ICONOS FINALES-TRAZADOS

GIPUZKOA: Income, Wealth, and Large Fortunes 2025

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Learn about the options for filing.

In Income , the filing options and important dates are as follows:

  • Acceptance or modification of the self-assessment proposal : The Tax Office will send self-assessment proposals by mail, and they can also be obtained on their website. If you receive the proposal, you must either accept it or modify it by phone or online between 7-4-2026 and 2-7-2026.
  • Mechanized : with a prior appointment reservation between 13-4-2026 and 8-6-2026 (or later date if slots are available), for the preparation and filing of the self-assessment in this mode, you will be assisted by Tax Office staff, and you can file it between 14-4-2026 and 2-7-2026.
  • Internet : finally, you will also be able to submit your declaration online through the Zergabidea platform between 7-4-2026 and 2-7-2026.

The full debt or the first installment payment will be debited from the direct debit account on 3-7-2026; the second installment of the installment plan on 10-11-2026.

Wealth and the Wealth Tax and the Temporary Solidarity Tax on Large Fortunes (TSTLF)

must be filed online between 7-4-2026 and 2-7-2026, and the direct debit account will be charged on 3-7-2026.
GIPUZKOA: Income, Wealth, and Large Fortunes 2025

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Data controller: OFILEGA, S.L., 52374499A
CALLE EL SOL 19 BAJO , LEGANES

The purpose of the processing of your data is to respond to your queries and/or requests for information, based on your consent given when you provide your data (article 6.1.a, GDPR).
You may exercise the following rights over your data,

  • The right of information, access, rectification, objection, erasure ("to be forgotten"), restriction of
    processing, portability, non-transferability, to the limitation of processing, portability, not to be subject to automated individual decisions.
  • Remember that exercising your rights is free of charge. You can also lodge a complaint with the
    supervisory authority.

You can access the legal notice and the complete information here

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