Bonus Bet (Free Bet)

A bonus bet, just as often called a free bet, is a promotional offer in which the sportsbook supplies the stake for a wager at no cost to the bettor. When a bonus bet wins, the bettor pockets the profit — the payout less the stake — but the original stake itself stays with the book. This “stake not included” design is the hallmark that sets bonus bets apart from ordinary wagers and bears directly on what they are genuinely worth in practice.

Bonus bets rank among the most familiar promotional levers sportsbooks pull to draw new customers and hold on to existing ones. They surface regularly within sign-up packages, deposit matches, and standing loyalty rewards. Because the stake never comes back on a winner, a bonus bet’s true value falls short of its face figure. A $100 bonus bet, for example, is not actually worth $100 — its expected value hinges on the odds it is placed at, and bettors can wring out the most value by deploying bonus bets on longer-priced selections.

Example

A sportsbook grants a bettor a $50 bonus bet as part of a welcome offer. The bettor stakes the bonus bet on a selection priced at American odds of +200. If it wins, the profit is figured on the $50 stake, producing $100 in profit. Unlike a regular $50 bet at +200, though, the bettor does not get the $50 stake back — only the $100 profit lands in the account. If the bet loses, the bettor is out nothing from personal funds, since the sportsbook bankrolled the stake. To squeeze the most from this bonus bet, the bettor chose longer odds, which lifts the potential profit relative to the non-refundable stake.

Key Points

• Stake not returned: The signature trait of a bonus bet is that the original stake is left out of the payout on a winner. Only the profit portion reaches the account.
• Best used at longer odds: Since the stake is surrendered whatever happens, placing bonus bets at higher odds maximizes the return relative to the bet’s real value.
• Common promotional tool: Bonus bets feature heavily in sign-up bonuses, referral rewards, and ongoing promotions. They count among the most frequent incentives legal sportsbooks extend.
• Subject to restrictions: Most bonus bets arrive with strings attached — expiration dates, minimum odds requirements, and limits on eligible markets. Always read the terms before placing the wager.
• Calculable value: A bonus bet’s expected value can be estimated mathematically from the odds chosen, helping bettors decide intelligently how to put these promotions to work.