Advance tax is payable if you have income sources other than salary. This includes rent, capitals gains, lottery winning, and more. To calculate advance tax, apply the income tax slab rate applicable in the financial year. Follow the steps below:Estimate the income from capital gains, professional income, rent, and other incomeAdd income from salary to the above total to arrive at gross taxable incomeApply the income tax slab applicable to youDeduct the TDS as per the TDS slabYou are only liable to pay advance tax if your tax liability exceeds Rs. 10,000 after deducting TDS.