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TaxDown is a Madrid-based AI-powered tax filing platform that combines a proprietary AI engine with a team of 150+ human tax specialists to help Spanish taxpayers maximize refunds and minimize errors on their income tax returns. Users connect securely with Spain's tax authority (Hacienda), answer guided questions in minutes, and have their declaration reviewed and submitted by experts. The platform has served over 500,000 users and helped businesses and individuals across Spain identify deducciones they would otherwise miss.
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