The Tax Agency announces the opening of the filing period for the 2025 Corporate Income Tax (CIT) and the 2025 Non‑Resident Income Tax (NIT), covering permanent establishments and entities under the foreign income attribution regime that have a presence in Spain. This announcement coincides with the publication of a dedicated page that aggregates all relevant news, guidance, and supporting documents for the 2025 tax campaign. The page provides an overview of the procedural deadlines, highlights recent legislative changes affecting CIT and NIT, and offers downloadable forms and simulators for taxpayers. It also details the resources available through the Agency’s website, such as electronic filing instructions, FAQs, and contact points for assistance. The initiative aims to facilitate compliance for multinational groups and foreign investors, ensuring they are aware of the obligations and benefits associated with the 2025 tax obligations. By centralising information, the Agency seeks to reduce errors, improve transparency, and support taxpayers throughout the campaign, which runs until the statutory deadline.