All option guides
Classify the contract and closing event first18 minute read
How are options taxed?
Learn how U.S. federal taxes can differ when an option is sold, expires, is exercised or assigned, and why Section 1256 and straddle rules matter.
Direct answer
For U.S. federal taxes, an option's result depends on the contract, whether you bought or wrote it, and whether it was sold, expired, exercised, or assigned. A holder who sells a typical equity option recognizes capital gain or loss based on proceeds minus cost, with the holding period usually deciding short-term versus long-term treatment. A writer's expiration or closing result is generally short-term. Exercise or assignment usually moves the premium into the underlying stock transaction. Eligible Section 1256 contracts, straddles, protective puts, employee options, retirement accounts, and non-U.S. taxpayers can follow different rules.
Identify the event before calculating tax
A purchased put or call sold before exercise generally produces capital gain or loss equal to sale proceeds minus option cost. If it expires, its cost becomes a capital loss on the expiration date; the holder's holding period determines whether that result is short-term or long-term.
An option writer does not generally report the opening premium immediately. If the obligation expires, the premium is short-term capital gain. If the writer buys back the option, premium received minus closing cost is generally short-term capital gain or loss. Exercise and assignment are different because the premium attaches to the stock purchase or sale.
Product type can change the entire framework
Ordinary listed equity options are generally handled under the put-and-call rules in IRS Publication 550. Certain nonequity options, including eligible broad-based index options, may instead be Section 1256 contracts. Those contracts are generally marked to market at year-end and their gain or loss receives 60% long-term and 40% short-term treatment regardless of actual holding time.
Do not infer tax status from cash settlement, ticker familiarity, or the word index alone. Verify the exact contract and broker tax classification. Options on an exchange-traded fund are not automatically taxed like options on a broad-based index.
Offset positions can override the simple answer
Straddle rules can defer a loss to the extent of unrecognized gain in an offsetting position and can alter holding periods or require capitalization of carrying costs. A put bought while holding the stock can also invoke protective-put and short-sale rules. Wash-sale, constructive-sale, dealer, trader-election, and qualified covered-call rules may matter in specific portfolios.
Tax-advantaged accounts and employee stock options require separate analysis. State, local, and non-U.S. rules can also differ from U.S. federal treatment. This guide addresses exchange-traded investing examples, not personalized tax advice.
Reconcile contract records before filing
Keep opening and closing confirmations, premiums, quantities, multipliers, exercise and assignment notices, expiration records, stock tax lots, commissions, and the broker's product classification. Match every opening contract to a closing event rather than relying only on net cash movement.
Review Forms 1099-B, 8949, and 6781 as applicable, but do not assume a broker report resolves every straddle, wash-sale, or basis adjustment. Reconcile discrepancies early and consult a qualified tax professional when positions offset one another, cross year-end, or involve multiple accounts.
Common questions
Are option gains always short-term?
No. A holder who sells a typical equity put or call can have long-term or short-term capital gain or loss depending on how long the option was held. A writer's expiration premium and closing-transaction result are generally short-term. Exercise transfers the relevant premium into the stock transaction, while eligible Section 1256 contracts generally apply a 60% long-term and 40% short-term split regardless of holding time.
Can an expired option be claimed as a tax loss?
A purchased option that expires generally produces a capital loss equal to its cost on the expiration date, with character based on the holder's holding period. A written option that expires generally produces short-term capital gain equal to the premium received. Loss deductibility can still be limited or deferred by capital-loss limits, straddle rules, wash-sale rules, or other facts.
Are index options taxed differently from stock options?
Some are. Certain nonequity options, including eligible broad-based index options, can be Section 1256 contracts subject to year-end mark-to-market accounting and 60/40 treatment. A stock option or ETF option is not automatically in that category, and not every product called an index has identical treatment. Check the precise contract classification and tax documents.
Does Form 1099-B include every option tax adjustment?
Not necessarily. Broker reporting is an essential starting point, but portfolio-level straddles, transactions across accounts, protective puts, wash sales, and corrections to exercise or assignment basis may require taxpayer reconciliation. Compare the form with confirmations, expiration and assignment records, and stock lots, then resolve differences before filing.
Sources and further reading
Apply this idea to an option
Choose a contract and target to keep price, time, and volatility assumptions visible in one analysis
Analyze my option