Betting sign up bonus Australia: why licensed bookies can't offer one, and how bonus bets work

Is there a betting sign up bonus in Australia?

Not from a licensed bookmaker. The National Consumer Protection Framework for online wagering says online gambling providers "cannot offer any incentives to open an account or to refer another person to open an account". Tasmania's regulator spells it out further: providers cannot offer "any credit, voucher, reward, or other benefit" as an incentive to open an account, or to refer someone.

The Department of Social Services lists this as Measure 4. It took effect on 26 May 2019 in every state and territory except NSW, where it started on 26 November 2019.

What the rule rules out

The measure is about opening and referring accounts. Licensed bookmakers do run promotions such as bonus bets for existing customers, which TAB's help centre covers in its own section.

What changes on 1 January 2027

Federal law tightens the rules further from 1 January 2027. The Interactive Gambling Amendment (Gambling Reform) Act 2026, passed on 19 August 2026, adds a Part 7D on inducements to the Interactive Gambling Act. From that date a licensed wagering provider must not send an email, message or call offering an inducement to a "designated customer", or show that customer inducement ads on social media. Designated customers include anyone whose account has been open for 14 days or less, anyone who has left BetStop (unless more than 90 days have passed and they have since agreed to these messages), and anyone the bookmaker has identified as at risk of gambling harm.

The Act defines an inducement broadly: any payment or other benefit that could reasonably be expected to induce a person to gamble, including credit, a gift, a rebate, a reward, a token or a voucher.

Why you still see sign-up offers

If a site offers you a bonus for joining, it is usually one of three things: the page is meant for another country, the offer is old, or the site is not a licensed Australian bookmaker. ACMA lists betting services without an Australian licence among illegal online gambling services. Check the footer licence and the company before you sign up; our betting sites Australia guide shows how, and offshore betting sites Australia explains what you give up with an unlicensed one.

How bonus bets pay

A bonus bet is placed with promotional credit, and the stake does not come back. TAB's FAQs set out how it works there:

• Only the profit is paid: a $10 bonus bet at $2.00 that wins credits $10, not $20.
• The value of a bonus bet is not added to your account balance.
• Most bonus bets are valid for 7 days.
• They cannot be used on some bet types, including live bets and each way bets.
• Bonus bets of $2 or more can be split into two to five equal parts of at least 50 cents.

The maths: what a $10 bonus bet is worth

Because the stake is never returned, a bonus bet is worth less than cash, and how much less depends on the odds. Our formula, for a market with a 5% margin (a book adding up to about 105.26%), assuming that margin is spread evenly:

• Chance of winning = (1 / odds) / 1.0526
• Average value of a $10 bonus bet = $10 x (odds - 1) x chance of winning

For comparison, $10 of cash bet in the same market is worth about $9.50 on average at any of these odds, because a winning cash bet returns the stake as well.

Two cautions. Longer odds keep more value on average but lose far more often: at $10.00 the bonus bet loses about nine times in ten. And if long shots carry a bigger share of the margin than favourites, the gain at long odds is smaller than the table shows. Convert any price with our how to read odds guide before you choose.

Pundit tip: never add your own cash to "make the most" of a bonus bet. The bonus has value on its own; topping it up only adds cash bets at the bookmaker's margin.

Bonus bets and matched betting

Some punters use bonus bets with opposing bets elsewhere to lock in part of their value. The maths and the risks are in our matched betting Australia guide. The opposing bet is usually a lay on a betting exchange, and the lay bet calculator works out its liability.

Checks before you use a bonus bet

1. The expiry date, shown in the bet details.
2. Which bet types are excluded, and whether the bet can be cashed out.
3. Whether a minimum price applies to the promotion.
4. That the account is with a licensed Australian bookmaker.

A bonus bet is still a bet: count it inside your betting bank, not on top of it.

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