How to Report Prediction Market Profits on Your Taxes (2026)

Prediction-market traders hit a wall that stock and futures traders rarely do: the January envelope never shows up. There's no consolidated 1099 summarizing the year, no cost-basis column, and — as of July 2026 — no IRS guidance telling anyone which schedule the profit belongs on. What arrives instead is a CSV, and a decision to make.

This page walks the practical sequence most traders and their CPAs actually follow: pull the records, rebuild the numbers, pick a characterization deliberately, put it on the right forms, reconcile whatever paperwork did arrive, and write down the reasoning. It does not tell you which treatment is correct, because nobody can — the honest deliverable is a clean process and a clear map of where each approach lands.

How Do You Report Prediction Market Profits on Your Taxes?

Most traders start by exporting complete platform records, netting each position to a gain or loss, then choosing one characterization with a CPA — capital, Section 1256, wagering, or ordinary income — because the IRS has issued no tax guidance on event contracts. The treatment picked determines which forms and lines apply.

That's the whole page in one paragraph. The seven steps below are the expanded version, in the order the work usually happens. Two things to know before starting:

• The characterization question comes late but decides everything. You can gather records and rebuild per-position results without answering it — and that's deliberately how this guide is sequenced, because the raw data supports all four approaches. The fork happens at step four.
• The spread between treatments is large. On an illustrative 2026 example — $30,000 of gross wins, $20,000 of gross losses, $10,000 of real profit for a single filer with roughly $100,000 of other income — the federal bill runs from about $1,860 under Section 1256 to about $7,200 under wagering treatment for a standard-deduction filer. Same trades, close to a 4x spread. Our prediction market taxes guide works through why.

Step 1 — What Records Do the Platforms Actually Give You?

It varies sharply by venue. Kalshi typically offers an annual transaction CSV and monthly profit-and-loss statements; Robinhood provides an event-contracts annual statement its own materials call a non-tax document; offshore Polymarket provides nothing, so records get rebuilt from the blockchain. Every venue leaves the reporting work with the trader.

Here's the practical picture as of July 2026, hedged where the sourcing is thin — platform practices change year to year, and the reliable move is checking your own account's tax-documents section each January.

A few record-gathering details worth handling up front:

• Pull every venue, not just the profitable one. Multi-platform traders often forget the small account — and under some treatments losses there are the only thing offsetting gains elsewhere.
• Interest and referral income are separate line items. Cash-balance interest is ordinary interest income and the one clearly settled piece of prediction-market taxation; referral credits are their own category. Neither belongs inside trading P&L.
• Crypto-settled venues carry a second layer. On offshore Polymarket, spending USDC to buy, selling for USDC, and USDC payouts are each digital-asset disposals in their own right — technically reportable even if nothing was ever converted to dollars, and the 1040 digital-asset question generally gets a "yes." See our crypto taxes guide and the Polymarket taxes guide.
• The threshold moved for 2026. The OBBBA lifted the 1099-MISC reporting threshold from $600 to $2,000 for payments made in 2026, inflation-indexed from 2027 — so more profitable traders will receive no form at all while still owing tax. The same change hits prop-firm traders' 1099-NECs.

Step 2 — How Do You Turn Raw Trade History Into a Reportable Figure?

Position by position: basis is what was paid plus fees, and proceeds are the sale price or the $1.00 or $0 settlement. Deposits minus withdrawals is not the taxable amount. Which summary figure matters — per-position detail, gross wins and losses, or one net number — depends on the treatment chosen.

The per-contract math on a binary event contract is simple enough to check by hand, which is worth doing on a few rows before trusting a spreadsheet:

• Buy 100 YES contracts at $0.40 → basis ≈ $40 plus fees
• Resolves YES at $1.00 → $100 proceeds → ≈ $60 gain
• Resolves NO at $0 → ≈ $40 loss
• Sold early at $0.65 → $65 proceeds → ≈ $25 gain

Four mechanics catch people out, and all four are treatment-neutral — they apply no matter which characterization is eventually used:

• The taxable event is settlement or sale, not withdrawal. Profit sitting in a platform balance on December 31 is typically taxable for that year. Depositing $5,000 and withdrawing $7,000 does not mean $2,000 of income; the math runs per contract.
• Don't deduct fees twice. Platform P&L statements that already fold in fees and rebates are generally not fee-adjusted a second time. Fees adjust basis and proceeds, not a separate deduction line.
• Check the units. Kalshi's CSV values are reportedly stored in cents. If a hobby account's spreadsheet shows $400,000 of profit, the units are the first suspect.
• Open positions matter under one branch only. A Section 1256 approach marks open December 31 positions to market, so a "closed trades only" net figure is incomplete there. The capital and ordinary branches generally look at closed positions.

Step 3 — Which Treatment and Which Forms Apply?

Four approaches are in play, each with its own paperwork: Section 1256 runs through Form 6781, capital treatment through Form 8949 and Schedule D, wagering through Schedule 1 line 8b with losses on Schedule A, and ordinary other income through Schedule 1 line 8z. Practitioners disagree; the choice belongs with a CPA.

This is the reference table the rest of the page hangs on — treatment mapped to forms, lines, and how losses behave. Line references reflect the current 1040 series and can shift between filing seasons.

Why is the choice genuinely contested?

Because a binary event contract sits between categories the code actually defines. It resembles an option but conveys no right to buy or sell property, trades on a CFTC-designated exchange but posts full collateral with no variation-margin system, and pays all-or-nothing on an outcome, which resembles a wager.

Section 1256's swap exclusion in §1256(b)(2)(B) is the sharpest single objection to 60/40 treatment, since the CFTC — and platforms' own regulatory filings — describe event contracts as swaps. Our hub guide works through the full debate and who holds which position.

Practitioner analyses typically frame a contract-by-contract spectrum rather than one answer for a whole account: sports-outcome contracts sit closest to wagering; macro, Fed, and economic-data contracts present the strongest capital-asset case; election contracts fall in between. A trader holding only CPI contracts is in a different posture than one trading World Cup markets. Traders coming from conventional instruments may want to compare how futures and options are taxed — both far more settled.

Step 4 — What Do You Do With Any 1099s That Do Arrive?

Read each one for what it actually covers. On prediction-market platforms the forms that show up typically report interest, referral credits, or digital-asset movement rather than contract profits. Amounts on a 1099 still need to appear somewhere the IRS matching system can find them, which is a common reconciliation headache.

The mismatch problem is worth understanding before it happens. IRS systems match reported amounts against returns. If a platform issues a 1099-MISC and the trader reports the same economics on Schedule D under a capital characterization, the matching system may not see the connection — which is how prediction-market CP2000 notices get generated on returns that were substantively fine. Practitioners generally handle this by reporting the form's amount where the form points, then making an explanatory adjustment so the return nets to the real economics. That reconcile-and-back-out technique is exactly the kind of thing worth doing with a CPA rather than improvising.

Form by form, what typically shows up and where it usually lands:

• 1099-INT — cash-balance interest. Ordinary interest income, reported with other interest. Settled territory, no characterization debate, and reportable even below the $10 form threshold.
• 1099-MISC — referral and reward credits. Not trading profit. Threshold is $600 for payments through 2025 and $2,000 for payments made in 2026, inflation-indexed from 2027.
• 1099-B (narrow) and 1099-DA — digital-asset movement. On Kalshi these relate to certain broker or crypto-transfer proceeds, with 1099-DA issued via crypto partner Zero Hash from tax year 2025. A trader who funded with crypto may receive one of these and still get nothing describing contract P&L.
• A gross-proceeds 1099-MISC with no basis. The reported IBKR/ForecastEx pattern for tax year 2024 — proceeds reported gross, with notes telling the taxpayer to adjust. Whether that continued for 2025 is unverified, and one source describes consolidation into the 1099-B instead. Conflicting accounts; an actual statement settles it.
• An aggregate futures-style 1099-B. Crypto.com's derivatives arm (the former Nadex) describes issuing one with realized and unrealized aggregates. Important caveat: a platform's 1099-B presentation does not establish that Section 1256 treatment is legally correct. Nadex itself issued 1256-coded 1099-Bs for years, then reversed course in February 2014 after the CFTC advised its binaries were swaps.

And the case that surprises people most: no form at all is normal. It changes nothing about taxability, and it changes nothing about the process in steps 1 through 3 — the exports carry the filing. If your event contracts were placed through a broker, the document worth reading is whichever one the broker actually sends; more on that in our Robinhood taxes guide and Webull taxes guide.

How Do You Enter Prediction Market Trades in Tax Software?

No mainstream consumer tax software offers a dedicated prediction-market flow as of the most recent filing season. Traders typically use one of three manual paths — entering transactions as capital dispositions, the contracts-and-straddles interview, or a miscellaneous-income entry — each of which maps to a different treatment and produces a different result.

The practical consequence is that the software does not make the decision — the path chosen is the characterization. Nothing imports, because there's no comprehensive 1099 to import from. Community threads document confusion in all three flows, and it's easy to end up in the contracts-and-straddles interview (a Section 1256 path) without having intended to take an aggressive position. Traders who use software typically settle the treatment question first, then pick the matching entry path deliberately:

• Capital path — self-entered transactions as sales of capital assets, flagged as not reported on a 1099-B, landing on Form 8949 and Schedule D.
• Section 1256 path — the contracts-and-straddles interview, landing on Form 6781. Taking this path is taking a position; many practitioners pair it with disclosure.
• Other-income path — the miscellaneous-income entry, landing on Schedule 1 line 8z with a description.
• Wagering path — gambling winnings and losses interviews, landing on Schedule 1 line 8b and Schedule A line 16, subject to the 2026 cap.

Step 5 — How Do You Document the Position You Took?

Most practitioners write the reasoning down: which treatment was chosen, which authorities and arguments were weighed, and the contract mix it was applied to. Aggressive positions such as Section 1256 are often paired with a Form 8275 disclosure statement. Consistency across years matters more than picking the theoretically perfect answer.

The emerging practitioner consensus for filing under genuine uncertainty is remarkably consistent across sources: pick one reasonable characterization, apply it consistently year over year, document the reasoning, and keep complete records. What that documentation typically contains:

1. The treatment selected, in one sentence — plus the date the decision was made and who was involved.
2. The reasoning — which arguments were weighed, including the ones cutting the other way. A memo that acknowledges the swap exclusion and still explains the position reads far better than one that pretends the issue is settled.
3. The contract mix it was applied to — sports versus economic-data contracts, since practitioner analyses treat those differently.
4. The supporting exports — the CSVs, P&L statements, and any wallet history the figures came from.
5. Whether disclosure was attached — Form 8275 is the common vehicle for an aggressive position, and the decision to file it (or not) is worth recording either way.

The pattern practitioners most warn against is flip-flopping — capital treatment in a gain year, wagering in a loss year, whichever produces the better number this season. Consistency is the cheapest credibility a filer can buy in this area.

Step 6 — Which Records Are Worth Keeping, and For How Long?

Trade-level history, dates, contract identifiers, quantities, prices, fees, platform statements, and the year-end figures actually reported. Most practitioners keep everything for at least three years after filing, and longer for large or unusual positions, since the IRS look-back window extends when income is substantially understated.

A complete record set for a prediction-market trader typically includes:

• The annual transaction export — every fill, with dates, contract identifiers, quantities, and prices
• Platform P&L or annual statements — useful as an independent cross-check on your own computation, especially for the units problem
• Any 1099s received — plus a note on how each was reconciled onto the return
• Wallet history, for crypto-settled venues — the on-chain record is the only record offshore Polymarket leaves behind
• A screenshot or copy of the platform's tax-documents page — cheap evidence of what the platform did and didn't issue in a given year, which matters because practices change
• The position memo from step 5 — the document that turns a judgment call into a defensible one

Two structural questions live in this territory and don't have answers yet: whether event contracts count as "securities or commodities" for a Section 475 mark-to-market election, and how trader tax status or an entity structure like an LLC or S-Corp interacts with event-contract trading. Specialist practitioners are only beginning to analyze both. Traders tracking expenses alongside their contract activity may also want our trader deductions guide, and the wash-sale question — probably not reaching event contracts, but not confirmed either — is covered in our wash-sale rule guide.

Do Prediction Market Traders Owe Quarterly Estimated Payments?

Often, yes. No prediction-market platform appears to withhold tax, so a profitable year can arrive with nothing prepaid. Traders who expect to owe $1,000 or more typically make quarterly estimated payments, frequently anchored to the 100% or 110% prior-year safe harbor. A CPA can size the payments.

A profitable World Cup run or election cycle can generate a real liability behind zero withholding — no W-2G, no backup withholding, nothing. Many traders set aside a percentage of net profits as they go and true up each quarter using Form 1040-ES. Under a professional-gambler characterization there's an extra layer: self-employment tax at 15.3% up to the 2026 Social Security wage base of $184,500, with Medicare continuing above it. Our quarterly estimated taxes guide for traders covers the mechanics, and day trading taxes covers the broader active-trader picture.

State-level activity deserves a footnote, though so far it points at platforms rather than at individuals. North Carolina's SB 257, signed July 7, 2026, applies a 6% tax to operators' net trading-fee revenue apportioned to NC residents beginning January 1, 2027 (and statutorily recognizes exclusive CFTC jurisdiction); Kentucky's HB 757, from April 2026, sets a 14.25% operator excise from the same date. Roughly fifteen states considered prediction-market bills during 2026. Both enacted measures are operator-level excises, not individual income taxes, and no state revenue agency appears to have issued individual income-tax guidance on prediction-market winnings — so for most traders these reach the P&L indirectly through fees rather than showing up on a return. That said, state conformity to the federal characterization matters enormously under a wagering approach, since a number of states allow no gambling-loss deduction at all.

Step 7 — Where Does a CPA Fit Into This?

At the decision points. Choosing a characterization, sizing the wagering-cap exposure, deciding whether to disclose, handling multi-platform and multi-year records, and weighing entity or election questions are all judgment calls that depend on facts a template cannot see. Every situation varies, and this area is actively evolving.

Steps 1, 2, and 6 are mechanical — a careful trader can do them alone with a spreadsheet and an afternoon. Steps 3, 4, 5, and 7 are judgment, and that's where a return gets either defensible or fragile. The situations where practitioners most consistently recommend professional help: large gains, net losses, sports-heavy activity, break-even years under a possible wagering characterization, multi-platform trading, offshore crypto-settled venues, a 1099 that doesn't match the economics, and anything involving an entity. TraderTax-matched CPAs work with active traders across futures, options, crypto, prop firms — and now prediction markets.

What Could Change This Reporting Process?

Several things, none of them settled. The 2026–2027 Treasury and IRS priority guidance plan, generally expected around September or October, is the nearest checkpoint. Also pending: the CFTC's proposed prediction-markets rule, finalization of the proposed wagering-loss regulations, two federal appeals, and platform form practices for tax year 2026.

The specific watch list, so this page's shelf life is legible:

• Any IRS tax guidance at all — a revenue ruling, notice, FAQ, or form instruction addressing event contracts would reshape every step above. The 2026–2027 priority guidance plan is the nearest place it could surface.
• The CFTC's June 2026 proposed rule on prediction markets and public-interest determinations, with comments due July 27, 2026. Regulatory, not tax — but it feeds the "is this gaming?" question the tax debate borrows from.
• REG-113229-25 finalization — the proposed wagering-loss and reporting regulations, still proposed as of late July 2026, including how the 90% computation is read.
• Ninth and Fourth Circuit merits decisions, following the Third Circuit's April 2026 ruling for Kalshi. A circuit split makes Supreme Court review more likely, and the gambling question keeps the wagering characterization alive.
• Platform form practices for tax year 2026 — what Kalshi, Polymarket US, Robinhood, IBKR, and the newer venues actually issue in January 2027, including whether Polymarket US announces a 1099 policy at all.
• The NC and KY operator excises taking effect January 1, 2027 — worth watching for fee pass-through and for other states following.

Frequently Asked Questions

Which tax form do I use to report prediction market profits?

It depends on the characterization chosen, because the IRS has published no tax guidance on event contracts. Capital treatment runs through Form 8949 and Schedule D, Section 1256 through Form 6781, wagering through Schedule 1 line 8b with losses on Schedule A, and ordinary income through Schedule 1 line 8z.

Do I report gross winnings or just net profit?

That depends on the treatment too. Capital and Section 1256 approaches report per-position gains and losses that net inside the return. A wagering approach puts gross winnings in income with losses taken separately as an itemized deduction. The ordinary-income approach implicitly nets, though no authority confirms that netting.

What if my platform never sent me any tax form?

That is common and does not change anything. Under IRC §61 the income is taxable whether or not a form arrives, and most prediction-market venues issue no comprehensive trade-level 1099 for event-contract profits. Traders typically report from exported trade history and the platform's own profit-and-loss statement.

Is it Schedule 1 line 8b or line 8z?

They are two different treatments, not two names for one. Line 8b is the gambling-winnings line used under a wagering characterization, with losses claimed separately on Schedule A line 16. Line 8z is the catch-all other-income line used under an ordinary-income characterization, entered with a short description.

Why does my platform CSV show numbers 100 times too big?

Kalshi's transaction-history export reportedly stores values in cents rather than dollars, so summing the raw columns without dividing by 100 overstates profit one hundred-fold. It is one of the most commonly documented errors in prediction-market tax prep. Platform profit-and-loss statements and most tax tools already handle the conversion.

Do I owe tax on winnings I never withdrew?

Typically yes. The taxable event is generally when a contract settles or is sold, not when cash leaves the platform. Profit sitting in a platform balance on December 31 is normally taxable for that year, and deposits minus withdrawals is not the figure the tax math runs on.

Where do I enter prediction market trades in tax software?

No mainstream consumer package has a dedicated prediction-market flow as of the most recent filing season. Traders typically choose among entering transactions manually as capital dispositions, using the contracts-and-straddles interview for Section 1256, or using a miscellaneous-income entry. Each path implies a different treatment, so the choice deserves a conversation first.

Do I need quarterly estimated payments on prediction market profits?

Often. No prediction-market platform appears to withhold tax, so nothing is prepaid on a winning year. Traders expecting to owe $1,000 or more typically make quarterly payments using Form 1040-ES, commonly anchored to the 100% or 110% prior-year safe harbor. A CPA can size the amounts for a specific situation.

Should I attach a disclosure statement to my return?

Practitioners often do when taking an aggressive position. Form 8275 is the disclosure statement commonly attached when a filer claims Section 1256 treatment for event contracts, since the swap exclusion cuts against it. Whether disclosure fits a particular return is a judgment call for the CPA signing it.