<h1>ICDS IV: Revenue Recognition Rules for Sales, Services, Interest, and More Effective April 1, 2015.</h1> The Income Computation Disclosure Standards (ICDS) IV on Revenue Recognition, issued by the Central Board of Direct Taxes (CBDT), applies to all assessees using the mercantile accounting system from April 1, 2015. It covers income from ordinary activities such as sales, services, interest, royalties, and dividends. Revenue from goods is recognized upon transfer of significant ownership risks and rewards. For services, the percentage completion method is used. Interest is calculated on a time basis, and royalties are recognized per agreement terms. Disclosures include revenue not recognized due to collection uncertainty and details on service revenue recognition.