Businesses and individuals: 3 months to update official exchange rates or deviation risks

The Bank of Spain's resolution publishes the euro exchange rates from 5 March 2026 set by the ECB, now officially effective under Article 36 of Law 46/1998. These rates replace previous ones and must be used in financial transactions, contracts, and tax declarations. The change impacts all users of foreign currencies in Spain, especially in international payments, invoicing, and tax calculations.