Day Trading Taxes Explained: What Every Trader Needs to Know in 2026

Most U.S. day trading profits are short-term capital gains, which the IRS taxes as ordinary income at rates from 10% to 37%. Long-term rates of 0%, 15% and 20% apply only to assets held for more than a year, so they rarely help a day trader. This page explains federal rules from IRS sources for general education, and a tax professional should confirm anything you act on.

What you owe on a year of trading

Suppose a single filer has $64,000 of taxable income, and $10,000 of that is net short-term gains. Using the IRS's 2025 brackets, the 22% bracket covers income from $48,476 to $103,350, so the whole $10,000, which sits between $54,000 and $64,000, falls in that bracket. The federal tax on those gains is $2,200, and state income tax may come on top. You can run your own numbers through the tax estimator.

The 2025 rates and thresholds are the ones the IRS page showed when we checked in November 2026. Thresholds change each year, so use the table for the year you are filing.

How the IRS treats losses

If your capital losses exceed your gains, you can deduct up to $3,000 of the excess against other income in a year, or $1,500 if you are married filing separately. The rest carries forward to later years.

A trader who lost $20,000 with no gains would deduct $3,000 this year and carry $17,000 forward. At $3,000 per year, it would take almost seven years to use the whole loss if no gains came along to absorb it.

The wash sale rule

A wash sale happens when you sell a stock or security at a loss and buy substantially identical stock within 30 days before or after the sale. You cannot deduct the loss at that point. It is added to the cost of the new shares, which postpones the deduction until you sell them.

Here is why this matters for frequent traders. You buy 100 shares at $50, sell at $48 for a $200 loss, and buy back the next day at $49. The $200 loss is disallowed for now, and your new cost basis is $49 plus $2 per share, or $51. If you still hold the new shares at year-end, the deduction waits until you sell them, which can move it into the next tax year.

Trader tax status

The IRS separates investors from traders in Topic 429. To count as a trader, you must seek to profit from daily price movements rather than from dividends, interest or long-term appreciation. Your activity must also be substantial, and you must carry it on with continuity and regularity. There is no set number of trades that qualifies you.

Traders report business expenses on Schedule C, which can include platform and data costs. Investors generally cannot deduct those. The IRS also says that gains and losses from selling securities as a trader are not subject to self-employment tax.

The mark-to-market election

Only traders can make the Section 475(f) mark-to-market election. With a valid election, gains and losses are generally ordinary and go on Form 4797, and the $3,000 capital loss limit and the wash sale rules no longer apply. In the example above, a trader with the election could generally deduct the full $20,000 loss in that year.

The trade-off is that your gains become ordinary too, so you give up long-term rates on those securities. The election also has a firm deadline: the election is due by the due date, not counting extensions, of your return for the year before the election year. The IRS says late elections are generally not allowed, so a trader who wants the election for 2027 needs to make it by the 2026 return's due date.

Futures and the 60/40 rule

Section 1256 contracts, which include regulated futures, use a different system. Publication 550 says 60% of the gain or loss is treated as long-term and 40% as short-term, regardless of how long you held the contract. Open contracts at year-end are treated as sold at fair market value on the last business day.

A $10,000 futures gain for someone in the 22% bracket, who would pay 15% on long-term gains, works out to $6,000 at 15% plus $4,000 at 22%. That is $900 plus $880, or $1,780, compared with $2,200 if the whole gain were short-term.

Estimated taxes

Nobody withholds tax from trading profits. The IRS says you generally have to make estimated payments if you expect to owe $1,000 or more when you file, using Form 1040-ES. The due dates are April 15, June 15, September 15 and January 15 of the following year. A date that falls on a weekend or legal holiday moves to the next business day.

Records to keep

Keep every trade's date, quantity, price and fees, plus receipts for any expense you claim, and compare your own records with your broker's Form 1099-B.

Be careful about rebuying in an IRA. The wash sale rule also covers stock you buy for an IRA or Roth IRA, and Publication 550 excludes that case from the usual addition to cost basis, so the loss does not simply move to the new shares.

Tax rules outside the U.S. differ, so check with your own country's tax authority if you live elsewhere.

Frequently asked questions