Deposit plus bonus wagering (D+B)
Deposit plus bonus wagering (D+B) is a wagering requirement calculated on the sum of your deposit and the bonus, rather than on the bonus alone. You multiply that combined figure by the stated multiplier to get the total value of bets you must place before bonus funds, and usually any winnings from them, can be withdrawn. The same multiplier costs you far more under D+B, which is why the basis matters as much as the number.
How D+B wagering is calculated
The formula is simple: (deposit + bonus) × multiplier = total bets required. Take a 100% match on a €100 deposit with 35x wagering. On a D+B basis you wager 35 × €200, which is €7,000 of bets.
Put the same offer on a bonus-only basis and it comes to 35 × €100, or €3,500. Same headline, double the play.
Game weighting then stretches it further. If a table game counts at 10%, each €10 bet clears just €1 of the requirement, so most players clear D+B on slots and still face the maximum bet rule while they do it.
Where you meet D+B in the terms
You rarely see the abbreviation on the banner. It sits in the bonus terms, usually worded along the lines of “wagering of 35x the deposit and bonus amount” or “35x (D+B)”.
Practice varies between operators, so read which base the multiplier applies to before you compare offers.
D+B is most often confused with plain bonus wagering, and the confusion runs one way. A 20x D+B offer on a 100% match equals 40x on the bonus alone, so it is worse than a 35x bonus-only offer even though its headline number looks lower. Convert every offer to a bonus-only equivalent and the comparison becomes honest.
