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UK Company Compliance Calendar 2026
Every compliance deadline your UK company needs to know, in one place. Bookmark or print this page as a reference.
Company incorporated
First confirmation statement due
Within 14 days of the 12-month anniversary of incorporation
Register for Corporation Tax
Within 3 months of starting to trade
Director ID verification
Existing directors: provide the personal code with the next confirmation statement
Financial year-end
Annual accounts → Companies House
9 months after year-end (private company)
Corporation Tax return (CT600) → HMRC
12 months after year-end
Corporation Tax payment → HMRC
9 months and 1 day after year-end
Confirmation statement
Annual confirmation statement → Companies House
Every 12 months from the last statement date
Filing window
Up to 14 days after the review period end date
VAT (if registered)
VAT return → HMRC
1 month and 7 days after the end of each VAT period
VAT payment → HMRC
Same date as the return
Registration threshold
Register within 30 days of exceeding £90,000 rolling turnover
PAYE / payroll (if registered)
Monthly PAYE payment → HMRC
19th of the following month (22nd if paying electronically)
Annual P60 to employees
By 31 May following the tax year end (5 April)
P11D (benefits) → HMRC
By 6 July following the tax year end
Ongoing obligations
Update Companies House within 14 days of any director / shareholder changes
Within 14 days of the change
Keep PSC register up to date
Within 14 days of any change
Maintain accounting records
For at least 6 years
Automatic penalties — quick reference
| Event | Penalty |
|---|---|
| Late confirmation statement | VariableCompanies House may issue a financial penalty |
| Late annual accounts (up to 1 month) | £150 |
| Late annual accounts (1–3 months) | £375 |
| Late annual accounts (3–6 months) | £750 |
| Late annual accounts (over 6 months) | £1,500doubles for repeat offence |
| Late CT payment (up to 3 months) | 5% surchargeon unpaid amount |
Director ID verification is mandatory now
Mandatory verification began on 18 November 2025. New directors verify before appointment; existing directors provide their personal code with the company's next confirmation statement. Fileminder is an authorised ACSP and can help remotely.
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* Guide deadlines for private limited companies. Always verify your specific dates with your accountant.