Do Forex Traders Pay Tax in the USA: Section 988, 1256, and NIIT

Yes, forex traders pay tax in the USA on every dollar of net trading profit, and the rate depends on which of two Internal Revenue Code sections governs your trades. Spot currency trades through a typical retail broker default to Section 988, which taxes gains as ordinary income at rates up to 37% in 2026. Currency futures and certain other qualifying contracts fall under Section 1256, whose 60/40 rule produces a blended maximum rate of about 26.8% for a top-bracket trader. The gap between the two regimes can mean thousands of dollars a year, so the first thing to pin down is which one applies to what you actually trade.

Section 988: The Default for Spot Forex

If you trade spot currency pairs through a standard retail forex broker, your gains and losses fall under Internal Revenue Code Section 988 automatically. Section 988 treats foreign currency transaction gains and losses as ordinary income or ordinary loss.¹ Your net profit stacks on top of wages and other income and is taxed at your regular marginal rate, which reaches 37% for taxable income above $640,600 for single filers in 2026.²

The upside sits on the loss side. Because Section 988 losses are ordinary, they escape the $3,000 annual capital loss deduction cap that limits stock market losses.³ Lose $30,000 in a year under Section 988 and the whole $30,000 offsets your other ordinary income that year. For a trader who takes a large drawdown, that is a real advantage over capital treatment.

Section 1256 and the 60/40 Rule

The more favorable regime lives under Internal Revenue Code Section 1256, which covers regulated futures contracts, foreign currency contracts traded on qualified exchanges, and certain listed options. If your forex contracts qualify, 60% of your net gain or loss is treated as long-term capital, and 40% as short-term, regardless of how briefly you held any position.⁴

Long-term capital gains top out at 20%, while short-term gains use ordinary rates up to 37%. Blend those under the 60/40 split and a top-bracket trader pays roughly 26.8% (60% × 20% + 40% × 37%) versus a flat 37% under Section 988. In the 24% bracket, the blended rate falls to about 18.6%. On a large account, the difference is substantial.

Section 1256 also allows a loss carryback that ordinary losses do not. A net Section 1256 contract loss can be carried back to offset Section 1256 gains in the three prior tax years.⁵ The carryback offsets only prior Section 1256 gains and cannot create a net operating loss in the carryback year, but it lets you recover taxes paid in earlier profitable years when a losing year hits. Section 1256 contracts are also exempt from wash sale rules, so you can close a losing position and immediately reopen a similar one without forfeiting the deduction.⁶

Which Contracts Actually Qualify

This is where most retail traders get tripped up. Section 1256 applies automatically to regulated futures contracts and to foreign currency contracts traded on qualified board of trade exchanges.⁴ Currency futures on the CME qualify. The over-the-counter spot forex contracts sold by most retail brokers do not: they are not regulated futures contracts and do not trade on a qualified exchange, so they default to Section 988.

To get the 60/40 benefit, you either trade currency futures on a regulated exchange or make a separate election to opt out of Section 988 on your spot forex trades. That election does not deliver the 60/40 split, but it does convert your gains and losses from ordinary to capital.

Electing Out of Section 988

The Code allows traders to elect capital treatment on certain forward contracts and similar instruments that would otherwise fall under Section 988. The election is per-transaction: each trade must be identified as a capital asset before the close of the day you enter it.¹ You cannot wait until year-end and designate your winners as capital gains while leaving your losers as ordinary deductions. In practice this means a contemporaneous log or internal record marking every trade as capital when it is opened.

Once the election is in place, short-term capital gains from positions held a year or less (which covers almost all retail forex activity) are still taxed at ordinary rates. The real difference shows up when you lose: capital losses above your capital gains are capped at $3,000 of deduction against other income each year.³ Wash sale rules also apply. The opt-out makes strategic sense mainly for consistently profitable traders who want to pair forex gains with capital losses from other investments. Traders who take frequent losses are usually better off leaving the trades under Section 988, where the full ordinary loss deduction produces more immediate tax relief.

The 3.8% Net Investment Income Tax

Higher-earning forex traders face an extra 3.8% Net Investment Income Tax on top of regular income tax. The NIIT applies to the lesser of your net investment income or the amount by which your modified adjusted gross income exceeds these thresholds:⁷

Single or head of household: $200,000
Married filing jointly: $250,000
Married filing separately: $125,000

Net investment income includes income from trading financial instruments and commodities.⁸ The thresholds are not indexed for inflation, so more taxpayers cross them each year. For a top-bracket trader using the 60/40 rule, the effective maximum rate climbs from 26.8% to about 30.6% once the NIIT is added. Under Section 988, the effective top rate rises from 37% to 40.8%.

How and When You Pay

Forex brokers do not withhold income tax the way an employer does. If you expect to owe $1,000 or more after withholding and credits, you need to make quarterly estimated tax payments to avoid an underpayment penalty.⁹ The 2026 deadlines are:

April 15, 2026, for income earned January through March
June 15, 2026, for income earned April through May
September 15, 2026, for income earned June through August
January 15, 2027, for income earned September through December

You avoid the penalty by paying at least 90% of your current-year tax liability through estimated payments, or 100% of your prior-year liability (110% if your prior-year adjusted gross income was above $150,000). For traders with volatile income, the prior-year safe harbor is usually the simplest approach because it does not require predicting current-year profits. The IRS charges interest on underpayments at a rate that resets quarterly; for the first half of 2026, the rate is 6% to 7%.¹⁰

The Forms

Section 1256 contracts get reported on IRS Form 6781, Gains and Losses From Section 1256 Contracts and Straddles.¹¹ The form uses mark-to-market accounting: all open positions are treated as sold at fair market value on the last business day of the tax year. Your total is then split, with 40% flowing to Schedule D as short-term capital gain or loss and 60% as long-term.¹²

Section 988 spot trades that do not rise to the level of a trade or business are reported on Schedule 1 (Additional Income and Adjustments to Income), which feeds into Form 1040. If your trading qualifies as a trade or business, ordinary gain or loss may go on Form 4797, Sales of Business Property, which is also used by traders who have made a mark-to-market election.¹³ Either way, you need cost basis and closing value for every trade, with commissions and spreads factored into the net figure. Broker year-end statements are a starting point, but the IRS expects you to reconcile them against your own records.

Trader Tax Status and the 475(f) Election

Traders who run forex as a full-time business activity may qualify for Trader Tax Status. The IRS looks at several factors:¹⁴

Profit motive from daily price movements rather than long-term appreciation or interest
Substantial trade frequency and dollar volume
Continuity and regularity of trading throughout the year

The IRS also weighs typical holding periods, time devoted to trading, and whether trading income supports your livelihood. Calling yourself a trader does not establish TTS. If your activity does not meet the criteria, the IRS treats you as an investor regardless of your label.

Traders with TTS can make a Section 475(f) mark-to-market election, which converts all trading gains and losses to ordinary income and loss. Ordinary losses under Section 475 are fully deductible against all types of income with no annual cap, and wash sale rules stop applying. The trade-off is giving up the 60/40 treatment on any Section 1256 contracts and locking all gains into ordinary rates. The election is prospective: for existing taxpayers wanting it to take effect in 2026, the election statement had to be filed with the 2025 return or extension by April 15, 2026, followed by Form 3115 with the 2026 return.

One point that catches traders off guard in a good way: trading income generally does not trigger the 15.3% self-employment tax that applies to other business income. Trading profits are not earnings from services, which is what SECA tax covers. This is true even for traders with full TTS who file Schedule C.

TTS also opens the door to deducting ordinary and necessary business expenses on Schedule C, including data and charting subscriptions, computers and monitors, tax preparation fees tied to the trading business, a proportional home office deduction on Form 8829, the business-use share of internet and phone costs, and education that maintains existing trading skills. Investors who do not meet the TTS threshold lost the ability to deduct investment expenses as miscellaneous itemized deductions when that provision was eliminated.

If Your Broker Is Outside the United States

Trading through a foreign broker creates separate reporting obligations that have nothing to do with how the profits are taxed, and the penalties are steep enough that they warrant attention even for modest accounts. You must file a Report of Foreign Bank and Financial Accounts (FBAR, FinCEN Form 114) if the combined value of your foreign financial accounts exceeds $10,000 at any point during the year.¹⁵ The FBAR is filed electronically through FinCEN’s BSA E-Filing System, not with your tax return, and is due April 15 with an automatic extension to October 15.¹⁶ The obligation applies whether or not the account produced income. Non-willful penalties can reach $10,000 per violation (adjusted for inflation); willful failures can bring penalties up to 50% of the account’s maximum balance or $100,000 (adjusted for inflation), whichever is greater, plus possible criminal exposure.

Separately, FATCA may require Form 8938 with your tax return once your specified foreign financial assets cross thresholds that start at $50,000 for single filers living in the US.¹⁷ FBAR and Form 8938 overlap but are separate filings, and filing one does not satisfy the other.

Records the IRS Expects

Whichever regime applies, keep a trade log with the date each position opened and closed, the currency pair, the position size, the entry and exit prices, and any commissions or fees. For Section 1256 contracts, add the fair market value of any open positions on the last business day of the year for the mark-to-market calculation. If you have elected out of Section 988, your records need to show that each trade was identified as a capital asset before the close of the day it was entered; a contemporaneous journal or time-stamped broker confirmation is the practical way to meet that standard. Traders claiming TTS should also keep documentation supporting the frequency, regularity, and time commitment of the activity, since those are the factors the IRS uses to decide whether the trading rises to a trade or business.¹⁴

1
Office of the Law Revision Counsel. 26 U.S. Code 988 – Treatment of Certain Foreign Currency Transactions
2
Internal Revenue Service. Federal Income Tax Rates and Brackets
3
Internal Revenue Service. Topic No. 409, Capital Gains and Losses
4
Office of the Law Revision Counsel. 26 U.S. Code 1256 – Section 1256 Contracts Marked to Market
5
Office of the Law Revision Counsel. 26 USC 1212 – Capital Loss Carrybacks and Carryovers
6
Internal Revenue Service. Form 6781 – Gains and Losses From Section 1256 Contracts and Straddles
7
Internal Revenue Service. Net Investment Income Tax
8
Internal Revenue Service. Questions and Answers on the Net Investment Income Tax
9
Internal Revenue Service. Estimated Tax
10
Internal Revenue Service. Quarterly Interest Rates
11
Internal Revenue Service. About Form 6781, Gains and Losses From Section 1256 Contracts and Straddles
12
Internal Revenue Service. Form 6781 – Gains and Losses From Section 1256 Contracts and Straddles
13
Internal Revenue Service. About Form 4797, Sales of Business Property
14
Internal Revenue Service. Topic No. 429, Traders in Securities
15
Internal Revenue Service. Report of Foreign Bank and Financial Accounts (FBAR)
16
Financial Crimes Enforcement Network. Report of Foreign Bank and Financial Accounts
17
Internal Revenue Service. Summary of FATCA Reporting for U.S. Taxpayers