Futures Trading Taxes: The 60/40 Rule

Futures trading taxes work differently than stock taxes because of a rule called Section 1256. Under this rule, 60% of your gains or losses on contracts like the S&P 500 E-mini (ES) are treated as long-term and 40% as short-term, no matter how long you held the position. That split usually means a lower blended tax rate than trading stocks, where holding period actually matters.

What is Section 1256 and why does it matter for futures trading taxes?

Section 1256 of the Internal Revenue Code covers a specific list of financial instruments, including regulated futures contracts like ES, options on those futures, and certain other exchange-traded derivatives. If what you trade falls under this section, the IRS taxes it using a fixed formula instead of the usual short-term versus long-term test.

That fixed formula is the 60/40 split. It applies automatically. You don't elect into it, and you don't need to hold a position for a year to get partial long-term treatment. The rule exists because futures contracts are marked to market daily, so Congress built a tax treatment around that mechanism rather than around holding periods.

How the 60/40 rule actually works

Every dollar of net gain or loss on a Section 1256 contract gets split into two buckets: 60% is taxed at long-term capital gains rates, and 40% is taxed at short-term rates, which match your ordinary income bracket. This happens regardless of whether you held the ES contract for six months or six minutes.

Say you close the year with $10,000 in net futures gains. $6,000 gets long-term treatment, taxed at rates typically between 0% and 20% depending on your income. The remaining $4,000 gets short-term treatment, taxed at your ordinary income rate, which could run as high as 37% at the top federal bracket. Blend those two pieces together and most traders land on an effective rate well below what they'd pay if the entire gain were taxed as ordinary income.

The 60/40 split applies the moment you close a futures trade, not after you've held it long enough to earn it.

Mark-to-market: why you don't wait to sell

Stocks trigger a taxable event when you sell them. Futures under Section 1256 don't work that way. The IRS treats every open position as if you sold it at fair market value on the last trading day of the year, then immediately bought it back at that same price. This is called mark-to-market accounting.

The practical effect is that you owe tax on unrealized gains in positions you're still holding on December 31, even if you never closed the trade. If the position later loses money, you get a corresponding adjustment, but the tax clock doesn't wait for you to exit. This is a real difference from equities, where an unrealized gain sits untaxed until you sell.

Futures trading taxes vs stock trading taxes

With stocks, your tax rate depends entirely on how long you held the position. Sell within a year and the gain is short-term, taxed at your ordinary rate. Hold past a year and it's long-term, taxed at the lower capital gains rate. There's no blending. It's all or nothing based on the calendar.

With Section 1256 futures, the 60/40 split applies to every trade automatically, whether you held it for a day trade or over multiple quarters. A day trader flipping ES contracts gets the same 60/40 blend as someone holding a position for eleven months. For active traders who rarely hold anything past a year, that difference can be significant, since equity day traders get taxed entirely at short-term rates while futures day traders still capture the 60% long-term portion.

What this looks like at tax time

Section 1256 gains and losses get reported on IRS Form 6781, which separates the 60% long-term and 40% short-term amounts and carries them to your Schedule D. Your futures broker will typically send a 1099-B showing your aggregate profit or loss for the year, already reflecting the mark-to-market adjustment, which simplifies the bookkeeping considerably compared to tracking individual lot sales.

There's also a carryback provision worth knowing about. If you have a net Section 1256 loss, you can elect to carry it back three years and apply it against prior Section 1256 gains, subject to some limits. That's a tool equity traders generally don't have access to.

None of this replaces a conversation with a CPA who knows your full tax situation. The mechanics above are consistent and well established, but how they interact with your specific income, other trading activity, and state taxes is worth getting professional eyes on before you file.