Advance tax is paid during the year to provide the government with funds for day-to-day operations, rather than at year's end. Now, should you be paying for it? If you have only salaried income, then no, you need not pay advance tax because TDS, which is kind of an advance tax, is already being cut from your salary every month. So you do not have to pay for it. However, if you have any other income, such as income from capital gains, income from house property, other types of interest, or even freelancing income in that case, then just estimate your total income for the year and calculate the taxes on it and pay them in installments before these government given due dates.