Year End Accounts Deadline

Galexia Digital • November 27, 2019

Year End Accounts: Don't get caught out by the deadlines! 

Every year all Limited Companies, even dormant ones, are required to submit Annual Accounts. 

Late submission of these Accounts will result in an automatic fine, and a substantial one too! So when do you need to file your Accounts? 

The main company deadlines are as follows: 

Company Accounts: To be filed 9 months following the Company's Year End date to Companies House.

Corporation Tax: Payable 9 months and 1 day following the Company's Year End to HMRC. Note in this is your first Year End you may have two amounts payable with different due dates.

Corporation Tax Return: To be filed 12 months following the Company's Year End.

If you fail to meet your Accounts deadline with Companies House, the fines are as follows:
Time after the deadline Penalty (for private limited companies)
Up to 1 month £150
1 to 3 months £375
3 to 6 months £750
More than 6 months £1,500
There are then separate deadlines for your Corporation Tax Return:New Paragraph
1 day £100
3 months Another £100
6 months HM Revenue and Customs (HMRC) will estimate your Corporation Tax bill and add a penalty of 10% the unpaid tax
12 months Another 10% of any unpaid tax
It’s not all bad though folks – if you’re able to submit your return and payment early, HMRC should pay you a little bit of interest so it’s definitely worth getting ahead of your deadlines.
 
Get in touch to see how we can help you get on top of your company Accounts.New Paragraph
October 18, 2025
Find out what qualifies for UK R&D Tax Relief in 2025. Understand the merged R&D scheme, subcontractor limits, overseas restrictions, ERIS thresholds, and how to build compliant records.
October 18, 2025
Understand the new UK R&D Tax Relief scheme for 2025. Learn what counts as R&D, how to avoid HMRC audit risk, and how to claim safely under the merged scheme rules.
October 10, 2025
Download our free SEIS / EIS founder checklist to stay HMRC-compliant. Covers eligibility, advance assurance, State Aid rules and post-raise filings.
Show More