=== PAGE 1 === HM Revenue Company Tax Return & Customs CT600 (2025) Version 3 for accounting periods starting on or after 1 April 2015 Your Company Tax Return If we send the company a 'Notice' to deliver a Company Tax Return it has to comply by the filing date or we charge a penalty, even if there is no tax to pay. A return includes a Company Tax Return form, any supplementary pages, accounts, computations and any relevant information. The CT600 Guide tells you how the return must be formatted and delivered. It contains general information you may need to deliver your return, links to more detailed advice and box-by-box guidance for this form and the supplementary pages. The forms in the CT600 series set out the information we need and provide a standard format for calculations. Company information 1 Company name Dragon Air Conditioning (Service) Limited 2 Company registration number 0 7 4 0 5 4 1 2 3 Tax reference 4 8 2 3 5 2 4 8 0 1 4 Type of company 0 Northern Ireland (NI) Put an 'X' in the appropriate boxes below 5 NI trading activity 6 SME 7 NI employer 8 Special