How lottery annuity payments are calculated
Powerball and Mega Millions pay their annuity as 30 graduated payments: one immediately and 29 yearly payments, each 5% larger than the one before. For a jackpot J, the first payment is J × 0.05 ÷ (1.0530 − 1) — about 1.505% of the jackpot — and payment n is the first payment × 1.05n−1. The 30 payments add up to J.
For a $500 million jackpot the first payment is $7,525,718 and the last is $30,976,874, before tax.
Comparing the annuity with the lump sum
The lump sum is the cash value of the prize pool, usually less than half the advertised jackpot. The calculator taxes each annuity payment in its own year and the lump sum in one year, then discounts the annuity to today's money at the rate you choose. It shows the numbers; which option suits you depends on your circumstances.
The break-even return: when the cash wins
The real question behind lump sum vs annuity is whether you could invest the cash and beat the payments. The calculator answers it with a break-even return: the yearly return at which the after-tax annuity, discounted to today, equals the after-tax lump sum. For the $500 million example, a single winner in Texas keeps $141,800,000 from the cash, and the break-even return is 5.06%. If the cash can earn more than that each year, it ends up ahead; if it earns less, the annuity pays more.
Compare the rate with what safe investments pay and with what you expect from riskier ones, and remember that investment returns are taxed too, which the break-even rate leaves out. The annuity also cannot be spent early, which some winners value for its own sake.
The cash value here is estimated at 45% of the jackpot. For a real drawing, use the Powerball annuity calculator or the Mega Millions annuity calculator, which use the official cash value, and check state rates in lottery tax by state.
Common questions
How do lottery annuity payments work?
For Powerball and Mega Millions, the annuity is 30 payments over 29 years. The first is paid when you claim; the rest arrive once a year, each 5% larger than the previous payment. The total of all 30 payments equals the advertised jackpot.
Why is the lump sum so much smaller than the jackpot?
The advertised jackpot is the total of 30 annuity payments spread over 29 years. The lump sum is the cash in the prize pool today — roughly the amount needed to fund those payments — so it is usually well under half of the advertised figure.
Does the annuity mean lower taxes?
Usually only slightly. Each payment is taxed in the year you receive it, so for a large jackpot most of every payment is still taxed at the top federal rate. The main difference is timing: tax is paid over 30 years instead of in one.
What happens to a lottery annuity if the winner dies?
For Powerball, the remaining payments are not lost: the balance of the prize is paid to the winner's estate, and with a court order the annual payments can continue to the heirs (Powerball FAQ). State law can add other rules, so check with the lottery that paid the prize. Millionaire for Life works differently: only its first 20 payments are guaranteed.