Covered Call Calculator

This covered call calculator estimates premium (payment for selling the call), breakeven (the no-profit, no-loss share price) and capped profit for calls sold against matching shares you own. Enter the share cost, current share price, call strike, premium and share quantity. Results are before charges and tax. The form does not check contract lots, ownership, margin or delivery eligibility, and its annualised yield is a scaled scenario rather than a promised return.

What makes the call covered?

A covered call combines owned shares with a call sold against the corresponding quantity of the same underlying. The call buyer’s right to buy at the strike limits the seller’s upside, while the shares can still lose value. Premium collected gives only a limited cushion.

Our covered call definition explains the position. The shares and short option must actually match. Holding a stock portfolio does not automatically cover an index call, and the Stock/Index Price label in this form does not validate such a hedge.

As checked on 15 Oct 2026, NSE describes individual-security options as European style and physically settled. That makes contract terms and delivery arrangements relevant to an Indian stock covered call. American-style early-exercise examples from US educational material should not be applied directly to NSE stock options.

Purchase price and current price do different jobs

• Stock/Index Price is used as the denominator for the displayed Premium Yield and Downside Protection percentage. For this share-based model, enter the current price of the stock.
• Your Purchase Price is the stock cost per share. It drives Max Profit and Breakeven.
• Call Strike Price is the per-share price at which the shares would be sold in the assigned outcome.
• Call Premium is premium per share, rather than the total option credit.
• Quantity (Shares) is the total underlying-share quantity. The form does not multiply a lot count for you.
• Days to Expiry supplies the length used to scale the premium yield.
• Expected Dividend is an assumed amount per share. The tool adds it without checking dates or entitlement.

The formula printed above suggests a purchase-price yield base. The working Premium Yield calculation uses the current stock price. Keep that difference in mind when comparing it with a broker report based on original cost or net cash invested.

Worked example with no dividend

For this made-up example, enter current stock price ₹2,500, purchase price ₹2,400, call strike ₹2,600, premium ₹50, Days to Expiry 30, Quantity 100 and Expected Dividend ₹0. The quantity is an arbitrary educational assumption, not a verified exchange contract lot.

If Assigned Value is the gross amount received for selling the shares at the strike. It is not profit. Subtracting the share cost and adding the premium produces the separate capped-profit result.

The Annualized Yield output scales only premium yield. It is neither the total return if assigned nor a compounded forecast. Repeating the same premium and holding period throughout a year is an assumption the calculator cannot establish.

If-called and if-unchanged returns

Two return figures are commonly used for a covered call. The if-unchanged return assumes the share ends the period at today's price and the call expires worthless. The if-called return assumes the share ends at or above the strike and the shares are sold at the strike. Both are expiry-day arithmetic, before charges and tax.

• If-unchanged return = (premium + current price − purchase price) ÷ purchase price
• If-called return = (strike + premium − purchase price) ÷ purchase price

Using the made-up numbers from the table above (purchase ₹2,400, current ₹2,500, strike ₹2,600, premium ₹50), the if-unchanged gain is ₹150 per share and the if-called gain is ₹250 per share. Divided by the ₹2,400 cost, that is 6.25% and 10.42%. This calculator does not show these two percentages. It shows Max Profit in rupees (the if-called amount) and a premium yield based on current price. Work the percentages out by hand with the Max Profit and Total Premium cards.

Read the expiry outcomes together

• Above the strike at expiry, further stock gains are offset by the short call’s growing obligation, so the combined payoff is capped.
• Below the strike but above breakeven, the combined position can have a gross gain relative to the entered purchase price.
• Below breakeven, the premium cushion is exhausted and the combined position has a loss.
• If the shares lose most of their value, the premium does not provide a floor under the stock.

These are expiry payoff relationships for a matched position held as assumed. Selling or buying back either part before expiry introduces execution prices that this form does not request. It also does not subtract charges, taxes or financing costs.

The covered call and cash-secured put comparison discusses a related payoff. A long-call replacement for shares is a separate structure, with its own expiry and valuation limitations.

Annualising a covered call return

Annualising scales a single-period return to a year so that trades with different expiries can be compared. The simple method used by this tool is: premium yield × 365 ÷ days to expiry. With a yield of 2% over 30 days that gives 24.33%, as in the table above.

Using the premium divided by the ₹2,400 purchase price instead gives 2.08% over 30 days, which scales to 25.35% (50 ÷ 2,400 × 100 × 365 ÷ 30). The two differ only because the base is different, so always state which base you used.

• Annualising assumes you can sell a call with the same premium every period. Premiums change with volatility and price.
• It ignores the chance of being called away, after which you no longer hold the shares.
• It ignores charges and tax, which take a larger share of small premiums.
• A high annualised number from a short expiry is arithmetic, not a forecast.

Dividends, delivery and quantities need their own checks

Expected Dividend is included in both profit and breakeven as though it is received. Check entitlement and the actual declared amount separately. If the dividend is uncertain, a dividend-inclusive result should stay an assumption rather than an expected cash receipt.

Confirm the contract’s current underlying quantity and the shares available for delivery. This form cannot establish that pledged, sold or unavailable shares satisfy a settlement obligation. It provides no broker-specific margin estimate.

For US American-style stock calls, early assignment can matter; for NSE’s European-style stock options, exercise follows the applicable expiry terms. Keep those market conventions separate when reading a provider’s examples.

A risk/reward calculation can compare an entered profit and loss plan, but it does not change the covered call’s remaining share downside.

Covered calls with Indian stock lots and pledged shares

On NSE, stock options trade in fixed lots, so a covered call needs shares equal to the lot, or a multiple of it. The lot is the number of shares in one contract. As an example, NSE's lot list shows 500 shares for RELIANCE as of 28 Oct 2026. Lot sizes are revised by the exchange, so check the current NSE lot file before you trade. In this calculator, type the total number of shares yourself in the Quantity field; it does not multiply lots or fill a default.

If the call you sold finishes in the money (the share is above the strike), stock options are settled by delivery. In plain terms, you must hand over the shares. They have to be in your demat account and not sold or pledged elsewhere. A broker may close or restrict a position it thinks cannot be delivered, so ask your broker how it handles this.

• Pledged shares. Shares pledged to your broker as collateral are tied up. Check with the broker whether pledged shares count as cover for a short call. This tool cannot check that.
• Nifty. Nifty options are on an index. Holding Nifty-linked shares or an ETF does not match the contract exactly, so the Stock/Index Price field does not prove a hedge.
• Margin. The tool gives no margin figure. Margin rules for a short call differ by broker and position.

For delivery rules, read the physical settlement guide and the pledged shares entry. The covered call vs cash-secured put page compares the two payoffs.

Covered call calculator questions

Rolling a covered call

Rolling means buying back the call you sold and selling a new one, usually with a later expiry, a different strike, or both. The result is a net credit or net debit per share. Costs are charged on both legs, so rolling often is not free.

Made-up example: you sold the ₹2,600 call at ₹50. The share has risen, and you buy that call back at ₹80 and sell a ₹2,700 call at ₹95 for the next expiry. Net credit = 95 − 80 = ₹15 per share. The total premium kept so far is 50 − 80 + 95 = ₹65 per share. To redo the numbers in this calculator, use the new strike, enter the net premium you have actually kept as the Call Premium, and use the days left to the new expiry. The tool does not track rolls, so keep your own record of each leg.

• Rolling up (higher strike) leaves more room for the share to rise, and usually costs a debit or a smaller credit.
• Rolling out (later expiry) usually brings extra premium, but you stay committed for longer.
• Brokerage, STT on the call sold (0.15% of premium since 1 Apr 2026) and other charges apply on every leg.

Covered call vs just holding the stock

A covered call gives up some upside in exchange for a small cushion. The table uses the same made-up trade (cost ₹2,400, strike ₹2,600, premium ₹50, 100 shares) and compares three expiry prices with simply holding the shares.

The cushion is the premium (₹5,000 here). Above the strike the covered call falls behind by the rise above ₹2,600, less the premium. Neither side wins every time, so the comparison only shows the shape of the payoff. The poor man's covered call calculator covers a different structure.

How covered call income is taxed in India

Share gains and option premium are usually taxed under different heads. Profit or loss on the options leg is commonly treated as non-speculative business income, and gains on the shares as capital gains, short term or long term depending on how long you held them. A covered call can therefore create two separate tax lines, and the call premium is not netted against the share cost. Dividends are a third line.

These are general points, not advice. Rules, holding periods and rates change, and your own facts matter, so check with a chartered accountant (CA). For more, see futures vs stocks tax, the F&O income tax calculator and dividend taxation.

Sources

• Options Industry Council: Covered Call (checked 15 Oct 2026).
• NSE: Individual Securities F&O (checked 15 Oct 2026).
• Fidelity: Anatomy of a Covered Call (checked 15 Oct 2026).