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
31 Mar 2026
9/10
Social Security
Effective: 01/01/2026
The contribution rules to Social Security for companies and workers in 2026 are established. It affects wages, bases and applicable rates throughout the year.
Companies, self-employed workers, employees and special groups with SS contributions
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
30 Jun 2026
8/10
Energy
Effective: 30/06/2026
The Government extends until September 2026 the energy tax reductions and aid to transport operators, farmers and fishermen approved due to the Middle East crisis, with gradual withdrawal as markets stabilize.
Households, transport operators, farmers, livestock breeders, fishermen and energy-consuming companies
30 Jun 2026
8/10
European Regulations
Effective: 25/06/2026
The EU modifies tariffs applicable to certain U.S. products and establishes tariff quotas to facilitate their importation. It seeks to balance trade relations with the U.S.
European importers and exporters operating with goods originating from the U.S.
26 Jun 2026
8/10
European Regulations
The EU strengthens control of investments from non-EU countries in strategic sectors. It replaces the previous 2019 regulation with stricter mechanisms.
European companies with foreign investors, non-EU investment funds and national control authorities
02 May 2026
8/10
Other Regulations
Effective: 01/04/2026
The Government approves extraordinary measures to address the economic impact of the conflict in the Middle East. The aim is to cushion the effects on Spanish companies and citizens.
Companies, self-employed workers and citizens affected by the economic crisis arising from the conflict in the Middle East
28 Mar 2026
8/10
Grants & Subsidies
Effective: 27/03/2026
Direct aid for farmers in Andalucía and Extremadura affected by adverse weather events is detailed. Requirements and conditions to access these urgent subsidies are specified.
Farmers and agricultural holdings in Andalucía and Extremadura affected by adverse weather events
01 Jul 2026
7/10
Corporate & Business
Effective: 01/07/2026
The late payment interest rate for commercial operations between companies is 10.40% during the second half of 2026. This percentage applies when a debtor fails to pay their supplier on time.
Companies, self-employed individuals and any party in commercial operations with payment deadlines
29 Jun 2026
7/10
Energy
Effective: 26/06/2026
The EU updates the parameters that determine how many free emission allowances industries receive for the 2026-2030 period. It affects energy-intensive industrial sectors subject to the European carbon market.
Industrial installations included in the EU ETS: steel, cement, refining, chemicals, paper and other energy-intensive sectors