Spain Income Tax Campaign 2026: file correctly, pay only what you owe

Spain income tax calendar 2026: all key dates

The 2025-2026 income tax campaign (declaración de la Renta) — covering income earned during the 2025 tax year — follows the standard calendar set by the AEAT, with some important features for this year.

Direct debit: note the 25 June deadline

If your return shows a tax liability and you want to settle by direct debit, you must submit it by 25 June — five days before the campaign closes. If you submit after that date, you must pay at the time of submission or at a collaborating financial institution. The direct-debit charge processes on 30 June.

You may also split the payment into two instalments: the first (60% of the total) by direct debit on 30 June, and the second (remaining 40%) paid in on 5 November 2026, with no interest or surcharges.

IRPF changes in 2026: what is different from the previous year

The 2026 income tax return incorporates regulatory changes affecting different taxpayer profiles. A summary of the most significant:

Upper band of the general tax base: combined marginal rate up to 47%. The combined marginal rate (national plus regional) for income above 300,000 euros exceeds 45% and reaches approximately 47% in many autonomous communities; the national schedule contributes 24.5% and each region sets its own supplement. Some autonomous communities have additional rates that push the effective marginal rate above 54% in certain territories.

Savings rates unchanged. Capital income and capital gains retain the same scale: 19% up to 6,000 euros, 21% from 6,000 to 50,000 euros, 23% from 50,000 to 200,000 euros, 27% from 200,000 to 300,000 euros and 28% above 300,000 euros.

DAC8 and mandatory crypto asset disclosure. The European Directive DAC8 mandates automatic exchange of information on crypto asset transactions between European tax authorities. This means the AEAT will receive data from European exchanges on your transactions, significantly increasing the audit risk if you have not reported them correctly.

Expanded energy efficiency deductions. Deductions for energy efficiency improvements to a main residence remain in place with some extensions: 20% for reducing heating and cooling demand, 40% for reducing non-renewable primary energy consumption, and 60% for energy rehabilitation in predominantly residential buildings.

Pension contributions: deduction limit. The limit on taxable base reductions for contributions to individual pension plans remains at the lower of 1,500 euros or 30% of net employment and business income. Employer contributions may increase this limit by a further 8,500 euros.

SOCIMI dividend treatment. Dividends from SOCIMIs (Spanish real estate investment trusts) are taxed at the general savings rate, without the 50% partial exemption that was eliminated in prior years.

IRPF 2026 tax brackets: general base and savings base

National schedule for the general tax base (employment and business income)

The final rate is the sum of the national bracket and the regional bracket. Each autonomous community sets its own rates for the regional supplement, so the effective marginal rate varies across territories.

Savings schedule (capital income and capital gains)

The savings rate is uniform across common territory (except the Basque Country and Navarre, which have their own foral regimes).

15 deductions the AEAT draft return does not apply automatically

The AEAT draft incorporates data it holds — payroll withholdings, bank data, cadastral data — but cannot apply all the deductions you are entitled to, because many depend on personal circumstances it does not know or on supporting documents it does not have. These are the most common:

1. Maternity deduction. Up to 1,200 euros per year for each child under three years old for working mothers, extendable by 1,000 euros if a registered nursery is paid. The AEAT applies this partially but it may be incomplete if your employment status changed during the year.

2. Deduction for contributions to a spouse’s pension plan. If your spouse has income below 8,000 euros, you may reduce your taxable base by up to 1,000 additional euros for contributions made to their pension plan.

3. Energy efficiency deductions for the main residence. Energy improvement works require an energy performance certificate both before and after the works. The AEAT does not have this data unless you have previously reported it.

4. Deduction for investment in new companies (startups). 50% of the investment in startups covered by the Startup Act, with a maximum base of 100,000 euros per year. This is the most powerful national deduction for investors and the AEAT does not include it in the draft.

5. Deductions for charitable donations. 80% of the first 150 euros donated to organisations declared of public utility, and 35% or 40% of the remainder depending on whether the donation is recurring. You must retain the certificate from the recipient organisation.

6. Deduction for rental of main residence (transitional regime). For contracts signed before 1 January 2015, if you meet the income requirements. The AEAT does not always hold the contract date.

7. Regional deductions for renting a main residence. Most autonomous communities have their own deductions for residential tenants, with different requirements and percentages. None is added to the draft automatically.

8. Deduction for birth or adoption in the autonomous community. Many regions offer between 100 and 600 euros for birth or adoption; some differentiate by number of children or income level.

9. Deduction for care of ascendants. Several autonomous communities allow deduction of costs for caring for parents or grandparents in a dependency situation, subject to cohabitation or dependency grade requirements.

10. Reduction for contributions to professional mutual societies (mutualidades de previsión social). Certain groups — self-employed workers, registered doctors and lawyers — have access to professional mutual funds that generate taxable base reductions similar to pension contributions.

11. Offsetting capital losses carried forward from prior years. If you had losses on equities or crypto assets in the last four years, you can offset them against gains in the current year. The draft does not automatically apply offsets from prior years.

12. Deduction for acquisition of shares or stakes in social economy entities. Co-operatives, employee-owned companies and inclusion entities generate their own deductions in several autonomous communities.

13. Deductions for large family status or disability. The large family deduction (1,200 or 2,400 euros depending on category) and the deduction for a dependent relative with a disability (up to 1,200 euros) require checking that the draft applies them correctly if circumstances changed during the year.

14. Deduction for income from Ceuta and Melilla. Taxpayers with income from these autonomous cities benefit from a 60% rebate on the corresponding gross liability.

15. Withholdings and payments on account not included in the draft. Benefits in kind, withholdings made by non-habitual payers (private landlords who manage withholding outside the standard system) or withholdings by foreign financial institutions that do not report to the AEAT may be missing from the draft.

Special situations: guidance by taxpayer profile

A tax return is not the same for everyone. Your obligations and optimisation opportunities differ depending on your situation.

Self-employed individuals and business income

Self-employed individuals must always file, regardless of income level. Their return includes net business profit (revenue minus deductible expenses), self-employment social security contributions (100% deductible) and potential application of the start-of-activity reduction or the irregular income reduction. A professional review can make a difference of hundreds of euros per year. See our comprehensive guide to IRPF 2026 changes for all updates affecting sole traders.

Crypto investors

Gains and losses from crypto asset transactions are taxed as capital gains in the savings base. Since 2023 there has also been a disclosure obligation under Modelo 721 for crypto assets held at overseas exchanges. With DAC8 fully in force, information on transactions at European exchanges reaches the AEAT directly. If you hold crypto assets and have not reported them correctly in previous years, 2026 is the time to regularise. We cover this in detail in our guide to crypto taxation, DAC8 and Modelo 721.

Beckham Law beneficiaries

The special impatriate régimen especial (special regime) known as the Ley Beckham (Beckham Law) has its own tax — the IRNR — and its own return form. Beneficiaries do not file the standard IRPF but Modelo 151, with a flat rate of 24% on the first 600,000 euros of income. The regime offers very significant advantages for high earners but requires precise management to preserve its benefits. See our full whitepaper on the Beckham Law or the dedicated page for Beckham Law in Marbella.

Non-residents with Spanish-source income

If you live outside Spain but own property, hold bank accounts, receive dividends from Spanish companies or have any Spanish-source income, you do not file the IRPF but the IRNR — Modelo 210. The rates differ (19% for EU residents, 24% for others) and the deadlines vary by income type. See our guide to Modelo 210 for non-residents for your specific obligations.

Expatriates and employees with overseas income

Spanish tax residents who worked abroad during the year have specific obligations: income earned overseas may qualify for the exemption under article 7.p) LIRPF (up to 60,100 euros), but only if the territorial requirements and the existence of an equivalent tax in the source country are met. Incorrect application of this exemption is one of the most common triggers for tax audits involving international profiles. Read our income tax guide for expatriates and foreign nationals for a complete view of this profile.

IRPF 2026 calculator: estimate your return before filing

Before engaging the service or confirming the draft, a preliminary estimate of your return can be useful. Our IRPF 2026 calculator lets you enter your main data — employment income, capital income, capital gains, applicable deductions and personal and family circumstances — and obtain an estimate of the amount due or the refund, broken down by general base and savings base.

The calculator is not a substitute for professional review, but it is an effective tool for anticipating the tax impact of decisions taken during the year or for comparing the result the AEAT calculates in the draft against your own estimate.

Common mistakes that cost money

Year after year, the same mistakes appear in income tax returns. Knowing them is the first step to avoiding them.

Confirming the draft without reviewing it. The AEAT draft may contain errors — outdated withholding data, unapplied regional deductions, omitted prior-year loss offsets — and confirming without review means accepting those errors. If you confirm an incorrect draft and overpay, you can request a rectification, but the process is slow and bureaucratic.

Not declaring capital income from overseas accounts. With the automatic exchange of information between authorities (CRS, DAC2, DAC8), the AEAT has access to data on overseas accounts and assets. Omitting this income is increasingly likely to be detected and penalised.

Not applying capital loss offsets carried forward from prior years. Capital losses from the last four tax years may be offset against gains in the current year. If you had equity, crypto or investment fund losses in previous years, failing to apply the offset can mean paying tax on 100% of current gains when the actual liability could be much lower.

Not reporting rental income correctly. Rental income from property must be declared as capital income from real estate. Many taxpayers omit income from short-term rental platforms (Airbnb, Booking) because they believe the platform already withholds tax or because they think the AEAT does not have the data. Platforms are required to report and the AEAT cross-references this data.

Incorrectly applying main residence status. If you own your main residence, you do not impute a deemed rent for it. But if you own other properties that are not rented out, you must impute 1.1% or 2% of the cadastral value as deemed rental income. Confusing which properties to include — or omitting vacant ones — is a common error that generates subsequent assessments.

Not applying the 60% net rental income reduction. Residential lettings allow a 60% reduction on net rental income (rent received minus deductible expenses). However, this reduction can only be applied in the voluntary return, not in an assessment raised by the AEAT following an audit. If you do not file and the AEAT assesses, you lose the reduction.

Not knowing your autonomous community’s deductions. Regional deductions can be substantial and vary significantly between territories. A taxpayer in Castilla y León, Comunidad de Madrid or Andalusia has access to deductions that do not exist in other regions, and vice versa.

Why a professional adviser makes a difference on the income tax return

For a simple return — one employer, no additional investments or property, no international income — confirming the draft may be reasonable if it is reviewed carefully. But once the situation becomes more complex, the difference between an optimised return and a standard one can be material.

Real savings on deductions. A taxpayer who is unaware of all applicable regional deductions, who has not offset capital losses from prior years or who has not optimised pension contributions may be paying between 500 and 3,000 euros more than legally required.

Correcting errors in the draft. The AEAT makes mistakes. Withholding data from merged or dissolved payers, duplicated capital income entries, deductions from prior years applied incorrectly. An adviser catches these errors before they produce an incorrect liability — whether overpayment or underpayment — that then requires a slow and bureaucratic rectification process.

Advance tax planning. Once a tax year has closed, the scope for optimisation is limited. The real savings come from planning during the year: adjusting the withholding rate on the payslip, choosing the timing of fund or share sales, making pension contributions before 31 December, or structuring flexible remuneration with the employer. At BMC we do not simply file the return — we review the current year and propose measures that reduce next year’s tax bill.

Liaison with the AEAT. If you receive a notice from the AEAT — a request for information, a draft provisional assessment, the opening of an audit — an adviser manages the response in time, with the correct technical arguments and documentation needed to defend your return. An incorrect or late response can make the situation worse.

BMC’s income tax return service includes a full review of the draft, identification of all applicable deductions, electronic filing and refund follow-up where applicable. For more complex situations — self-employed individuals, investors, expatriates, Beckham Law beneficiaries, taxpayers with overseas assets — we have a team specialised in each area.

If you would like to know how much we could save on your return this year, the first step is a review of your tax data. You can request it through the contact form or call us directly.