Depreciation as per income tax act and company act is different.. Hence DTA DTL will arise.. In co act expenses is allowed on accrual basis while in IT act on payment basis... Hence DTA DTL will arise
Plz refer section 43B of it act... Deduction allowed only on payment like bonus, interest on loan, gratuity,.... And any provision not allowed in it act.. Like provisions for doubtful debts... While in company act allowed... Hence DTA DTL arises
Just take section 35...preliminary expenses in it act 100% allowed while in accounting in 5 yrs... Timing difference will arise... Much more examples exist... Where difference between it act and accounting exist... Timing differences arises..