Chartered accountants' institute co-leads four million euro seed round in tax AI startup Tallia
The Institute of Chartered Accountants in England and Wales co-led, with Outward VC, a seed round of €4 million ($4.5 million) in Tallia, a London-based AI startup formerly known as Revax. Founded in 2025 by Jack Mander and Alexander Bartlam, Tallia builds research and drafting software for tax firms. The company reports a fully cited first draft in an average of 30 seconds.
The backing of AI in tax work here comes from an unusual chair: a body named for the profession the software sells to is also an investor in it. Tallia's case rests on accuracy, traceability and senior review, so the institute's voice now carries a financial stake in that argument. The reported savings of five hours per fee earner each week, meanwhile, come from Tallia itself.
Source: EU-Startups · November 3, 2026