Lump sum or annuity.
The number on the billboard is not a number anyone receives. Here is what the two options actually mean.
The advertised jackpot is the annuity
When a jackpot is advertised at a billion dollars, that figure is the total of thirty graduated payments made over twenty-nine years. It is not sitting in an account somewhere. It is what the lottery calculates it can pay out over three decades by investing the actual prize pool.
The cash option is the real pool
Take it as a lump sum and you get the money the lottery genuinely holds, which has historically run somewhere around half the advertised figure, varying with interest rates. When rates are high the gap narrows, because the annuity can be funded with less up front. When rates are low the gap widens.
Neither figure is the amount that reaches your account, because tax comes off first. Federal withholding starts at 24% on prizes this size and the eventual federal bill is higher, plus state tax that ranges from nothing to more than 10% depending on where you bought the ticket.
Which is better is genuinely arguable
The case for the lump sum: you control the money, you can invest it, and if you can beat the implied return of the annuity you come out ahead. The case for the annuity: it is protection against your own decisions and other people's requests, it spreads the tax across three decades rather than landing it all in one year, and it cannot be lost in a single bad choice.
Which one wins depends on interest rates, your tax situation, your age and how you would actually behave with a very large sum. We are not financial advisers and this is not advice. It is the arithmetic you need before you talk to one, and anyone in this position should talk to one before claiming.
Why we never print a jackpot figure next to your ticket
If you match the jackpot tier on MilliCheck, we tell you that you matched it, and we do not show an amount. Three unknowns sit between the advertised figure and your bank balance: how many other tickets matched, which option you take, and what tax applies where you live. Any single number we printed would be wrong in at least one of those directions.
Every other checker prints one anyway. That is the difference.