Under the normal provisions of the Income-tax Act, taxable business income will be computed after allowing deduction in respect of expenses which are deductible as per the Income-tax Act and after disallowing expenses which are not deductible as per the Income-tax Act.
In case of a person who is opting for the presumptive taxation scheme of sections 44AE, the provisions of allowance/disallowances as provided under the Income-tax Act, will not apply and income computed at the presumptive rate of Rs. 7,500 per goods vehicle per month will be the final income and no further expenses will be allowed or disallowed.
However, in case of a taxpayer, being a partnership firm, opting for the presumptive taxation scheme, from the income computed at the rate of Rs. 7,500 per goods vehicle per month, further deduction can be claimed on account of remuneration and interest paid to partners (computed as per the Income-tax Act).
While computing income as per the provisions of sections 44AE, separate deduction on account of depreciation is not available, however, the written down value of any asset used in such business shall be calculated as if depreciation as per section 32 is claimed and has been actually allowed.