Should You Close Your Covered Call Early at 50% Profit or Let It Expire Worthless?

The Short Answer: Close Early at 50% in Most Cases

If you can buy back your covered call for 50% of what you sold it for, closing the trade early is usually the smarter move. You lock in half the maximum profit while eliminating all remaining risk on that position — and you free up your shares to sell a new call and start earning again. Most experienced covered-call traders treat the 50% profit target as a default rule, not a suggestion.

Why the 50% Rule Works: Time Decay Is Not Linear

Options lose value over time because of theta — the daily erosion of time premium. But theta does not eat away at a call's value at a steady pace. It accelerates as expiration approaches. The practical result: the first half of a covered call's profit often arrives faster than you might expect, while the second half can take much longer to materialize.

Consider a 30-day call you sold for $2.00. By day 15, theta may have already reduced that call's value to roughly $1.00 — your 50% target. But grinding from $1.00 down to $0.05 or $0.00 could take the remaining 15 days, all while your shares stay tied up and exposed to new risks. The Options Industry Council (OIC) describes this accelerating decay curve in its free educational materials, and it is the core reason the 50% rule has become a standard practice among retail covered-call sellers.

Worked Example: AAPL Covered Call

Let's make this concrete. Suppose you own 100 shares of Apple (AAPL) trading at $195. You sell one 30-day call at the $200 strike and collect $3.20 in premium, or $320 total.

Your 50% target is $1.60 per share, or $160 to buy the call back. If AAPL stays flat or drifts slightly lower over the next two weeks, theta decay alone could push that call's value down to $1.60. You buy it back for $160, keeping $160 in profit.

Now your shares are free. You immediately sell a new 30-day $200 call (or adjust the strike based on where AAPL is trading) and collect another $3.00 or so. Over a full year, running two or three of these cycles per month can generate significantly more total premium than waiting for every single call to expire worthless.

If you had waited for expiration instead, you would have kept the full $320 — but only once. The early-close approach, repeated consistently, often produces higher annualized income because of the faster cycle time.

When Letting the Call Expire Worthless Makes Sense

The 50% rule is a default, not a law. There are specific situations where waiting for expiration is the better call.

First, if expiration is only two or three days away and the call is already deep out of the money, the cost to buy it back may be just $0.05 to $0.15. At that point, the commission and bid-ask spread may eat up most of the savings. Many traders set a secondary rule: if the call is within five days of expiration and trading below $0.10, just let it expire.

Second, if your broker charges a flat per-contract fee rather than zero-commission, the math on closing a $0.20 call for a $0.15 gain may not pencil out. FINRA requires brokers to disclose all fees clearly, so check your commission schedule before deciding.

Third, if you have no intention of selling another call immediately — maybe you want to sell the shares, or you expect a dividend that changes your calculus — there is less urgency to close early and redeploy.

The Real Risks of Holding to Expiration

Waiting for a covered call to expire worthless is not a passive, risk-free strategy. Several things can go wrong in the final days before expiration.

Earnings surprises and macro events can move a stock sharply. If AAPL jumps from $195 to $205 in the last week before expiration, your $200 call goes from nearly worthless back to $5.00 in intrinsic value. You are now capped at $200 per share and miss the upside move entirely. Had you closed at 50% and sold a new call at a higher strike, you might have participated in some of that gain.

Assignment risk also increases near expiration. The SEC and OIC both note that American-style equity options can be exercised at any time, but early exercise by the call buyer is most likely when the option is deep in the money and near expiration. If you get assigned unexpectedly, you sell your shares at the strike price — which may trigger a taxable event at a time you did not plan for.

Finally, holding to expiration means your capital is tied up longer. That is an opportunity cost. Every day your shares are locked under a near-worthless call is a day you could have been running a new, higher-premium position.

Tax Considerations for US and Canadian Traders

Closing a covered call early creates a short-term capital gain or loss in the year you close it, regardless of how long you held the position open. The IRS treats the premium you collected as income in the tax year the position closes — either by expiration, assignment, or a buy-to-close transaction. If you close early at a profit, that gain is recognized immediately.

For US traders, the IRS Publication 550 covers the tax treatment of options in detail. Covered calls on stock you have held long-term can affect your holding period under the qualified covered call rules. Specifically, if your call is not a "qualified covered call" as defined by the IRS, it can suspend the long-term holding period on your underlying shares. This matters if you are trying to qualify for long-term capital gains rates on the stock itself. Consult a tax professional if this applies to you.

For Canadian traders, the Canada Revenue Agency (CRA) generally treats covered-call premiums as capital gains when the call expires or is closed, though the CRA may treat frequent options trading as business income depending on your activity level. CRA Interpretation Bulletin IT-479R addresses securities transactions and is worth reviewing with a Canadian tax advisor.

How to Build the 50% Rule Into Your Trading Routine

The easiest way to apply this rule consistently is to set a good-till-cancelled (GTC) buy-to-close limit order the moment you sell a covered call. If you sold the AAPL $200 call for $3.20, immediately enter a GTC order to buy it back at $1.60. You do not have to watch the position every day — the order fires automatically when the market hits your target.

Most major retail brokers support GTC limit orders on options. Once the buy-to-close fills, you review the stock price and decide whether to sell a new call right away or wait a day or two for a better entry.

Some traders use a tiered approach: close at 50% if there are more than 10 days left to expiration, but let it ride if expiration is within a week and the call is already far out of the money. That hybrid approach captures most of the benefit of the 50% rule while avoiding unnecessary commissions on tiny buybacks.

The goal is consistency. A mechanical rule removes emotion from the decision and keeps you from second-guessing yourself when the stock starts moving.

What is the 50% profit rule for covered calls?

The 50% profit rule means you buy back your covered call when its price drops to half of what you originally sold it for, locking in half the maximum profit. The logic is that the remaining 50% of profit takes disproportionately longer to earn due to how theta decay accelerates near expiration. Closing early frees your shares to sell a new call sooner, which can increase total annual income. The Options Industry Council (OIC) explains theta decay curves in its free options education resources.

Is it better to let a covered call expire worthless or close it early?

Closing early at 50% profit is usually better because it eliminates remaining risk and lets you redeploy your shares faster. Letting a call expire worthless only makes sense when expiration is just a few days away and the buyback cost is negligible — typically under $0.10 per share. Holding to expiration exposes you to last-minute stock moves, unexpected assignment, and lost opportunity to sell a new call.

Does closing a covered call early trigger taxes?

Yes. When you buy to close a covered call, the IRS recognizes the gain or loss in that tax year. The profit is generally treated as a short-term capital gain. US traders should review IRS Publication 550 for details on qualified covered calls, which can affect the holding period of your underlying shares. Canadian traders should check CRA Interpretation Bulletin IT-479R or consult a tax advisor.

How do I set up an automatic order to close my covered call at 50% profit?

Most retail brokers let you enter a good-till-cancelled (GTC) buy-to-close limit order immediately after you sell a covered call. If you sold a call for $3.00, enter a GTC limit order to buy it back at $1.50. The order will execute automatically when the market price hits your target without you needing to monitor the position daily. Check your broker's options trading platform for the GTC option in the order ticket.

What happens if my covered call goes in the money before I close it?

If the stock rises above your strike price, your call goes in the money and your profit potential on the shares is capped at the strike. You can still buy the call back at a loss to avoid assignment, but you will pay more than you collected in premium. This is why many traders close early at 50% profit — it removes the risk of the stock rallying and turning a winning trade into a capped or losing one.

Can I apply the 50% rule to weekly covered calls as well as monthly ones?

Yes, the 50% rule works on any expiration cycle, including weeklies. With weekly calls, the time frames are compressed — you might hit your 50% target in just two or three days if the stock moves in your favor or theta decays quickly. The same logic applies: once you have half the premium, the risk-reward of holding the remaining days often does not justify the exposure, so closing and reselling is usually the better move.