How to File Your Tax Return in Spain (Renta 2026)

The Declaración de la Renta (officially, Personal Income Tax or IRPF) is the most important tax obligation for workers in Spain. Every year, between April and June, millions of taxpayers file their returns with the Agencia Tributaria (Tax Agency).

Who must file in 2026? - Workers with employment income above 22,000 EUR per year (from a single employer) - Workers with income above 15,876 EUR if they have more than one employer (and the second employer exceeds 1,500 EUR) - Individuals with investment income above 1,600 EUR - Individuals with capital gains above 1,600 EUR

Even if you're not required to file, it may be worthwhile if too much tax was withheld during the year. In that case, the tax agency will refund the difference.

Spain's IRPF tax rate is progressive, with brackets ranging from 19% to 47% (state + regional rate). To see exactly how much tax you pay on your salary, use our Spain salary calculator.

The Tax Agency provides each taxpayer with a borrador (draft return) based on data it already has: withholdings, income reported by employers, banking data, etc.

How to access the draft: - Renta WEB: Through the Tax Agency's website (electronic headquarters) - Agencia Tributaria App: Available for iOS and Android - Cl@ve PIN, digital certificate, or DNIe: Required identification methods

Important: The draft is NOT always correct. The Tax Agency doesn't have information about: - Regional deductions you may be entitled to - Union dues or professional association fees - Primary residence rental (in regions with deductions) - Charitable donations - Pension plan contributions

Key tip: Always review the draft before confirming it. A common mistake is accepting it directly without verifying that it includes all deductions you're entitled to. This can cost you hundreds of euros.

Key dates for the 2025 tax campaign (declared in 2026):

• April 2, 2026: Campaign begins. Returns can be filed online (Renta WEB)
• May 6, 2026: Phone assistance begins (request appointment from April 29)
• June 2, 2026: In-person office assistance begins (request appointment from May 27)
• June 25, 2026: Last day to file returns with direct debit payment
• June 30, 2026: Campaign ends, last day to file the return

If you're due a refund: The tax agency has 6 months to process refunds. Returns filed in the first weeks are typically refunded within 2-4 weeks.

Payment installments: If you owe tax, you can split the payment into two interest-free installments: 60% when filing and 40% on November 5.

Penalties: Filing late incurs a 1% surcharge plus an additional 1% for each month of delay. If you file before the tax agency requests it, the surcharge is lower.

Deductions are the key to reducing your tax bill. They fall into two categories:

National deductions: - Pension plan contributions: Maximum deductible: 1,500 EUR/year (or 8,500 EUR with employer contributions) - Charitable donations: To foundations and NGOs under Law 49/2002: 80% of the first 250 EUR, 40% of the rest (45% if recurring) - Primary residence investment: Only for purchases before 2013 (transitional regime) - Maternity deduction: 1,200 EUR deduction per child under 3 for working mothers

Regional deductions (vary by autonomous community): - Rental housing: Madrid, Catalonia, Andalusia, and other regions offer deductions - Education expenses: School uniforms, language classes, school supplies - Large families: Additional deductions per child - Energy efficiency: Home improvement works

Practical example: A worker in Madrid with a salary of 45,000 EUR gross who contributes 1,500 EUR to a pension plan, donates 300 EUR to an NGO, and pays 800 EUR/month in rent can reduce their tax bill by more than 1,000 EUR compared to filing without deductions.

Most common mistakes to avoid:

• Accepting the draft without reviewing it: The most common error. Always verify that all your deductions are included.
• Forgetting to declare savings income: Bank interest, dividends, capital gains from stock sales: everything must be declared.
• Not including spouse's data: In joint filing, make sure both sets of data are correct.
• Missing the maternity deduction: Many working mothers don't request the monthly advance payment of 100 EUR.

Tips to optimize your return:

• Individual or joint? Joint filing usually benefits couples where one spouse doesn't work or has low income. Use simulators to compare both options.
• Keep all receipts: Rental contracts, donation receipts, pension plan certificates, extraordinary medical expenses.
• Take advantage of December: Pension plan contributions and donations made before December 31 count for that year's return.
• Consider a tax advisor if you have complex situations (foreign income, cryptocurrency, inheritances, rental properties).

To calculate your monthly net salary and better plan your finances, use our Spain salary calculator.