The Accountant Alternative That UK Founders Are Choosing
You don't need a £200/month accountant. You need Finn, an AI that does the same job in the background for £20/month.
AccountsOS is a UK accountant alternative at £20/month. Finn, your AI accountant, runs the books, files VAT/MTD, prepares year-end accounts and tracks Companies House deadlines automatically in the background. Try free for 14 days.
Not sure if AccountsOS is right for you?
Ask Finn anything about how it compares or what it would do for your business. No signup needed.
Traditional Cost
£100-300/month accountant
AccountsOS
£20/month with Finn doing the work
You Save
Up to £3,360/year
Free for 14 days • No credit card required
Sound familiar?
Paying £200/month for someone who knows less about your business than you do
Year-end surprises because your accountant only looks at your books once a year
Waiting for your accountant while opportunities pass
Feeling like you're paying for a relationship, not results
There's a better way
AccountsOS is the accountant alternative for modern founders. You stop doing the accountant's homework. Throw Finn receipts, bank feeds and invoices via photo, WhatsApp or email. Finn runs the books, handles VAT, prepares year-end and tracks your deadlines in the background. You just get a ping when something's ready or when Finn needs the one missing receipt.
Everything an accountant does: bookkeeping, VAT, year-end, Corporation Tax
Real-time access to your numbers (not quarterly summaries)
Instant answers to tax questions via Finn
Proactive tax optimisation suggestions
Companies House compliance and deadline tracking
MTD-compliant VAT submission
On HMRC's list of MTD VAT software (opens gov.uk in a new tab)
AccountsOS vs Traditional accountant
| Feature | AccountsOS | Traditional accountant |
|---|---|---|
| Monthly cost | £20/month, all-in | £100-300/month |
| Who does the data entry | Finn reads receipts and bank feeds | You gather docs, they key it in |
| Receipt handling | Photo, WhatsApp or email, instant | Portal upload or post |
| VAT/MTD filing | Included, filed direct to HMRC | Included but slow turnaround |
| Deadline tracking | Companies House + HMRC auto-synced | They remind you; you still chase |
| Getting answers | Ask Finn anytime, instant reply | Email; 1-3 day response typical |
| Real-time view of books | Live P&L and cash flow always on | Quarterly or annual summaries |
Perfect for
Founders comfortable with technology
Business owners who want to understand their finances
Directors who've outgrown spreadsheets but aren't ready for expensive accountants
Anyone who's thought 'I could do this myself with the right tools'
Frequently Asked Questions
Can I really replace my accountant with software?
What if I make a mistake without an accountant?
Is it risky to do my own accounts?
What happens at year-end without an accountant?
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
Great UI, fast response
Great UI, very quick at fixing any errors/bugs.
Mitch Edwards · GB
Ready to save Up to £3,360/year?
Join UK founders who've switched to smarter, more affordable accounting.
Free for 14 days • No credit card • Cancel anytime