Short-Term vs Long-Term Capital Gains

In US taxable accounts, how long you hold a capital asset often determines whether gain or loss is short-term or long-term. That label affects the federal rate applied on many returns. State taxes may follow different rules.

This article explains the one-year rule in plain language, how options trades fit in, and why holding period tracking matters for planners.

The one-year rule (stocks)

For many stock positions, if you sell shares more than one year after you acquired them, profit may qualify as a long-term capital gain. Sell within a year (or less), and gain is often short-term, taxed at ordinary income rates for federal purposes in many situations.

Losses are generally capital losses too, short or long term, with annual deduction limits and carryforward rules.

Exact dates use trade date acquisition and sale rules per IRS guidance, not intuitive calendar guesses around holidays.

Rate difference (conceptual)

Congress sets brackets; they change. Historically:

Character	Federal rate idea
Long-term gains	Often lower preferential rates (0%, 15%, 20% tiers)
Short-term gains	Often taxed like wages, up to top ordinary bracket

High earners may also owe Net Investment Income Tax on investment income. This article does not list current dollar thresholds; check IRS Pub. 550 and Pub. 544 for the tax year you file.

Options are not exempt

Closing an option position starts the clock on that option trade’s holding period. Examples:

• Buy a call in March, sell in April → short-term gain or loss on the option.
• Sell a cash-secured put in January, buy back in March → short-term on the option leg.

The option’s holding period is separate from stock you might later own through exercise.

Exercise and assignment reset the stock clock

When you exercise a call and receive stock, your holding period for the shares often starts the day after exercise (for the shares acquired), not when you first bought the call.

When you are assigned on a short put and buy stock, your stock holding period for those shares generally begins at assignment.

Misunderstanding this leads to selling stock at 11 months thinking it is long-term when it is still short-term.

Premium and basis

For assigned short puts, stock basis often reflects strike minus premium received (simplified). For assigned short calls on stock you already owned, capital gain on the shares may blend premium and share history.

Brokers report many items on 1099-B, but you remain responsible for accuracy when lots are complex.

Planning examples (educational)

Swing trader. All round trips under 30 days → expect mostly short-term character unless holding stock over a year separately.

Buy-and-hold plus covered calls. Stock may be long-term while each short call cycle is short-term premium income until shares are called away.

LEAPS. A call held 18 months then sold for gain may be long-term on the option itself if holding period rules are met for that contract.

Losses offset gains

Short-term losses offset short-term gains first in the netting process; long-term losses offset long-term gains, then cross-netting rules apply. Excess losses may carry forward.

See Tax loss harvesting basics for intentional realization timing, not as a recommendation to trade for taxes alone.

What does not change character by itself

• Paper profit in ThetaViz saved strategies: not taxed until real closes at broker.
• Mark-to-market in a model: not a tax event.
• Dividends: separate rules; see Qualified dividends.

Holding period traps

Rolling a short option to a later expiration is a new trade for tax purposes in many cases. The premium from the closed leg is realized when you buy it back or it expires. Do not assume the original sale date carries forward to the new contract. Spreads closed together usually generate one net gain or loss on the package, but broker reporting may still show leg-level detail. Match the economic close to your records.

Related guides

• Options and stock taxes overview
• Assignment and exercise
• Reporting options trades

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ThetaViz provides educational tools only. This guide is not investment, tax, or legal advice. Prices, margin requirements, and tax rules change. Confirm details with your broker and qualified professionals before trading.