Accumulator mechanics
The combined decimal price is produced by multiplying the price of each leg. One losing leg normally loses the full accumulator; a void leg is usually removed and the price recalculated under house rules.
Accumulator versus Bet Builder
Bet365's Bet Builder is documented. A standard accumulator combines outcomes from different events; a Bet Builder combines compatible outcomes from one event.
Offer restrictions
New customers only. Make a qualifying deposit of £5+ (capped at £10) and claim within 30 days of registering to qualify for 300% of that amount in Free Bets, up to £30. To release Free Bets, place qualifying bets to the value of your qualifying deposit at min odds 1/5 (1.20); they must settle within 30 days of claiming the offer. PayPal and paysafecard restricted unless ID verified. Free Bets are non-withdrawable and stakes are excluded from returns. Free Bets expire 7 days after being added. Full T&Cs apply. 18+. begambleaware.org. Check whether a promotion requires a minimum number of legs or minimum price per leg.
Sources checked
Operator-owned information reviewed 1 August 2026. Product pages and terms can change.