Advance Tax Calculator
Find out your quarterly advance tax installments for FY 2025-26 and the interest under Sections 234B and 234C if you miss them. Enter your tax directly or estimate it from your taxable income under the new regime.
Advance tax due dates & installments (FY 2025-26)
| Due date | Cumulative advance tax payable |
|---|---|
| On or before 15 June 2025 | 15% |
| On or before 15 September 2025 | 45% |
| On or before 15 December 2025 | 75% |
| On or before 15 March 2026 | 100% |
Advance tax is payable if your total tax liability for the year (after TDS) is ₹10,000 or more. Senior citizens (60+) without business income are exempt. Taxpayers under presumptive taxation (Sections 44AD / 44ADA) pay the entire amount in a single installment by 15 March.
Interest under Sections 234B and 234C
Section 234C charges 1% per month for short payment of any installment — for 3 months on the first three installments and 1 month on the last. No 234C applies to the June and September installments if you have paid at least 12% and 36% of the tax respectively. Section 234B charges 1% per month from 1 April of the assessment year if your total advance tax paid is less than 90% of the assessed tax. Use the interest section in the calculator to estimate both.
Worked example
If your tax after TDS is ₹1,50,000, your installments are: ₹22,500 by 15 June (15%), a cumulative ₹67,500 by 15 September (45%), ₹1,12,500 by 15 December (75%) and the full ₹1,50,000 by 15 March. Pay on time and there is no 234B or 234C interest.
Good to know
Who must pay?
Salaried employees whose TDS covers their tax usually need not pay advance tax. It mainly affects freelancers, professionals, business owners, and anyone with large capital gains, interest or rental income.
Capital gains & lottery
Advance tax on capital gains or lottery income that could not be foreseen is payable in the remaining installments once the income arises, avoiding 234C on that part.
How to pay
Pay online via the Income Tax e-filing portal or your bank under challan ITNS 280, selecting “Advance Tax (100)” for the relevant assessment year.
Related tools
See our Tax Regime Calculator, Capital Gains Calculator and TDS Tool.
Frequently asked questions
Who has to pay advance tax?
Anyone whose total tax liability for the year, after reducing TDS and TCS, is ₹10,000 or more must pay advance tax. Resident senior citizens aged 60 or above without business or professional income are exempt.
What are the advance tax due dates for FY 2025-26?
15 June 2025 (15%), 15 September 2025 (45% cumulative), 15 December 2025 (75% cumulative) and 15 March 2026 (100%).
What is the difference between 234B and 234C?
Section 234C is interest for deferring or short-paying individual installments during the year. Section 234B is interest for paying less than 90% of your total tax as advance tax, charged from 1 April of the assessment year until you pay.
How much is the interest?
Both Section 234B and 234C charge simple interest at 1% per month or part of a month on the shortfall.
Do presumptive taxpayers pay in installments?
No. Taxpayers under Sections 44AD or 44ADA pay their entire advance tax in one installment on or before 15 March.
Is advance tax different under the new and old regimes?
The due dates and rules are the same. Only the underlying tax liability changes with the regime, which is why this tool lets you enter your tax directly or estimate it under the new regime.
Disclaimer: This calculator is for general information and educational purposes only and does not constitute tax advice. The income estimate uses the new-regime slabs and 4% cess and ignores surcharge. Verify your figures or consult a qualified tax professional before paying. © ClearTax Advisors.