It is possible for you let HMRC know about Dormant Company Status yourself, although I would definitely advise that you take some time to check that your Company or Business is truly dormant in line with HMRCs Definition of Dormant Company Status.

Here are the two ways which you can notify HMRC of Dormant Company Status yourself:

1 . Complete Nil Returns:  submit the requested Corporation Tax Returns to HMRC with zero in the boxes.  However if you currently have no intention of trading and expect your Limited to Company to remain Dormant then this many not be the best option since HMRC will continue to send out Corporation Tax Returns each year so you will need to repeat this process, possibly incurring the cost of an accountant.

2 . Write to HMRC – First things first, you will need to Complete Your Dormant Company Accounts and file them with Companies House. Once these are accepted you can then write to HMRC to inform them that the Company is Dormant and will remain Dormant until further notice.  You must enclose a copy of the Dormant Company Accounts from Companies House as evidence of the Dormant Status.  HMRC will then update their systems and you will no longer receive a Notice to Deliver a Company Tax Return (CT603) each year, as they will understand that this form is not required.  Send your letter to HMRC at this address:


CT Services

Corporation Tax Services

HM Revenue and Customs


Always include the Company Name and Unique Tax Payers Reference on your letter and ensure it is signed by a Director of the Company.  You can find the Company’s UTR number at the top of any correspondence you have from HMRC or within your HMRC Business Online Account, under Corporation Tax.

Download a Sample of the Letter Below

If You Have Lost Your Dormant Company UTR

If you have lost your Company UTR then you will need to call HMRC on 0300 2003410. You must be a Company Director and they will ask various security questions, including your Registered Office address. They are unable to issue this over the phone, but will be able to help you retrieve your Lost UTR.

You’ll need to file Dormant Company Accounts at Companies House every year, unfortunately this annual process cannot be avoided and missing this filing deadline will result in Penalties. I’ve created a step by step guide to completing and filing Dormant Accounts at Companies House for you to keep.

Just enter your email address below and I will send you this along with the sample letter I regularly use in line with HMRC advice to advise them of Dormant Company Status.

Next: What Happens If Your Dormant Company Starts to Trade