IPO Return & Listing Gain Calculator

Estimate your profit from an IPO in seconds. Enter the issue price, the GMP or listing price, and how many lots you applied for. The calculator shows your listing gain, the 20% short-term capital gains (STCG) tax if you sell on listing day, and your net profit after tax.

Expected listing price = issue price + GMP = ₹671. GMP is an unofficial grey-market estimate and the actual listing price can differ.

Total shares
26
Amount invested
₹14,924
Value at listing
₹17,446
Listing gain
+16.9%
Gross profit
+₹2,522
STCG tax (20% + 4% cess)
₹525
Net profit after tax
+₹1,997
Profit per lot (pre-tax)
+₹2,522

Assumes shares are sold on or near listing day, so the gain is short-term and taxed at 20% under Section 111A (plus 4% cess) — the rate applicable to listed equity after 23 July 2024. Held for more than 12 months, gains would instead be long-term (12.5% over the ₹1.25 lakh annual exemption). This is an educational estimate, not tax or investment advice; brokerage, STT and other charges are not included.

Frequently asked questions

How is IPO listing gain calculated?
Listing gain is the difference between the listing price and the issue price, as a percentage of the issue price. For example, an issue price of ₹419 that lists at ₹574 is a listing gain of (574 − 419) / 419 = 37%. Your rupee profit is that difference multiplied by the number of shares allotted (lots × shares per lot).
Do I pay tax if I sell IPO shares on listing day?
Yes. Shares sold on or near listing day are held for less than 12 months, so the gain is a short-term capital gain (STCG) on listed equity, taxed at 20% under Section 111A (plus 4% cess) for sales on or after 23 July 2024. If you instead hold for more than 12 months, the gain becomes long-term and is taxed at 12.5% above a ₹1.25 lakh annual exemption.
Can I estimate my IPO profit from GMP before listing?
You can estimate it: expected listing price ≈ issue price + GMP (grey market premium). But GMP is unofficial and can change sharply before listing, so treat the estimate as indicative only. This calculator lets you switch between a GMP-based estimate and an actual listing price.
Does this calculator include brokerage and other charges?
No. It shows gross profit, STCG tax, and net profit after tax. Brokerage, STT, exchange and DP charges are not included and will slightly reduce your actual net gain.

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Related: IPO GMP today · STCG calculator · LTCG calculator · Upcoming IPOs