Kalshi and taxes: what's clear, what's unsettled, and what to keep

By Melvin Tercan, Octagon Research Editor

Kalshi gains are taxable, and Kalshi — as a KYC'd, US-regulated exchange — issues year-end tax documents. What's genuinely unsettled in 2026 is how event-contract gains are characterized: ordinary income, standard capital gains, or Section 1256 regulated-futures treatment each have advocates, and the IRS hasn't published event-contract-specific guidance. This page maps the terrain; it is not tax advice, and a professional should make the characterization call for your return.

What is not in dispute

• Gains are taxable income. US taxpayers owe tax on net profits from event contracts whether or not any form arrives.
• The exchange knows who you are. Every account is identity-verified and reportable — this is not an offshore book where taxes are an honor system.
• Kalshi issues tax documents. Reporting thresholds and form specifics are described in Kalshi's own tax documentation and can change; treat their current help pages as the source of truth for which form you'll receive.

The open question: what kind of income is it?

Event contracts are new enough that their tax characterization has real ambiguity:

• Ordinary income treatment — the conservative default some preparers use, taxing net gains at your marginal rate.
• Capital gains treatment — arguing contracts are capital assets; almost all positions would be short-term at ordinary rates anyway, but loss-deduction rules differ meaningfully.
• Section 1256 treatment — the most trader-favorable argument: contracts on a CFTC-designated exchange resemble regulated futures, which get the 60/40 blended rate and mark-to-market. Commentators have made this case; the IRS hasn't blessed it for event contracts specifically.

The spread between these treatments is large enough to change real money on a good year — which cuts both ways. Don't pick the aggressive answer from a forum post; pick it with a professional who will sign the return.

Practical hygiene, regardless of characterization

• Export your full trade history at least yearly — every fill, fee, and settlement, plus deposits and withdrawals.
• Track net, not payouts. A $1.00 settlement on a contract you bought at 62¢ is 38¢ of gain, minus fees — record-keeping at the trade level makes this automatic.
• Watch for guidance changes. Event contracts moved from niche to mainstream fast — brokerage integrations brought them to millions of users in 2026 — and formal IRS guidance following that growth would change this page. We'll update it when it does.

Frequently asked questions

Does Kalshi report my winnings to the IRS?

Kalshi is a US-regulated exchange with KYC'd accounts and issues year-end tax documents reporting members' activity, with reporting thresholds and form types described in its own tax documentation. Whether or not a form arrives, US taxpayers owe tax on net gains — the form changes what the IRS already knows, not what you owe.

Are Kalshi profits taxed as gambling winnings or investment gains?

This is the genuinely unsettled question. Event contracts on a CFTC-designated exchange are regulated derivatives, and commentators have argued for treatments ranging from ordinary income to Section 1256 contract treatment (the 60/40 long-term/short-term capital gains split applied to certain regulated futures). The IRS has not issued definitive public guidance specific to event contracts. A tax professional should make this call for your situation.

Can I deduct Kalshi losses?

It depends on the characterization above — capital losses, ordinary losses, and gambling losses each follow different deduction rules and limits. Keep complete records of every trade either way; the deduction question is exactly where professional advice pays for itself.

What records should I keep from Kalshi?

Your full trade history: dates, contracts, sides, quantities, prices, fees, and settlement outcomes, plus deposits and withdrawals. Kalshi's account statements cover this, but export and keep your own copy — you want records that outlive your account access.

Do state taxes apply to Kalshi gains?

Generally yes — states tax income of their residents regardless of where the exchange sits, under their own rules for whichever federal characterization applies. State treatment follows the same unsettled federal question, which is one more reason to involve a professional if your activity is material.