Last Updated on October 2, 2026 by Patrick Camuso, CPA
Quick answer
The short answer: Coinbase prediction-market activity can create taxable gain or loss, and the tax treatment depends on the transaction that actually occurred.
What matters first: Coinbase currently offers Prediction Markets through Coinbase Financial Markets, Inc. (CFM). Coinbase’s current product documentation identifies Kalshi as the operator of the underlying prediction markets. Customers can fund Prediction Markets with settled USD or USDC, which means the tax file may contain both event-contract activity and separate digital-asset transactions
What changed recently: On September 28, 2026, the CFTC registered Coinbase Clearing LLC as a derivatives clearing organization. Coinbase describes the new entity as the first USDC-native clearinghouse and says it can support fully collateralized products with USDC collateral and 24/7 settlement.
How Coinbase Prediction Markets Work
The Coinbase interface brings several financial products into one customer experience. The customer maintains a Coinbase, Inc. account and opens a CFM account for derivatives activity. CFM’s account agreement states that CFM acts as the customer’s futures commission merchant and may execute, clear and carry futures contracts and event contracts. Coinbase’s current Prediction Markets documentation identifies Kalshi as the operator of the prediction markets available through Coinbase.
Why the market structure matters for tax reporting
A customer might sell Bitcoin, receive USD, move funds into the CFM account, purchase an event contract, sell that contract before resolution or hold it through settlement, and later receive cash back in the primary Coinbase account. The records may present those steps within one Coinbase ecosystem. The tax work still has to identify each transaction and determine its treatment.
The same issue appears in third-party reporting. Coinbase uses Form 1099-DA for digital-asset sales and exchanges. Coinbase also uses Form 1099-B for certain financial instruments. The current detailed Form 1099-B eligibility page lists equities, futures or perpetuals and certain institutional OTC options. Prediction-market event contracts are not expressly identified in that current eligibility list. The correct reporting analysis starts with the product, the account and the transaction, followed by the tax document actually furnished for the year.
Coinbase Clearing is a meaningful 2026 development
Coinbase’s U.S. derivatives infrastructure changed on September 28, 2026. The CFTC registered Coinbase Clearing LLC as a derivatives clearing organization and authorized it to clear fully collateralized futures, options on futures and swaps. Coinbase describes Coinbase Clearing as the first USDC-native clearinghouse. Its announcement says the clearinghouse is designed around USDC collateral and 24/7 settlement. Coinbase now describes its regulated derivatives infrastructure as including CFM as the FCM, Coinbase Derivatives as the DCM and Coinbase Clearing as the DCO.
This matters for Prediction Markets because it gives Coinbase its own regulated clearing infrastructure for fully collateralized products. It also makes USDC a more important part of Coinbase’s broader derivatives architecture. Coinbase has not publicly documented a migration of the existing retail Prediction Markets product onto Coinbase Clearing in the sources reviewed.
For tax purposes, the transaction should be reconstructed from the CFM records and the market documentation that actually applies to the customer’s position. For future years, the exchange and clearing architecture should be rechecked.
Funding Coinbase Prediction Markets with USD
Coinbase permits settled USD to be used for Prediction Markets. The CFM agreement requires event contract positions to be fully collateralized, meaning the customer must have enough funds available to cover the maximum loss before entering the position. Where the customer already holds USD, moving cash into the Prediction Markets account does not introduce a digital asset basis calculation. The tax analysis can focus on the event contract transactions themselves and the related fees, settlement and year-end positions.
The analysis becomes more involved when the customer sells or exchanges a digital asset to create that funding.
USDC to Fund Prediction Markets
Coinbase currently allows customers to purchase prediction contracts using settled USDC. Coinbase’s newly registered clearinghouse is now expressly designed to support USDC collateral within Coinbase’s broader derivatives infrastructure. USDC is also a digital asset for federal tax purposes. Where a taxpayer actually sells or exchanges USDC, the disposition can require basis and gain-or-loss reporting even when the economic gain is small.
A customer using USDC should preserve enough data to determine whether Coinbase recorded a sale, exchange, conversion, transfer, collateral movement or another type of transaction.
Form 1099-DA
Form 1099-DA reports digital-asset sales and exchanges. For a Coinbase customer who sells Bitcoin or another digital asset to fund Predictions, the form can report the digital asset transactions. That information does not provide the tax characterization of the event contract purchased afterward.
Federal reporting rules permit specialized reporting methods for qualifying stablecoins, including aggregate reporting in certain circumstances. As a result, a trader’s USDC transaction history may contain more transaction-level detail than the eventual information return.
For prediction-market taxes, this can leave three records that need to be understood together:
- the Coinbase digital-asset transaction history;
- the CFM derivatives records; and
- the Form 1099-DA or other information returns issued for the year.
For the broader digital-asset reporting rules, see Camuso CPA’s 1099-DA guidance and the prediction market reporting discussion in the State of U.S. Prediction-Market Tax and Accounting 2026.
Does Coinbase issue Form 1099-B for Prediction Markets?
Coinbase’s current public documentation does not provide a prediction-market-specific Form 1099-B rule. Coinbase explains that Form 1099-B is used for certain securities, commodities, futures, options and other financial instruments. Its current eligibility criteria specifically identify equities, futures or perpetuals and institutional OTC options.
The practical approach is to review the year-end tax documents actually issued for the account and reconcile those documents to the underlying CFM activity. A Form 1099-B, if issued, is an information-reporting document. Its presence can be important for return preparation but the underlying federal tax treatment still depends on the applicable law and the actual transaction.
For a broader discussion of prediction-market information reporting, see Camuso CPA’s Prediction Market Tax Reporting guidance.
How Coinbase prediction contracts settle
Event contracts carried through CFM are fully collateralized. The customer must have enough funds available to cover the contract’s maximum potential loss before entering the position. CFM’s agreement states that event contracts are generally cash settled under the applicable exchange or clearinghouse rules. When a market resolves, the payout is credited to the customer’s Prediction Market balance. Funds can be used for additional prediction market trading and later transfer automatically into the primary Coinbase account according to Coinbase’s sweep schedule.
One position can generate events:
- execution;
- sale before resolution, where applicable;
- market close;
- official resolution;
- settlement;
- credit to the Prediction Market balance; and
- transfer back to the primary Coinbase account.
The accounting file should preserve those events separately. A later cash sweep reflects movement of settled funds between account environments.
How Coinbase Prediction Markets Are Taxed
The relevant federal analysis depends on the event contract, the transaction endpoint and the taxpayer’s facts.
Among the issues that can matter are:
- whether a position was sold before resolution;
- whether the contractual right is a capital asset in the taxpayer’s hands;
- how a contract held through final resolution should be treated;
- the possible application of wagering provisions;
- potential Section 1256 treatment;
- loss limitations; and
- trade-or-business and taxpayer-capacity issues.
Camuso CPA’s Prediction Market Tax Guide addresses those issues across prediction-market products.
The regulated structure surrounding the contract is part of the factual analysis. CFM’s FCM status, Kalshi’s market status and Coinbase Clearing’s new DCO registration all help establish the product environment. Federal tax characterization still requires application of the relevant tax law to the particular contract and transaction.
Why Traders Need Accounting
At low volume, a Coinbase Predictions account may be manageable from the statements and transaction history. Professional activity quickly creates a different accounting problem. A high-volume trader can have event-contract transactions, digital-asset sales used for funding, recurring USDC activity, fees, cash sweeps, open positions, several product structures and multiple year-end information returns.
The same issue becomes more important for market makers and trading firms. Camuso CPA’s Prediction Market Tax Guide for Market Makers, Professional Traders & Trading Firms addresses the additional federal tax issues that can arise at professional scale.
When professional accounting or tax support becomes relevant
A small number of straightforward USD-funded positions may require relatively limited reconciliation.
Complexity increases with transaction volume, digital-asset funding, recurring USDC use, multiple contract types, year-end open positions, several prediction-market venues, incomplete source data or a material federal tax position.
Camuso CPA’s Prediction Market Accounting practice addresses transaction reconstruction, reconciliation and year-end accounting. The Prediction Market Tax practice addresses federal tax characterization and compliance.
Coinbase Prediction Market Tax FAQ
Are Coinbase prediction markets taxable?
Prediction market activity can generate taxable gain or loss. The federal treatment depends on the contract, the transaction and the taxpayer’s facts.
Are Coinbase prediction markets taxed like cryptocurrency?
The event contract and the digital asset funding activity should be analyzed separately. A crypto sale or exchange used to create funding can generate a digital-asset tax event. The event contract has its own federal tax analysis.
Does Coinbase issue a 1099 for Prediction Markets?
Coinbase maintains information reporting systems for digital assets and certain financial products. Its current public Form 1099-B eligibility guidance does not expressly identify ordinary Prediction Markets event contracts. The tax forms actually furnished for the year should be reconciled to the underlying CFM records.
Does Form 1099-DA apply to Coinbase Prediction Markets?
Form 1099-DA can apply to digital assets sold or exchanged in connection with funding the account. The form reports the digital-asset transaction. The event contract remains a separate tax-analysis issue.
Is using USDC for Coinbase Predictions automatically taxable?
The answer depends on the transaction Coinbase records. An actual USDC sale or exchange can create a digital asset disposition. The customer should preserve the funding records needed to identify what occurred.
This article is provided by Camuso CPA for general informational purposes and does not constitute legal, tax, accounting, or investment advice. Tax laws and regulations are evolving rapidly and the information presented may not reflect current guidance. Reading this article does not create a CPA-client relationship. For advice on your specific situation, schedule a consultation with Camuso CPA.
Camuso CPA, PLLC
