Yes and no. The objective of mahjong is to be the player with the most points after the final round. It is possible to play the game for money, in which case these points can correlate to money in some way. Mahjong is often played without money, though, in which case the points merely determine the winner.

The Interactive Gambling Act 2001\n\n It's illegal to provide some interactive gambling activities, such as 'online casinos', to someone in Australia.