If your company is no longer engaged in business activities and does not generate any other sources of income, it is necessary to submit Dormant Company Accounts to Companies House. However, it is important to note that this filing alone does not exempt you from the obligation to inform HMRC.

Therefore, you must inform HMRC that your company is dormant. This will exempt you from the requirement to submit a company tax return or pay corporation tax. Nevertheless, as long as your company remains in existence, even if it is no longer trading, you are still required to submit annual accounts.