While there is no strict rollover limit for the EuroMillions jackpot, the top prize is capped once it reaches €240 million and stays at that level for a maximum of five draws. The fifth draw is a 'Must Be Won' draw, in which if there is no jackpot winner the prize money will be shared by ticket holders in the next winning tier.
Once a €240 million jackpot has been won or rolled down, the cap will increase by €10 million. The cap will continue to go up by €10 million each time the maximum jackpot gets won or rolls down, but it cannot go any higher than €250 million.