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If there's a winner or winners in Wednesday's drawing, they will be given a choice of how to take the money: either as an annuity or a lump sum.
Choosing the annuity option distributes the jackpot over 30 payments, which increase by 5% each year to keep up with the cost of living.
The lump sum means taking the entire cash value paid at once, but there's a catch: The lump sum is less than the value of the total jackpot. For Wednesday's drawing, the lump sum would be $443.3 million.
Either is a staggering amount of money.
But winning can quickly turn into a nightmare if you mismanage your jackpot, which past winners have been known to do. To avoid that fate, most people would do better to choose the annuity option, rather than the lump sum.
Unless you're supremely good with money and already have a team of advisers who have proven themselves over time, the annuity is the more cautious choice. Even Mark Cuban agrees.
Taking the annuity offers a degree of protection against blowing all your money in a short period of time - or being taken advantage of by a wayward financial adviser, family member, or friend.
As a certified financial planner, I have to admit I didn't buy a lottery ticket - the odds just aren't good enough for my money, or anyone's for that matter. But if I did, and if I happened to get lucky, my choice would be different. I would take the lump sum. But I wouldn't recommend that to just anyone.
Mathematically speaking, taking the lump sum offers greater potential for growing your wealth, as the chart below shows. But money is way more than math. From an emotional and risk-management perspective, most people will have better long-term success in sustaining their new-found wealth by stretching out the winnings over time.
This chart shows what happens when you invest your winnings. For the lump sum (green lines) you invest all of the winnings - $135.1 million after initial taxes - at once. For the annuity (red lines), you invest the annual post-tax winnings once you receive them each year.
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Whether you take the annuity or the lump sum, if you win today's Powerball jackpot you have the potential to be financially set for life. Either way, you have the potential to grow your account balance through smart investments and financial planning. You'll also pay a lot of taxes, no matter which option you choose.
Ultimately, the decision to take the lump sum or the annuity comes down to how well you know yourself, and how much you trust the people around you. It's the first of many choices you'll have to make with your windfall.
With all financial decisions, especially one of this magnitude, there's no rush. Don't be afraid to sleep on it. Take a breath. Take it in. And take your time making your choice.