Everything Finn Does for Your Business

Issue, send, track and get paid — without lifting a finger after the first invoice.

Subscriptions, retainers, monthly billings — set once, forget forever.

Quote in 60 seconds. Convert to an invoice in one click.

Issue official e-Arşiv invoices directly with GİB. No middleman, no integrator fees, no portal typing.

Snap, forward, drop, dictate — receipts reach your books from 9 different channels.

Drop a CSV or PDF from any UK bank — we read it. No template setup.

Out-of-pocket spend captured, approved, paid back. HMRC mileage and home office calculated for you.

Wherever you message, you can do accounting.

Your bank feed teaches itself. The same payee never gets manually categorised twice.

Every document. Searchable. Linked. Stored for 6 years.

HMRC mileage at the right rate, automatically.

The £10/week HMRC flat-rate, calculated and posted automatically.

Forward to documents@accounts-os.com — receipts, invoices, statements all flow in.

Catch up a month of paperwork in one drag. Background processing, retry-safe, auto-linked.

Talk to your books. Ask anything. Finn does the work.

Hands-free accounting. Drive, walk, cook — talk to your books.

Your books inside the AI assistant you already use.

Every transaction filed in the right category, automatically. No more 'what was this payment?'

The AI remembers every conversation, decision, and pattern across sessions.

One click to Finn from every screen — and Finn knows what you're looking at.

Drop any document. We figure out what it is, what's in it, what it links to, and what records it creates.

Profit, cash and what your company is worth — live. Proper statements underneath: P&L, Balance Sheet, Cash Flow.

Project cash 12 weeks and 12 months ahead — from your real recurring patterns.

Real accounting under the hood — not a single-entry shortcut.

Every GL account, debits and credits, period-by-period.

Send your accountant exactly what they need — in Excel.

See your money on a calendar — invoices, bills, expenses, payroll, journal, VAT — all plotted on the days they hit.

Your VAT return builds itself with every transaction. File when you're ready.

See your tax bill in real time, so it's never a surprise. Filing-ready numbers when you need them.

Never miss a filing again — even ones you didn't know about.

Take the most home, legally. We do the maths every payroll cycle.

The AI spots savings you'd miss. You get nudged in time to act.

Enter your company number once. We sync everything daily.

Digital records, digital links, digital submissions — by default.

One place for every HMRC interaction.

Director self-assessment ready, with dividends and salary already tallied.

Run payroll, send payslips, HMRC filings done automatically. No payroll bureau needed.

Declare, document, pay — compliantly.

Borrowing from your company gets taxed if you get it wrong. Finn watches the balance so you never do.

Every supplier, customer, contractor — in one searchable list, linked to every transaction.

Track work from pitch to paid.

Set targets. Watch them in real time. Get nudged when off-track.

Know what you owe, when, to whom. Pay without a spreadsheet.

Find anything. Transactions, contacts, invoices, documents — one keystroke.

160+ UK-relevant templates, AI-clause review and drafting, e-signature.

Pay contractors via Deel. Finn reads contracts, invoices and people directly.

UK-deep. International-aware. Run a Ltd, an LLC and a free-zone company side-by-side.

Trade in 40+ currencies. Books stay in your base currency. FX locked at date.

Run multiple businesses without paying for multiple accounting subscriptions.

Built so accounting practices can run client books too.

Every change. Every actor. Every time.

Enterprise-grade security for a startup-grade subscription.

14-day free trial, then £20/month. Everything included. Multi-currency. Cancel anytime.