Accounting Software for Companies of One
You're the founder, the employee, the finance department, and the tea maker. Finn, your AI accountant, handles the books so you can focus on what only you can do.
AccountsOS is accounting software built for solo founders: Finn, the AI accountant, does the bookkeeping, VAT, and tax prep in the background so you never need a finance team. £20/month flat, 14-day free trial.
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
£20-50/month for single-user plans
AccountsOS
£20/month designed for solo use
You Save
Same or lower price, with an AI accountant doing the work for you
Free for 14 days • No credit card required
Sound familiar?
Enterprise software that assumes you have a finance team
Features for 'collaboration' when it's just you
Complexity designed for businesses 100x your size
Paying for user seats you'll never fill
There's a better way
AccountsOS is built for solo founders. One person, one company, one simple tool. Finn handles what a finance team would handle: categorisation, VAT, tax prep, month-end close, all in the background. No unnecessary complexity, no unused features, no team assumptions. £20/month, everything included.
Solo-optimised: no team features cluttering the interface
Finn: like having a finance person on call 24/7
Quick capture: snap receipts in seconds between tasks
Dashboard: see everything important at a glance
Minimal admin: Finn handles the repetitive work
Year-end prep: no accountant needed for small Ltd companies
AccountsOS vs Generic accounting software
| Feature | AccountsOS | Generic accounting software |
|---|---|---|
| Monthly cost | £20/month, everything included | £20-50/month, often with add-ons |
| Built for one person | Solo-optimised, no team clutter | Multi-user features add UI complexity |
| AI accountant on call | Ask Finn anything, instant answers | DIY reports or paid support |
| Receipt handling | Snap, WhatsApp, email: Finn processes automatically | Upload and categorise manually |
| VAT/MTD | Finn prepares and flags for review, included | Included, but you build the return |
| Monthly workload | Minutes reviewing Finn's work | Hours of data entry |
| Year-end accounts | Finn prepares agentic year-end, you review | You prepare or hire an accountant |
Perfect for
Solopreneurs running one-person limited companies
Freelancers who've incorporated
Side-hustlers with a Ltd company
Anyone who is their entire company
Frequently Asked Questions
Is AccountsOS suitable for just one person?
Can I really manage my Ltd company without a finance team?
What if my business grows and I hire people?
How much time will accounting take as a solo founder?
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 Same or lower price, with an AI accountant doing the work for you?
Join UK founders who've switched to smarter, more affordable accounting.
Free for 14 days • No credit card • Cancel anytime