Discussion paper
DP17515 US Taxation of Gambling Winnings and Incentives to Bet
Sports betting is growing rapidly in the US after its legalization by the Supreme Court in 2018. This paper describes the treatment of gambling winnings and losses in the federal tax code and shows how the system may incentivize some gamblers to substantially increase the scale of their betting in order to have a chance to win. This incentive stems from the fact that gambling losses can only be deducted if taxpayers are filing for itemized deductions, meaning the scale of gambling losses has to be large enough to push a taxpayer’s eligible deductions over the standard deduction. This
incentive to engage in large-scale betting applies mostly to lower and middle-income households.
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