Income Computation and Disclosure Standards standardise accounting policies for taxable income computation and limit application to tax computation. Income Computation and Disclosure Standards (ICDS) are statutory standards issued to harmonise accounting policies for the computation of taxable income, covering topics including accounting policies, inventory valuation, construction contracts, revenue recognition, tangible fixed assets, foreign exchange effects, government grants, securities, borrowing costs, and provisions and contingent liabilities. ICDS apply only for computing taxable income and do not regulate the maintenance of books of account.