Advance Tax Calculator

Section 208 mandates advance tax from every assessee whose estimated tax liability for the year is ₹10,000 or more, after TDS credit. Senior citizens (60+) without business / capital-gains income are exempt per the first proviso to Section 208.

For non-corporate, non-business income (capital gains / 44ADA), pay 100% by 15 March of the financial year. For business income, pay 15% by 15 June, 45% cumulative by 15 September, 75% cumulative by 15 December and 100% by 15 March of the following year.

If advance tax paid is less than 90% of assessed tax, simple interest at 1% per month (part of month counted full) is charged on the shortfall, from 1 April of the assessment year to the date of actual payment (or date of determination under Section 143(1)/147) under Section 234B.

Each instalment shortfall attracts interest under Section 234C — typically 1% per month for 3 months on the June shortfall, 1% per month for 3 months on September and December shortfalls, and 1% for 1 month on March shortfall. The advance tax calculator surfaces the cumulative 234C interest.

Yes — Section 208 removes the capital-gains exclusion that existed for many years. Entire capital-gains tax due must be paid in the advance-tax instalment immediately following the date of accrual, failing which interest under Sections 234B and 234C is levied on the shortfall.

Use Challan 280 on the e-filing portal (eportal.incometax.gov.in) and select "Advance Tax (100)" as the type. The calculator gives you the amount; pay through net-banking or NEFT to avoid trips to the bank and ensure timely credit.