Bonus shares meaning in simple words: free shares, same value
Bonus shares: extra shares a company gives its shareholders for free. You get more shares, but the company, and your slice of it, stays the same size.

The story
two people, one chai stall
A trader on TV says Sameer Chai should announce a bonus. Sameer turns to Riya.
SameerIf we give everyone free shares, won't they love us?
RiyaFor a day, maybe. Say we do one-for-one. Every shareholder gets one new share for each share they own. Our 5 crore shares become 10 crore.
SameerWhere do the new shares come from?
RiyaFrom our reserves. We move ₹50 crore from reserves into share capital. It's money already inside the company changing columns.
SameerSo your mum's 200 shares become 400.
RiyaAnd the price should roughly halve, from ₹54 to about ₹27. Her ₹10,800 stays about ₹10,800. Same kettle of chai, poured into more cups.
SameerThen why does anyone bother?
RiyaA ₹27 share feels easier to buy than a ₹54 one. And it tells people we're confident the reserves aren't going anywhere.
The grown-up version
same idea, exact words
A bonus issue gives existing shareholders additional fully paid shares in proportion to their holding, without payment. The company capitalises part of its free reserves, securities premium or capital redemption reserve into share capital. It cannot use revaluation reserves, and bonus shares cannot be issued in place of a dividend. Earnings per share for all periods shown are restated for the new share count. Since October 2024, bonus shares are credited the day after the record date and can be traded the day after that (T+2).
Formula
New shares = Shares held × bonus ratio. Adjusted price ≈ Old price × Old shares ÷ New shares.
Which rule asks for itSection 63, Companies Act, 2013; Chapter XI, SEBI (ICDR) Regulations, 2018; Ind AS 33.
Spot it in the wild
a real annual report, a real page

- A 4:1 bonus: four free shares for every share held.
- In the same year it also split each ₹2 share into two ₹1 shares. A split is a different event.
Don't mix it up
the usual confusions
Bonus shares ≠ stock split
A split cuts the face value (₹10 to ₹5) and doubles the shares. A bonus keeps the face value at ₹10 and moves money from reserves to capital. For you, the result looks almost the same.
Bonus shares ≠ dividend
A dividend pays you cash, and the company has less money afterwards. A bonus pays no cash, and the company has exactly as much as before.
Bonus shares ≠ rights issue
In a rights issue you pay for the new shares. Bonus shares are free.
Three quick sips
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Hindi mein
बोनस शेयर
बोनस शेयर वे मुफ़्त अतिरिक्त शेयर हैं जो कंपनी अपने शेयरधारकों को देती है; शेयर बढ़ते हैं, पर कंपनी में आपका हिस्सा उतना ही रहता है।
Sources
- Companies Act, 2013, India Code
- Circular on bonus issue timelines, 16 September 2024, SEBI (via NSE)