Day trading tax: the code section decides more than the bracket

There is no special day-trading tax rate in the US. What you owe turns on which code section your instrument falls under, whether you made a timely election, and a 30-day rule that most round-trip trades walk straight into.

Last verified 14 October 2026 · how we check

There is no line on a US tax form marked “day trading.” What you owe depends on which code section the instrument falls under, and three instruments that feel identical on a trading screen can land in three different places.

The three defaults

Stocks, ETFs and single-stock options fall under the ordinary capital gains rules. Hold them a year or less, which is what day trading means by definition, and the gain is short-term: taxed at your regular income rate, not a reduced rate.

Section 1256 contracts get a fixed 60/40 split between long-term and short-term treatment, regardless of how long you actually held the position. Every open contract is also marked to market on the last business day of the year and treated as sold at that price, whether you closed it or not (26 U.S.C. § 1256; IRS Publication 550). The category covers five things: regulated futures contracts, foreign currency contracts, nonequity options, dealer equity options and dealer securities futures contracts.

Retail spot forex defaults to ordinary gain or loss under Section 988. The statute is explicit: “any foreign currency gain or loss attributable to a section 988 transaction shall be computed separately and treated as ordinary income or loss” (26 U.S.C. § 988(a)(1)(A)).

The option that doesn’t get the 60/40 split

The 1256 category draws a line most comparison pages skip. A “nonequity option” is defined by exclusion: any listed option that isn’t an “equity option.” An equity option is one on an individual stock or a narrow-based index. Broad-based index options, like the kind written on a full market index, fall outside that exclusion and qualify as nonequity options (26 U.S.C. § 1256(g)(3), (6)). Trade options on a single stock and you’re in ordinary capital-gains territory; trade options on a broad index and the 60/40 split applies, even though both show up on the same options chain.

The wash sale rule, and who it actually catches

If you sell a stock or security at a loss and buy something “substantially identical” within 30 days before or after, the loss is disallowed under the wash sale rule and added to the basis of the replacement position instead (IRS Publication 550). It applies to the default capital-gains category above, not to Section 1256 contracts.

Day trading is the activity most likely to trigger it by accident. A trader who closes a losing position and reopens the same ticker the next morning, which is a routine part of the strategy rather than an edge case, has just walked into a 30-day window on both sides of the original sale. The loss doesn’t disappear; it gets deferred into the cost basis of the new position, which means the tax bill shows up later than the trader expects, not never.

The election that changes which rules apply

A trader who qualifies for trader tax status can elect mark-to-market accounting under 26 U.S.C. § 475(f), and the election rewires three things at once (IRS Topic 429):

• Gains and losses become ordinary rather than capital, reported on Form 4797 instead of Schedule D
• The wash sale rule and the capital loss limit described below stop applying
• Trading income still isn’t subject to self-employment tax: the IRS states plainly that “gains and losses from selling securities from being a trader aren’t subject to self-employment tax,” even when the activity is reported on Schedule C

Qualifying isn’t automatic. The IRS applies a three-part test: profit from daily price movement rather than dividends or long-term appreciation, activity that’s substantial, and conduct carried on “with continuity and regularity.” There’s no published threshold of trades per day or dollars per year; the IRS weighs holding periods, frequency and the time actually spent against the activity.

Timing is unforgiving in the other direction. The election has to be made “by the due date (not including extensions) of the tax return for the year prior to the year for which you intend the election to become effective.” A trader who decides in April that last year should have been an MTM year is a year too late. A new trader, filing for the first time, gets a narrower window: the statement has to be in their records within two months and fifteen days of the start of the tax year.

Forex has its own election, and it closes the same day it opens

Spot forex sits under Section 988 by default, but the statute allows an election to treat gain or loss on a forward contract, futures contract or option as capital gain or loss instead, which opens the door to 1256 treatment for eligible contracts. The catch is the deadline: the election has to be made and identified “before the close of the day on which such transaction is entered into” (26 U.S.C. § 988(a)(1)(B)). There’s no version of this election made at tax time for a position that’s already closed.

The asymmetry cuts against electing out casually: Section 988 losses offset ordinary income with no annual limit, while 1256 treatment caps the usable loss the way ordinary capital losses are capped, below. A trader expecting a loss year has a real reason to stay in 988; a trader expecting a gain year has a real reason to leave it, and the election has to be in place before either outcome is known.

Without the election, losses are capped at $3,000 a year

A net capital loss, outside the 1256 and MTM categories, offsets ordinary income only up to “the lesser of $3,000 ($1,500 if married filing separately)” (IRS Topic 409). The rest carries forward to future years, with no limit on how many years it can carry.

That cap is the practical reason mark-to-market matters to someone trading full-time. A trader with a $40,000 loss year and no MTM election reduces this year’s taxable income by $3,000 and carries $37,000 forward against gains that may not arrive for years. The same loss under MTM accounting is fully deductible against ordinary income in the year it happens.

Section 1256 contracts get a different, better accommodation: a net loss can be elected to carry back up to three preceding tax years instead of only forward (IRS Publication 550), which can generate a refund on taxes already paid rather than a deduction against income that hasn’t arrived yet.

Where the brackets actually bite

Short-term gains, 988 forex income and the 40% short-term slice of a 1256 contract all stack on top of your other income and get taxed at ordinary marginal rates. For tax year 2026 those rates are set by Revenue Procedure 2025-32:

The 2026 standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly. There is no separate “trader” bracket anywhere in this table; the only levers that move a day trader’s actual rate are which code section the instrument falls under and whether the MTM election was filed on time.

The part that catches people who’ve never owed a penalty before

Trading gains don’t come with withholding. A salaried employee who owes tax on wages has most of it collected automatically through payroll; a day trader with no other income source has nothing collected at all until a return is filed, which is where an underpayment penalty comes from even when the full tax eventually gets paid on time.

The safe harbor is specific: the IRS waives the penalty if a taxpayer owes less than $1,000 after withholding and credits, or if estimated payments and withholding together reach “90% of the tax for the current year or 100% of the tax shown on the return for the prior year, whichever is smaller” (IRS Topic 306). Below that threshold, the fix is quarterly estimated payments, due in four installments across the year, not a single payment in April.

A trader whose income is concentrated in a few strong months, rather than spread evenly, can still owe the penalty under the simple four-equal-payments schedule; the annualized installment method on Form 2210 recalculates each quarter’s required payment against income actually earned by that point, which is the fix for a result that looks uneven at a glance but isn’t once the timing of the gains is accounted for.

What to check before the first trade of the year, not the last

What you’re actually trading, not what it’s called. Futures and broad-index options get the 60/40 split. Single-stock options and ETF shares don’t, even when the underlying exposure looks similar.

Whether you’ve made the 475(f) election, and when it took effect. It can’t be backdated to a year already filed.

Whether a round-trip re-entry falls inside 30 days of the loss. If it does, the loss is deferred, not gone, and it shows up in the basis of the new position.

Whether a forex opt-out was identified on the day the position was opened. Not noted, not emailed to yourself later, identified in your records that day.

None of this is a workaround. It’s reading the same code sections that apply to every other taxpayer and noticing that “day trader” isn’t one of them.

Sources

• IRS Topic 429 — Traders in securities
• IRS Publication 550 (2025) — Investment Income and Expenses
• IRS Topic 409 — Capital gains and losses
• IRS — tax year 2026 inflation adjustments (Rev. Proc. 2025-32)
• 26 U.S.C. § 988 — Treatment of certain foreign currency transactions
• 26 U.S.C. § 1256 — Section 1256 contracts marked to market
• IRS Topic 306 — Penalty for underpayment of estimated tax