Acca insurance
Acca insurance is a bookmaker promotion that refunds your stake, usually as a free bet rather than cash, when an accumulator loses by exactly one selection. If two or more legs lose, the bet simply loses, and if every leg wins you are paid at the normal odds. The refund is capped, and the qualifying conditions are set by each bookmaker, so the same name can cover quite different offers. What follows explains how the refund is worked out, where you meet it, and the promotion it is most often mixed up with.
How an acca insurance refund is worked out
The trigger is narrow: exactly one leg of a qualifying accumulator has to lose. Two losers and the insurance does nothing, which is why the offer is cheaper for the bookmaker than it first looks.
Take a €10 five-fold with every leg at 4/5, or 1.80 in decimal. Each 4/5 price implies a probability of 5 ÷ 9, about 55.6%, before the bookmaker’s margin is taken out. The combined odds are 1.80 to the fifth power, roughly 18.9, so a winning acca returns about €189. If four legs win and one loses, the refund is a €10 free bet, up to whatever cap the terms set.
That free bet is not worth €10 in your hand. A free bet returns winnings only, without the stake, so €10 placed at 3.00 pays back €20 rather than the €30 a cash bet would. Guides on the subject commonly put the real value of a free bet at roughly 70-80% of its face value, depending on the odds you use it at. A few offers refund in cash instead, and when they do the terms say so plainly.
So the refund softens a near miss; it does not change the maths of the acca itself.
Acca insurance against an acca boost
The promotion most often confused with acca insurance is the acca boost, which pays extra on a winning accumulator instead of refunding a losing one. Some bookmakers let you choose between the two on the same bet, so the difference matters.
Acca insurance | Acca boost |
|---|---|
| Pays out when exactly one leg loses | Pays out only when every leg wins |
| Usually a free bet, stake not returned | Extra winnings paid as cash |
| Refund capped at a fixed amount | Boost is a percentage of winnings |
| Minimum legs and minimum odds per leg | Minimum legs and minimum odds per leg |
| Cash-out usually voids the cover | Cash-out usually removes the boost |
| Value shows up on frequent near misses | Value grows with the number of legs |
Where you meet acca insurance in the terms
You meet acca insurance on a bookmaker’s promotions page or as a tick-box on the bet slip, and the conditions sit in the offer terms rather than the general rules. Those conditions vary from one operator to the next, so there is no standard version to quote.
Published offers commonly ask for four or five selections, often with a minimum price on each leg somewhere around 1.20 to 1.50 in decimal. Some limit the cover to your first acca of the day, some restrict the markets to match result or both teams to score, and nearly all put a ceiling on the refund. A minimum leg price of 1/2 means each selection can imply a probability of no more than about 66.7%, which keeps short-priced bankers out.
The small print that catches people out is usually about void legs and cash-out. A postponed match can drop the acca below the minimum number of selections, and taking cash-out on the bet generally ends the insurance, even if only one leg later loses.
Is acca insurance an inducement under Irish law?
A refund paid as a free bet fits the Gambling Regulation Act 2024’s definition of an inducement: a benefit whose intent or effect is to encourage participation in gambling.
Section 157 of the Act says a licensee may not offer an inducement to a person or a specific group of persons, and it lets the Minister make regulations to condition or prohibit classes of inducement offered to the general public. Promotions open to every customer are therefore treated differently in the Act from offers aimed at one account. Until those inducement provisions are commenced and any regulations are made, what applies now is the bookmaker’s own terms, and how acca insurance will be treated afterwards has not been confirmed.
Read the offer terms on the page itself, and note whether the refund comes back as cash or as a free bet.
