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Free Calculator

Advance Tax Calculator FY 2026-27

Calculate your advance tax instalments. See due dates, amounts, and 234C interest if missed. For freelancers, business owners, and salaried with other income.

Your inputs are processed securely and never stored. Free to use, no account required.

Need help with advance tax?

Ordinary taxpayer — four instalments

1st Instalment

15%

15 Jun 2026

2nd Instalment

45%

15 Sep 2026

3rd Instalment

75%

15 Dec 2026

4th Instalment

100%

15 Mar 2027

Section 44AD / 44ADA — one instalment

100% by 15 Mar 2027

If you declare presumptive business income under Section 44AD or presumptive professional income under Section 44ADA, the four dates above do not apply — the whole advance tax is due in a single instalment by 15 March, and Section 234C runs for one month on any shortfall. Section 44AE does not get this concession.

Advance tax calculations are based on estimated income and standard slab rates. Surcharge on income above ₹50L is included at standard rates (marginal relief on surcharge is simplified). Old-regime figures assume only the standard deduction — your actual liability is lower if you claim 80C/80D/HRA and other deductions. Consult a tax professional for exact advance tax computation. RushTax is a freelance consulting service — not a CA firm.

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