The time has come to file income tax return. Salaried professionals may have submitted or are submitting their investment proofs. Income tax return forms have also been notified. Now taxpayers can check which income tax regime is generating less tax for you by doing tax calculations etc., that is, in which regime there is more savings. For this, salaried professionals can get a provisional salary slip from their office, through which they can see their income tax slab and tax calculation.