Are Kalshi contracts Section 1256?
This is the question worth real money. If Kalshi event contracts qualify as Section 1256 contracts, your gains get the 60/40 long-term/short-term split: a meaningfully lower effective rate than ordinary income, no matter how briefly you held. So it's no surprise traders want the answer to be yes.
The honest answer is that it's unsettled, and treating it as a default is a mistake. Here's the case on both sides and what actually claiming the position involves.
- Under Section 1256, 60% of your gain is taxed at long-term rates and 40% at short-term rates, regardless of holding period.
- Section 1256 applies to certain instruments traded on regulated exchanges, and Kalshi operates as a CFTC-regulated Designated Contract Market.
- Regulation isn't sufficient on its own.
- If you and your advisor decide the position is supportable, it's reported on Form 6781, and many CPAs pair it with a Form 8275 disclosure to flag the aggressive stance and limit penalty exposure under examination.
- ContractTax computes your result under Section 1256 and under the more conservative treatments from the same trade history, so the choice isn't abstract: you see exactly how many dollars the position is worth for your specific year.
What the 60/40 split would save you
Under Section 1256, 60% of your gain is taxed at long-term rates and 40% at short-term rates, regardless of holding period. For an active trader whose gains would otherwise be entirely short-term, that blend can shave a real chunk off the bill.
Section 1256 also allows net losses to be carried back up to three years against prior 1256 gains, a flexibility ordinary capital losses don't offer. Combined, those features are why the treatment is so attractive.
The case for
Section 1256 applies to certain instruments traded on regulated exchanges, and Kalshi operates as a CFTC-regulated Designated Contract Market. That regulatory status is the necessary foundation for even considering the treatment, and it's why Kalshi is a stronger candidate than unregulated venues.
The case against
Regulation isn't sufficient on its own. The CFTC characterizes these binary event contracts as swaps, and the tax code contains an exclusion designed to keep swaps out of Section 1256 treatment. A binary, cash-settled contract on a yes/no outcome also doesn't sit comfortably within the categories Section 1256 was written for.
On top of that, the IRS has historically read the Section 1256 categories narrowly and has issued no guidance blessing event contracts. So the favorable treatment rests on an argument, not a settled rule, which is why many advisors treat ordinary income as the conservative default.
What claiming the position requires
If you and your advisor decide the position is supportable, it's reported on Form 6781, and many CPAs pair it with a Form 8275 disclosure to flag the aggressive stance and limit penalty exposure under examination. In practice it calls for strong factual support and a willingness to defend the position if questioned.
That's a real commitment, not a checkbox. It's the kind of decision to make deliberately with a professional, not because a calculator suggested it.
See the difference in dollars
ContractTax computes your result under Section 1256 and under the more conservative treatments from the same trade history, so the choice isn't abstract: you see exactly how many dollars the position is worth for your specific year. That makes the conversation with your CPA concrete: here's the upside, here's the exposure, here's the decision.