How to make a company dormant
A dormant company is one which is currently not trading, which means it is inactive for Corporation Tax purposes. You do not have to tell Companies House that your company is dormant until it’s time to file your annual accounts. However, you must tell HMRC as soon as possible. PROCESS Inform the customer they should contact HMRC by telephoning the Corporation Tax department on 0300 200 3410. If they are calling from outside of the UK, they can use the following number: +44 151 268 0571 Alternatively, they can follow the link below to do this online as long as they have their UTR. https://www.gov.uk/tell-hmrc-your-company-is-dormant-for-corporation-tax