This is the deadline for retired mutual members to collect their personal income tax refund.

Retired mutual fund members are fortunate enough to be able to recover a significant sum of money in the coming days thanks to the measure published in the Official State Gazette (BOE) on July 25, 2025. This is an automatic refund of up to 4,000 euros per year (between 2019 and 2022) for those who paid contributions to a mandatory worker-owned mutual fund before 1979 and who now receive a public pension.

The new refund mechanism represents a correction in the tax interpretation of personal income tax. The Supreme Court has ruled in favor of pensioners, arguing that for years, the Treasury failed to apply the 25% tax reduction to these pensions, resulting in these individuals paying more taxes than they should have .

The Ministry of Economy decided that the money would be repaid in several installments until 2028. However, a court ruling ruled that the proposal be withdrawn, as by then the oldest retirees would die before receiving their benefits.

The deadline to apply for up to 4,000 euros per year

The Tax Agency has set a deadline of December 30, 2025, to issue refunds for the period covering the 2019, 2020, 2021, and 2022 fiscal years. The measure, included in the Official State Gazette and approved by the Lower House, was included as an amendment to the Law on Civil Liability and Insurance in the Circulation of Motor Vehicles. This means that the process for paying the amount during the 2025 fiscal year is now unblocked.

To request this personal income tax refund, those affected must submit the application form available on the Tax Agency's website. To do so, go to the "Mutual Members: Refund Requests" section. Next, enter your Reference Number, Cl@ve, electronic certificate, or DNI-e, along with a bank account number and telephone number.

Once the form is submitted, the system automatically calculates the refund amount based on available pension data, historical contributions, and unapplied tax deductions. It's important to note that it's not necessary to submit a separate form for each fiscal year: the one already available for 2019 is sufficient.