Computation of profits for SEZ businesses: gross receipts less business expenditure with prescribed depreciation treatment. Profits of SEZ developers and units are computed as gross income from the specified business less business expenditure wholly and exclusively incurred, where gross income includes business receipts and proceeds from disposal of business capital assets (excluding land, goodwill and financial instruments), and business expenditure includes operating costs, finance charges, licence or rental fees actually paid, capital expenditure and pre commencement expenses; depreciation and other allowances are to be given full effect and written down value treated as if depreciation and terminal allowances were claimed.