If the winner selects the cash option, a mandatory 24% federal withholding tax is applied immediately, reducing the $309.7 million prize to $235.4 million. The advertised jackpot amount for UK players is listed separately at £377 million, or approximately $503.5 million, a figure that appears notably lower than the $707 million U.S. prize. Wednesday's rollover keeps the Powerball jackpot on track to become the second-largest completed lottery prize of the year, behind only the $800 million Mega Millions jackpot claimed by a Florida ticket buyer earlier this week. The largest Powerball jackpot actually won so far in 2026 stands at $250.8 million, claimed by a lottery player from Arkansas. The odds facing anyone attempting to win the Powerball jackpot remain extraordinarily long.