Advance tax calculator
The four instalments, the four dates, and what falls due at each.
Advance tax applies when the year's liability (after TDS) is ₹10,000 or more. Missing an instalment attracts interest u/s 234C.
Presumptive-scheme taxpayers (44AD/44ADA) instead pay 100% by 15 March.
Figures are indicative. Thresholds, surcharge and current-year notifications are not fully modelled — confirm edge cases with your CA.
What this calculates
Advance tax is the requirement to pay tax as income is earned rather than at the end of the year. It applies to anyone whose tax liability for the year, after TDS, is ₹10,000 or more — which catches most businesses, most professionals, and salaried people with meaningful income outside salary. Missing an instalment is not a filing default; it is an interest charge under sections 234B and 234C that runs quietly until the return is filed.
How it is worked out
- 1Estimate total income for the year and the tax on it, then subtract the TDS you expect to be deducted.
- 2If the balance is ₹10,000 or more, advance tax applies.
- 3Pay 15% of it by 15 June, 45% cumulatively by 15 September, 75% by 15 December and the whole of it by 15 March.
- 4Each instalment is cumulative, so a shortfall in one is made up in the next — with interest.
- 5Senior citizens without business income are exempt from advance tax entirely.
Worked example
An estimated liability of ₹4,00,000 after TDS.
- By 15 June — 15%
- ₹60,000
- By 15 September — 45% cumulative
- ₹1,80,000
- By 15 December — 75% cumulative
- ₹3,00,000
- By 15 March — 100%
- ₹4,00,000
Common questions
Who has to pay advance tax?
Anyone whose tax liability for the year, after deducting TDS, comes to ₹10,000 or more. Resident senior citizens with no business or professional income are exempt.
What are the advance tax due dates?
15 June, 15 September, 15 December and 15 March, for 15%, 45%, 75% and 100% of the liability cumulatively.
What is the interest for missing an advance tax instalment?
Section 234C charges interest for a shortfall in any individual instalment, and section 234B charges interest where less than 90% of the liability was paid before the year ended. Both run at 1% a month and are separate from the section 234A interest on filing the return late.
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