Questions and Answers
When is my company accounts filing deadline?
I run a company with the 31st March year-end, is my deadline the same as the 31st January tax return filing deadline?
Last updated 18 Dec 2023 | First published 18 Dec 2023
By Catherine Heinen, FCCA 1 min read
Directors' Series
The company filing and company tax deadlines you need to be aware of (for a 31st March year-end) are:
- submitting the Company’s accounts to Companies House by 31st December
- paying Corporation Tax by 1st January (not the 31st!)
- submitting the Company Tax Return by 31st March
These deadlines are assuming it is not the company’s first year following incorporation, in which case the deadlines would be different.
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Or contact usIf your company year-end is not 31st March, use our handy list of key dates for more information.
Companies that do not submit their accounts to Companies House on time will incur an automatic £150 penalty. Penalties then increase until the accounts are filed.
All limited and dormant companies, whether they trade or not, must deliver accounts to Companies House each year. Accounts should be submitted to Companies House online, and Companies House will not accept postal delays as a reason to appeal a late filing penalty.
The penalties for late submission are:
| Time after deadline | Penalty |
| Up to 1 month | £150 |
| 1 to 3 months | £375 |
| 3 to 6 months | £750 |
| More than 6 months | £1,500 |
If you need help, speak to a TaxAssist Accountant Cricklewood today, we’re here to help you get on track. Call us on 020 3988 0580 or use our online contact form.
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Or contact usLast updated 18 Dec 2023 | First published 18 Dec 2023
This article is intended to inform rather than advise and is based on legislation and practice at the time. Taxpayer’s circumstances do vary and if you feel that the information provided is beneficial it is important that you contact us before implementation. If you take, or do not take action as a result of reading this article, before receiving our written endorsement, we will accept no responsibility for any financial loss incurred.
Catherine Heinen, FCCA
Catherine is a qualified accountant and technical content writer with experience working at mutliple accountancy practices in the UK top 50 accountancy firms according to Accountancy Age. Catherine has significant experience in accounts, tax returns and advising clients. Catherine ensures businesses, business owners and individuals are kept up to date and informed by providing concise and informative technical material.
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