Here's the tax bite on the $381 million Powerball jackpot

With the odds stacked against players hitting the Powerball jackpot, the only guaranteed eventual winner is Uncle Sam.

The top prize has jumped to an estimated $381 million for Wednesday night's drawing, following more than two months of twice-weekly drawings with no jackpot winner. Your chance of matching all winning numbers is about 1 in 292 million.

The IRS already has had a bonanza week: The person holding the Oct. 23 winning ticket for the $1.5 billion Mega Millions jackpot anonymously claimed the prize on Monday.

Brendan McDermid | Reuters A customer purchases Powerball lottery tickets for a $700 million jackpot at a newsstand in New York City, August 23, 2017.

Based on the federal tax withholding of 24 percent, the IRS gets more than $210 million right off the bat of the $877.8 million cash option that the winner chose (instead of an annuity). The state of South Carolina, where the ticket was sold, gets its own $61 million in taxes.

Separately, someone in New Jersey won the $267 Mega Millions jackpot last Friday. That person (or group of people) has a full year to come forward, so the IRS will have to wait for its piece.

And, of course, someone eventually will win the Powerball jackpot again, as well. Whether the person takes their loot as an annuity spread out over three decades or chooses the reduced lump-sum amount, the IRS will be waiting in the wings for its share.

show chapters How to win at winning the lottery    9:17 AM ET Tue, 26 Feb 2019 | 01:13

While lottery officials are required to withhold 24 percent for federal taxes, the top marginal tax rate of 37 percent means the winner would owe a lot more.

"I see the withholding as a good thing," said Cari Weston, a CPA and director of tax practice and ethics for the American Institute of CPAs. "When people come into a lot of money all at once, the last thing they're thinking about is their taxes."

For this $381 million Powerball jackpot, the cash option — which most winners go with — is $228.1 million. The 24 percent federal withholding would reduce that amount by $54.7 million.

Sign Up for Our Newsletter Your Wealth Weekly advice on managing your money SIGN UP NOW Get this delivered to your inbox, and more info about about our products and services.
By signing up for newsletters, you are agreeing to our Terms of Use and Privacy Policy. .investigation-wrapper .description{ text-align:center; padding-bottom:15px; } .nl-privacy{ font-size: 10px; padding-top: 20px; display:block; } .wildcard .investigation-wrapper { -webkit-box-shadow: 0px 0px 4px 0px #999999; /* Android 2.3+, iOS 4.0.2-4.2, Safari 3-4 */ box-shadow: 5px 5px 5px 0px #999989; } .subsection .investigation{ background: #efefef; border-radius: 3px; padding: 10px 20px 20px 20px; } .investigation small{white-space:normal;} .subsection .investigation h1{ text-transform: uppercase; text-align: center; font-family: "Gotham Narrow Ssm 5r"; margin-bottom: 0px; padding-bottom:0px; font-size: 18px; margin-top: 10px; word-spacing: 1.5px; color: #333333; } .subsection .investigation .headline_title { font-size: 28px; padding-top: 20px; display: block; font-family: "Gotham Narrow Ssm 7r"; padding-bottom:5px; } .subsection .email-info { background: rgba(74, 144, 226, 1); max-width: 140px; margin: 0px auto; text-align: center; padding: 6px 1px; color: #fff; border-radius: 5px; } .subsection .email-info { color:#fff; } .subsection .email-info:hover{ background: #2077B6; } body .subsection.investigation-wrapper{overflow:visible;}

Assuming the winner had no reduction to their taxable income — large charitable contributions made from the winnings, for example — another 13 percent, or $29.7 million, would be due to the IRS ($84.4 million in all).

That would leave the winner with $143.7 million before state taxes. That levy ranges from zero to more than 8 percent, depending on where the ticket was purchased and where the winner lives.

In other words, federal and state taxes combined could eat up more than 45 percent of winnings.

More from Personal Finance:
Employers are hiring, but don't expect a bigger paycheck
Your $50,000 annual income goes further in these cities
Retiring past age 65? Avoid costly Medicare mistakes

Subscribe to CNBC on YouTube.