Every time a Powerball billboard lights up with a ten-digit number, two things happen: ticket sales spike, and a small number of people do the math and quietly remember that the headline figure is not the check. Here is what really happens to an $825 million jackpot between the stage lights and your bank.
The first thing to know is that the advertised jackpot — the big number on the billboard — is the 30-year annuity value. It assumes you take annual payments that grow over three decades. Almost no one does that. Nearly every winner elects the lump-sum cash option, which is what the game actually has on hand to pay out. For a recent Powerball, that cash option has been running at roughly 47% of the advertised figure.
So the $825M billboard becomes a $385.3M cash-option line on your claim form. That's before a single tax has touched it.
The IRS requires lottery operators to withhold 24% of the prize up front for federal tax on any win over $5,000. That is not your federal tax — it is a deposit on your federal tax. On $385.3M, that's about $92.5M withheld at the window.
This is the first place most online calculators stop. It's also where most winners get blindsided: 24% is not the rate you owe. It's just the rate the government collects on the way out.
A $385M prize puts you square in the 37% federal bracket. Your actual federal tax bill on that prize is closer to 37%, not 24%. The 13-percentage-point gap — somewhere around $50 million on this prize — is money you owe the IRS at filing the following April.
This is the single biggest surprise for new winners. They see the withholding stub, they see a number that feels close enough to the full cash value, and they quietly spend months feeling wealthier than they are. Then Tax Day comes and the accountant hands over a piece of paper that ruins lunch.
If you only learn one thing from this post: 24% withheld is not 37% owed. Budget for the whole 37%.
Now the 50-state patchwork. Eight states don't tax lottery winnings at all (Florida, Texas, Tennessee, South Dakota, Washington, Wyoming, New Hampshire, and — notably for lottery players — California). Some states tax at a flat rate; most scale with brackets; a handful tax only nonresidents or residents differently.
On our example, a winner in Indiana pays a flat 2.95% on $385.3M — about $11.4M. A winner in New York would pay closer to 10.9%. A Californian pays zero on lottery winnings. Same ticket, different state, tens of millions in difference. That is not a typo.
Here is the layer that most calculators silently skip. Several jurisdictions levy a county or city income tax on top of state tax, and some of those jurisdictions specifically tax lottery prizes. In Marion County, Indiana (home to Indianapolis), the local tax adds another 2.02% — about $7.8M on this ticket — and, critically, it is not withheld by the lottery. You owe it at filing, on top of the federal true-up.
This is the part we spent the longest on at Lottery Dreams. The IRS is consistent. States are mostly consistent. Counties and cities are where the exotic rules live.
That is about 27% of the billboard. The other 73% is gone — to the annuity haircut, to the IRS, to your state, and (sometimes) to your county. The "billion-dollar" jackpots aren't billion-dollar prizes. They are hundreds-of-millions-of-dollar prizes. Still incredible. Still life-altering. But not the number you saw on the way home from work.
It matters because the way the jackpot is presented subtly nudges people toward playing when the headline number is biggest — when the ticket's expected return (already brutal) is at its worst after dilution from ticket sales. Knowing the real number doesn't change the odds; it does change how the number feels. And for the 62 million Americans who only ever buy a ticket when the jackpot makes the news, that feeling is the whole reason they're at the counter.
Put bluntly: the advertised jackpot is marketing. The real number is math. We built Lottery Dreams to make sure the math wins.
All figures illustrative, using publicly available 2026 federal brackets and Indiana/Marion County rates. Your number will be different — that's the whole point of having an app compute it. See the Tax Disclaimer.