Everything Finn Does for Your Business
One AI CFO. One platform. One price. From proactive tax advice to VAT submission, Finn handles everything a UK Ltd company director needs.
See It In Action
Real screenshots from our app. No mockups, no staging data. This is what you get when you sign up.
Command Center
Your financial overview at a glance. See revenue won, cash collected, outstanding payments, and your pipeline. Get AI-prioritized tasks and upcoming deadlines all in one place.
- Real-time financial metrics
- AI-prioritized action items
- Upcoming deadline alerts
- Quick access to everything
You said
“How much have I spent on software this month?”
AccountsOS
You've spent £1,240 on software — Figma, GitHub, and 4 others. That's up £180 vs last month.
Tap the mic to ask anything
Your accountant, in your pocket
The AccountsOS mobile companion app. Chat with your books, snap receipts, and check your numbers — all from your phone.
AI-Powered Core
The intelligence behind Finn
Unlimited AI Chat
Ask questions about your books in plain English. "How much did I spend on software?" "When's my VAT deadline?" Get instant answers, not reports.
Learn moreVoice Commands & Voice Notes
Talk to your accounts hands-free. Record expenses while driving, ask questions without typing. Powered by Gemini Live.
Learn moreReceipt Scanning with AI OCR
Snap a photo of any receipt. Our AI extracts vendor, amount, date, VAT, and category automatically. Works with crumpled, faded receipts.
Learn moreProactive Tax Optimization
AI analyzes your transactions and spots savings you'd miss. Get alerts about claimable expenses, optimal salary/dividend splits, and tax-efficient decisions.
Learn moreSmart Transaction Categorization
Every transaction is automatically categorized against UK GAAP accounts. AI learns your patterns and flags anything unusual for review.
Persistent Memory
Finn remembers every conversation, decision, and financial pattern across all sessions. Powered by MemoryOS, your AI CFO builds long-term knowledge of your business and gets smarter the more you use it.
Learn moreIntegrations
Connect your existing tools and workflows
Bank Statement Import (CSV/PDF)
Upload statements from any UK bank. We auto-detect the format and parse every transaction. Supports Barclays, Monzo, Starling, Revolut, HSBC, Lloyds, and more.
Learn moreCompanies House Auto-Sync
Enter your company number and we fetch everything: incorporation date, directors, SIC codes, PSC details, and all filing deadlines automatically.
Learn moreEmail Document Forwarding
Forward invoices and receipts to your unique AccountsOS email. AI extracts all data and adds to your books automatically.
Learn moreClaude Desktop Integration (MCP)
Query your accounts directly from Claude Desktop via Model Context Protocol. Ask tax questions, check balances, create transactions—all from your AI assistant.
HMRC MTD Connection
Connect directly to HMRC for Making Tax Digital. Submit VAT returns with one click and receive official receipts.
Learn moreSnap receipts on the go, forward invoices, ask "Can I claim this?" Your AI CFO in the app you already use.
Slack
Chat with your books in your workspace. Upload documents, get deadline alerts, ask questions without leaving Slack.
Telegram
Message your AI CFO on Telegram. Forward receipts, ask questions, get deadline alerts — all from @accountsOS_bot.
Microsoft Teams
For businesses on Microsoft 365. Your AI CFO in your workflow, with OneDrive and SharePoint integration.
Tax & Filing
Stay compliant with HMRC and Companies House
Corporation Tax CT600 Calculator
Accurate CT calculation with correct marginal relief for 2023+ rates. Handles the complex 19-25% band properly—something most software gets wrong.
Annual Accounts Wizard
Prepare your statutory accounts with our step-by-step wizard. Auto-populates Profit & Loss and Balance Sheet from your transaction data.
VAT MTD Submission
Calculate your 9-box VAT return, lock the period to prevent changes, and submit directly to HMRC. Receive official receipt with form bundle number.
Confirmation Statement Checklist
Step-by-step guide to filing your CS01 with Companies House. We pre-fill everything we know and link directly to the filing portal.
Smart Deadline Reminders
Based on your incorporation date, we calculate every deadline: CT, Annual Accounts, Confirmation Statement, VAT. Get reminded at 14, 7, 3, and 1 day before.
Learn moreFiling Submission Guides
For each deadline, we provide a detailed checklist of what you need, what to check, and direct links to HMRC/Companies House portals.
Self Assessment Dashboard
Track SA returns by tax year, view your HMRC balance and payment history, and estimate personal tax liability — all connected via the HMRC API.
Learn moreFinancial Management
Track every aspect of your company finances
Director's Loan Account Tracking
Track loans between you and your company. Running balance, transaction history, and automatic S455 tax warnings when you owe the company money.
Bank Reconciliation with AI Matches
Visual dashboard showing unreconciled transactions. AI suggests matches between bank transactions and your receipts/invoices. One-click approve.
Dividend Tracking & Vouchers
Record dividend payments with proper documentation. Generate dividend vouchers that meet HMRC requirements.
Professional Invoicing
Create and send professional invoices to clients. Track payment status and automatically match to bank transactions when paid.
Learn moreAutomatic Invoice Chasing
Opt-in payment reminders that escalate automatically. Three tiers: friendly at 7 days, firm at 14, final at 30. Toggle chasing on any invoice at any time. Chase history with full timeline.
Expense Claims & Mileage
Track business expenses and travel. HMRC-approved mileage rates applied automatically. Perfect for client visits and business travel.
Learn moreMulti-Currency Support
Handle foreign currency transactions with automatic GBP conversion at the transaction date rate. Perfect for international clients or suppliers.
Salary & Dividend Optimizer
Calculate the most tax-efficient salary and dividend split. Side-by-side comparison of income tax, NI, Corporation Tax, and net take-home pay.
Learn morePayroll & RTI
Gross-to-net salary calculations with tax, NI, and pension deductions. Director-specific NI methods. RTI submission tracking for HMRC compliance.
Learn moreDouble-Entry General Ledger
Proper debit/credit journal entries behind every transaction. Full audit trail with balanced books guaranteed by the accounting equation.
Bills & Accounts Payable
Create and track supplier bills. Record what you owe, schedule payments, and match to bank transactions when paid.
Estimates & Quotes
Create professional estimates for clients. Convert accepted estimates to invoices with one click.
Recurring Invoices
Set up automated invoice schedules for retainer clients. Choose frequency, start date, and let AccountsOS handle the rest.
Reports & Analytics
Understand your business at a glance
Profit & Loss Statement
Real-time P&L broken down by category. See your income, cost of sales, expenses, and profit with tax adjustments for disallowable expenses.
Learn moreBalance Sheet
Assets, liabilities, and equity at any date. Includes fixed assets, bank balances, trade debtors/creditors, and Director's Loan Account.
Learn moreVAT Summary (9-Box)
MTD-ready VAT calculation showing all 9 boxes. Broken down by VAT rate with supporting transaction details.
Transaction Reports
Filter and export transactions by date, category, account, or custom criteria. Perfect for accountant handover or HMRC enquiries.
Tax Position Overview
See your estimated Corporation Tax, VAT liability, and upcoming payments in one dashboard. No surprises at year end.
Cash Flow Forecast
Project your bank balance forward based on historical patterns, upcoming invoices, and known obligations like VAT and Corporation Tax.
Trial Balance
Debit and credit totals for every account in your chart of accounts. Validates your books are balanced and ready for reporting.
Report Exports (PDF & CSV)
Download your P&L, Balance Sheet, VAT summary, and Trial Balance as professional PDFs or CSV spreadsheets.
Business Tools
Everything else you need to run your accounts
Transaction Review
Review AI-categorized transactions with confidence scores. Edit categories, add notes, see AI reasoning. Batch operations for bulk updates.
Document Storage
All receipts and invoices stored securely. Linked to transactions for easy retrieval. Meets HMRC 6-year retention requirements.
Contact Management
Track suppliers and customers. See transaction history, outstanding balances, and payment patterns for each contact.
Project Tracking
Allocate income and expenses to projects. Track profitability per project or client. Perfect for freelancers and agencies.
Trading Entities
Track multiple income streams separately. Ideal for directors with consulting, property, or other side income through their company.
SEIS/EIS Funding Hub
Eligibility checker, tax relief calculator, and preparation checklist for Seed Enterprise and Enterprise Investment Schemes. Get investor-ready with guided workflows.
Contract Templates & Signing
160+ legal contract templates with AI-generated clauses. Edit sections, generate PDFs, and send for electronic signature — all from your dashboard.
Learn moreMonthly Bookkeeping Reminders
Automated monthly reminders to review transactions, reconcile accounts, and stay on top of your books. Never let bookkeeping pile up.
Data Export
Export everything anytime. CSV, Excel, or JSON formats. Your data is always yours.
Global Search (Cmd+K)
Find anything instantly. Search across transactions, contacts, invoices, and documents with keyboard-first navigation.
Audit Trail
Full change history on every financial record. See who changed what, when, and why — essential for compliance.
Security & Privacy
Enterprise-grade protection for your financial data
Bank-Level Encryption
All data encrypted with AES-256 at rest and TLS 1.3 in transit. The same encryption used by major banks.
AI Never Trains on Your Data
Your financial data is processed but never used to train AI models. We have contractual guarantees with all AI providers.
EU Data Centers
All data stored in EU data centers. Fully GDPR compliant with data processing agreements in place.
Read-Only Bank Access
We can only view your transactions. No ability to move money, make payments, or modify your bank account in any way.
Your Data, Exportable Anytime
Download all your data whenever you want. Delete your account and everything is permanently removed within 30 days.
SOC 2 Infrastructure
Built on Supabase with SOC 2 Type II certification. Enterprise-grade infrastructure from day one.
Two-Factor Authentication (2FA)
Protect your account with TOTP-based two-factor authentication via any authenticator app.
Replace Your Entire Accounting Stack
Stop paying for 5 different tools. Finn and AccountsOS replace them all.
What you're replacing
- Accountant fees£100-300/mo
- Bookkeeping software£20-35/mo
- Receipt scanning app£15-30/mo
- Invoicing tool£10-20/mo
- Payroll software£10-20/mo
- Total£155-405/mo
AccountsOS
- All 75+ features included
- Unlimited AI conversations
- Unlimited document uploads
- All integrations included
- No per-user pricing
- No feature gates
Save up to £4,750/year
Ready to Meet Your AI CFO?
Finn is free during Early Access. No credit card required. Every feature included from day one.