Annuity, in full
Powerball's annuity is 30 payments over 29 years: one immediately, then 29 more, each 5% larger than the one before. The escalation is built in so the payments keep some ground against inflation, which means the last instalment is several times the size of the first. Mega Millions uses the same 30-payment, 5%-increase shape. The advertised jackpot is the sum of all 30 payments, not the money sitting in the prize pool.
The operator does not hold the full advertised amount. It takes the cash in the prize pool and buys securities, in the US typically government bonds, whose maturities are timed to cover each future payment. The advertised jackpot is therefore a projection resting on prevailing interest rates. When rates rise, the same cash pool buys a larger annuity, which is why an identical cash value can be advertised as a bigger headline number in one year than another.
The choice between annuity and cash is a real trade-off rather than a trick. The annuity delivers the larger nominal total and spreads income tax across three decades. The cash option hands over control of the investment and the timing. US Powerball and Mega Millions winners have a limited window to elect the cash option, and in most cases the election cannot be reversed afterwards. Estate rules for unpaid instalments vary by jurisdiction.
- Lottery mechanics
- Annuitised jackpot, Annual payment option
A worked example
Take an annuity whose first payment is $1,000,000. Each later payment is 5% larger, so year two is $1,050,000 and year three is $1,102,500. By payment 30 the figure is 1,000,000 × 1.05^29, about $4,116,000. The 30 payments together come to roughly $66.4 million, which is the number that would be advertised as the jackpot.
Sources
A Powerball jackpot winner electing the annuity receives one immediate payment followed by 29 annual payments, each 5% larger than the last.
Powerball — Frequently Asked QuestionsMega Millions uses the same shape: an initial annual payment followed by 29 more, each 5 percent larger than the previous one.
Mega Millions — FAQsThe advertised estimated jackpot is the total of the annuity payments, and the cash value is the sum required in the prize pool to fund them.
Wikipedia — Powerball
See also
Where it comes up on this site
Annuity: frequently asked
Thirty: one on claim, then 29 annual payments, each 5% larger than the last.
Yes, and that equivalence is where the confusion starts. The headline is the sum of all 30 graduated payments, so it describes money arriving over three decades rather than money available now. The cash option, which is what the prize pool actually holds, comes to roughly half of it. Both routes are taxed as income, and the annuity spreads that liability across 30 tax years instead of landing the whole of it in one.