Use this page when your accounts must be filed with Companies House and you need clarity on deadlines, account versions and how the public-register filing differs from the HMRC CT600 package.
Companies House filing focuses on submitting approved annual accounts to the public register. We check the account type, company details, accounting period and filing route, prepare the iXBRL accounts where digital filing applies, submit the filing and return confirmation evidence once Companies House accepts it.
| Entity | Deadline | Notes |
|---|---|---|
| Private company | 9 months after financial year end | GOV.UK states this deadline for annual accounts with Companies House. |
| Public company | 6 months after financial year end | Public companies normally have a shorter filing window. |
| Newly incorporated private company | 21 months after registration | GOV.UK states this for first accounts with Companies House. |
| LLP | Check LLP-specific filing route | Some LLP account types have specific online filing support. |
| Mistake | Consequence | How we prevent it |
|---|---|---|
| Wrong accounting period dates | Rejection or correction request | Pre-submission period check |
| Wrong accounts version | Public register or HMRC mismatch risk | Separate HMRC and Companies House version review |
| Missing directors report or signature context | Completeness issue | Accounts completeness checklist |
| Incorrect company details | Rejected filing or follow-up query | Company number and registered details check |
| Late filing | Automatic penalty risk | Deadline review before work starts |
After the Companies House submission, we monitor the response and return confirmation evidence for your records. Your source files and filing pack are handled with AES-256 encryption, UK-only processing and ISO 27001-aligned controls.
After the Companies House submission, we monitor the response and return confirmation evidence for your records. Your source files and filing pack are handled with AES-256 encryption, UK-only processing and ISO 27001-aligned controls.
Yes, where the required authorisation, company details and filing route are available. We confirm the route before submission.
No. HMRC filing is tied to the CT600 and tax computation. Companies House filing places annual accounts on the public register.
Sometimes, but the required version can differ. For example, public-register accounts may be abridged or filleted where rules allow, while HMRC usually needs accounts that support the tax return.
GOV.UK states annual accounts for a private limited company are due 9 months after the company financial year ends.
GOV.UK states first accounts for a private limited company are due 21 months after registration with Companies House.
Yes. GOV.UK says accounts must be approved by company directors before filing.
Companies House can issue automatic late filing penalties, and repeated late filing can increase the penalty risk.
Some LLP package accounts can be filed online, but the filing route depends on the account type and Companies House support.
Fixed pricing. Expert support. Fast delivery.
We deliver three solutions: iXBRL filing, UKSEF compliance, and ESG reporting. Ready for 2027 mandatory software filing. Our team responds to your questions within 30 minutes during business hours (Mon–Fri, 09:00–17:30).
40–60% lower cost. 30-minute support response. 48-hour delivery.
