A PERCENTAGE BONUS is exactly what it sounds like. You make a deposit at a casino and they will give you bonus chips based on the amount of that deposit. There is a great deal of these offers – this is kind of the «last resort» bonus that many casinos offer when they really don't want to offer a promotion, but know that they must offer something to encourage new players to join. The percentage bonuses can be for only the first deposit that a player makes, or it could be a small amount for EVERY deposit!
This amount varies from as low as 5% to as high as 50%. In fact, some casinos offer multiple bonuses – a fixed rate or a percentage – giving you whichever one will reward you the most when you make a deposit. (Usually the higher deposit will reward you with a percentage bonus.)
As with the fixed-rate bonuses, the terms of receiving and withdrawing the percentage bonuses can vary greatly. Some casinos only require that you wager the amount of the bonus, some require that you wager the purchase before you receive the bonus, and then the bonus afterwards. Some casinos will award this bonus immediately upon your deposit, while some require you to request it and take a few days to credit your bonus. As always, the exact procedure and terms for the bonus will be outlined with great detail on the casino information page. If you have a large bankroll that you want/intend to wager with, this type of bonus would be your favorite because the amounts that you receive depend solely on your deposit, and most casinos set the maximum amount for percentage bonuses upwards of $250 each! Often they even INCREASE in percentage the more you deposit!
| Casino | Max. Deposit | Bonus | Wager | W/B | Wager limit | Conditions/Games | Software | Mobile | Rating | Comments |
| Aztec Riches | $,€100 | 50% | 30b | 30 | 25% |  |
Microgaming | Plus up to $800 on 2nd-3rd No US players |
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| Challenge Casino | $,€3200 | 25% | 30b | 30 | |
Microgaming | Plus up to $200 on 2nd-3rd deposit No US players |
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| Phoenician Casino | $,€100 | 50% | 30b | 90 | |
Microgaming | Plus up to $1150 on 2nd-3rd No US players |
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| Strike it Lucky | $,€40 | 50% | 30b | 30 | 25% | |
Microgaming | No US players |
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| PlayAmo Casino (3) | $,€4000 | 50% | 50b | 50 | $,€10 |  |
Multi |  |
5 | No US players |
| Davincis Gold (4) | $,€310 | 50% | 17(d+b) | 51 | |
Rival | No US players |
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| Pantasia Casino (5) | $,€1000 | 30% | 35(d+b) | 152 |  |
Rival | No US players |
Icons are used in «Conditions/Games» column to inform about important bonuses terms and conditions. Site has six icons now ranging from green (the best) to red (the worst). Move cursor over icon to read short tooltips (wait for a second without moving mouse). Detailed explanations are available here.
«Wager limit» column shows maximum allowed bets while playing with bonuses either in money or percentage of the bonus.