An accumulator bet (or acca) is a type of multiple bet that combines four or more selections into a single wager. For the bet to win, all selections must be correct. The key attraction of an accumulator is that the odds multiply, leading to higher potential payouts compared to single bets.
Example: If you place a fourfold accumulator with each selection at odds of 2.0, the total odds would be 16.0 (2.0 x 2.0 x 2.0 x 2.0). This means a £10 stake would return £160 if all selections win.
You profit from acca promos by placing a qualifying accumulator at the bookmaker, then laying the same acca (or each leg sequentially) on an exchange. This keeps your downside small while unlocking value from features like Acca Freeze, boosts, or insurance. The profit comes from converting the promotional value, not from predicting every result perfectly.
There are different types of accumulators, based on the number of selections:
One challenge with accumulators is that traditional betting exchanges don’t always offer direct lay markets for accas. However, Smarkets provides an acca lay feature, which allows you to lay the entire accumulator at once if liquidity is available. This is incredibly useful for matched betting strategies, as it simplifies the process.
If there’s not enough liquidity on Smarkets for a full acca lay, the alternative is to lay sequentially. This means laying each selection one by one as the previous one wins, ensuring that your liability is managed effectively.
Suppose you place a £10 fourfold at combined odds of 12.0.
Many bookmakers offer acca promotions to attract bettors. These can be hugely profitable when used with matched betting techniques.
Popular Acca Promotions:
Sky Bet’s Acca Freeze promotion is one of the most exploitable offers in matched betting. Our Acca Freeze Matcher helps you find the best selections and maximise your profits from the promo. The software identifies the most efficient accas to place, ensuring you get the best returns while taking advantage of the feature.
Matched betting with accumulators can be highly profitable if done correctly. Here’s how:
Accumulators are popular for their potential high payouts, and when combined with matched betting strategies, they can consistently generate profit. Whether you’re taking advantage of bookmaker promotions or using Smarkets' acca lay feature, knowing how to effectively manage your accas can give you a significant edge. Keep building your knowledge with our explainer on single bets so you can mix up your staking plans as needed.
An accumulator bet (or acca) is a multiple bet that combines four or more selections into a single wager, with the total odds multiplying.
Smarkets allows you to lay an entire accumulator at once, provided there is enough liquidity in the market.
If full acca lay liquidity isn’t available, you can lay sequentially, meaning you lay each selection individually as the previous one wins.
Acca Freeze allows you to "freeze" one leg of your accumulator if it's losing, keeping the rest of your bet active.
Use acca promotions, lay the bet on an exchange, and convert the offer value into a planned return.
If full-acca liquidity is available, one lay is faster. If not, sequential laying is the practical option and still controls risk when done carefully.
For bet builder-specific methods, see risk-free betbuilders, bet365 betbuilders, and how to lay bet builders.