You can make money betting, but punters as a whole lose money, and there is no guarantee of profit for anyone. Australian Gambling Statistics, the official national collection, puts wagering expenditure in 2024-25, the amount bet on racing, sport and other events minus the amount won back, at about $8.45 billion.
That loss is built into the prices. Every bookmaker market carries a margin, so betting at the prices on offer loses money on average: about $4.76 per $100 on an illustrative two-way game and $13.04 on an illustrative race, both worked below. Coming out ahead takes an edge: prices longer than the fair price each result's real chance implies, over a long run of bets, staked with discipline and logged well enough to show it is method rather than a lucky run.
Where the money goes: the margin in one race, worked
Convert each price to a chance with 1 / price, and the chances in a bookmaker's market total more than 100%. With illustrative prices for a seven-runner race:
| Runner | Price | Implied chance: 1 / price | Fair chance: implied / 1.15 |
|---|---|---|---|
| Runner 1 | $2.50 | 40.0% | 34.78% |
| Runner 2 | $4.00 | 25.0% | 21.74% |
| Runner 3 | $5.00 | 20.0% | 17.39% |
| Runner 4 | $8.00 | 12.5% | 10.87% |
| Runner 5 | $10.00 | 10.0% | 8.70% |
| Runner 6 | $20.00 | 5.0% | 4.35% |
| Runner 7 | $40.00 | 2.5% | 2.17% |
| Total | 115.0% | 100.00% |
The 15% above 100% is the overround. Taking it out evenly across the field, the simplest method, divides each runner's implied chance by 1.15 to give its fair chance. If those fair chances are right, any runner backed at its price returns 100 / 1.15 = $86.96 per $100 staked on average: a loss of $13.04, whichever runner you pick.
Other markets carry different margins. With illustrative prices:
| Market | Prices add up to | Average return per $100 | Average loss per $100 |
|---|---|---|---|
| Two-way game at $1.25 and $4.00 | 80% + 25% = 105% | 100 / 1.05 = $95.24 | $4.76 |
| The seven-runner race above | 115% | 100 / 1.15 = $86.96 | $13.04 |
| Four-leg multi of games like the first | 1.05 x 1.05 x 1.05 x 1.05 = 121.55% | 100 / 1.2155 = $82.27 | $17.73 |
A multi multiplies its legs' prices, so it multiplies their margins too. To check the margin on markets you bet yourself, bookmaker margin walks through the sum and the bookmaker margin calculator works it out from your own prices.
The same arithmetic runs through the national figures. Australian Gambling Statistics (41st edition, released 11 August 2026) defines expenditure as the amount wagered less the amount won, which it also describes as the operators' gross profit. For wagering in 2024-25 that was about $8.45 billion, or about $391 for every adult.
The margin is charged on every dollar you turn over
The margin comes off turnover, the total of every stake including winnings you bet again, not off the money you deposit. With illustrative stakes, bet $25 twelve times a week and you turn over $15,600 in a year, perhaps from a starting bankroll of $1,000.
| Where you bet | Expected loss on $15,600 of turnover |
|---|---|
| Two-way games at 105% | 15,600 x 0.05 / 1.05 = $742.86 |
| Races at 115% | 15,600 x 0.15 / 1.15 = $2,034.78 |
On the racing prices, the expected loss is about twice the $1,000 you started with, so on average that bankroll would be gone well before the year was out. The size of any one bet matters less than the total you put through the margin.
Luck still hands some punters a winning year. Put all 624 of those bets (12 a week for 52 weeks) on the $4.00 outsider in games like the first, a true chance of 0.25 / 1.05 = 23.81% each. Finishing ahead takes 157 winners (157 x $100 = $15,700 back on $15,600), which happens about 23% of the time (binomial distribution). So more than 1 in 5 punters who back those outsiders with no edge at all end that year in profit. Backing the $1.25 favourite every time, ahead takes 500 winners (500 x $31.25 = $15,625) and happens about 1% of the time. A winning year is not proof of an edge.
Is betting profitable for anyone?
It can be, for punters whose prices beat the margin, and the gap they need is wider than it looks. In the two-way game, the fair price of the $1.25 favourite is 1.25 x 1.05 = $1.3125. A 3% edge needs 1.3125 x 1.03 = about $1.35, which is 1.05 x 1.03 = 1.0815 times the price on offer, or 8.15% more.
Punters who find that gap share three habits:
| Habit | What it means | How to check it |
|---|---|---|
| Price | Taking only prices above a fair price, comparing bookmakers, and using promotions already on the account | Your price compared with the final pre-start price, margin removed |
| Discipline | Staking a small, fixed share of a bankroll you can afford to lose, and never raising stakes to win back losses | A written staking rule, and a deposit limit with each bookmaker |
| Records | Logging every bet with its price, stake, closing price and result | Yield and closing line value over hundreds, then thousands, of bets |
Promotions add value only within limits. The national consumer protection framework bars bookmakers from offering any reward or other benefit as an incentive to open an account. Under the same framework, winnings from a bonus bet must be withdrawable without turnover requirements, while each bookmaker's terms decide how the bonus bet itself works. Nothing sold as a shortcut changes the margin either. Staking systems alter stake sizes, never prices, and Scamwatch, run by the ACCC, describes sports investment schemes as just another form of gambling, often an outright scam (checked October 2026).
Matched betting and arbitrage are often sold as ways to make money from betting, but neither is certain: prices move, an exchange lay has to be matched, and a bet can be refused or voided. Many bookmakers' terms also restrict or prohibit multiple accounts, automated betting and third-party access, and let the bookmaker limit stakes, void bets or close an account, a risk that is yours. Matched betting and arbitrage betting set out how each works and where it fails.
The betting strategy hub covers all three habits, and how to beat the bookies weighs the methods that can get past the margin. Turning an edge into a living is harder again, as becoming a professional punter shows.
Risk: Betting involves risk. A bet above the fair price can still lose, and often does; a bonus bet that loses pays nothing; and a fair price is an estimate that can be wrong. There is no guarantee of profit. See responsible gambling for limits and support.
What making money from betting costs
An edge earns turnover x edge, and four costs come off that before anything is left. With illustrative numbers:
| Cost | Example | What it does to the result |
|---|---|---|
| Time | 10 hours a week finding prices and keeping records | $1,500 a week of turnover x 0.03 edge = $45 expected, or 45 / 10 = $4.50 an hour |
| Capital | $400 left in each of six bookmaker accounts | 6 x $400 = $2,400 tied up on top of your bankroll |
| Account restrictions | Maximum stake cut from $50 to $15 | At a 3% edge, 50 x 0.03 = $1.50 a bet becomes 15 x 0.03 = $0.45, 70% less |
| Software and data | An $80 a month subscription | Needs 80 / 0.03 = $2,667 of turnover a month just to cover it |
Restrictions hit hardest, because they cut the turnover an edge needs. A bookmaker can shrink your maximum stake, withdraw promotions or shut the account under its terms, and steady winning is one of the things that triggers it, as why bookmakers restrict accounts explains.
Risk: Betting involves risk. The $45 a week is the average for a real 3% edge, not what any one week pays, and an estimated edge can turn out smaller or not there at all, so there is no guarantee of profit. See responsible gambling for limits and support.
Tax if you come out ahead
In Australia, winnings are not assessable income for most people, and losses are not deductible, unless betting is carried on as a business. The ATO's ruling IT 2655, issued on 17 October 1991, sets out the tests for that, and tax for professional gamblers walks through them.
The point of consumption taxes charged by the states and the ACT are paid by bookmakers on their net wagering revenue; they are not taken from your winnings. Tax on gambling winnings in Australia explains both. This is general information; for advice on your own position, see a registered tax agent or ask the ATO.
Bad luck, the margin or a warning sign
When the losses keep coming, check three things in this order:
- The margin. Calculate your yield (profit divided by total staked) and compare it with what the margin costs per dollar staked: 1 - 100 / market percentage. A long record that loses at about that rate, such as 13 cents in the dollar on races like the one above (1 - 100 / 115 = 13.04%), is most likely the margin, not bad luck.
- Variance. A real edge still has long losing runs, more so at long prices, and variance in betting shows how deep they go. Closing line value separates luck from method sooner than profit can.
- Harm. Chasing losses, betting more often or for longer than you meant to, keeping your betting secret or borrowing to carry on are signs of a gambling problem, whatever your yield says.
Betting to fix money problems: get help first
Betting cannot fix debts, bills or rent: at bookmaker prices the average bet loses money, and needing a win makes it harder to stop after a loss. If that is where you are, stop betting and talk to someone first.
- Gambling Help Online: free, confidential counselling on 1800 858 858 or by online chat, 24 hours a day, 7 days a week, for anyone affected by gambling, family and friends included.
- The National Debt Helpline: free financial counselling on 1800 007 007, on weekdays.
- Lifeline on 13 11 14 for crisis support, or 000 if anyone is in danger.
Gambling help services in Australia explains what each one does. Two tools add a hard stop. Australian online bookmakers have to offer deposit limits, and lowering one takes effect immediately, while an increase waits 7 days. BetStop, the free Australian Government register launched on 21 August 2023, blocks you from Australian online and phone betting providers for 3 months up to a lifetime. You register yourself, and an exclusion can be extended but not shortened.
Never borrow to bet. Online and phone wagering providers have not been allowed to take payment by credit card, credit-linked digital wallet or digital currency since 11 June 2024.
Risk: Betting involves risk, and no betting method turns it into a steady income. See responsible gambling for limits and support. For free and confidential support call 1800 858 858 or visit gamblinghelponline.org.au.