There are almost 1000 online casinos available today, and most of them offer new players a sign up bonus as an incentive to download and play at their site. The bonus size varies greatly from casino to casino, it can range from less than 50% to more than 300% of your deposit.

But the highest bonues are not necessarily the best ones. Some bonuses are not cashable, which means that the bonus amount itself cannot be cashed out.  Other bonuses are linked to very high wager requirements, which means that you have to wager an enormous amount before you can request a withdrawal of your winnings. And finally, there are also restrictions on the games that can be played with a particular bonus.

CasinoBonus.org compares hundreds of sign up bonuses, by looking carefully at their “Terms and Conditions”. The “Top 10” below shows our selection of the best casino bonus offers that are available at the moment.

Due to legislation issues, some online casinos have stopped accepting US players. In the table below you can see which online casinos within our "Top 10" accept US players, from all states or at least from most states.