31 Mar 2026
9/10
Tax & Revenue
Effective: 25/03/2026
The mandatory electronic invoicing system between business owners and professionals in Spain is established. All companies and self-employed individuals must issue and receive invoices in digital format.
All business owners and professionals carrying out B2B transactions in Spain
27 Mar 2026
9/10
Tax & Revenue
Effective: 25/03/2026
The official forms and deadlines for filing the Income Tax and Wealth Tax returns for the 2025 tax year are approved. It also regulates how to obtain and confirm the draft return by electronic means.
Taxpayers required to file IRPF and/or Wealth Tax returns in 2025
29 May 2026
8/10
Tax & Revenue
Effective: 29/05/2026
Tax Authority approves official models for declaring Corporate Income Tax for fiscal year 2025, with changes in tax rates for microenterprises and new deductions.
Companies, permanent establishments and foreign entities with presence in Spain
21 May 2026
7/10
Tax & Revenue
Effective: 15/04/2026
Navarre approves urgent fiscal measures to mitigate the economic impact of the Middle East crisis. It affects Navarrese companies and self-employed workers with activity linked to the most affected sectors.
Companies, self-employed workers and taxpayers in Navarre affected by the Middle East crisis
04 Apr 2026
7/10
Tax & Revenue
A constitutional challenge has been filed against the part of RDL 15/2025 that modifies the invoicing software requirements for businesses. The Constitutional Court will decide whether that provision is valid.
Business owners, self-employed individuals and invoicing software providers subject to Verifactu obligations
27 Mar 2026
7/10
Tax & Revenue
Effective: 27/02/2026
An exceptional tax measure is approved in Spain. It may imply temporary changes in taxes or tax burdens for citizens and businesses.
Taxpayers, companies, self-employed individuals and citizens subject to the Spanish tax system
26 May 2026
6/10
Tax & Revenue
An official correction to the EU directive requiring large multinational groups to pay at least 15% in taxes is published. It affects companies with revenues exceeding 750 million euros.
Multinational groups and large domestic groups with revenues exceeding 750M€
25 Apr 2026
6/10
Tax & Revenue
Effective: 01/04/2026
Navarra updates its tax regulations by adapting VAT and the electricity production tax. The changes aim to harmonize regional tax legislation with state regulations.
Electricity production companies and VAT taxpayers in Navarra
24 Apr 2026
6/10
Tax & Revenue
The AEAT corrects errors in its tax inspection and customs control plan for 2026. It affects the guidelines that direct tax control actions this year.
Taxpayers, companies, self-employed workers and customs operators subject to tax control in Spain
23 Apr 2026
6/10
Tax & Revenue
Effective: 30/03/2026
The State and Navarra agree to coordinate the application of the 15% global minimum tax for large multinational and domestic groups. This tax ensures that these companies pay at least that percentage in any territory.
Multinational and domestic groups with income exceeding 750 million euros