Meet Finn, your AI accountant
Your accounts, done.
Your tax, sorted.
Finn looks after the lot: receipts, invoices, payroll, year‑end accounts and tax. She works in the background, day and night, and messages you when something needs a yes.
14 days free, no card · From $12 a month
FINN · ONLINEIllustrative example
01/ What Finn does
The whole job, done.
You just say yes.
Self-employed or a limited company, Finn sets up what you need and skips what you don't.
Receipts
Snap it or forward it. Finn reads it and files it.
Invoices
Ask Finn to bill a client. She sends it and chases until you're paid.
Your bank
Every payment sorted into the right place, every morning.
Paying yourself
Salary, dividends and payroll, handled.
Expenses and mileage
Yours and your team's, claimed and approved.
Safe to spend
What's really yours after bills and tax, always current.
02/ Tax, IRS and State Secretary of State
You and Finn.
That's all it takes.
Finn works out your tax as you go, catches every deadline early and prepares every return for your review. No fines, no surprise bills, and the day-to-day accounting that usually needs an accountant is covered. Want a second opinion on big tax planning? Bring one in whenever you like.
Company tax worked out every month
For State Secretary of State
Payslips and payday figures
03/ Finn comes to you
Not a chatbot.
She gets in touch first.
Finn remembers what you told her in February and still knows it in September. She knows your business, your trade and the tax rules where you are, so she messages you when there's something worth knowing, and stays quiet when there isn't.
Remembers everything
Your decisions and preferences. You never explain yourself twice.
Knows your setup
Self-employed or a company, your trade, your busy months, your country.
Learns what works
A growing playbook of what businesses like yours do to save tax.
Learns you
Short answers or the full story. Say no once and it stays no.
04/ Any time, anywhere
Send it. Ask it.
Day or night, from anywhere.
Snap a receipt, forward an invoice, drop in a statement, ask a question at midnight, or just call. No waiting until nine for a callback. Same Finn everywhere, answering from your real numbers.
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05/ How it starts
Set up once.
Finn takes it from there.
Moving from Xero, QuickBooks or Sage? Bring your history with you.
Tell Finn about your business
Self-employed or a company, what you sell, how you get paid. She asks, you answer.
Connect your bank
Revolut, Wise, Mercury and more connect directly. Any other bank, just drop in a statement.
Send your receipts
Forward them, snap them, or connect your email and Finn picks them out herself.
That's it. From here, Finn comes to you.
Start freeIllustrative example
06/ Everything in one place
Like to see the numbers?
It's all there.
Every receipt, payment, invoice and tax return Finn handles sits in your dashboard, with the paper trail behind it. Check it whenever you like, or never.
Take the product tour07/ Safe and private
Your numbers
stay yours.
Your books live on our own servers in the EU, and nothing leaves AccountsOS without your say-so.
Stored in the EU
On our own servers, not a shared platform.
Never used to train AI
Your books are used to do your work, and nothing else.
Locked down
Read-only bank access, encryption and two-step sign-in.
Nothing without your yes
Every filing and payment waits for you to approve it.
Backed up nightly
Copies kept off-site, and restores tested.
Yours to take
Export your records whenever you like. No lock-in.
08/ Simple pricing
Whatever kind of business you run.
Everything included. 14 days free, no card.
Self-employed
Freelancers, trades and consultants. Receipts, invoices, mileage and your tax return.
$12 a month
Start freeLimited company
Books, payroll, paying yourself, year‑end accounts and company tax.
$24 a month
Start freeGroup of companies
Entities in different countries reporting into one parent. One group P&L and ledger, then dip into any entity.
$24 per company or ledger a month
One card, one bill. Built for CFOs.
See how groups workAccountancy practice
Finn does the work across your client book. Your team checks and signs off.
See how practices use FinnEnterprise
Coming soonA bigger, deeper-thinking Finn that reasons across large corporate accounts, every entity at once.
Talk to us
Speak to us09/ Before you start
The questions everyone asks.
Do I still need an accountant?
For the day to day, most small businesses don't. If you want help with complex tax planning, keep one, and Finn hands them clean, finished books.
What do I actually have to do?
Connect your bank, send your receipts, and answer when Finn asks. That's it.
What if IRS has questions?
Every number traces back to the bank payment and receipt behind it, so the paper trail is ready.
I'm just starting out. Is it for me?
Yes. Tell Finn what you've set up and she'll tell you what you need to do and when, then do it.
Can I move from my current software?
Yes. Bring your history from Xero, QuickBooks, Sage or your bank statements, and start with books that already make sense.
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