I Filed Dormant Accounts, do I still need to File a Tax Return with HMRC?

Despite the filing of dormant accounts to Companies House, HMRC still need to be informed of this separately as they are not automatically updated with this information. 

Instructions for informing HMRC that your company is dormant can be located on the following link:
https://www.gov.uk/dormant-company/dormant-for-corporation-tax