bet365 Acca Boost | Up to 100% Bonus on Winning Accas

Last Updated on 25/03/2026 by Andy Clark

The bet365 Acca Boost is one of the best ongoing accumulator promotions available to UK punters. Place a winning accumulator of two or more selections on qualifying football, tennis and other sports markets and bet365 will automatically add a bonus to your winnings — up to 100% extra on a 20-fold acca.

No promo code required. No opt-in. The boost is applied automatically to any qualifying winning acca.

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Min deposit requirement. Registration Required. Free Bets are paid as Bet Credits and are available for use upon settlement of qualifying bets. Min odds, bet and payment method exclusions apply. Returns exclude Bet Credits stake. Time limits and T&Cs apply.

18+. New customers only. Min deposit requirement. Free Bets are paid as Bet Credits. T&Cs apply.

How the bet365 Acca Boost Works

The mechanics are simple. Place an accumulator of two or more qualifying selections, and if your acca wins, bet365 automatically adds a percentage bonus on top of your winnings. The more selections you add, the bigger the boost.

The bonus is paid as cash and credited directly to your withdrawable balance — not as a free bet, not subject to wagering requirements. You can withdraw it straight away.

Step by step:

Log in to your bet365 account (or open one using this link)
Add two or more qualifying selections to your bet slip
Select accumulator and enter your stake
If your acca wins, bet365 automatically apply the boost to your winnings
Boosted winnings are credited to your account as cash

bet365 Acca Boost Percentages — Full Table

The boost percentage scales with the number of selections in your accumulator:

Selections	Boost
2 (Double)	2.5%
3 (Treble)	5%
4	7.5%
5	10%
6	15%
7	20%
8	25%
9	30%
10	35%
11	40%
12	45%
13	50%
14	55%
15	60%
16	65%
17	70%
18	80%
19	90%
20	100%

A five-fold acca — the most common acca size — earns you a 10% boost on top of your winnings. On a £10 bet returning £100, that is an extra £10 straight into your account as cash.

Worked Example — 5-Fold Acca with 10% Boost

Say you place a £10 five-team accumulator on five Saturday Premier League games. Your selections all win, and your acca returns £90 profit (£100 total return including stake).

Without the boost: £90 profit.

With the 10% Acca Boost: £90 profit + £9 boost = £99 profit (£109 total return).

The boost is calculated on the winnings only, not the total return including stake.

Now imagine a bigger acca. A £10 ten-fold accumulator that wins at 50/1 returns £510 profit. With a 35% boost, you would receive an additional £178.50 — a total return of £698.50 from a £10 stake.

Which Sports and Markets Qualify?

The bet365 Acca Boost covers a wide range of sports and markets:

Football: Match result (1×2), both teams to score, result/both teams to score. Full-time result is the most common qualifying market for football accas.

Tennis: Match winner (money line), first set winner, set betting.

US Sports: NBA basketball (spreads, totals, money line), NFL American football (spreads, totals, 1st half markets), MLB baseball (run line, money line), NHL ice hockey (puck line, money line).

MMA: Fight winner (money line).

The boost applies to pre-match and in-play accumulators on qualifying markets. You can mix sports within the same acca — for example, three football selections and two tennis selections in the same five-fold.

What Does Not Qualify?

It is important to know what falls outside the promotion:

Bet Builders and Bet Builder+ — single-match combination bets do not qualify, even if they include multiple selections from the same game
Selections at odds below 1/10 (10/1 on) — any selection shorter than 1/10 in your acca means the whole acca is excluded from the boost
Bets placed with Bet Credits — only cash bets qualify
Lucky 15s, Lucky 31s and other combination bets — these are separate bet types and do not qualify
Double Chance bets — not eligible
Pre-built bet boosts — if a selection already has a Bet Boost applied, the Acca Boost does not apply to that bet
Bets that become winners under Early Payout terms — if your team goes two goals ahead and bet365 pay out early, the Acca Boost does not apply

The maximum total boost is £100,000.

Do I Need to Opt In?

No. The bet365 Acca Boost is automatic. There is no opt-in button to click, no promo code to enter and no registration required. As long as you have a qualifying bet365 account and place an eligible accumulator, the boost is applied if you win.

The promotion is available to both new and existing customers.

New to bet365? Get £30 in Free Bets

If you do not yet have a bet365 account, new customers can get £30 in free bet credits when they deposit and place a qualifying bet of £10 or more.

Step	Action
1	Click our link and open a bet365 account
2	Deposit £10 or more
3	Place a qualifying £10+ bet
4	Receive £30 in free bet credits on settlement

The welcome offer and the Acca Boost promotion can be used independently — the Acca Boost applies to cash bets, while the welcome offer credits free bets separately.

GET THE BET365 SIGN-UP OFFER →

18+. New customers only. Min deposit requirement. Free Bets are paid as Bet Credits and are available for use upon settlement of qualifying bets. Min odds, bet and payment method exclusions apply. Returns exclude Bet Credits stake. Time limits and T&Cs apply.

bet365 Acca Boost vs Other Bookmaker Acca Promotions

The bet365 Acca Boost is one of the strongest ongoing acca promotions in the UK market. Here is how it compares with the main alternatives:

Bookmaker	Offer	Max Boost	Notes
bet365	Acca Boost — 2.5% to 100%	100%	No opt-in. Cash paid. Scaling by selections.
Betfred	Acca Flex	50%	Combined with acca insurance (1 leg back in cash).
William Hill	Acca Club	Varies	Acca bonuses on qualifying multiples.
Boylesports	Bet Builder Boost	Varies	Focused on bet builder markets.

Betfred’s Acca Flex is the main alternative worth considering — it combines a bonus with insurance on the final leg, which has real value for five-fold and six-fold accas. The bet365 boost is larger but has no safety net if one leg fails.

See our Betfred Acca Flex guide and Boylesports offers for full details on those promotions.

Full Terms and Conditions

This boost is only available to new and eligible customers.
This boost applies to winnings on accumulators of 2 or more selections placed on any combination of qualifying sports placed from 18:30 UK Time on 6th August 2024.
This boost applies to winnings on accumulators of 2 or more selections on the standard Full Time Result (Soccer only), Both Teams To Score (Soccer only), Result/Both Teams to Score (Soccer only), Spread (Basketball, American Football only), Run Line (Baseball only), Puck Line (Ice Hockey only), Money Line 2-Way & 3-Way (Basketball, American Football, Baseball, Ice Hockey only), Game Totals (Basketball, American Football, Baseball, Ice Hockey only), 1st Half Spread (Basketball, American Football), 1st Half Totals (Basketball, American Football), 2nd Half Spread (NFL & NBA only), 2nd Half Totals (NFL & NBA only), A Run in the 1st Innings (Baseball only), To Win Fight (MMA only), Fight Outcome (MMA only), To Win Match (Tennis only), First Set Winner (Tennis only) and Set Betting markets (Tennis only) for selected leagues and competitions, listed below.
Bets placed on the Full Time Result – Enhanced Prices market do not apply to this boost.
Selections can be pre-match or In-Play.
Maximum boost £100,000 or currency equivalent*. Acca Boost does not apply to bets placed on alternative line/spread/totals markets, bets placed with Bet Credits, fixed odds Parlay Cards, Teasers and Fixed Teaser Cards, Jackpots, Double Chance bets or combination bets with bonuses such as Lucky 15s, Lucky 31s etc.
Where an accumulator has been placed using Bet Builders or Bet Builder+, Acca Boost will not apply.
This boost will not apply for accumulators which contain any selection at odds of less than 1/10, or any selections where the outcome of the market can be void, despite the natural conclusion and determinability of the event/market (i.e. the outcome of the market is known).
Where a Bet Boost is offered for a multiple bet (for example a pre-built Treble), Acca Boost will not apply.
Boosts are paid out on accumulators once all full time results are confirmed. If an accumulator would otherwise have lost, but becomes a winner under the terms of an Early Payout, no additional winnings will be applied.
This boost will not apply where a bet has been Cashed Out.

bet365 Acca Boost — Up to 100% Extra Winnings on Your Accumulator