Many people's first experience of betting in the UK came through placing accumulators in the local bookies, and accas remain hugely popular among online betting sites today.

The beauty of accas is that even with a small stake, you can receive big payouts, and with acca bonus offers, those juicy wins are even bigger and better.

You can get 70% extra on your winnings with some acca bonus offers.

One of the best things about accumulator bonus offers is that it is an existing customer promotion, meaning you can claim such deals every day.

Along with acca insurance, this is among the best accumulator features on betting sites today.

Accumulator bonus offers are among the top existing customer promotions on online betting sites. Essentially, the bookmaker gives you extra winnings on top of your standard payout when you place a successful 'acca' bet with multiple selections.

In many cases, the more selections you add to your accumulator, the greater the bonus is if you win. This is the case with ZetBet, who offer a bonus of up to 77% on accas depending on the number of selections.

Accumulator bonuses can vary enormously between bookmakers. They are often only available for pre-match betting and there may be a minimum bet and a maximum bonus amount.

As with any of the betting offers that you may be looking to claim, it is important that you understand the terms and conditions before you start betting. One of the key terms with acca bonus deals may relate to whether the extra winnings are paid in cash or as free bets.

Only a select few bookmakers offer acca boost deals, with some instead choosing to provide acca insurance or other existing customer betting promotions such as enhanced odds or money back specials.

If you are looking for a betting site with an accumulator bonus, then you can choose from a number of new betting sites as well as some of the classics.

Well-known bookies such as Ladbrokes and William Hill have had excellent acca features for a long time, while the likes of Betiton and Novibet, both relatively new on the scene, recognise the importance of this offering as well.

Top 10 Acca Bonus betting sites

1. Bet365 - Up to 70% on football, tennis, & US sports
2. ZetBet - Acca Boost up to 77%
3. Coral - Free bet up to £100 on winning 3+ accas
4. William Hill - Boost accas with 3+ selections, max stake £20
5. Karamba - Win up to 77% more on accas with 4+ legs
6. Ladbrokes - Supercharge your odds with a daily acca boost
7. The Pools - Price boost on £10+ accas with 5+ legs
8. Mr Play - Playboost offer gives extra winnings up to 77%
9. Betiton - Boostiton promo applies to pre-event markets on all sports
10. LeoVegas - Max stake £20, up to 50% bonus on football accas

All betting offers and promotions have different terms and conditions, and acca bonus deals are no different. Your eyes might be drawn to the biggest bonus, but these offers are not always the best. There are many other elements that should be considered.

• Size of bonus

Accumulator bonus offers are usually given out as a percentage boost on top of your normal winnings. These can be anything from 5% up to 100% in some cases. With some promos, you may have your odds boosted when you place the bet, rather than it being marketed as a percentage increase.

• Number of selections

Every acca bonus promotion will have a minimum number of selections that must be added to each accumulator in order for it to qualify for the bonus. Of course, the lower the minimum, the easier it is to actually win the bet. However, some bookies will reward you with a bigger bonus if you place a winning acca with more legs in it.

• Eligible markets

You should check that the sports and markets you want to bet on are valid for the acca bonus on your chosen betting site. Some are for football only, while others include more sports but may only apply to certain markets or leagues. The more variety on offer here, the better.

• Minimum odds

In order to qualify for an acca bonus on a betting site, you may need to meet minimum odds requirements. This can apply to each leg, or to the accumulator as a whole.

• How extra winnings are paid

Some accumulator bonus deals see the extra winnings paid in cash, whereas others are paid in free bets. If it is in free bets, there may be restrictions on the free bet, such as minimum odds, eligible markets, and expiry date.

• Min/max stake

Usually the bookie will set a minimum and/or a maximum stake for the acca bonus offer. A typical maximum is £10 or £20.

• Maximum winnings

Some online betting sites may cap the total winnings that you can receive through an accumulator bonus promotion.

• First qualifying bet

It is not unusual for acca bonus offers to only be valid on the first accumulator you place on the betting site each day. In this case, any subsequent accas that you place on the same day will not count. 

When it comes to multiple bets, or parlays as they are called across the Atlantic, football accas are by far the most popular. That's why many accumulator bonus promotions are geared around football and are in some cases exclusive to that particular sport.

Betting sites often create pre-made football accumulators with enhanced odds, and even if they don't have a separate football acca bonus offer, options are aplenty with the best online bookmakers.

Enhanced odds such as those on sites like Paddy Power are great, but the beauty of football accumulator bonus promotions is the ability to select your own games, and in some cases mix up the markets that you add to your wager.

If you use the William Hill Acca Freedom offer and select the Boost option, you can increase the odds for your football acca with 3+ legs. Because there are no restrictions on the markets you may go for, you could do both teams to score, over 2.5 goals, and a match winner selection all in the same footy acca.

Should you want to build an acca with only one type of bet, such as both teams to score, some sites will allow you to view a full list of fixtures with the both teams to score odds on display, so you can quickly build your acca. You can do this on Ladbrokes, and then use their Acca Boost feature to enhance your odds.