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The extraordinary deadline for renouncing the option for electronic record keeping through the AEAT Electronic Office (SII) and for voluntary deregistration in the monthly refund register (REDEME) was extended until February 16, 2026.

Starting April 8thAll the help services are available to review your draft, modify it and, if necessary, submit your tax return. Tax Return 2025 Online through Renta WEB, Renta DIRECTA or through the APP.

In accordance with the criteria established by the Directorate General of Taxes, the effects in the tax field produced by Royal Decree-Law 16/2025, of December 23, which extends certain measures to address situations of social vulnerability, and adopts urgent measures in tax and Social Security matters, and Royal Decree-Law 2/2026, of February 3, which adopts urgent measures to address situations of social vulnerability, in tax matters and relating to the resources of the territorial financing systems, both not validated, are the following:

The Royal Decree 238/2026, of March 25, which develops the mandatory electronic invoicing system between businesses and professionals and modifies the Regulation governing invoicing obligations, approved by Royal Decree 1619/2012, of November 30, was published in the Official State Gazette (BOE) on March 31.

The Order HAC/277/2026, of March 25, approving the declaration forms for Personal Income Tax and Wealth Tax, year 2025, was published in the Official State Gazette (BOE) on March 27.

Information provided in the taxpayer calendar regarding declarations and self-assessments whose filing deadline ends in April 2026.

Royal Decree-Law 7/2026, of March 20, (Official State Gazette, March 21), which approves the Comprehensive Response Plan to the Crisis in the Middle East, approves a series of tax measures, among which the following can be mentioned:

For the purposes of the provisions of Article 206.bis of Law 58/2003, of December 17, General Tax Law and in accordance with the provisions of Article 194.6 of the General Regulation of the actions and procedures of tax management and inspection and development of the common rules of the procedures for the application of taxes, approved by Royal Decree 1065/2007, of July 27, a copy of the report of the Advisory Commission on conflict in the application of the rule relating to the taxpayer, natural person "NATURAL PERSON 1" is published.

Your tax data and more content for the 2025 Income Tax campaign are now available, so you can get a head start on your 2025 Income Tax return, which you can submit from April 8th.

The form to apply for direct aid, included in Royal Decree-Law 5/2026, of February 17, for professionals and companies that suffered damage from the storms at the beginning of this year, which particularly affected towns in Andalusia and Extremadura, is now available on the Tax Agency's electronic headquarters.

The deadline for applying for the aid is June 30, 2026.