Deposit Bonus
Extra bonus funds an operator credits as a percentage of the money you deposit.
Definition
A deposit bonus (often called a "match bonus") is a promotional incentive in which an operator adds bonus funds calculated as a percentage of a player's qualifying deposit, usually up to a stated maximum cap. It is the most common structure for a welcome offer to new players, but the same mechanic is used in "reload" promotions aimed at existing customers. The credited funds are almost always separate from real cash and subject to bonus terms — a wagering requirement, game weighting, maximum-bet limits, and an expiry period — that determine when, or whether, the bonus and its winnings can be converted to withdrawable money. Because it is a marketing tool rather than a payout, the real value of a deposit bonus depends far more on its attached conditions than on the headline percentage.
Worked example
Consider an offer advertised as "100% deposit match up to 200 EUR." A player who deposits 150 EUR is matched at 100% and receives 150 EUR in bonus funds, giving a 300 EUR playable balance; a player who deposits 300 EUR hits the cap and receives only 200 EUR in bonus, not a full match. The percentage and the cap work together — a "50% match up to 100 EUR" on a 150 EUR deposit yields just 75 EUR of bonus (50% of 150), not the full 100 EUR cap. The bonus is not withdrawable on credit: if a 35x wagering requirement applies to the 150 EUR bonus, the player must place 35 x 150 = 5,250 EUR in qualifying stakes before the bonus and any winnings become cashable. Played on a typical 96% RTP slot (4% house edge), those 5,250 EUR of turnover carry an expected theoretical loss of about 210 EUR, which is why a deposit bonus is a structured entertainment offer, not a source of guaranteed value or income.
Why it matters
For beginners, the deposit bonus is the offer they will meet first, and understanding it explains why a headline like "get 200 EUR free" means little without the qualifying deposit, the cap, and the wagering terms that sit behind it. For professionals, deposit-bonus design is a core commercial lever: it drives acquisition cost and conversion, its cost is deducted from GGR when calculating NGR, and its presentation is a recurring focus of regulators, since advertising that frames bonuses as "free" money or a way to profit can breach responsible-marketing rules such as UK CAP 16.3.4.
Related
Note: The core mechanic is stable, but every figure is operator- and jurisdiction-specific: the match percentage, the maximum cap, the minimum qualifying deposit, the wagering multiplier, eligible payment methods (some exclude e-wallets), game weighting, and expiry are all set in individual bonus terms. Some regulators restrict, cap, or prohibit deposit bonuses and "free"/bonus advertising entirely (rules differ sharply by market), so the availability and permitted framing of such offers varies. RTP and house-edge figures are game-specific examples, not universal values. Always verify against the specific offer's T&Cs and applicable local regulation.