Free Options Tax Calculator

How Are Options Taxed?

Options taxation in the United States follows capital gains rules established by the IRS. When you buy or sell options contracts — whether calls or puts — any resulting profit or loss is treated as a capital gain or capital loss. The tax rate you pay depends on two key factors: your holding period (short-term vs. long-term) and your total taxable income for the year.

Our free options tax calculator helps you estimate federal and state taxes on your options trades. It supports all four trade types (long calls, long puts, short calls, short puts), multiple outcomes (closed, expired, exercised, assigned), and accounts for the Net Investment Income Tax (NIIT), capital loss deduction limits, and carryover rules.

Short-Term vs. Long-Term Capital Gains

The IRS distinguishes between short-term and long-term capital gains based on how long you held the position:

• Short-Term (≤ 1 year): Gains are taxed at your ordinary income tax rate, which ranges from 10% to 37% for 2025. Most options trades fall into this category because options typically have expiration dates within one year.
• Long-Term (> 1 year): Gains qualify for preferential tax rates of 0%, 15%, or 20% depending on your taxable income and filing status. LEAPS (Long-Term Equity Anticipation Securities) held for more than one year can qualify for these lower rates.

Tax Treatment by Option Outcome

Options That Expire Worthless

For buyers (long positions), the entire premium paid becomes a capital loss on the expiration date. For sellers (writers), the entire premium received is a short-term capital gain, regardless of how long the position was open. This is one of the most common tax events for options traders.

Options Closed Before Expiration

When you sell to close a long option or buy to close a short option, the difference between the closing price and the opening price (premium) is your capital gain or loss. The holding period determines whether it is short-term or long-term.

Exercised or Assigned Options

When a long call is exercised, the premium paid is added to the cost basis of the acquired stock. When a long put is exercised, the premium reduces the sale proceeds. For writers who are assigned, the premium adjusts the sale price (short calls) or purchase price (short puts) of the underlying stock. The holding period for the resulting stock position starts fresh from the exercise/assignment date.

Why Use Our Options Tax Calculator?

How to Use This Options Tax Calculator

1. 1

   Enter Your Tax Profile

   Select your filing status (single, married filing jointly, etc.), enter your estimated taxable income for the year, and choose your state of residence.

2. 2

   Add Your Trades

   For each options trade, select the trade type (long call, short put, etc.), outcome (closed, expired, exercised, assigned), number of contracts, premium per contract, and holding period.

3. 3

   Enter Trade Details

   Provide the strike price and the closing/underlying price at the time of the trade outcome. For closed trades, enter the price you sold or bought back the option at.

4. 4

   Review Your Tax Estimate

   See a complete breakdown of short-term and long-term gains/losses, federal tax, state tax, NIIT, capital loss deductions, carryover amounts, and your net after-tax result.

Capital Loss Rules for Options Traders

Capital losses from options trades can offset capital gains dollar for dollar. If your total losses exceed your total gains, you can deduct up to $3,000 ($1,500 if married filing separately) of the excess against ordinary income each year. Any remaining loss carries forward indefinitely to future tax years.

The netting process follows a specific order: short-term gains are first offset by short-term losses, and long-term gains are first offset by long-term losses. If one category has a net loss and the other has a net gain, they are then netted against each other.

The Wash Sale Rule and Options

The wash sale rule (IRS Section 1091) disallows a capital loss deduction if you purchase a "substantially identical" security within 30 days before or after the sale at a loss. For options traders, this can be triggered by buying a similar option on the same underlying stock within the wash sale window. The disallowed loss is added to the cost basis of the replacement position, deferring — but not eliminating — the tax benefit.