Spain’s Royal Decree 253/2025 shifts most of the filing workload from yearly to monthly reports, allowing the Spanish tax agency to monitor financial activity within a 30-day window instead of 12 months.

Quotes that support claims

Even without a pre-notice mandate, Spain’s reporting overhaul means the tax agency will receive granular, near-real-time data on every sizable cash movement.

Shifts most of the workload from yearly to monthly filings, tightening AEAT’s risk-analysis window from 12 months to roughly 30 days.