The Spanish Tax Agency has now approved the forms that companies must use to file Corporate Income Tax for the 2025 tax year. The order also affects certain Non-Resident Income Tax (IRNR) taxpayers, especially when they operate in Spain through a permanent establishment or have a presence in Spanish territory.
Order HAC/529/2026, published in the Spanish Official State Gazette (BOE) on 29 May 2026, approves Forms 200, 206 and 220, as well as their payment or refund documents. The regulation will apply to tax periods beginning between 1 January and 31 December 2025 and will enter into force on 1 July 2026.
With this publication, the formal framework for the 2025 Corporate Income Tax campaign begins. This obligation affects companies, tax groups and certain Non-Resident Income Tax taxpayers with a permanent establishment or presence in Spanish territory.
In this alert, we review which forms have been approved, which updates may affect the tax calculation and what should be reviewed before filing the return.
Which forms have been approved: 200, 206 and 220
The order approves, among others, the following forms:
- Form 200, which must generally be filed by companies subject to Corporate Income Tax and by certain Non-Resident Income Tax taxpayers operating in Spain through a permanent establishment or with a presence in Spanish territory.
- Form 206, as the payment or refund document for Non-Resident Income Tax for permanent establishments and entities under the income attribution regime.
- Form 220, applicable to tax groups taxed under the tax consolidation regime.
In accordance with the conditions established by the Spanish Tax Agency, these forms must be filed electronically.
Main updates to Corporate Income Tax 2025 and the new tax forms
With the entry into force of these new forms, several adjustments are incorporated because of the regulatory changes affecting the 2025 tax year.
The most relevant updates include:
- Adaptation to the new CNAE-2025. Companies must check that the economic activity code declared before the Spanish Tax Agency correctly reflects their current activity, especially if they have changed, expanded or diversified their business.
- Update to the capitalisation reserve. This incentive allows the tax base to be reduced when the company increases and maintains its equity. For 2025, the general reduction increases from 15% to 20%, with specific limits.
- Incorporation of new tax rates for micro-companies, small-sized companies and cooperatives. These changes do not affect all companies in the same way. Therefore, each company should review which category it falls into before calculating its tax liability.
- For micro-companies, with net turnover below €1 million, the applicable rate will be 21% for the first €50,000 of the tax base and 22% for the remaining amount.
- Small-sized companies, with turnover below €10 million, will be taxed at 24%, compared with the general rate of 25%.
- Tax-protected cooperatives will also see their rate reduced, from 20% to 19%. However, its application should be reviewed case by case, especially where there are non-cooperative results.
- Update of the minimum net tax liability to adapt it to the new tax rates.
- Inclusion of a new box to identify the amounts corresponding to the tax on the interest and commission margin of certain financial institutions, which are not considered tax-deductible expenses.
- Improvements to electronic filing, validations and corrective self-assessments, which may affect how errors are corrected or how certain data in the form are completed.
In addition, supplementary forms are maintained for certain cases, such as corrections and deductions exceeding €50,000, Social Security contribution rebates, the Reserve for Investments in the Canary Islands and the Reserve for Investments in the Balearic Islands.
Filing and direct debit deadlines
For companies whose tax year coincides with the calendar year, Form 200 must be filed in July. Specifically, the ordinary deadline will end on 27 July 2026, as the due date is moved because the 25th falls on a Saturday.
For entities with a tax year that does not coincide with the calendar year, the deadline will be the 25 calendar days following the six months after the end of the tax period.
If the tax debt corresponding to Forms 200 and 220 is paid by direct debit, this may be arranged from 1 to 22 July 2026, both inclusive.
Form 206, in general terms, maintains the same filing deadlines provided for the taxpayers to whom it applies.
What companies should review before filing Forms 200, 206 and 220
The approval of the forms does not only mean that a filing form is now available. It also marks the time to review whether the 2025 changes affect the calculation of each company’s tax.
Companies should review whether the updates affect their tax return, especially in relation to:
- Declared economic activity and adaptation to CNAE-2025.
- Application of the capitalisation reserve.
- Applicable tax rate.
- Minimum net tax liability.
- Adjustments to the accounting result.
- Tax deductions and incentives.
- Group transactions, Economic Interest Groupings (AIEs) or Temporary Business Associations (UTEs).
- Additional obligations linked to the applicable tax regime.
In the case of international companies or non-resident entities with a permanent establishment in Spain, it will also be necessary to review the appropriate form and the associated tax documentation.
A campaign that requires prior review
The 2025 Corporate Income Tax campaign arrives with relevant changes that may affect both the completion of the form and the final tax calculation.
For this reason, it is advisable to anticipate the accounting and tax review before the filing period begins.
From LEIALTA’s accounting and tax department, we support Spanish and international companies in the preparation and filing of Corporate Income Tax and Non-Resident Income Tax returns, reviewing the correct application of the updates and the documentation required to approach the campaign with confidence.
