A full list of online bookmakers that pay out a 50% bet bonus to new customers after their first deposit has been made.
The deposit bonus is one of the most popular methods of awarding a bonus or free bet to entice new online players to the bookmakers. 
It's also one of the easiest to claim due to it's simplicity. All you need to do is place a first deposit before you bet on the sports action. This in turn will trigger a free 50% bet bonus credit. In some cases you will need a promo or bonus code when you register or deposit for the first time. We have the details on the codes, if needed, above in the table. Compare the online bookmaker deals and see which one, or all you want to take.
50% Bet Low Rollover
The other important note is to see which bookmakers are the best for the lowest rollover requirement of your deposit and 50% bet bonus amount. This is a required condition of the bookmakers before you can withdraw the bonus and amount of the deposit you made. You will find it is easily met if your are a regular punter with steady turnover of your bets. It is calculated by the total amount of your first deposit and the bonus awarded. As an example let's take Netbet.com bonus bet offer as it has the lowest rollover requirement of only x 1.
You deposit £100 into your Netbet account and are awarded a 50% bet bonus on top to give you a total of £150 in your account to bet with.
You need to place bets to the total of £150 in order for you to be able to cash out your deposit bonus money.
https://sportingways.com/free-bets/