If your winnings are reported on a Form W-2G, federal taxes are withheld at a flat rate of 24%. If you didn't give the payer your tax ID number, the withholding rate is also 24%.
How much are lottery winnings taxed? If you win nearly a billion dollars in the lottery, you definitely owe federal income tax on it. To start, 24% of your winnings are withheld for the IRS.
An Ace with any 10, Jack, Queen, or King is a Blackjack. If you have a Blackjack, the dealer pays you one-and-a-half times your bet unless the dealer also has a Blackjack, in which case it's a push and neither wins.