Advance Tax Calculator for FY 2026-27
Estimate your quarterly advance tax deposit schedule and avoid penal interest under Sections 234B and 234C. Enter your expected income and the TDS already credited, and the calculator returns each instalment with its due date.
Expected income for FY 2026-27
Your instalment schedule
| Due date | Cumulative | Pay this time |
|---|---|---|
| 15 June 2026 | 15% | ₹1,992 |
| 15 September 2026 | 45% | ₹3,984 |
| 15 December 2026 | 75% | ₹3,984 |
| 15 March 2027 | 100% | ₹3,320 |
Advance tax paid so far is under 90% of the liability. Section 234B interest starts at roughly ₹133 per month from 1 April 2027 until the balance of ₹13,280 is cleared.
Estimates only. Capital gains entered here are taxed at slab rates; equity gains taxed at 20% or 12.5% are not covered.
How to use the advance tax calculator
Estimate your annual income
Add salary, business or professional income, rent, interest and capital gains you expect for the whole financial year.
Enter TDS already credited
Pull the figure from Form 26AS or the AIS. Advance tax applies only to the liability that TDS does not already cover.
Pay by each due date
Follow the instalment schedule shown. Paying the cumulative percentage on or before each date keeps Section 234C interest at zero.
Advance tax due dates and interest rules
| Due date | Cumulative advance tax | Interest if short |
|---|---|---|
| 15 June 2026 | 15% | 1% for 3 months (no charge if 12% paid) |
| 15 September 2026 | 45% | 1% for 3 months (no charge if 36% paid) |
| 15 December 2026 | 75% | 1% for 3 months |
| 15 March 2027 | 100% | 1% for 1 month |
Section 234B adds a further 1% per month from 1 April 2027 until payment, wherever total advance tax falls below 90% of the assessed liability. See the advance tax guide for the challan walk-through.
Advance tax FAQs
Who has to pay advance tax?+
Anyone whose total tax liability after TDS and TCS credit is Rs 10,000 or more in a financial year. Resident senior citizens aged 60 or above with no income from business or profession are exempt, however much they owe.
What are the advance tax due dates for FY 2026-27?+
15 June 2026 for 15% of the liability, 15 September 2026 for 45% cumulative, 15 December 2026 for 75% cumulative, and 15 March 2027 for the full 100%.
How is interest under Section 234C calculated?+
It runs at 1% per month on the shortfall in each instalment: three months for the first three instalments and one month for the March instalment. A safe harbour applies at the June and September dates, where paying at least 12% and 36% respectively avoids the charge.
What is the difference between Section 234B and 234C?+
Section 234C penalises deferment within the year, instalment by instalment. Section 234B charges 1% per month from 1 April of the assessment year until the tax is paid, when total advance tax paid falls below 90% of the assessed liability.
How does advance tax work under the presumptive scheme?+
Taxpayers under Section 44AD or 44ADA pay the whole liability in one instalment by 15 March. The June, September and December dates do not apply to them.
Can I adjust TDS already deducted against advance tax?+
Yes. Advance tax is computed on the net liability after subtracting TDS, TCS and any foreign tax credit. Check Form 26AS and the AIS before you compute so nothing is double-counted.
Never Miss an Advance Tax Date Again
Tax Garden tracks every instalment date for you, computes the deposit from live books, and generates the challan so nothing slips past 15 March.