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Practice · lesson 06 of 06

Taxes on event contracts: the US contour

The questions that determine treatment, why none of them has a settled answer, and what to keep records of. Not tax advice.

Why there is no simple answer

Event contracts are new enough as a retail instrument that their tax treatment has not been comprehensively settled by statute, regulation or case law in the United States. Different plausible classifications lead to materially different outcomes, and which one applies can depend on the venue, the specific contract, and facts about you — whether you trade as an investor or as a business, for instance.

That uncertainty is the honest headline, and it is why this article deliberately gives you questions rather than answers. Anyone offering a confident single rule for how event contract gains are taxed is either simplifying a genuinely open question or describing one specific situation as though it were general.

Everything below is a description of the framework as it stands at the time of writing. It is not advice, it may be out of date by the time you read it, and it is not a substitute for a professional who can look at your actual positions.

A $100 position at 68¢

Contracts bought at 68¢
147
Payout if it resolves YES
$147
Profit before fees
$47
Loss if it resolves NO
$100

The classification question

Several regimes could plausibly apply. Gains might be capital, taxed at short- or long-term rates depending on holding period. They might be ordinary income. If a contract counts as a regulated futures contract, the mark-to-market rules for those instruments apply instead, under which positions are marked at year end and gains are split between long-term and short-term treatment by a fixed ratio regardless of how long they were held. Or the activity might be characterised as gambling.

Whether event contracts traded on a CFTC-regulated exchange qualify as regulated futures contracts for this purpose is not settled, and the answer matters a great deal: the futures regime changes both the rate and the timing, since it taxes unrealised positions at year end. Whether a contract traded on a non-US or non-regulated venue could ever qualify is a further question again.

The characterisation also interacts with how you trade. Frequency, intent and whether the activity amounts to a trade or business are the facts that push a situation between regimes, and they are exactly the facts a professional needs from you.

Losses are where the regimes diverge most

If gains are capital, losses offset capital gains, and an individual may deduct a limited amount of net capital loss against ordinary income each year — $3,000 at the time of writing — carrying the remainder forward indefinitely.

If the activity is gambling, losses are deductible only against gambling winnings in the same year, only if you itemise, and never carried forward. A year with $40,000 of winning positions and $45,000 of losing ones can therefore produce taxable income under the gambling regime and a deductible loss under the capital regime. That is not a rounding difference.

Under the futures regime the arithmetic is different again, with its own loss carryback election. This is the single strongest reason to establish the classification early rather than in April: the treatment of a losing year is where the regimes are furthest apart, and by then the year is already over.

What form arrives, and what it does not tell you

Form W-2G is the information return for certain gambling winnings. A CFTC-regulated derivatives exchange is not a gambling operator for that purpose, so a trader on such a venue would more plausibly receive a return in the 1099 series, which is what financial intermediaries issue.

Which form a given venue issues, whether it issues one at all, and what it reports on it are facts about that venue’s practices. We do not state them here — they belong on the platform pages where they can be maintained, and they change.

What matters more is that the form does not determine your treatment. An information return reports what a payer thinks happened; your return states your position, and the two can differ legitimately. A form is evidence, not a ruling — and the absence of one does not remove a reporting obligation.

Crypto settlement adds a second layer

Positions funded and settled in a stablecoin involve a second set of taxable events on top of the trading itself. In the US, disposing of a crypto asset is generally a property transaction, so converting dollars to a stablecoin, using it, and converting back can each be a disposal with its own gain or loss — usually small, since a stablecoin is designed not to move, but small is not zero and the events still need recording.

This is why on-chain positions generate more bookkeeping than their dollar value suggests. Every transfer needs the date, the amount and the value at the time, and there may be many of them for a single trading position.

State tax is a further layer that may or may not follow the federal characterisation. It is out of scope here and it is not out of scope for your return.

What to keep

Records make the classification question answerable and their absence makes it expensive. Keep, per position: the market and its resolution criteria, every fill with date, price and quantity, every fee charged, the settlement date, and the settlement outcome.

For on-chain positions, add the value of any crypto asset at each acquisition and disposal, and the transaction identifiers. Most venues offer an export, and downloading it while you still have account access is easier than reconstructing it later.

Then take it to a professional who handles derivatives or trading clients. The framework above is a map of what they will ask; it is not a substitute for them, and we are not licensed to be one.

Converting to odds you already know

Decimal odds are 1 ÷ price. American odds are the same probability expressed as a stake-to-win ratio.
Contract priceImplied probabilityDecimalAmerican
10¢10%10.00+900
25¢25%4.00+300
50¢50%2.00+100
68¢68%1.47−213
80¢80%1.25−400
95¢95%1.05−1900

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CFTC-regulated event contract exchange

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Common questions

Is this tax advice?

No. We are not tax advisers, we are not licensed to give tax advice, and nothing here is a recommendation about how to report anything. The treatment of event contracts in the US is genuinely unsettled, and your situation depends on facts we do not know. Consult a qualified professional.

Do I owe tax if I never withdrew any money?

Very possibly. Tax generally attaches to the realisation of gains, not to moving money to a bank account — and under the mark-to-market regime for regulated futures it can attach to unrealised positions at year end. The intuition that untouched money is untaxed money does not hold in either case. Ask a professional.

Does it matter whether the platform is US-regulated?

It can matter for several of the questions above, including which regime plausibly applies and what reporting the venue does. It does not change whether income is reportable. Non-US venues can also bring additional reporting obligations for US taxpayers, which is another reason to raise this with someone qualified rather than resolve it from an article.