File your company accounts and corporation tax for £10
One price, both filings. Sync directly from Xero or QuickBooks, auto-tag iXBRL, and submit straight to Companies House and HMRC. No subscription. No annual licence.
Sign up freeNo card required. Only pay £10 when you submit.
The View Accounts screen — real screen, no mock-ups.
Built for directors and accountants alike
Whether you're filing for your own company or for clients, Tax Optimiser works the way you do.
Company directors
File your own statutory accounts and corporation tax without needing an accountant. Our guided workflow handles the standards, the tagging, and the submission — £10 covers both filings for the year.
See how it works →Accountants and bookkeepers
Buy credits in bulk and bring per-filing cost down to £3. File for as many clients as you like, sync directly from each client's Xero or QuickBooks, and submit to Companies House and HMRC from one place.
See credit pack pricing →From trial balance to filed accounts in three steps
Connect Xero or QuickBooks
Link your accounting software in under two minutes using OAuth. We pull the trial balance and chart of accounts automatically — no CSVs, no manual entry. Prefer a spreadsheet? You can import a trial balance instead.
Review and adjust
Map accounts to FRS 105 or FRS 102 1A categories with our guided workflow. Post adjustment journals that sync back to your accounting system. Built-in validation flags missing disclosures before you submit.
Submit to Companies House and HMRC
We generate iXBRL-tagged accounts to the current Companies House taxonomy and submit them directly from the app. Corporation tax submissions to HMRC work the same way. You get confirmation receipts in minutes.
See exactly what you get
These are real screens from the app — the same ones our step-by-step user guide walks you through. No mock-ups, no surprises after you sign up.
The statement of financial position, built from your trial balance — real screen, no mock-ups.
Real statutory accounts, built from your numbers
Your balance sheet, directors' report and notes are generated as a proper document you can read page by page — watermarked as draft until you're ready to file. Directors come straight from the Companies House register with one click, and the signature block and approval date land in the right places automatically.
Notes that fill themselves in
Fixed asset movements, debtors, employee numbers — the figures that come from your trial balance are already there, and anything else is a guided form rather than a blank page. Toggle a note on or off and the accounts re-paginate themselves.
Read the notes guide (FRS 105) →
The fixed assets note editor, pre-filled from your numbers.
Every issue listed, each with a Go button straight to the fix.
Validation that catches problems before Companies House does
Missing signatory, employee count not set, balance sheet that doesn't balance — validation lists every issue with a Go button that takes you straight to the fix. You file when it's clean, not when you hope it's clean.
Read the validation & signing guide →Full or filleted — choose at filing time
Keep a full set with the detailed income statement for your own records, and file the filleted version at Companies House so your profit stays private. One dropdown in the submission wizard, same underlying accounts.
Read the full vs filleted guide →
Choosing the filleted set in the submission wizard.
Simple, honest pricing
One filing or a thousand — the more you buy, the less you pay. Working papers are included free with every filing.
Pay-as-you-go
per company, per year — covers both your statutory accounts and corporation tax submission
FRS 105 or FRS 102 1A accounts
Corporation tax (CT600) return
Direct Xero & QuickBooks sync
Automatic iXBRL tagging
Direct submission to Companies House and HMRC
Email support
For accountants and bookkeepers
One credit = one company, one year, both filings.
| Pack | Credits | Price | £ per credit |
|---|---|---|---|
| Pay-as-you-go | 1 | £10 | £10 |
| Starter | 25 | £200 | £8 |
| Practice | 100 | £600 | £6 |
| Growth | 250 | £1,250 | £5 |
| Scale | 500 | £2,000 | £4 |
| EnterpriseBest value | 1,000 | £3,000 | £3 |
All prices exclude VAT. Credits do not expire.
Sign up to buy credits
This is the entire checkout. £10 + VAT when you submit — no subscription hiding behind it. Real screen, no mock-ups.
See every screen before you sign up
Our free statutory accounts guide walks through the whole journey — from the View Accounts screen to validation, signing and filing — using the same screenshots you've seen on this page. Read it online or download the PDF edition.
Frequently asked questions
File for £10. No subscription. No surprises.
Sign up free. Connect your accounting software. Only pay when you submit.
Sign up free