Have youe seen this ?
Simple Income Tax Calculator 2017-18
Please look at the ‘CALCULATION OF EXEMPTION OF HOUSE RENT ALLOWANCE U/S 10(13 A) OF
THE INCOME TAX ACT, 1961′ segment in this excel utility. We know that BASIC PAY = BAND PAY + GRADE PAY but there is no inclusion of Grade Pay. I am confused . Can anyone help me providing the details whether it should be calculated with or without Grade Pay ?