When the Powerball jackpot is won, the next jackpot is guaranteed to be $40 million (annuity). If a jackpot is not won, the minimum rollover is $10 million. The cash in the jackpot pool is guaranteed to be the current value of the annuity. If revenue from ticket sales falls below expectations, game members must contribute additional funds to the jackpot pool to cover the shortage; the most likely scenario where this can occur is if the jackpot is won in consecutive drawings.

Unclaimed prizes are kept by the lottery jurisdiction. If a Grand Prize goes unclaimed, the money must be returned to all lotteries in proportion to their sales for the draw run. The lotteries then distribute the money, based on their own jurisdiction's laws, to other lottery games or to their jurisdiction's general fund, or otherwise as required by law.
*The 45 lotteries offering the new game are: the Arizona Lottery, Arkansans Lottery, Colorado Lottery, Connecticut Lottery Corporation, D.C. Lottery (District of Columbia), Delaware Lottery, Florida Lottery, Georgia Lottery, Idaho Lottery, Hoosier Lottery (Indiana), Iowa Lottery, Illinois Lottery, Kansas Lottery, Kentucky Lottery Corporation, Louisiana Lottery Corporation, Maine Lottery, Maryland Lottery, Minnesota State Lottery, Missouri Lottery, Montana Lottery, Michigan Lottery, Nebraska Lottery, New Hampshire Lottery Commission, New Jersey Lottery, New Mexico Lottery, New York Lottery, North Carolina Education Lottery, North Dakota Lottery, Ohio Lottery, Oklahoma Lottery, Oregon Lottery, Pennsylvania Lottery, Rhode Island Lottery, South Carolina Education Lottery, South Dakota Lottery, Tennessee Education Lottery, Texas Lottery, Virgin Islands Lottery, Vermont Lottery, Virginia Lottery, Wisconsin Lottery, West Virginia Lottery, Washington Lottery, California Lottery.
State lotteries have become a significant source of revenue for states, raising $17.6 billion in profits for state budgets in the 2009 fiscal year (FY) with 11 states collecting more revenue from their state lottery than from their state corporate income tax during FY2009. Lottery policies within states can have conflicting goals. Given that instructions are passed down from state legislatures, lottery implementation is often expected to be carried out with reduced advertising and funding while still producing the same amount of revenue. This issue led states to look for loopholes in the system. Massachusetts, for example, had its advertising budget dramatically cut, and therefore started using free-play coupons as money to pay for advertising. This led to an IRS investigation into alleged non-reporting of income because the IRS considered the coupons to have monetary value.
Rules vary according to the applicable laws and regulations in the jurisdiction where the ticket is sold, and the winner's residence (e.g. if a New Jerseyan wins on a ticket bought near their workplace in Manhattan). Mega Millions winnings are exempt from state income tax in California; while Florida, New Hampshire, South Dakota, Tennessee, Texas, Washington state, and Wyoming do not have an income tax. On the other hand, some residents of New York City and Yonkers, New York pay three levels of income tax, as these cities levy income taxes.
Today, all 44 individual state lotteries offer both Mega Millions and Powerball as a result of a 2009 agreement between the Mega Millions consortium and MUSL to cross-license their joint games to one another’s members, although the two organizations continue to administer Mega Millions and Powerball separately. D.C. and the U.S. Virgin Islands also offer both games. Only the Puerto Rico Lottery offers only Powerball and not Mega Millions.
MUSL and its members accept all investment risk and are contractually obligated and liable to the winner to make all scheduled payments to annuity winners. If a jackpot ticket is not claimed, the funds in the prize pool are returned to members in proportion to the amount they contributed to the prize pool. The members have different rules regulating how unclaimed funds are used.[2]
The minimum Powerball bet is $2. In each game, players select five numbers from a set of 69 white balls and one number from 26 red Powerballs; the red ball number can be the same as one of the white balls. The drawing order of the five white balls is irrelevant; all tickets show the white ball numbers in ascending order. Players cannot use the drawn Powerball to match two of their white numbers, or vice versa. Players can select their own numbers, or have the terminal pseudorandomly select the numbers (called "quick pick", "easy pick", etc.).
On January 13, 2016, the world's largest lottery jackpot, an annuity of approximately $1.586 billion, was split among three Powerball tickets in Chino Hills, California, Melbourne Beach, Florida and Munford, Tennessee, each worth $528.8 million. Since there is no income tax in Florida or Tennessee (and California does not tax lottery winnings), the cash option after Federal withholdings is $187.2 million each.[32]
The minimum Powerball bet is $2. In each game, players select five numbers from a set of 69 white balls and one number from 26 red Powerballs; the red ball number can be the same as one of the white balls. The drawing order of the five white balls is irrelevant; all tickets show the white ball numbers in ascending order. Players cannot use the drawn Powerball to match two of their white numbers, or vice versa. Players can select their own numbers, or have the terminal pseudorandomly select the numbers (called "quick pick", "easy pick", etc.).
EuroMillions currently has a minimum jackpot of approximately €15 million and a maximum jackpot capped at €190 million, making EuroMillions by far the largest lottery prize in Europe. EuroMillions also has annual Superdraws several times a year, automatically boosting the jackpot to €100 million. To read more about these special jackpots, and for news on upcoming draws, see our EuroMillions Superdraw page!
The two different methods, both offer you, the player, the same user experience and the only difference is in the back end of how the online lottery ticket provider works. The two methods that online lottery sites use differ in one key way; They either have agents and employees all over the world that physically purchase tickets on behalf of clients or, the more recent phenomenon is when companies essentially take out an insurance policy on every ticket which is tied to the size of the jackpot. This is the difference between you playing the lottery online and betting on the lottery online*. In the latter option you are, de facto, not playing the US Powerball online but rather you are placing a bet with an insurance company on the outcome of the corresponding Powerball draw. 
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