to verify and amend data. The key sections of Modelo 100 are:

• Rendimientos del trabajo (Employment income) — salary, bonuses, severance, benefits in kind
• Rendimientos del capital mobiliario (Investment income) — dividends, interest, insurance yields
• Rendimientos del capital inmobiliario (Real estate income) — rental income from properties
• Rendimientos de actividades económicas (Business income) — for autónomos and freelancers
• Ganancias y pérdidas patrimoniales (Capital gains and losses) — from sales of property, shares, crypto
• Imputaciones de renta (Imputed income) — including imputed income from non-rented secondary properties
• Deducciones (Deductions) — both state-level and regional

Step 4: Validate and Submit

Before submitting, click the "Validar declaración" button. Renta Web checks for errors (which must be corrected) and warnings (which you may override). Once validation passes, confirm your payment or refund method and submit electronically.

You will receive an immediate confirmation with a código seguro de verificación (CSV) — save this as your proof of filing.

Key Deductions and Allowances

Spain's IRPF system offers a range of deductions that can significantly reduce your tax bill. Many expats miss these because they are unfamiliar with Spanish tax law.

Standard Employment Deductions

• Reducción por rendimientos del trabajo: A standard reduction of EUR 2,000 for employment income, increased to EUR 5,565 for taxpayers earning under EUR 16,825 (on a sliding scale)
• Social Security contributions: Fully deductible
• Union and professional association fees: Deductible up to EUR 500 per year
• Legal defence costs related to employment: Up to EUR 300

Personal and Family Allowances (Mínimo Personal y Familiar)

These amounts are not deductions from income but rather set a zero-tax threshold within the progressive rate schedule:

• Mínimo del contribuyente (personal minimum): EUR 5,550 (EUR 6,700 if over 65; EUR 8,100 if over 75)
• Mínimo por descendientes (children): EUR 2,400 for the first child, EUR 2,700 second, EUR 4,000 third, EUR 4,500 fourth and beyond
• Mínimo por ascendientes (dependent parents): EUR 1,150 (EUR 2,550 if over 75)
• Disability allowances: Additional amounts for taxpayers or dependents with certified disabilities

Deductions Especially Relevant for Expats

• Deducción por doble imposición internacional (international double taxation relief): If you paid tax on any income in another country, you can deduct the lesser of the foreign tax paid or the Spanish tax attributable to that income. This is critical for expats with foreign rental income or investment income.
• Aportaciones a planes de pensiones (pension contributions): Deductible up to EUR 1,500 per year (reduced from EUR 8,000 prior to 2022)
• Deducción por maternidad (maternity deduction): EUR 1,200 per year for working mothers with children under 3
• Regional deductions: Each autonomous community offers its own set, from childcare subsidies to rental deductions. Check your region's specifics.

Regional Differences in Tax Rates

Spain's IRPF is split between a state component (estatal) and a regional component (autonómica), each roughly accounting for half of the total rate. While the state brackets are uniform across Spain, each autonomous community sets its own regional scale.

The "Typical Regional Rate" column reflects the default scale that applies if an autonomous community has not enacted its own. In practice, rates vary significantly:

• Madrid applies lower regional rates, resulting in combined top rates around 45.5%
• Catalonia and Valencia apply higher regional rates, with combined top rates reaching 48%–50% at certain income levels
• The Basque Country and Navarra operate entirely separate tax systems (régimen foral) with their own rates, brackets, and rules

The Borrador: Review Before You Confirm

The borrador (draft) system is both a convenience and a trap. The AEAT assembles your draft from data that Spanish employers, banks, and institutions have reported. For a Spanish national with a single job and a single bank account, the borrador is usually accurate. For an expat, it almost never is.

Why Expats Must Modify the Borrador

• Foreign income is not included: The AEAT has no data from foreign employers, foreign banks, or foreign brokers. If you earned dividends from a US brokerage, rental income from a property in Germany, or a freelance payment from a UK company, none of this appears in the borrador. You must add it manually.
• Foreign tax credits are not calculated: Even if foreign income were somehow included, the deducción por doble imposición internacional must be manually claimed with supporting documentation.
• Year-of-arrival issues: If you became a Spanish tax resident mid-year, the borrador may attribute a full year of Spanish income or apply incorrect withholding rates.
• Incorrect marital status or family situation: If your spouse resides abroad or you have dependent children registered in another country, the family allowances (mínimo familiar) may not be applied correctly.

Never simply confirm ("confirmar borrador") without a thorough line-by-line review.

Transitioning from Modelo 151 (Beckham Law) to Modelo 100

For expats exiting the Beckham Law regime — either because the six-year period has ended or by voluntary renunciation — the switch from Modelo 151 to Modelo 100 represents one of the most significant tax changes you will experience in Spain.

What Changes

Planning the Transition

The transition year is the first year in which you file Modelo 100 instead of Modelo 151. This is typically the seventh year of your tax residency in Spain. Key actions to take:

1. Declare worldwide income: All foreign-source income — dividends, rental income, interest, capital gains — must now be reported and taxed in Spain. Gather documentation from all foreign financial institutions.

2. Claim double taxation relief: Unlike under Beckham, you can now apply Spain's double taxation treaties and the deducción por doble imposición internacional. This may partially offset the increased tax burden on foreign income.

3. File Modelo 720: If your foreign assets (bank accounts, investments, real estate) exceed EUR 50,000 in any category, you must file this informational declaration by 31 March. Failure to file carries severe penalties.

4. Reassess wealth tax exposure: Your worldwide assets are now included in the wealth tax base. Depending on your autonomous community, this could represent a significant new liability.

5. Take advantage of new deductions: Under Modelo 100, you gain access to regional deductions, pension plan deductions, and other allowances that were not available under the Beckham Law.

Common Mistakes Expats Make on Modelo 100

Based on the most frequent errors flagged by the AEAT and Spanish tax advisors, here are the pitfalls expats should watch for:

• Omitting foreign income: The most common and most costly mistake. Spain taxes residents on worldwide income, and the AEAT increasingly receives data from other countries through automatic exchange agreements (CRS/AEOI). Failure to report foreign income can trigger penalties of 50%–150% of the unpaid tax.

• Misunderstanding tax residency in the year of arrival or departure: If you spent more than 183 days in Spain during a calendar year, you are a tax resident for the entire year. There is no concept of "split-year" treatment as in some other countries.

• Incorrectly applying the savings tax base: Capital gains from the sale of assets, dividends, and interest are taxed under the base del ahorro (savings base) at rates of 19%–28%, not at the general progressive rates. Mixing these up inflates your tax bill.

• Forgetting imputed real estate income: If you own a second property in Spain (or abroad, once on Modelo 100) that is not rented out, you must declare imputación de rentas inmobiliarias — typically 1.1% or 2% of the cadastral value.

• Missing the direct debit deadline: If you owe tax and wish to pay by direct debit, you must submit the return by 25 June, not 30 June. Missing this date means you must pay the full amount immediately on 30 June via alternative means.

• Not claiming foreign tax credits: Many expats pay tax on investment income or rental income in the source country but forget to claim the corresponding credit in Spain.

Frequently Asked Questions

I filed Modelo 151 under the Beckham Law last year. This is my first year on Modelo 100. Do I need to do anything differently?

Yes, significantly. You must now report your worldwide income, not just Spanish-sourced income. Gather all records of foreign bank accounts, investments, rental income, and any other income earned outside Spain. You should also file Modelo 720 by 31 March if your foreign assets exceed EUR 50,000 in any category, and review your wealth tax exposure. Consider hiring a tax advisor for this first transition year, as the complexity increases substantially.

Can I file Modelo 100 in English?

No. The Renta Web platform and Modelo 100 are available only in Spanish and the co-official languages of Spain's autonomous communities (Catalan, Basque, Galician, Valencian). However, the AEAT website has some informational pages in English. Consider using a gestor (tax advisor) or asesor fiscal if language is a barrier.

What happens if I file late or fail to file?

Late filing with tax owed incurs a surcharge (recargo) of 1% for each full month of delay up to 12 months, plus 1% additional. Beyond 12 months, the surcharge rises to 15% plus late-payment interest. If you file late but are due a refund, there is no financial penalty, but the AEAT may reduce your refund processing priority.

Can I file a joint return with my spouse?

Yes. Spanish tax law allows married couples to file a joint return (declaración conjunta), which applies a EUR 3,400 reduction to the joint taxable base. However, this is only beneficial if one spouse has little or no income. In most dual-income expat households, separate filing (declaración individual) produces a lower combined tax bill. Your spouse must also be a Spanish tax resident and hold a valid NIE.

I received income from cryptocurrency trading in 2025. How is it reported on Modelo 100?

Cryptocurrency gains from trading or disposal are classified as ganancias patrimoniales (capital gains) and taxed under the savings base at rates of 19% (up to EUR 6,000), 21% (EUR 6,001–50,000), 23% (EUR 50,001–200,000), 27% (EUR 200,001–300,000), and 28% (over EUR 300,000). Each transaction must be reported individually. If you hold cryptocurrency in foreign exchanges with balances exceeding EUR 50,000, this must also be declared on Modelo 720.

Official Resources

• Agencia Tributaria — Campaña de Renta
• Renta Web — Draft and Declaration Processing
• Ley 35/2006, del IRPF — Full text (BOE)
• AEAT — Filing a Return with Digital Certificate
• AEAT — Income and Assets Tax Campaign Dates
• Cl@ve — Digital Authentication System