Spain Income Tax Return 2025: understand your IRPF and pay exactly what you owe

Spain Income Tax Return 2025: what it is, who must file, and why the borrador is not enough

The Declaración de la Renta 2025 (Spain’s annual income tax return) is the annual settlement of the Impuesto sobre la Renta de las Personas Físicas (IRPF, personal income tax) covering income earned during the 2025 calendar year. It is filed using Modelo 100 with the Spanish Tax Authority (AEAT) between 2 April and 30 June 2026.

The borrador that the AEAT makes available from the first day of the campaign is a proposed settlement compiled automatically from data held by the Tax Authority: employer withholdings, bank interest, gains on regulated markets, rental income declared by landlords. It is a useful starting point, but it has structural limitations: it does not apply regional deductions (deducciones autonómicas), it does not optimise the choice between joint and individual filing, and it does not detect errors in source data.

Confirming the borrador without professional review is the most widespread mistake and, in many cases, the most costly.

Spain Income Tax 2025 calendar: key dates

The direct debit deadline deserves special attention: if your return results in tax due and you wish to pay in instalments (60% in June, 40% in November via Modelo 102), you must file before 25 June and select the direct debit option. After that date, the full amount must be paid at the time of filing.

Who must file the Spain Income Tax Return 2025?

The filing obligation depends on the type and amount of income:

Employment income

• Single payer: required to file if employment income exceeds 22.000 euros gross per year.
• More than one payer: required to file if employment income exceeds 15.876 euros gross per year, provided income from the second and subsequent payers collectively exceeds 1.500 euros. (If the second payer barely exceeds this threshold, the withholding rate applied may be insufficient for the actual progressive scale, generating a liability with the Tax Authority.)

Other sources of income

• Capital income (dividends, interest) or capital gains exceeding 1.600 euros.
• Imputed rental income exceeding 1.000 euros (vacant or gratuitously used properties that the taxpayer must impute).
• Taxpayers who have received the Ingreso Mínimo Vital (minimum living income benefit), regardless of the amount.
• Self-employed individuals under direct or module assessment: always required to file, with no minimum threshold.

Falling below the thresholds does not mean that filing is unfavourable: where excess withholdings have been paid or deductions apply, filing may generate a refund in favour of the taxpayer.

How to view the borrador for the Renta 2025

The borrador is available from 2 April 2026 on the AEAT’s Renta Web portal. It can be accessed in three ways:

1. Cl@ve PIN — identification via mobile app or SMS, valid for most taxpayers.
2. Electronic certificate or DNIe — the most complete method, which also allows full management of the tax file.
3. Reference number — provided by the AEAT on entry of the NIF and the amount in box 505 (general taxable base) of the 2024 return.

Once inside, Renta Web displays the borrador with the AEAT’s prefilled data, allows modification, addition or removal of deductions, and simulation of the result before filing. The borrador is not final until the taxpayer confirms it. Confirming it is equivalent to filing Modelo 100 with that settlement.

IRPF tax brackets 2025: how your tax bill is calculated

The IRPF is a progressive tax: the higher the income, the higher the rate applied to the additional income bracket. It is important to understand that the marginal rate does not apply to all income, but only to the portion that falls within each bracket.

State scale for the general taxable base (Renta 2025)

Note: the regional (autonómica) scale is added to these state rates. The total effective rate varies according to the comunidad autónoma (autonomous region) of residence.

Indicative calculation example

For a general taxable base of 45.000 euros (single payer, no additional deductions beyond the personal minimum):

This calculation covers the state scale only. The regional tax is added with similar rates, bringing the total effective rate to approximately 30-35% for this income level, depending on the comunidad autónoma.

Savings base: tax on capital income and capital gains

Savings income (dividends, interest, capital gains from the sale of assets held for more than one year) is taxed on a separate, lower scale:

Key deductions for the Spain Income Tax Return 2025

Personal and family minimum

Every taxpayer is entitled to a personal minimum of 5.550 euros that reduces the taxable base. This amount increases with age (over 65 or 75 years) and is supplemented by dependent children, dependent ascendants and disability situations. The family minimum can make a substantial difference to the final tax bill, particularly for large families.

Pension plans and pension products

Contributions to individual pension plans reduce the taxable base up to a limit of 1.500 euros per year. This limit can be increased where the employer also contributes to the employee’s occupational pension plan: up to 8.500 euros of additional employer contributions, with a joint cap of 10.000 euros.

Deduction for primary residence (transitional regime)

Applicable only to mortgages formalised before 1 January 2013. The deduction is 15% of amounts paid (capital repaid, interest and costs of insurance linked to the loan), on a maximum base of 9.040 euros per year. Those who qualify and do not apply it are leaving up to 1.356 euros of deduction unclaimed each year.

Maternity deduction

Mothers with children under three years of age who carry out employed or self-employed activity: up to 1.200 euros per year per child. In some cases, the supplement for nursery custody expenses allows a further 1.000 euros to be added.

Regional deductions (deducciones autonómicas)

Each comunidad autónoma has its own catalogue of deductions. The most relevant include deductions for primary residence rental, educational expenses (books, extracurricular classes), birth and adoption, care of dependent elderly persons, investment in newly formed companies, and donations to regional foundations. The AEAT borrador does not automatically apply regional deductions: the taxpayer must know them and claim them.

IRPF changes affecting the Spain Income Tax Return 2025

The 47% bracket consolidated

The 47% rate for general taxable bases exceeding 300.000 euros, introduced in previous years, applies in full in the Renta 2025. It mainly affects highly paid executives, partners in large firms and professionals with exceptional income.

Crypto-asset obligations

The entry into force of the DAC8 framework strengthens the obligation to declare gains and income from crypto-assets in the IRPF savings base. Exchanges registered in the EU report their users’ transactions automatically to the relevant tax authorities. Anyone who traded in cryptocurrency in 2025 and has not declared it faces a significantly higher risk of investigation than in previous years.

Reduction for irregular income

Income with a generation period of more than two years, or income classified by regulation as obtained in a notoriously irregular manner, may benefit from a 30% reduction on the gross amount. Correct application of this reduction requires documentation of the generation period and review on a case-by-case basis.

Ley Beckham and the Spain Income Tax Return 2025: the Modelo 151 special regime

Workers who have relocated to Spain under the special inbound workers regime (commonly known as Ley Beckham) do not file Modelo 100 but Modelo 151. The implications are significant:

• Employment income earned in Spain is taxed at a flat rate of 24% up to 600.000 euros, and at 47% on the excess.
• The regime excludes taxation of income earned outside Spain (except employment income and capital gains on assets located in Spain).
• General IRPF deductions and regional deductions cannot be applied.
• Savings income (dividends, interest, capital gains) is taxed at the general savings scale rates.

If you are enrolled in the Ley Beckham regime or are considering applying for it in future years, we recommend reviewing our detailed guide on the Ley Beckham.

Penalties for late filing

Filing the income tax return after the 30 June 2026 deadline carries financial consequences that depend on whether the AEAT has previously notified the taxpayer:

Without prior notice (voluntary late filing)

Surcharges for voluntary late filing (presentación extemporánea espontánea) are:

• 1% additional per full month of delay, without interest, for the first 12 months.
• 15% surcharge plus default interest from the 13th month of delay onwards.

With prior notice from the AEAT

If the AEAT notifies the taxpayer before the voluntary filing, the infringement is classified as a tax offence and the minimum penalty is 50% of the unpaid tax (minor infringement), plus the corresponding default interest for the period of delay.

Why you should review the borrador before confirming it

The AEAT borrador is a useful tool for taxpayers with straightforward fiscal situations (single payer, no property, no investments, no foreign income). For any more complex profile, confirming it without review carries concrete risks:

1. Regional deductions not applied — the borrador does not incorporate them automatically.
2. Joint filing option not evaluated — in family units with significant income differences between spouses, joint filing may reduce the total tax bill.
3. Capital income with incorrect withholdings — particularly dividends from foreign shares with withholding at source, which may be deductible.
4. Capital losses pending offset — capital losses from previous years (up to four years) can be offset against gains in the current year.
5. Errors in imputed property income data — the rateable value used for the imputation of rental income may be out of date or reference an incorrect ownership percentage.

At BMC we review each return from the source data, not from the borrador. The objective is to ensure that the Renta 2025 result reflects the taxpayer’s actual fiscal position and that they do not pay a single euro more than the law requires.

Tax planning: beyond the Spain Income Tax Return 2025

The income tax return settles the IRPF for the closed year. But it is also the best opportunity to review the fiscal position for the current year and take decisions that reduce the 2026 tax bill:

• Adjusting withholdings with the payer to avoid overpaying throughout the year or facing a surprise the following June.
• Pension plan contributions — the base reduction is maximised when the contribution is spread throughout the year, not only in December.
• Timing of asset sales — where latent gains exist in funds or shares, the timing of the sale has a direct impact on the savings base rate for the year.
• Flexible remuneration — items such as meal vouchers, medical insurance or nursery costs included in the nómina (payslip) reduce the IRPF base without reducing net spending power.

If your situation includes foreign income, company shareholdings, self-employed activity or any special regime, we also recommend reviewing our resources on tax planning and consulting with our team before the end of the 2026 tax year.