For accounting practices
AccountsOS vs Xero, QuickBooks and Sage for practices
The honest comparison for practices evaluating a switch or a pilot. Same core job as the incumbents: ledger, bank feeds, invoicing, VAT, payroll, reports. The packaging differs. Finn prepares, your practice desk is exceptions, £12 per live client with no seat fees.
Feature Comparison
| Feature | AccountsOS | Xero | QuickBooks | Sage |
|---|---|---|---|---|
| Double-entry general ledger | ||||
| Bank feeds and reconciliation | ||||
| Invoicing, quotes and payment chasing | ||||
| Bills and purchase invoices | ||||
| Receipt and document capture | ||||
| MTD VAT submit to HMRC | ||||
| Payroll (PAYE, RTI) | ||||
| Multi-currency | ||||
| Inventory and stock control | ||||
| Projects and time tracking | ||||
| CIS (Construction Industry Scheme) depth | ||||
| Companies House filing | ||||
| Multi-client practice portal | ||||
| Team seats and access control | ||||
| Per-seat fees | ||||
| AI agent prepares books overnight | ||||
| Exceptions queue across whole book | ||||
| Batch VAT and year-end prep across clients | ||||
| Chat, WhatsApp, Slack with the books | ||||
| Multi-country client books (25+ countries) | ||||
| Import from Xero, QuickBooks, Sage | ||||
| Flat practice pricing per client | £12 per live client | Per-org + add-ons | Per-org + add-ons | Per-org + add-ons |
Double-entry general ledger
Bank feeds and reconciliation
Invoicing, quotes and payment chasing
Bills and purchase invoices
Receipt and document capture
MTD VAT submit to HMRC
Payroll (PAYE, RTI)
Multi-currency
Inventory and stock control
Projects and time tracking
CIS (Construction Industry Scheme) depth
Companies House filing
Multi-client practice portal
Team seats and access control
Per-seat fees
AI agent prepares books overnight
Exceptions queue across whole book
Batch VAT and year-end prep across clients
Chat, WhatsApp, Slack with the books
Multi-country client books (25+ countries)
Import from Xero, QuickBooks, Sage
Flat practice pricing per client
Yes Partial No
Where you are equal
The core Ltd bookkeeping job is covered. All four platforms handle the general ledger, bank feeds, invoicing, bills, receipts, MTD VAT filing, payroll, multi-currency, and the Companies House connection. If your client book is standard UK Ltds running month-end and VAT quarters, the baseline capability is the same.
Where AccountsOS is ahead
The AI-native difference and the practice packaging. Finn runs the books overnight and surfaces only the exceptions, you are billed per live client with no seat fees, and 26 countries sit on one account.
Finn prepares, you review
Finn categorises transactions, reconciles the bank, and prepares VAT returns and annual accounts overnight. You see a named list of what is ready to file and what is blocked, with the reason named. The incumbents give you a ledger and a form. Finn fills in the form.
Exceptions queue, not line items
The practice desk lands what needs a human in one queue: unplaced transactions, books that do not tie to the statement, months ready to close. You work the exceptions across the whole book, not every client one by one.
Batch prep across clients
Pick a deadline group and Finn works through up to 50 clients at once: reconcile, draft the returns or the accounts, report back with a Ready and Blocked digest. The incumbents make you do it one file at a time.
Flat practice pricing
£12 per live client, billed in arrears, no seat fees. Xero, QuickBooks and Sage charge per organisation plus add-ons, so a practice with 100 clients pays per file then again per user. Your whole team gets a desk, included.
Multi-country on one account
26 countries live: GB, IE, AU, US, DE, NL, and 20 more. One client book can hold UK Ltds, Irish DACs, and Australian Pty Ltds without separate subscriptions. The incumbents are mostly single country or require separate accounts per region.
Chat and messaging with the books
Ask Finn a question from WhatsApp, Slack, Telegram, or the web. Query the books in plain English from wherever you work. The incumbents are dashboard only.
Where they still win
The honest bit. Xero, QuickBooks and Sage are decades old with huge ecosystems. If your practice specialises in inventory-heavy businesses, deep CIS workflows, or relies on a niche app that only integrates with Xero, they remain the safer choice today.
Inventory and stock control
AccountsOS does not yet have inventory management. If you serve retailers, wholesalers, or manufacturers who need stock tracking, Xero, QuickBooks and Sage are fully featured here.
Deep CIS workflows
AccountsOS covers basic CIS (subcontractor tracking, deductions, monthly returns). The incumbents go deeper with reverse charge handling, detailed CIS reporting, and tighter HMRC CIS integration. If your practice is construction-specialist, they have the edge.
Projects and time tracking
AccountsOS has basic project tagging and timesheet imports. Xero, QuickBooks and Sage offer richer project profitability, WIP tracking, and integrated timesheets. If detailed job costing is central to your clients, they are stronger.
App ecosystem
The Xero and QuickBooks app stores have hundreds of integrations: expense tools, sector-specific add-ons, niche reporting. AccountsOS integrates with the majors (Stripe, Deel, Wise, Mercury) but the ecosystem is years smaller. If you rely on a specialist app, check it connects before switching.
Your team already knows it
Xero is the UK accountant default. Your staff know where everything is, your workflows are proven, and the training cost is zero. Switching to AccountsOS means retraining the team and rewriting processes. That is worth it if Finn saves more time than the migration costs, but it is still a cost.
See how practices use AccountsOS
The practice desk, batch prep, and how Finn runs the books overnight across your whole client book.
Add Finn to your practice.
Same core job as Xero, QuickBooks and Sage. Different packaging: Finn prepares, you review and file, £12 per live client with no seat fees.
14-day free trial, no card required. HMRC-recognised for MTD VAT.