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Both UK. Both affordable. One has AI.

Clear Books vs AccountsOS

Clear Books: solid UK accounting software since 2008.

AccountsOS: AI-native accounting for 2025.

Clear Books knows UK accounting. We respect that. But software built in 2008 can't offer AI chat, voice commands, or proactive tax guidance. You deserve both the UK expertise and modern intelligence.

Clear Books is a well-established UK accounting platform (from £12/month) with solid HMRC and VAT support. AccountsOS is £20/month (14-day free trial) and adds AI chat via Finn, voice commands, automatic receipt processing, and proactive tax optimisation that Clear Books does not offer. Both handle the UK compliance basics well; the difference is whether you want software you operate or an AI that does the work for you.

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Same Price. Different Era.

Clear Books and AccountsOS cost roughly the same. But one was built when the iPhone was new. The other was built for the AI age.

Clear Books

Traditional accounting software. Click through menus, fill out forms, generate reports. Reliable, but you do all the work.

  • Navigate menus to find anything
  • Manual transaction categorization
  • You interpret the reports

AccountsOS

AI-native from day one. Chat like you're texting a friend who happens to know UK tax law inside out.

  • “What's my corporation tax estimate?”
  • Voice commands while multitasking
  • AI catches tax savings proactively

Why Directors Are Making the Switch

Clear Books served you well. But now there's accounting software that actually thinks.

Chat, don't click

Clear Books has menus and forms you've used for years. AccountsOS has a chat bar. Type "add expense Costa Coffee £4.50" and it's done. No screens to navigate.

Voice-first accounting

Log expenses from the car. Ask questions while cooking. Clear Books is screen-bound. AccountsOS goes wherever you go.

AI that actually advises

Clear Books shows you data. AccountsOS tells you what to do with it: "Take £12,570 salary and £30k dividends - you'll save £2,847." That's real advice.

Feature Comparison

FeatureAccountsOSClear Books
Conversational AI interface
Chat naturally: "What's my VAT liability?" vs navigating menus
Voice commands
Dictate expenses hands-free. Clear Books requires a screen.
AI receipt processing
Snap, upload, done. Clear Books needs you to enter details.
4 secondsManual
Proactive tax optimization
AI spots savings you'd miss. Clear Books waits for you to ask.
Bank feeds
Both connect to UK banks
Invoicing
Both create and track invoices
MTD for VAT
Both are MTD-compliant
AccountsOS is on HMRC's list of MTD VAT software (opens gov.uk in a new tab)
UK-focused
Both built for UK businesses - acknowledge Clear Books' heritage
Salary/dividend optimization
AI calculates your optimal split. Clear Books doesn't.
Modern interface
Clean, dark-mode design vs legacy 2008 interface
Dated
Learning curve
Chat interface vs traditional software menus
ZeroMedium
Companies House sync
Auto-sync deadlines from Companies House

Clear Books

£12-25/month

Depending on features needed

  • - Traditional menu-driven interface
  • - Manual categorization and data entry
  • - Reports you interpret yourself
  • - Solid UK compliance

AccountsOS

£20/month

Everything included. No tiers.

  • + AI chat interface (no menus)
  • + Voice commands for hands-free use
  • + 4-second AI receipt processing
  • + Proactive tax optimization
  • + Modern dark-mode design

Data vs Intelligence

Clear Books stores and organizes your financial data. AccountsOS understands it.

Clear Books shows you:

“Software expenses: £3,420 YTD”

A number on a report. What does it mean? Is it high? Low? Tax-deductible? You'll need to figure that out.

AccountsOS tells you:

“Software expenses are £3,420 - all tax-deductible. I notice you're paying for Zoom and Teams separately. Consolidating could save £180/year.”

Context, insight, and actionable advice - not just numbers.

We Respect Clear Books' UK Heritage

Clear Books has been serving UK small businesses since 2008. They know HMRC, VAT, and Companies House. So do we. The difference isn't UK knowledge - it's how you access it.

Clear Books

Click Reports → VAT → Select period → Generate → Export → Read → Interpret

AccountsOS

“What's my VAT liability this quarter?”
→ Instant answer with context

Frequently asked questions

What's the difference between AccountsOS and Clear Books?

Clear Books is traditional UK accounting software launched in 2008. AccountsOS is AI-native accounting launched in 2024. Both are affordable and UK-focused, but AccountsOS lets you chat naturally, use voice commands, and get proactive tax optimization. Clear Books requires you to navigate menus and interpret data yourself.

Is Clear Books or AccountsOS better for UK limited companies?

Both are built for UK businesses and handle the basics well: invoicing, bank feeds, VAT returns. The difference is the interface and intelligence. Clear Books is traditional software - you click through menus. AccountsOS is AI-powered - you chat naturally and get proactive advice on salary vs dividends, tax deductions, and deadlines.

How does Clear Books pricing compare to AccountsOS?

Clear Books starts at around £12/month for basic plans, up to £25/month for full features. AccountsOS is free for 14 days (then £20/month) flat with everything included: AI chat, voice commands, receipt scanning, tax optimization. Similar price point, but AccountsOS includes AI features that would cost extra or require an accountant with Clear Books.

Can I migrate from Clear Books to AccountsOS?

Yes. Export your transactions and contacts from Clear Books as CSV files. Upload them to AccountsOS and our AI will categorize and reconcile everything automatically. Most users migrate within an hour. Your bank will reconnect directly to AccountsOS.

Does Clear Books have AI features?

Clear Books has added some automation like bank rules and receipt capture, but it's not AI-native. You still navigate traditional menus, manually categorize most transactions, and interpret reports yourself. AccountsOS was built AI-first: conversation is the primary interface, and the AI proactively suggests tax savings.

Is Clear Books interface outdated?

Clear Books has been around since 2008 and the interface shows its age. While functional, it uses older design patterns. AccountsOS was built in 2024 with a modern dark-mode interface and chat-first design. If you spend hours in your accounting software, the interface matters.
Trustpilot5 out of 5 stars

I love the innovative approach to accounting

I love the innovative approach to accounting, which can often be quite dull. I particularly appreciate how interactive it is, including the emails, reminders, and the ability to anticipate the next step.

Ksenija · SI

Trustpilot5 out of 5 stars

Great UI, fast response

Great UI, very quick at fixing any errors/bugs.

Mitch Edwards · GB

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