Sports vs. Financial Event Contracts: Why Prediction Market Tax Analysis Requires a Contract-by-Contract Approach

Last Updated on August 23, 2026 by Patrick Camuso, CPA

Quick answer (read this first)

Prediction market contracts should not be assigned a single federal income tax treatment merely because they trade through the same platform or use similar payout structures. Contracts referencing sporting events, asset prices, economic measurements, interest rates, elections, weather, and other events can present materially different facts under federal tax provisions that were not written specifically for modern prediction markets.

The referenced subject is relevant to that analysis, but it does not determine the federal tax result. Depending on the contract and transaction, the analysis may involve the legal rights created by the instrument, the manner in which the position is acquired or ends, the capacity in which the taxpayer holds it, and the requirements of provisions such as Sections 165(d), 1234, 1234A, and 1256.

For purposes of this article, “sports” and “financial” are descriptive shorthand for the subject referenced by a contract. They are not federal tax classifications, CFTC classifications, or mutually exclusive legal categories. Nothing in this article concludes that a sports-referenced contract is a wagering transaction, that a financial-reference contract is nonwagering, or that either category receives a particular capital, ordinary, Section 1256, or other tax treatment.

The phrase contract-by-contract approach likewise describes a fact-sensitive analytical approach, not a formal methodology prescribed by Treasury or the IRS. It does not mean that every trade or fill necessarily requires a separate legal opinion. Materially identical contracts may be analyzed together where the relevant terms and facts are the same. The point is that the analysis should reach the actual contracts and transactions before a treatment is applied across a larger population of activity.

This article addresses federal income tax treatment only. It does not address whether a particular event contract constitutes gaming or wagering under state law, whether a product may lawfully be offered, or its treatment under the Commodity Exchange Act. For the broader federal framework, see our prediction market tax guide.

Why the Contract Being Traded Matters

Prediction markets allow participants to trade contracts tied to subjects that historically would not have appeared within a common market structure. The same account can contain positions based on professional sports, digital asset prices, inflation data, interest rates, elections, weather, and other measurable events. From an execution perspective, those contracts may look substantially alike. They can trade through the same interface, use similar collateral arrangements, and produce similar payouts when specified conditions are satisfied.

Federal income tax law does not classify transactions solely by those characteristics. The Internal Revenue Code contains provisions addressing wagering transactions, capital assets, options, specified exchange-traded contracts, traders, dealers, hedging transactions, losses, and other contractual rights. Each provision has its own requirements, and its relevance depends on the contract and transaction being considered.

A platform-wide assumption can therefore obscure facts that may matter under the applicable federal tax provisions. Contracts offered through the same venue can differ in their referenced subject, legal rights, settlement terms, transfer mechanics, or the events through which the taxpayer’s position changes or ends.

A contract-by-contract approach does not require assigning a predetermined tax treatment to every product category. It requires identifying material factual and legal differences before determining whether a common treatment can appropriately be applied across a larger trading population. For sports prediction market taxes, the federal analysis begins with the specific contract and transaction rather than the platform label or the fact that the contract references a sporting event.

How Section 165(d) Can Enter the Analysis for Sports-Referenced Contracts

Contracts referencing sporting events may require consideration of Section 165(d), which governs deductions for losses from wagering transactions. Whether that provision applies to a particular prediction market transaction remains a separate federal income tax question.

As of the date of this article, Camuso CPA is not aware of published Treasury or IRS guidance specifically classifying prediction market event contracts under Section 165(d) or establishing that exchange-traded contracts tied to sporting events constitute wagering transactions as a category.

Prediction market activity can involve facts including secondary trading, liquidity provision, related positions, automated execution, and different contractual and clearing structures. The significance of those features depends on the federal tax issue under consideration, and none determines wagering or nonwagering treatment by itself. The regulatory status of a venue likewise answers a different legal question. Commodity Exchange Act treatment can provide relevant information about a contract and its market structure, but it does not establish the application or nonapplication of Section 165(d) under the Internal Revenue Code.

A sports reference may therefore make the wagering provisions relevant to the analysis without supplying the federal tax conclusion.

Why Financial and Economic References Can Raise Different Threshold Questions

Contracts whose settlement depends on an asset price, index, interest rate, economic statistic, or other financial or economic measure can present questions under provisions dealing with property and financial contracts. Depending on the instrument and transaction, the analysis may involve capital asset principles, the sale or exchange requirement, Section 1234, Section 1234A, or the defined contract categories in Section 1256. A financial reference does not establish that any particular one of those provisions applies.

A contract tied to the price of Bitcoin, for example, has a factual relationship to an identifiable asset. A CPI contract depends on an economic measurement. A contract concerning a Federal Reserve decision may depend on a policy event. Those differences can matter when applying statutes whose operation depends on the nature of the contractual right, the existence of relevant property, or membership in a defined category of financial contracts.

Section 1256 illustrates why the analysis cannot stop with an exchange or product label. The statute applies to defined categories of contracts, and the requirements for the relevant category still must be satisfied. Exchange status can be relevant to part of that analysis without establishing the ultimate federal tax treatment. Our separate Section 1256 prediction market analysis addresses that framework in greater detail.

Option analysis presents a similar threshold issue. Binary economics or commercial use of option terminology does not eliminate the need to determine whether the contractual rights satisfy the federal tax provision being considered. Describing a product as a financial event contract therefore identifies part of its factual setting. It does not establish capital, ordinary, Section 1256, or another federal tax treatment.

“Financial” Is Not a Federal Tax Category

Even the broad distinction between sports and financial contracts can become misleading if it is treated as a tax taxonomy.

A Bitcoin price contract references the value of an identifiable asset. An equity-index contract references a measure derived from underlying securities. A CPI contract depends on an economic statistic. A contract concerning a Federal Reserve decision depends on a policy action. Those products can share similar trading and payout mechanics while presenting different questions under particular provisions of the Code. The same caution applies to sports-related products. A game-outcome contract, a player-statistic contract, a spread or total, and a multi-event product may differ in their terms and settlement mechanics even though each references sports.

The analysis therefore has to reach below the broad product label when the applicable federal tax provision requires more specific facts. The relevant inquiry concerns the legal and factual relationship required by that provision, not whether the product can generally be described as “sports” or “financial.”

This is also why the article does not propose a sports-versus-financial classification system. Those descriptions help identify factual differences that may warrant further analysis; they do not prescribe the resulting tax treatment.

Contract Terms Can Matter More Than the Market Title

A prediction market title describes the subject being traded. It does not necessarily describe the legal rights held by the participant.

Depending on the federal tax issue under consideration, relevant facts can include whether the participant acquires a separately identifiable contractual position, whether that position can be transferred, whether an exercise right exists, whether settlement occurs automatically, whether the payout is fixed or variable, and what occurs when the participant acquires an economically opposite position.

Platform mechanics can matter for the same reason. A user interface may describe a transaction as a sale or a close while the underlying mechanism involves acquisition of another position, pairing, netting, novation, or some other contractual event. The federal tax analysis depends on the legal effect of what occurred rather than the terminology selected for the trading interface.

This can be significant where a federal tax rule turns on the existence of an actual or statutorily deemed sale or exchange. Even if a contractual position is determined to be a capital asset in the taxpayer’s hands, that determination does not by itself establish the character of every subsequent payment, settlement, or termination involving the position.

The contractual terms and transaction records therefore remain relevant even where a platform uses familiar trading terminology.

Why the Way a Position Ends Matters

The same contract can reach different endpoints during its lifecycle. A participant may dispose of a position before the underlying event is resolved, acquire another position that changes the economic exposure, hold the contract through settlement, receive no payment at resolution, experience a correction or void, or continue to hold the contract at the end of the taxable year.

Those events can affect the taxpayer’s contractual rights in different ways. Their federal tax consequences depend on the applicable law and facts rather than on a predetermined rule associated with the product category.

This distinction is particularly important in active trading. A trader may regard an exposure as economically closed once the remaining market risk has been neutralized, while the tax analysis may still require an understanding of what occurred with respect to the contractual positions involved. Economic closure by itself does not establish a particular federal tax event or character.

A zero-payment resolution raises related questions. The existence of an economic loss does not establish its federal tax character, the taxable year in which it is recognized, or whether it is currently allowable. Basis, finality, recovery rights, related positions, and other applicable provisions can remain relevant.

Character, recognition, deductibility, timing, and ultimate loss utilization therefore require separate consideration. Our article on prediction market loss deductions addresses those issues in greater depth.

Why the Section 165(d) Amendment Makes Classification More Consequential

For taxable years beginning after December 31, 2025, Section 165(d) generally limits the deduction for losses from wagering transactions to 90 percent of those losses, with the deduction further limited to gains from wagering transactions. The statute also treats certain otherwise allowable deductions incurred in carrying on wagering transactions as wagering losses for purposes of the limitation. As of the date of this article, Treasury and the IRS have proposed amendments to the wagering-loss regulations to reflect the statutory change. The proposed regulations address the operation of the amended loss limitation; they do not classify prediction market contracts for federal income tax purposes.

Where Section 165(d) applies, the amended limitation can cause the amount deductible for federal income tax purposes to differ materially from the taxpayer’s net economic result. The statute does not determine which prediction market transactions are wagering transactions, so the threshold characterization question remains dependent on the relevant law and facts.

Measurement can present an additional issue. As of the date of this article, Camuso CPA is not aware of published Treasury or IRS guidance establishing a universal prediction market session or aggregation rule for continuous electronic event-contract trading. Guidance developed in other wagering settings should therefore not be assumed to prescribe the proper measurement unit for prediction market activity without further analysis.

For professional participants, the issue can become material quickly. High-volume activity may involve substantial numbers of transactions, both sides of a market, related contracts, several venues, and positions that remain open across reporting periods. An account-level annual net profit figure may not contain the information necessary to apply whatever federal tax rules ultimately govern the activity.

Market Maker and Trade or Business Status Do Not Determine Contract Treatment

Professional prediction market participants can have operating facts that differ substantially from those of an occasional trader. A market-making firm may operate continuously, use proprietary software, employ personnel, quote both sides of markets, manage position risk, and earn returns through spreads, liquidity incentives, or short-duration pricing differences.

Those facts can be relevant to taxpayer-level questions, including whether the activity constitutes a trade or business under Section 162. They do not establish the federal tax character of every contract held by the business.

The term “market maker” describes a market function and does not independently establish dealer status for federal income tax purposes. Similarly, the existence of a Section 162 trade or business does not determine whether a particular contractual position produces capital, ordinary, wagering, Section 1256, or other treatment.

A professional trading firm can therefore conduct an integrated business while holding contracts for which different federal tax provisions require consideration. Taxpayer capacity and contract-level treatment form separate parts of the overall analysis. Our prediction market trade or business analysis addresses the capacity question in greater detail.

The Analysis Eventually Becomes an Accounting Issue

For a taxpayer making a relatively small number of trades, differences among contracts may be manageable during return preparation. At higher volumes, the tax analysis becomes increasingly dependent on the quality and organization of the underlying records. A trading firm can maintain books that accurately state its economic profit while still lacking information needed to support the federal tax treatment ultimately reported.

For example, an account containing all prediction market activity may correctly report aggregate economic results while failing to distinguish materially different contract types, establish the relevant basis information, identify how particular positions ended, preserve information concerning related positions, or identify contracts remaining open at year-end. Those distinctions can matter if different portions of the trading book ultimately fall under different character, timing, recognition, or loss rules.

The records therefore need to preserve the facts on which the reported treatment depends. The appropriate accounting structure will vary with the taxpayer’s activity, volume, venues, and reporting requirements. The relevant objective is that the tax analysis and amounts reported can be supported by the underlying records.

An annual platform statement or account-level P&L can form part of that record without necessarily resolving the underlying tax questions. Our prediction market accounting guide discusses the recordkeeping and reconciliation issues in greater detail.

What This Means in Practice

The purpose of a contract-by-contract approach is to avoid reaching a federal tax conclusion before the characteristics of the relevant contracts and transactions are understood. It is not a public classification chart, and it does not imply that every contract needs to be assigned a different tax treatment.

A sports reference may make Section 165(d) relevant to the inquiry without establishing that the transaction is wagering. A financial or economic reference may make property or financial-contract provisions relevant without establishing capital or other financial-product treatment. The way a position is transferred, offset, settled, corrected, or held can introduce additional factual distinctions independent of the referenced subject.

For professional traders, market makers, funds, and other high-volume participants, these questions can extend beyond the treatment of an individual contract. Depending on the activity, they can affect the information needed for year-end close, book-to-tax reconciliation, entity and owner reporting, and the analysis supporting the return.

At that level, return preparation is generally the final reporting stage of a broader process in which the taxpayer first has to understand the contracts, transactions, and records being reported.

How Camuso CPA Helps

Camuso CPA advises professional prediction market traders, market makers, proprietary trading firms, and other sophisticated participants on federal tax classification, tax accounting, reconciliation, and reporting issues involving event contracts.

Where a trading book includes materially different products, significant gains or losses, multiple venues, or unresolved federal tax positions, those issues may warrant analysis before year-end reporting and return preparation are completed.

Request an Prediction Market Tax & Accounting Assessment

Frequently Asked Questions

Are sports prediction market contracts automatically wagering transactions for federal tax purposes?

No. As of the date of this article, Camuso CPA is not aware of published Treasury or IRS guidance establishing that every sports-referenced prediction market contract constitutes a wagering transaction. Section 165(d) may be relevant to the analysis, but its application depends on the particular transaction and applicable authorities.

Are financial prediction market contracts automatically capital transactions?

No. A financial reference does not determine federal tax character. Depending on the particular contract and transaction, property principles, sale or exchange rules, Sections 1234 and 1234A, Section 1256, and other provisions may require consideration.

Does this article conclude that sports and financial contracts belong in different federal tax categories?

No. “Sports” and “financial” describe the subject referenced by a contract for purposes of identifying potentially relevant factual differences. They are not proposed federal tax classifications, and this article does not assign either group a predetermined tax result.

Does CFTC regulation determine whether a sports contract is wagering for federal tax purposes?

No. Commodity regulation and federal income tax characterization arise under different statutory regimes. Regulatory treatment can provide relevant information about a contract but does not determine the application of Section 165(d) under the Internal Revenue Code.

Does a contract-by-contract approach mean every individual trade requires a separate tax opinion?

No. The phrase refers to analyzing the actual contract terms and relevant transaction facts before applying a tax treatment. Materially identical contracts may be analyzed together where the facts and governing terms relevant to the tax issue are the same.

Can every contract on the same prediction market platform use the same tax treatment?

That depends on the contracts and applicable law. Products traded through the same venue can differ in their referenced subject, contractual rights, and transaction mechanics. Those differences should be evaluated before a common treatment is applied across the activity.

Does market maker status determine the tax treatment of prediction market contracts?

No. Market maker status can provide relevant information about how a taxpayer’s business operates, but it does not independently determine contract character or establish dealer status for federal income tax purposes.

Why can the way a position ends affect the analysis?

Different transaction events can affect the taxpayer’s contractual rights differently. A pre-resolution transfer, an economic offset, contractual settlement, zero-payment resolution, correction, and year-end open position therefore should not be assumed to have identical federal tax consequences.

Why did Section 165(d) become more significant beginning in 2026?

For taxable years beginning after December 31, 2025, amended Section 165(d) generally limits deductions for losses from wagering transactions to 90 percent of those losses, subject to the separate limitation based on wagering gains. The amendment increases the consequences of the wagering analysis where Section 165(d) applies.

Do professional traders need separate accounting systems for different event contracts?

Not necessarily. The records should preserve the distinctions needed to support the treatment ultimately reported. The appropriate accounting structure depends on the taxpayer’s activity, volume, venues, and reporting requirements.

When should a professional prediction market trader address these issues before filing?

Earlier analysis may become more important where the taxpayer has material trading volume, several product types, significant gains or losses, market-making or systematic activity, multiple venues, pass-through entity reporting, or uncertainty concerning prior-year treatment.