The game’s jackpot swelled to an estimated $1.15 billion on Christmas Day after no ticket matched all six numbers in the Christmas Eve drawing. According to the Mega Millions website, the value of the big prize has since grown to an estimated $1.22 billion, with a cash option of $549.7 million.

The massive $1.13 billion Mega Millions jackpot means a huge financial windfall for New Jersey’s lottery winner, but before they can start spending, taxes will take a big chunk of the prize. The Mega Millions winner is expected to take home less than half the advertised worth of their winning ticket, after state and local taxes.