Hi, I’m Finn.
Always on. Always have your back.
I’m your AI accountant. I don’t just answer questions, I take the action: filing, posting, invoicing, chasing. Talk to me by chat, voice, or a live video call, from any device, any time.
Free for 14 days. No credit card. Your first conversation takes 30 seconds.
Book a video call with Finn.
Finn isn't a chatbot. Finn is an accountant you can actually talk to. Pick a slot, jump on a call, ask anything. Like a video call with an accountant who's read everything ever published about UK tax law.
How it works
- 1Pick a 15-minute slot in the next 24 hours
- 2Get a confirmation email with your call link
- 3At your slot, click the link
- 4Finn appears on video, greets you, asks what you'd like to discuss
- 5Have a real conversation. Ask anything.
Ask Finn anything. Right now.
No signup. No credit card. No catch. Type a question, get an answer. This is the same Finn that runs inside AccountsOS.
Embedded chat coming soon. In the meantime, sign up free and start a real conversation with Finn.
Finn doesn't just talk. Finn does.
Most AI tools stop at the answer. Finn answers, asks for confirmation, then takes the action. Books a transaction. Files a return. Sends the invoice. Posts the journal.
"Categorise last week's transactions"
Posts 47 transactions to GL codes. Flags 2 for review. Done in 6 seconds.
"Pay Sarah's £340 expense claim"
Confirms with you. Books it to Salaries. Marks as reimbursed. Logs the audit trail.
"What's my VAT this quarter?"
Pulls the 9-box. Flags 3 reverse-charge entries. Drafts the return for your approval.
"Send a reminder to Acme Ltd for last month's invoice"
Drafts the email. Shows it to you. Sends it once you confirm.
"I just got off a call with Acme — they want a Q3 retainer for £15k"
Creates the deal. Logs the call. Moves the stage to Pitched. Reminds you in 5 days if there's no follow-up.
Every action is confirmed. Every action is logged. Every action is reversible. Finn is your accountant, not your nemesis.
Finn lives where you live.
Forward a receipt from a restaurant. File a VAT return from a Slack DM. Ask Finn what you owe HMRC while you're driving.
Voice
LiveTalk to Finn while you're driving. Hands-free, in 12 languages.
Photograph a receipt at dinner. Finn extracts, categorises, posts.
Slack
LiveDM Finn from your team workspace. Approvals, queries, reports.
Telegram
LiveSame as Slack, for teams who prefer it.
Forward anything to finn@accounts-os.com. Deal proposals, receipts, contracts, task lists, questions. Finn reads it, classifies it, and acts.
Web and mobile
LiveFull chat at accounts-os.com. Voice, file upload, the works.
Most AI tools are stuck inside an app. Finn is wherever you work.
Forward anything to Finn.
It just gets handled.
One address. Every email type. A reply telling you exactly what Finn did.
A deal email
Your sent proposal
New contact. New opportunity. Proposal logged on the deal.
A receipt
PDF from a supplier
Amount, VAT, date extracted. Matched to a transaction.
A contract
Signed agreement
Attached to the deal. Parties + dates recorded.
A task list
Your weekly to-dos
A task per line, with due dates if you wrote them.
A question
"What is my outstanding revenue?"
Replied with the answer, from your live data.
Anything else
Not sure? Forward it.
Finn reads, decides, acts. Or says it can't.
Stop running on last month's data.
Finn pulls live transactions from your bank, your invoicing, your expenses, and projects forward. Ask "what if" and watch the numbers redraw.
Cashflow runway
Live, not last quarter- Live bank feeds: Mercury, Stripe, Wise, Plaid, plus CSV for everyone else
- Real-time transaction categorisation
- Multi-currency, multi-entity, multi-bank
- Updates daily, not monthly
Questions about Finn
Is Finn actually an accountant?
Finn is an AI accountant. Trained on tax law, accounting standards, and HMRC rules. Finn does the day-to-day work a human bookkeeper or accountant would do, available 24/7. For complex edge cases, like negotiating with HMRC over a penalty, we recommend a qualified accountant. Finn is built to do 95% of the job and tell you when the other 5% needs a human.
Can Finn take actions, or just answer questions?
Finn takes actions. Creates transactions, raises invoices, marks things as paid, logs expenses, sets deadlines, files returns. Every write action requires your confirmation. Every action is logged in an audit trail you can review.
Will I still need an accountant?
For most micro-Ltd companies and growing businesses, Finn handles everything you need day-to-day. You may still want an accountant for complex tax planning, an HMRC enquiry, or a one-off transaction. Finn will tell you when something needs a human.
How does Finn know about my company?
Finn has full context: your transactions, invoices, deadlines, VAT status, filing history, contacts, and historical conversations. Every reply is personalised to your actual situation, not generic tax advice.
Does Finn work for a team, or just for me?
Both. Add team members with admin or accountant access. Each person can chat to Finn from their preferred channel. Approvals, expense submissions, and shared tasks flow through Finn.
What if Finn gets something wrong?
Finn is honest about uncertainty. When confidence is low, Finn will say so and ask for clarification rather than guess. Every action is reversible, every change is logged, and you have a full audit trail.
Is my data safe with Finn?
Yes. Encrypted at rest and in transit. Stored in EU data centres. Never used to train AI models. Finn only ever sees your own data.
Can I use Finn from my phone?
WhatsApp, Slack, Telegram, voice, mobile browser, email forwarding. Native iOS and Android apps in the roadmap.
Ready to meet Finn?
Free for 14 days. Your first conversation takes 30 seconds. No credit card.