This initiative aims to measure citizens' perception regarding the clarity and scope of information provided by administrations on new tax provisions. The goal is to determine if the Tax Agency and other bodies have adequately explained the changes and the requirements to access deductions.

Among the notable modifications are specific regional measures, such as new tax reductions implemented in the Comunitat Valenciana. The 2025 Income Tax campaign will allow telephone submissions starting May 6 and in-person submissions at Tax Agency offices from June 1.

The general deadline for filing the declaration will be June 30, 2026. However, for declarations with a payment due and direct debit, the deadline is set for June 25.