When to Close a Covered Call Early: The 50–70% Rule

Many beginners assume a covered call must be held until expiration. It doesn't. You can buy to close the short call at any time, paying the current market price to end the obligation. Closing early is often the more disciplined choice — it locks in most of the profit, frees your shares and capital for the next trade, and removes tail risks that cluster near expiration.

The key insight is that option premium decays unevenly. The last portion of a call's value is the slowest to decay and the riskiest to hold, because it is where assignment risk and price sensitivity are highest relative to the remaining reward. That asymmetry is the foundation of the most popular management rule in options income.

A widely taught guideline is to close a short option once you have captured 50% to 70% of the maximum premium. If you sold a call for $2.50, you would buy it back when it is worth roughly $0.75–$1.25 (having captured $1.25–$1.75 of the $2.50).

Why give up the last 30–50%? Because that remaining premium takes disproportionately long to earn and carries disproportionate risk. Consider an illustrative timeline: you might capture 50% of the premium in the first third of the trade's life, then wait the remaining two-thirds — exposed to earnings, gaps, and assignment — to earn the rest. Closing at 50–70% and redeploying into a fresh position often produces better risk-adjusted results than squeezing every dollar from one trade.

Use the covered call calculator to establish your max premium up front, then set your buy-to-close target at 50–70% of it before you ever open the trade.

As expiration approaches, two risks rise sharply for a call near the money. First, gamma increases — the option's sensitivity to the stock price accelerates, so small moves cause large swings in the call's value and in your assignment probability. Second, pin risk emerges when the stock hovers right at the strike into expiration, leaving you uncertain whether you'll be assigned.

Closing a near-the-money call in the final days sidesteps both. If the position is already profitable, taking it off avoids letting a small remaining premium expose you to a large late move. Many disciplined sellers simply refuse to hold near-the-money short calls into the final 7–14 days.

Dividends create a specific reason to close early. When a covered call is in the money and an ex-dividend date is approaching, the option holder may exercise early to capture the dividend — calling your shares away before expiration. This is most likely when the call's remaining time value is less than the dividend amount.

If you want to keep your shares through the dividend (for the payment itself or for tax/holding-period reasons), watch the ex-dividend date on any in-the-money call. Closing or rolling the call before that date removes the early-assignment risk. If you don't mind being assigned, you can let it ride — but you should know the risk is there rather than be surprised by it.

Turn the above into a simple, repeatable playbook you decide before entering any covered call:

• Profit target: buy to close at 50–70% of max premium captured.
• Time stop: close or roll near-the-money calls in the final 7–14 days to avoid gamma and pin risk.
• Dividend rule: for in-the-money calls, close or roll before the ex-dividend date if you want to keep the shares.
• Redeploy plan: know in advance what you'll do with the freed capital — a new call on the same shares, or a different position.

Rules set in advance beat decisions made under pressure. If closing isn't the right move but you still need to adjust, see our guide to rolling covered calls.