We Built the CFO We Wished Existed
Meet Finn — the AI CFO we wished existed when we ran our own companies. Always available, actually helpful, and doesn't charge £100 for a 10-minute question.
Our Mission
Make accounting invisible for UK founders.
You should be able to dump receipts in a box (or just forward them), ask questions in plain English, and trust that your tax is optimized and deadlines are handled. The technology exists to make this possible. We're building it.
"Why should running a small company mean becoming a part-time accountant? We built Finn so you don't have to."
— The question that built Finn, your AI CFO
What We Stand For
UK-Focused
Built specifically for UK limited companies. We don't try to be everything to everyone — we're laser-focused on HMRC, Companies House, and MTD.
AI-Native
Not AI bolted onto legacy software. AccountsOS was built from the ground up with AI at its core, not as an afterthought.
Founder-Friendly
We know you started a business to do what you love, not to become an accountant. We speak plain English, not jargon.
Honest & Transparent
No false promises, no fake testimonials. We tell you what works, what doesn't, and when you should talk to a human professional.
Our Journey
The Problem
Set up a UK Ltd company and had 101 questions. Frustrated with expensive accountants who rarely respond, and software that's too complex for non-accountants.
Building the Vision
First version of AccountsOS — and Finn takes shape: AI chat that actually understands UK tax, receipt scanning that works, deadline tracking that's proactive.
Launch & Growth
Finn goes live with early users. Bank statement import, document processing, invoicing, payroll — the tools founders actually need, all in one place.
The Goal
Finn handles everything: MTD filing, tax optimization, proactive alerts — an AI CFO that knows your business better than any traditional accountant could.
Built by Founders, for Founders
AccountsOS is part of the Thrive Venture Labs portfolio. We've run our own companies, dealt with the same accounting frustrations, and are building the solution we needed.
Join the Journey
We're still early. Join our founding users and help shape the future of accounting for UK founders.
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