A computation you can read
Every figure shows the rule and inputs behind it. Change an input, the figures change.
For UK micro-entity companies
Your company’s accounts and CT600, filed together for £69.
Answer two questions, see the tax. File both returns when you are ready.
Pay when you file. Nothing up front. See pricing.
Nothing stored. No account needed.
01 · What you get
What you get
Both returns from one set of figures
Accounts for Companies House, CT600 for HMRC. Enter the numbers once.
Your credentials stay yours
You sign in with your own Government Gateway login. We never store it.
02 · Rates
The rates the calculation uses
Financial year from 1 April 2026, read from gov.uk.
- Small profits rate
- 19%
- augmented profits up to £50,000
- Main rate
- 25%
- augmented profits above £250,000
- Marginal relief between the limits
- 3/200
- standard fraction, per HMRC manual CTM03925
03 · Pricing
Pricing
Computing is free. Only filing is paid.
| Filing | Price |
|---|---|
Accounts + Corporation Tax return Micro-entity annual accounts and Corporation Tax return, filed together. One price, both filings. Run the free calculation | £69 |
Dormant company Dormant company accounts and nil Corporation Tax return. Run the free calculation | £29 |
Pay by card when you file, through Stripe. Pricing detail.
04 · Who this is for
Who this is for
Micro-entities: meet any two of these and you qualify. Most one-person companies do.
- Turnover
- up to £1m
- Balance sheet
- up to £500k
- Employees
- up to 10
One UK trade, periods up to twelve months. Full scope.
05 · Questions
Questions
What does the £69 cover?
One year: accounts to Companies House and the CT600 to HMRC. Pricing.
When do I pay?
When you file. The computation is free and you can run it as often as you like.
Do you store my Government Gateway login?
No. You sign in at the moment of filing and it is used once.
Is this tax advice?
No. FilingKit applies published rules and shows each one. It never recommends a position.
Does my company qualify?
Micro-entity: any two of turnover up to £1m, balance sheet up to £500k, up to 10 employees. Most one-person companies do.