Advance Tax Calculator

Quarterly advance tax instalments and the interest payable under Sections 234B and 234C if you underpay.

Formula

15% by 15 Jun, 45% by 15 Sep, 75% by 15 Dec, 100% by 15 Mar

Tips

Advance tax applies once net liability after TDS reaches ₹10,000 for the year.
Section 234C charges 1% a month for shortfalls at each instalment; Section 234B charges 1% a month where less than 90% is paid by year end.
Senior citizens without business income are exempt from advance tax entirely.
Presumptive taxpayers under 44AD or 44ADA pay the whole amount in a single instalment by 15 March.

Frequently asked questions

What if my income is unpredictable?

Estimate conservatively and revise at each instalment — the schedule is cumulative, so an increased estimate can be caught up at the next date. Capital gains are treated specially: the instalment falls due only from the quarter in which the gain arises.