Corporate Actions in Indian Markets: Dividends, Splits, Bonuses and Tax

What Corporate Actions Actually Do To Your Holdings

A corporate action is any decision by a listed company that changes its shares, its share count, or the cash that flows to you as a holder. The common ones on NSE and BSE are dividends, bonus issues, stock splits, rights issues, buybacks, and mergers or demergers. Each one either puts cash in your account, changes how many shares you own, or changes the price per share. The total value you hold rarely jumps because of the action itself. What changes is the structure, and that structure has real consequences for your taxes, your option positions, and your cost of acquisition.

The single date that decides whether you benefit is the ex-date. If you own the stock at the close of the ex-date, you are entitled to the action. India moved to a T+1 settlement cycle for all listed stocks in January 2023, which means a trade settles one working day after execution. Because of this, the exchange now usually sets the ex-date and the record date on the same day. Buy on or after the ex-date and you do not get the dividend or bonus, because the seller who held through the previous day keeps it.

Traders sometimes assume a price drop on the ex-date is a buying signal. It is not a free gift. When a stock goes ex-dividend, the exchange and the market mechanically mark the price down by roughly the dividend amount, because that cash has left the company. The same logic applies, in a much larger way, to splits and bonuses where the quoted price can fall by half or more overnight while your number of shares rises to match.

The Three Categories: Mandatory, Voluntary, And Optional

It helps to sort corporate actions by how much choice you have. Mandatory actions apply automatically to every holder and need no action from you. A cash dividend, a stock split, a bonus issue, and most mergers fall here. The shares or cash simply appear in your demat or bank account on the payout date.

Voluntary actions require you to opt in. A buyback through the tender route and a rights issue are the clearest examples. You choose whether to tender your shares or to subscribe to new shares, and if you do nothing you keep your existing position unchanged but may forgo the benefit. Mandatory with options actions happen no matter what, but let you pick how you receive the benefit, for example a scheme that offers cash or shares of a demerged entity.

• Mandatory: cash dividend, bonus issue, stock split, face value change, most mergers. No action needed from you.
• Voluntary: tender buyback, rights issue, open offer. You must apply or accept within the window.
• Mandatory with options: certain demergers and schemes of arrangement where you elect cash or stock.

Dividends And The Big Tax Change You Must Not Get Wrong

This is the area where most old articles, and many traders, are still wrong. The Rs 10 lakh dividend exemption no longer exists. Until FY 2019-20, companies paid Dividend Distribution Tax (DDT) and dividends were largely tax free in your hands, while Section 115BBDA charged an extra 10% only on dividend income above Rs 10 lakh. The Finance Act 2020 abolished DDT and repealed Section 115BBDA with effect from 1 April 2020, that is from FY 2020-21 onward.

Under the current rules, every rupee of dividend is taxable in your hands at your personal income tax slab rate, with no Rs 10 lakh threshold and no separate flat surcharge on dividends. There is no exempt slab. If you are in the 30% bracket, your dividend is effectively taxed at 30% plus applicable cess. The company deducts TDS at 10% on dividends once your total dividend from that company crosses Rs 5,000 in a financial year (20% if you have not linked PAN). You then claim that TDS as credit when you file your return, and pay any balance based on your actual slab.

A Real Worked Example: Reliance Dividend And TDS

Numbers below are illustrative and rounded for teaching. They are not a forecast or a promise of any return. Suppose you hold 1,000 shares of Reliance Industries (RELIANCE) bought at around Rs 1,250 each, and the company declares a final dividend of Rs 10 per share. To be eligible you must hold the shares at the close of the ex-date. Your gross dividend is 1,000 x Rs 10 = Rs 10,000.

Because Rs 10,000 from a single company crosses the Rs 5,000 TDS threshold, Reliance deducts 10% TDS = Rs 1,000, and credits Rs 9,000 to your bank account. That Rs 1,000 is not your final tax. It is an advance. If your income puts you in the 30% slab, your actual tax on the Rs 10,000 dividend is Rs 3,000 plus 4% cess, roughly Rs 3,120. You already paid Rs 1,000 via TDS, so you settle the remaining roughly Rs 2,120 when you file. If you were in a lower slab, say 5%, your tax would be about Rs 520 and you would claim a refund of the excess TDS.

On the same ex-date, the stock typically opens about Rs 10 lower to account for the cash leaving the company, so the dividend is not money created from nothing. It is part of the value you already owned, moved from share price into your bank account, and now taxed at your slab. This is why long-term investors weigh the after-tax yield, not the headline dividend.

Bonus Issues And Splits: Same Value, Different Cost Per Share

A bonus issue gives you extra shares free, funded from the company reserves. In a 1:1 bonus you get one new share for every share held. A stock split cuts the face value, say from Rs 10 to Rs 2, so one share becomes five. In both cases your total holding value is unchanged on the ex-date, but your per-share price and per-share cost drop. Neither event is taxable income at the time it happens.

The tax bite comes later, when you sell, and the cost treatment differs in an important way. For a split, your original cost is spread across the larger number of shares. If you bought 100 shares at Rs 500 (cost Rs 50,000) and a 5:1 split gives you 500 shares, your cost per share becomes Rs 100, total cost still Rs 50,000. For a bonus, the bonus shares are treated as acquired at zero cost for capital gains, and their holding period starts from the date of allotment, not from when you bought the original shares. That zero cost can inflate your taxable gain when you sell the bonus shares.

What Splits And Bonuses Do To F&O Contracts

If you trade futures and options, a split or bonus in an F&O stock is not just an equity event. The exchange adjusts the strike prices and the lot size so existing contracts keep the same economic value. For a 1:1 bonus the adjustment factor is 2, so strikes are halved and the lot quantity is doubled. The contract value before and after stays the same, you just hold a different shape of the same exposure.

For index derivatives the well known lot sizes are Nifty 75, Bank Nifty 15, FinNifty 25, and Sensex 10. Indices do not have splits or bonuses, but their lot sizes are revised periodically by the exchange, which is its own kind of contract adjustment you must watch before expiry. Stock F&O lot sizes, by contrast, are revised directly when the underlying does a split or bonus.

Worked example, illustrative only. Say an F&O stock with a lot size of 1,000 trades at Rs 600 and you are long one futures lot, so your contract value is Rs 6,00,000. The company does a 1:1 bonus. After the ex-date the futures price is adjusted to about Rs 300 and your lot size becomes 2,000. Your contract value is still 2,000 x Rs 300 = Rs 6,00,000. Your profit or loss per point did not double in real terms, the maths simply rescaled. If you held a 620 call before the bonus, it becomes roughly a 310 strike call after the adjustment, with the premium and lot adjusted to keep the same value.

Buybacks And Rights Issues: The Voluntary Decisions

A buyback is the company repurchasing its own shares, usually because management believes the stock is undervalued or wants to return surplus cash. Buybacks reduce the share count, which can lift earnings per share. There was a major tax change here too. Earlier the company paid buyback tax and your receipt was largely tax free. From 1 October 2024, buyback proceeds are taxed in the hands of the shareholder as deemed dividend at your slab rate, and the cost of the shares tendered is treated as a capital loss you can set off. So a buyback is no longer the tax-light exit it once was.

A rights issue offers existing holders the chance to buy new shares at a discount to market, in proportion to their holding, for example 1 new share for every 5 held at a set price. You can subscribe, partly subscribe, or let it lapse. Rights entitlements (RE) themselves now trade on the exchange, so if you do not want to subscribe you can sell your entitlement instead of letting it expire worthless. If you neither subscribe nor sell, your existing stake is diluted relative to those who did.

• Buyback (from 1 Oct 2024): proceeds taxed as deemed dividend at your slab; the cost of tendered shares becomes a capital loss.
• Rights issue: subscribe at the offer price, sell your rights entitlement on the exchange, or let it lapse and accept dilution.
• Open offer (in a takeover): an acquirer offers to buy your shares at a stated price; you choose whether to tender.

Capital Gains Tax When You Finally Sell

Corporate actions do not create capital gains by themselves, but they shape the gain you book when you sell. For listed equity held over 12 months, long-term capital gains (LTCG) above Rs 1.25 lakh in a financial year are taxed at 12.5% without indexation. Held 12 months or less, short-term capital gains (STCG) are taxed at 20%. These rates apply after the Budget 2024 changes that took effect on 23 July 2024.

This is where the bonus zero-cost rule bites. If a 1:1 bonus doubled your shares and you later sell the bonus shares, their cost is treated as nil, so almost the entire sale value of those bonus shares is a gain. The holding period of the bonus shares runs from allotment, so selling them within 12 months of allotment makes them short-term and taxes them at 20%, even if your original shares are long-term. Plan the sale of bonus shares around their own clock, not your original purchase date.

On top of capital gains, every sale of listed equity attracts Securities Transaction Tax (STT), currently 0.1% on both buy and sell for delivery trades, plus brokerage, exchange fees and 18% GST on those charges. These are small per trade but add up, and they are what make frequent churning around corporate actions less profitable than it looks on paper.

How Corporate Actions Are Taxed As Business Income For Active Traders

If you trade futures and options actively, your F&O profit and loss is treated as business income, not capital gains, and is taxed at your slab rate. A split or bonus adjustment on an F&O position does not change this. The realised profit or loss after the contract is rescaled still flows into your business income. This also means F&O traders can claim genuine expenses such as brokerage, internet, and data costs against that income, and can carry forward F&O losses, subject to the rules and audit thresholds.

Dividends you receive on stocks you also trade in F&O are still taxed separately as dividend income at slab rate, distinct from your trading P&L. Keep the two streams clearly separated in your records, because mixing dividend income with trading turnover is a common filing error that invites scrutiny.

SEBI Disclosure Rules And Where To Verify Everything

SEBI requires listed companies to disclose corporate actions promptly through stock exchange filings under the Listing Obligations and Disclosure Requirements (LODR) framework, so that no group of shareholders gets an information advantage. Boards approve the action, the company files it with NSE and BSE, the exchange sets the record and ex-dates, and depositories credit the entitlements. This chain is what makes the ex-date legally meaningful.

Never act on a corporate action from a forwarded message or a stale blog. Verify the type of action, the exact ex-date and record date, the ratio, and for F&O the adjustment factor and new lot size, on the official NSE or BSE corporate actions page and the company filing. Rules and rates also change, as the dividend, buyback, and capital gains changes above show, so confirm the current position before you trade or file.

• Verify ex-date and record date on the NSE or BSE corporate actions page before buying for eligibility.
• For F&O stocks, read the exchange circular for the adjustment factor and revised lot size.
• Keep contract notes and demat statements that show split, bonus, and buyback dates for accurate cost and gain calculation.
• Recheck dividend and capital gains rules each financial year, since they change with the Budget.

Common Mistakes Traders Make Around Corporate Actions

The most expensive mistake is misreading the ex-date and buying on or after it expecting a dividend or bonus, then being surprised when it never arrives. Under T+1 the window is tighter than the old T+2 era, so you must hold by the close of the day before the ex-date. The second mistake is treating the ex-date price drop as alpha. The drop is mechanical, not a discount.

The third, and the one this guide exists to correct, is relying on the dead Rs 10 lakh dividend exemption. Plan your tax assuming dividends are fully taxable at your slab from rupee one. The fourth is ignoring the zero-cost rule on bonus shares and underestimating the capital gain on sale. The fifth, for option traders, is failing to re-read your strikes and lot size after an adjustment, which can lead to sizing errors and unexpected margin calls.

Sources and Further Reading

For authoritative data and further reading on this topic, refer to SEBI (Securities and Exchange Board of India), NSE India, BSE India and Income Tax Department. Always confirm current rules, rates and contract specifications on the official source before you trade.