Tax formsEvery venue

Prediction market tax forms: what each venue sends, and where a year is reported

As of October 25, 2026, this page sets out the tax forms each of the five prediction markets Realize covers (Kalshi, Polymarket, Robinhood, Novig and Coinbase) says it issues, whether any of them reports the profit or loss on your contracts, and the IRS forms a year of event contracts lands on under each of the common ways people file.

By Owen Monagan, Founder & CEOUpdated Checked October 25, 2026

Tax forms at a glance

Checked October 25, 2026
Kalshi
1099-INT1099-MISC1099-B1099-DA
Source
Polymarket
None documented: no page of the docs mentions a 1099, a W-9 or the IRS
Source
Robinhood
“Robinhood doesn’t provide a 1099 for event contract trades”
Source
Novig
A 1099-MISC when calendar-year redemptions reach $2,000 and net redemptions exceed $0
Source
Coinbase
Not named: Coinbase’s tax pages do not mention prediction markets or event contracts
Source
IRS guidance on event contracts
None issued

By venue5 venues

What tax forms does each prediction market send?

The forms each venue says it issues, and whether any of them reports the profit or loss on your contracts.

VenueTax formsContract profit or lossP&L statement
Kalshi1099-INT1099-MISC1099-B1099-DANo form reports itYearly, first in first out; the help center says it updates the first morning of each month
PolymarketNone documented: no page of the docs mentions a 1099, a W-9 or the IRS––
Robinhood“Robinhood doesn’t provide a 1099 for event contract trades”–Typically late January or early February: each trade, closing dates, costs, proceeds, fees and commissions, net P&L
NovigA 1099-MISC when calendar-year redemptions reach $2,000 and net redemptions exceed $0––
CoinbaseNot named: Coinbase’s tax pages do not mention prediction markets or event contractsCoinbase has not published which form, if any, CFM issues for event contractsThe daily statement, which in-app history can briefly lag
From each venue’s own help center or documentation, checked October 25, 2026. – means the venue has published nothing we could verify. Each venue’s name links to its tax forms guide where there is one.

Thresholds, delivery dates and where each form sits in the account: What Kalshi sends you at tax time, What Polymarket US sends you at tax time, What Robinhood sends you for event contracts, What Novig sends you at tax time, What Coinbase’s tax pages say about prediction markets.

Each form7 forms

What does each 1099 from a prediction market report?

Each form a venue names, in the venue’s own words.

FormVenueWhat the venue says it reports
1099-INTKalshiInterest payments from Kalshi
1099-MISCKalshiCredit/rewards from Kalshi (does not include profits/losses)
1099-BKalshiTransaction proceeds from broker transactions (crypto transfers)
1099-DAKalshiDigital asset transaction reporting from ZeroHash
1099-BCoinbaseFor US customers who sold equities, futures or perpetuals, or OTC options (institutional only)
1099-DACoinbaseFor US customers with gross proceeds from sales or exchanges of crypto assets
1099-MISCCoinbaseFor at least $2,000 in crypto and miscellaneous income, on the tax information page
Quoted or paraphrased from each venue’s tax help pages, checked October 25, 2026.

IRS forms

Which IRS forms can a prediction market year land on?

It depends on how the year is reported, and there is no IRS guidance on event contracts.

The IRS has issued no guidance on how event contracts are taxed. Of the people we’ve seen file, these are the most common ways they file, and each puts the year on different forms.

RouteIRS formsWhat goes thereGuide
Standard capitalForm 8949 and Schedule DEach closed position as a sale, one row per sale, netted into short-term and long-term totals.Prediction market capital gains
Section 1256Form 6781, then Schedule DThe year’s net gain or loss, split 60% long-term and 40% short-term, with positions open at December 31 treated as sold at their fair market value that day.Form 6781 for event contracts
GamblingSchedule 1 for winnings; Schedule A for lossesWinnings as other income; losses only for people who itemize, up to the year’s winnings and, from tax year 2026, 90% of them under §165(d).Are prediction markets gambling?
From the IRS forms and the Internal Revenue Code sections listed under Sources.

Where no venue form reports your trades, the year’s result comes from the venue’s own trade history. What each export covers: Kalshi trade history and exports, Polymarket US trade history and exports, Robinhood event contract history and P&L, Novig trade history and statements.

Guides7 guides

Read further.

How each form is filled in for an event-contract year, and where the figures come from.

Sources13 documents

Where each fact comes from.

Every figure above links to one of these, read on the date shown.

See your year priced three ways.

Connect your prediction market accounts for a free estimate under each common treatment, built from every fill.

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