Royal Decree 253/2025 is a Spanish regulation that amends national tax management rules to mandate detailed monthly reporting by financial institutions on transactions over €3,000.

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What Royal Decree 253/2025 actually does: Amends Articles 37, 38 and 38 bis of Spain’s General Tax Management Regulations (Real Decreto 1065/2007) and adds a new Article 38 ter.

Requires banks, e-money institutions and card issuers to file: Monthly reports of cash deposits, withdrawals, loans and account balances over €3,000.