The year 2025 marks an inflection point in Spain's tax digitalisation drive. Mandatory e-invoicing for business-to-business transactions, the full deployment of real-time VAT reporting systems and new digital economy taxation frameworks combine to make this a year of transformation for tax and finance departments. At the same time, global minimum tax measures continue to apply, and substantial corporate tax changes are now fully embedded.
Mandatory E-Invoicing: The Major Operational Change of 2025
Law 18/2022 (the Crea y Crece Act) and its implementing regulations make the issuance of structured electronic invoices compulsory for all B2B transactions conducted by companies and self-employed individuals subject to Spanish tax. The rollout is phased:
- Companies with turnover above €8 million: obligation in force since 2024; active enforcement and initial penalties begin in 2025.
- All other companies and self-employed: obligation expected for the second half of 2025, subject to possible regulatory extension.
E-invoices must comply with a structured format (FacturaE or other formats recognised by the AEAT) and be transmitted through a system interoperable with the State’s public platform. Companies must choose between processing issuance through an authorised trusted service provider (TSP) or implementing a compatible in-house solution. Non-compliance can result in penalties of up to €10,000 per invoice issued in an incorrect format.
Corporate Tax Changes for 2025
The general CIT rate remains at 25%, but differentiated minimums continue to apply. For 2025, the Tax Agency has signalled intensified scrutiny of the R&D&I deduction — one of the most powerful incentives in the Spanish system and one of the most heavily audited. The deduction ranges from 25% to 42% of qualifying research and development expenditure, with a monetisation option available where there is insufficient tax liability to absorb it.
Accumulated tax losses (BINs) built up by many companies during 2020-2021 continue to be offset subject to the 70% of pre-offset taxable income cap for groups with turnover between €20 million and €60 million (50% for groups above €60 million). This restriction extends the tax recovery timeline for companies carrying significant loss positions.
Intra-EU VAT: OSS, IOSS and New Rules for Digital Platforms
Since the 2021 reform, the One Stop Shop (OSS) system allows companies selling goods or providing digital services to final consumers in other EU member states to declare and pay the relevant VAT in a single member state (Spain, if that is where they are established). In 2025 the obligations of digital platforms acting as intermediaries in third-party goods sales are fully embedded: they are deemed “deemed suppliers” and must collect and remit VAT directly.
For marketplaces and e-commerce platforms with intra-EU operations, this means reviewing contractual arrangements with sellers, adapting billing flows and ensuring VAT is correctly collected and declared in each destination jurisdiction.
Personal Income Tax and Social Security Contributions
The main change in personal income tax (IRPF) for 2025 is an increase in the employment income reduction for low and middle earners, in line with the Government’s commitment to reducing the tax burden on workers with income below €22,000. The personal and family allowance is also updated by a percentage linked to the CPI.
On social security contributions, the maximum contribution base for higher-income workers continues to increase under Law 21/2021 on Maintaining Purchasing Power. Self-employed workers who opted in 2023 for the new real-income contribution system will complete in 2025 the regularisation of contributions paid in 2024, with possible refunds or supplementary payments depending on final declared income.
Fiscal Consolidation Regime: Updated Criteria
The AEAT has published new interpretive guidelines on the application of the fiscal consolidation regime in groups with complex matrix structures, particularly affecting the criteria for inclusion or exclusion of indirectly held entities and the treatment of intragroup transactions subject to transfer pricing rules. Groups that have not reviewed their consolidation perimeter in the past two years should carry out this review before the close of the 2025 fiscal year.
Key Tax Deadlines for 2025
Formal obligations follow their usual cadence: quarterly VAT (20 April, 20 July, 20 October and 30 January 2026), corporate tax (25 July for groups with a calendar fiscal year), withholding tax returns on IRPF (monthly for large companies, quarterly for others). The notable addition to the January calendar is the new crypto asset information models.
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