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Tallia Raises €4M to Expand AI Tax Platform

Tallia raised €4M Seed funding co-led by Outward VC and ICAEW to expand its AI-powered research and drafting platform for tax professionals.

By Raina Gimmel

Tallia raises €4M

The big picture: London-based AI startup Tallia, formerly known as Revax, has secured €4 million in Seed funding to expand its AI-powered research and drafting platform for tax and accountancy professionals. The round was co-led by Outward VC and the Institute of Chartered Accountants in England and Wales (ICAEW).

Why it matters:

  • Efficiency gains: Tallia aims to significantly reduce the time tax professionals spend on repetitive research and initial drafting, freeing up valuable time for complex client advisory.
  • Accuracy and traceability: The platform is designed to ensure AI-generated responses are supported by verifiable legislation, regulatory guidance, and case law, crucial for maintaining professional judgment and compliance.
  • Market trend: This funding contributes to a growing trend of European investments in AI-powered tax and accounting technology, highlighting increasing demand for specialized AI solutions in the sector.

How it works:

  • Custom retrieval system: Tallia connects AI-generated responses with relevant tax authorities, enabling advisers to verify information against legislation, guidance, and case law before use.
  • Integrated knowledge: The platform combines external tax knowledge with a firm’s internal expertise by connecting to existing documents, contracts, and templates, ensuring consistency with established practices.
  • Workflow integration: Supporting Microsoft Word, Excel, PowerPoint, and Outlook, Tallia integrates AI-assisted research and drafting into familiar software, streamlining professional workflows and accelerating document production.

The catch: The market for AI-powered tax and accounting solutions is becoming increasingly competitive, with several European startups like Mika, Dytto, A-Cube, and Zalos also securing significant funding in 2026. Tallia will need to differentiate its platform effectively beyond speed, focusing on the depth of its legal and regulatory integration and its ability to adapt to evolving tax codes to maintain a competitive edge.

Key Facts

  • Company: Tallia
  • Amount: €4M
  • Round: Seed
  • Investors: Outward VC and ICAEW (co-lead), Institute of Chartered Accountants in England and Wales (ICAEW), Portfolio Ventures, Expedite Capital, Paul Forster, Angus Miln
  • Founders: Jack Mander, Alexander Bartlam
  • Announced: 2026-11-01
  • Sector: AI-powered Tax & Accounting
  • Headquarters: London, GB

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