Filing & Compliance · Section 147 · Tax Year 2026-2027
Advance Tax Installment Calculator
Split your estimated annual tax into four quarterly installments with their statutory due dates.
Step by step
How installments are worked out
Estimate your annual tax
Your projected total income tax liability for the year.
Subtract what's already paid
Any tax already withheld or paid reduces what's left to pay quarterly.
Choose your taxpayer type
Individuals pay by the 15th; companies and AOPs by the 25th (Section 147(5) and (5A)).
See each installment
The remaining tax split evenly across four quarters.
Reading the result
The dates matter more than the split
Dividing the year's tax into four is the easy part. What this is really for is the deadlines: Section 147 requires the tax to arrive during the year it relates to, not when the return is filed.
Miss an installment and the liability does not simply roll forward. Default surcharge runs on the unpaid amount from the date it fell due, so a payment made late is worth less than the same payment made on time, and the gap widens the longer it sits.
The default surcharge calculator shows what that delay costs.
Tax already withheld counts
Advance tax is not paid on top of what has already been collected from you. Deductions made during the year — on salary, on bank profit, on contracts, on imports — reduce what remains payable by installment. Overlooking them is the most common reason a business pays more advance tax than it needed to and waits a year for the difference.
Where this stops
Whether you are required to pay by installments at all depends on your turnover and your last assessed position, and the due dates differ between companies and individuals. This works out the schedule once you know you are in it; it does not decide whether you are.
FAQs
Advance tax installment FAQs
What is Section 147 advance tax?
Section 147 requires certain taxpayers to pay their estimated annual income tax in four quarterly installments during the tax year, rather than as one lump sum after filing.
Who must pay in installments?
Every company and AOP, and any individual whose latest assessed taxable income (excluding salary, dividend, property and certain final-tax income) is Rs 1,000,000 or more — Section 147(1) and (2). The quarterly amount is the latest assessed tax scaled by turnover, less tax already collected in the quarter.
Why do companies and individuals have different due dates?
Section 147(5) gives individuals the 15th of September, December, March and June. Section 147(5A) gives companies and associations of persons the 25th of September, December and March, with the June quarter due on 15 June for everyone. An AOP therefore follows the company dates, not the individual ones.
What if I've already had tax withheld during the year?
Subtract any tax already paid or withheld from your estimated annual liability first — this calculator splits only the net remaining amount across the four installments.
Related tools
Missed an installment?
See the default surcharge that applies on tax paid late.
Open Default Surcharge Calculator