TaxDown Secures €4 Million Funding from Bonsai Partners

The funding will be used to grow its AI team and strengthen its proprietary tax processing engine, allowing for a more intuitive, paperless, and intelligent tax filing solution.

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Looking ahead, TaxDown plans to pioneer a fully automated, “formless” tax experience—where returns are generated daily and filed automatically—bringing taxation into a new era of simplicity and accessibility. As García puts it, “AI doesn’t replace experts, but it gives them superpowers.”

This latest round brings TaxDown’s total funding to over €9 million, following a €5 million raise last year led by 4Founders Capital. Other investors supporting the platform include Base10, JME Ventures, and public support from Enisa.

TaxDown’s CEO, Enrique García, emphasized the company’s efficient and scalable business model, stating, “Our model demonstrates that you can operate efficiently, scale with AI, and achieve profitability without having to raise hundreds of millions.”

With operations in Spain and Mexico, TaxDown has already processed over 2 million personal income tax returns, making it the leading digital platform for tax filing in both markets. Its success is reflected in its 4.7-star Google rating, based on more than 30,000 user reviews.

Javier Cebrián, partner at Bonsai Partners, noted, “We’ve invested at a pivotal moment, as TaxDown’s AI-powered services are gaining strong traction in both Spain and Mexico. The company is redefining the tax filing process through intelligent automation.”

Founded during the pandemic by Enrique García, Álvaro Falcones, and Joaquín Fernández, TaxDown simplifies the income tax filing process through an AI-driven platform that automatically analyzes tax laws to apply all applicable deductions. The company now boasts a team of more than 200 expert tax advisors, enabling users to file personalized, optimized returns in just minutes.