Bonus Bet (Free Bet)

A bonus bet, also called a free bet, is a sportsbook promo where the operator covers the stake at no cost to the bettor. Win it and you collect the profit – the payout minus the stake – but the original stake stays with the book. This “stake not included” setup is what separates bonus bets from standard wagers and directly drives their real worth.

Bonus bets are among the most common promo tools books use to pull in new customers and keep existing ones. They show up in sign-up packages, deposit matches, and ongoing loyalty rewards. Because the stake never comes back on a win, the true value of a bonus bet is below its face amount. A $100 bonus bet is not worth $100 – its expected value rides on the odds you use, and you maximize it by placing bonus bets on longer-odds selections.

Example

A book hands a bettor a $50 bonus bet as part of a welcome offer. The bettor places it on a selection at American odds of +200. If it wins, profit is figured on the $50 stake, returning $100 in profit. But unlike a regular $50 bet at +200, the bettor does not get the $50 stake back – only the $100 profit is credited. If it loses, the bettor is out nothing of their own, since the book funded the stake. To squeeze out the most value, the bettor picked longer odds, which lifts potential profit relative to the non-refundable stake.

Key Points

• Stake not returned: The defining trait of a bonus bet is that the stake is not part of the payout on a win. Only the profit is credited.
• Best used at longer odds: Since the stake is forfeited either way, placing bonus bets at higher odds maximizes return relative to the bet’s real value.
• Common promotional tool: Bonus bets run through sign-up bonuses, referral rewards, and ongoing promos. They are among the most frequent incentives at legal sportsbooks.
• Subject to restrictions: Most carry conditions – expiration dates, minimum odds, and market limits. Read the terms before placing.
• Calculable value: A bonus bet’s expected value can be estimated from the odds you choose, helping you decide how to deploy these promos.