A casino bonus is probably the least understood aspect of an online casino and mainly because most casino players cannot be bothered to read the full terms and conditions but as we have said on numerous occasions here at casinos.ie the joining bonus on offer should never be the sole reason for signing up to an online casino but having decided that you are signing up then you might as well take advantage of what is on offer. There are a few things to watch out for when looking for a good casino bonus simply to avoid disappointment and the headline advertised amount of the casino bonus is only part of the story. Invariably a casino bonus for new registrations is a deposit matching bonus but it is important to note whether it is a 100% match or a 50% match as this affects how much you have to deposit to get the maximum bonus; at the moment for example Paddy Power casino are offering a 100% match for the first €100 but Ladbrokes casino are offering a 200% match for the first €100 whereas Bwin casino only offer a 50% match but when looking at casino bonuses this is only part of the story. Every casino bonus has what is called a play through requirement which is basically designed to prevent players withdrawing the bonus immediately and a play through requirement means that you must stake your deposit or sometimes your deposit plus the bonus a certain number of times before you can convert the casino bonus into real cash so for example Bwin which only offers a 50% match requires a play through of 20 times your bonus plus deposit but Paddy Power who offer a 100% match require you to stake the bonus and deposit 32 times before you can withdraw so which is better becomes more difficult to determine. All online casinos offer a casino bonus for new players but read the terms and conditions to avoid disappointment.