The Powerball jackpot just won't quit. After no one hit all winning numbers in Saturday night's drawing, the top prize has jumped to a whopping $750 million. And while players daydream about what they'd do with such a windfall, they should remember they wouldn't really end up with the advertised amount. Whether you take the prize as an annuity spread out over three decades or as an immediate, reduced lump sum, 24 percent of your win is withheld for federal taxes. Yet the top marginal tax rate of 37 percent means you'd owe a lot more at tax time. And state taxes typically are due as well. "The big impact on winnings is taxes," said certified financial planner Dan Routh, a wealth advisor at Exencial Wealth Advisors in Oklahoma City. "If you win, just realize how big the tax bill can be and make sure you're ready to handle it."

Largest U.S. lottery jackpots Rank Amount Date won Game Winner locations 1 $1.586 billion Jan. 13 2016 Powerball CA-FL-TN 2 $1.54 billion Oct. 23 2018 Mega Millions SC 3 $758.7 million Aug. 23 2017 Powerball MA 4 $750 million ? Powerball ? 5 $687.8 million Oct. 27 2018 Powerball IA-NY 6 $656 million Mar. 30 2012 Mega Millions KS-IL-MD 7 $648 million Dec. 17 2013 Mega Millions CA-GA 8 $590.5 million May 13 2018 Powerball FL 9 $587.5 million Nov. 28 2012 Powerball AZ-MO 10 $564.1 million Feb. 11 2015 Powerball NC-PR-TX

The Powerball jackpot, which now marks the fourth-largest U.S. lottery prize ever, has been climbing since late December with twice-weekly drawings yielding no top-prize winner. It's little wonder — your chance of matching all six numbers is about 1 in 292 million. For Wednesday night's drawing, the cash option — which most winners go with — is $465.5 million. The 24 percent federal withholding would reduce that amount by $111.7 million. Assuming you had no reduction to your taxable income, another 13 percent, or $60.5 million, would be due to the IRS. That's $172.2 million in all going to Uncle Sam.