Later private company accounts
A private company with a standard accounting reference date normally files later accounts 9 months after that date.
The calculator returns the ordinary annual accounts deadline for a standard later filing.
Filing deadline tool
Accounts Filing Deadline Calculator
Estimate the standard Companies House deadline for annual accounts using the company type, whether the filing is for first accounts, and the accounting dates.
This tool is designed for standard filing windows and gives a practical deadline estimate rather than advice on unusual filings or extensions.
Accounts Filing Deadline Calculator
Estimate the standard Companies House filing deadline for first or subsequent accounts using the company type and accounting dates.
What this deadline estimate covers
The result gives the standard Companies House filing deadline for a chosen company type and filing cycle.
For first accounts, the calculation also checks whether the period looks longer than 12 months and applies the longer statutory route when needed.
Rule summary
Standard annual accounts filing windows
Private companies and LLPs normally file annual accounts 9 months after the accounting reference date. Public companies normally file within 6 months.
For first accounts, a longer incorporation-based route can matter where the first accounting period is longer than 12 months.
Standard filing windows used here
Private companies and LLPs normally file annual accounts 9 months after the accounting reference date. Public companies normally file within 6 months.
For first accounts, a longer incorporation-based rule can matter when the first accounting period is longer than 12 months.
Worked examples
How the result behaves in practice
First accounts with a longer opening period
A first accounting period can trigger the alternative incorporation-based deadline test.
The tool compares the standard window against the longer first-accounts route where it is relevant.
Turn the result into an action plan
Check whether the accounting reference date and filing cycle have been identified correctly before you rely on the date.
If the deadline is close or already passed, open the late filing penalty and overdue-risk tools next.
Keep the date in a wider compliance calendar so the filing does not become an isolated one-off check.
Read the guide
Accounts filing deadlines
Use this guide to understand the standard Companies House filing windows for first and later annual accounts.
Assumptions and limits
This tool applies a published rule set directly and is designed for standard scenarios.
Assumptions
- The company type and filing cycle are selected correctly.
- The accounting reference date is the date that governs the filing window.
- The tool uses the standard Companies House deadline rules for first and later accounts.
Limits and rule basis
- Shortened periods, extensions, or special filing situations are not covered.
- The tool estimates the standard deadline only and does not validate whether the accounting reference date itself is correct.
- Companies House annual accounts guidance and standard filing windows (verified 2026-03-09)
FAQ
Why does the tool ask for the incorporation date?
It is needed for first accounts because the filing deadline can depend on the incorporation-based statutory deadline as well as the accounting reference date.