You can claim a sign up deposit bonus on your first deposit at the online casino where you have registered as a new players. This welcome deposit bonus is expressed as a percentage that you will receive on top of your deposit. A standard welcome bonus is 100% up to a certain amount and there are plenty of online casinos that offer higher percentages of 150%, 200%, 300% and even more. If an online casino welcome offer is 100% up to ?100, this means that if you deposit ?75 you can claim the same amount as a bonus receiving ?150 in total to play with. In many cases your welcome deposit bonus is limited to your first deposit but at several online casino you can claim extra cash on your first, second and third deposit and sometimes even on your fourth and fifth deposit.