Your AI CFO.
From day one.
Finn runs your books, files your taxes, and guides your next move — in chat, by voice, on WhatsApp, in Slack. 24/7, from $12/month. Built for the modern founder.
No credit card required · Free during Early Access
The shift
AI-native, not AI-bolted-on.
Every other accounting tool is a 2010-era ledger with a chat box stapled to the side. AccountsOS was built the other way around: AI first, every screen second.
The old way
- —£100-300/month accountant who responds in 2 days.
- —£20-35/month software that needs a 6-hour onboarding call.
- —You enter every transaction. You categorise every receipt.
- —One country, one currency. One entity at a time.
- —Tax advice arrives a month after you needed it.
With Finn
- An AI CFO that answers in 4 seconds, 24/7.
- One sign-up, no setup call, no training. Talk to it.
- Forward an email. Drop a CSV. Snap a receipt. Done.
- 4 countries today, 6 entities under one login.
- Tax savings flagged the moment they appear.
Capabilities
What Finn actually does for your business.
Tax engine
Tax filed in chat.
Country-aware tax engine knows CT600, COR02, Bulgarian CIT, and UAE FTA. VAT MTD submits direct to HMRC via our own approved gateway. Marginal relief, S455, QFZP — all handled.
Bookkeeping
Books that close themselves.
Forward your receipts. Drop a CSV from any bank, anywhere — our AI maps the columns automatically. Finn categorises, reconciles, and flags anomalies before you ever see them.
Multi-country
One CFO. Every jurisdiction.
Run a UK Ltd, an Irish DAC, and a Dubai free-zone FZCO under one login. Switch in a click — Finn loads the right tax rules, deadlines, currency, and registry.
Team
Team workflow built-in.
Invite your co-founder, your bookkeeper, your accountant. Approver roles, reimbursement batches, audit trail. No second seat fee, no separate payroll bolt-on.
Multi-country
One CFO. Every jurisdiction.
Live in 9 countries across 4 continents. Each one with its own tax engine, registry sync, and currency — not a generic translation.
Channels
Same Finn. Wherever you work.
Forward a receipt from Gmail. Ask a tax question on WhatsApp while driving. Approve an expense from Slack. One memory, every surface.
Up and running in minutes
Three steps. No migration headaches.
Sign up
Create your account and connect your company via Companies House. Takes 2 minutes.
Connect your books
Upload bank statements, forward receipts, or import from your existing tool. We handle the rest.
Finn takes it from here
Your AI CFO categorises transactions, tracks deadlines, files taxes, and tells you what to do next.
A CFO for $12/month.
Founders typically spend hundreds a month on accountant + bookkeeping software + receipt scanning + payroll + invoicing. Finn replaces all of it.
| What you're replacing | Typical cost |
|---|---|
| Accountant | £100-300/month |
| Bookkeeping software | £20-35/month |
| Receipt scanning | £15-30/month |
| Payroll software | £10-20/month |
| Invoicing tool | £10-20/month |
| Traditional total | £155-405/month |
| AccountsOS | Free* |
*Free during Early Access — then just $12/month
Sign up now to lock in $12/month forever when paid plans launch (standard price $24/month)
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Start with Finn today.
Your AI CFO is ready. Free during Early Access — no credit card, no commitment.
No credit card required · Free during Early Access