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Advance Tax Calculator FY 2025-26

Estimate your quarterly advance tax liabilities for Financial Year 2025-26. Avoid interest penalties under Section 234B and 234C by planning your tax deposits before statutory deadlines.

Last Updated: June 2026Verified By: GSTWaala Editorial Team
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Standard deductions (₹75k for New, ₹50k for Old) are auto-applied to compute net taxable values.

How to Use the Advance Tax Calculator FY 2025-26

  1. Enter your estimated Annual Gross Income before deductions in the input field.
  2. Select your Tax Regime (New Regime or Old Regime) and your Age Group.
  3. Enter the TDS already deducted or expected to be deducted by your employers or clients in the current year.
  4. Enter any advance tax amount you have already paid in the current year.
  5. Review the final net tax payable and the detailed 4-installment schedule on the right-hand panel.

Mathematical Formula & Calculations

Advance Tax Installment Rules:

  • On or Before 15th June: Pay cumulative 15% of net estimated tax.
  • On or Before 15th September: Pay cumulative 45% of net estimated tax (net 30% more).
  • On or Before 15th December: Pay cumulative 75% of net estimated tax (net 30% more).
  • On or Before 15th March: Pay cumulative 100% of net estimated tax (net 25% more).

Frequently Asked Questions

Any taxpayer (salaried, self-employed, businessman) whose estimated net tax liability (after subtracting TDS credits) for the financial year exceeds ₹10,000 is mandatorily required to pay tax in advance through quarterly installments. Senior citizens (aged 60 years or above) who do not run a business or profession are exempt from paying advance tax.
Advance tax must be paid in four installments: 15% on or before June 15th; 45% on or before September 15th; 75% on or before December 15th; and 100% on or before March 15th of the financial year.
If you fail to pay advance tax or pay less than 90% of your assessed tax, interest is levied at 1% per month on the unpaid amount under Section 234B. Additionally, deferment in quarterly installments attracts interest at 1% per month for 3 months under Section 234C.
Any tax paid on or before March 31st of the financial year is treated as advance tax. However, missing the March 15th deadline attracts 1% interest penalty under Section 234C for the final installment delay.

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Compliance Note

All calculations are updated to reflect the tax codes, slabs, and deductions in effect for Financial Year 2025-26 (Assessment Year 2026-27). This tool runs entirely client-side; no data is transmitted or stored on our servers.
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