Is Arbitrage Betting Worth It? An Honest Australian Test
- Arbitrage locks are real but small, with a typical lock over the last 30 days sitting at 2.2% of total stakes.
- Work out the turnover you need to cover your costs by dividing your monthly cost by your average margin.
- Time is the most underestimated cost, so measure your effective hourly rate, including admin.
- Price moves, stake limits, voided bets and simple mistakes mean your realised margin will usually sit below the headline figure.
- A small, capped four-week trial with a full log will tell you more than any article can.
Is arbitrage betting worth it? For some Australians it is a tidy, low-margin side activity. For others, the time, bankroll and account limits make it a poor trade. This guide skips both the hype and the old 'arbing is dead' verdict, and gives you a decision framework instead. AUOdds data shows 630 locks across nine licensed Australian bookmakers in the last 30 days, with a typical lock of 2.2%. That tells you opportunities exist. Whether they are worth your effort depends on margins, turnover, hours and how you handle limits and voids. If you want earnings scenarios, our separate guide on how much you can make arbitrage betting in Australia covers that in detail.
- Is arbitrage betting worth it once you count the real margins?
- Does arbitrage betting work, and what does a lock look like?
- Is arbitrage betting profitable after the cost of tools?
- How many hours a week does arbing really take?
- What happens when limits, voids and price moves hit?
- Is arb betting worth it for everyone, or who should skip it?
- What's a simple test to decide if arbing is worth your time?
Is arbitrage betting worth it once you count the real margins?
A lock is a set of bets across different bookmakers that covers every outcome. It is priced so the combined return is higher than the combined stake. Each lock locks in a return at the prices shown, provided every bet is accepted and settled as expected.
The key word is small. The typical lock over the last 30 days was 2.2%. On $500 of total stakes, that is about $11. On $1,000, it is about $22. Both figures are before any mistakes, rounding or voided legs.
So the honest answer to whether arbitrage betting is worth it starts with a different question. What is roughly 2% of the money you can comfortably keep spread across bookmaker accounts? Multiply that by the number of locks you can realistically place.
Three things shape that number:
- Margin per lock. Plan around low single-digit percentages, not the occasional larger figure. Unusually big margins are also the ones most likely to involve a pricing error that gets corrected or voided.
- Stake per lock. Your bankroll is split across several accounts, and bookmakers can cap what you are allowed to bet.
- Volume. Locks appear and vanish quickly. You only earn on the ones you actually place in full.
If the result looks like pocket change for the hours involved, arbing probably isn't for you. If it looks like a reasonable return on spare time, the next sections will help you test that properly.
Does arbitrage betting work, and what does a lock look like?
Does arbitrage betting work? Mathematically, yes. Here is a pre-match tennis example with two possible outcomes.
- Bookmaker A offers Player 1 at 2.08
- Bookmaker B offers Player 2 at 2.02
Convert each price to an implied probability: 1 ÷ 2.08 = 0.4808 and 1 ÷ 2.02 = 0.4950. Together they add to 0.9758. Any total under 1.00 means a lock exists. Here the return is 1 ÷ 0.9758, or about 2.48%.
With $500 in total:
- Stake $246.34 on Player 1 at 2.08, returning $512.39 if they win
- Stake $253.66 on Player 2 at 2.02, returning $512.39 if they win
Whichever player wins, you get back about $512.39. That is a return of roughly $12.39 at the prices shown.
So arbitrage betting works on paper. Whether it works in practice depends on everything that sits between the calculation and settlement:
- Both bets must be accepted at those exact prices.
- You may round stakes to whole dollars so your betting looks ordinary, which trims the margin slightly.
- Both bookmakers must settle the market the same way. Check each bookmaker's own rules for situations such as a player retiring injured, because settlement rules are not identical everywhere.
Locks are placed before the event starts. Online in-play sports betting isn't offered to Australians, so every lock in this guide is pre-match.
Is arbitrage betting profitable after the cost of tools?
Is arbitrage betting profitable once you pay for tools? The cleanest test is to work out the turnover you need just to break even.
Use this formula: monthly cost ÷ average margin = turnover needed.
Say a tool costs $50 a month. This is an example figure, not a quote for any service. At a 2.2% average margin:
- $50 ÷ 0.022 = about $2,273 of total stakes per month to cover the cost
- At $500 per lock, that is roughly five locks
- At $200 per lock, it is about 12 locks
Everything after that point is your return at the prices shown, less any losses from mistakes or voids.
Now stress test it. If rounding and the odd missed second leg cut your realised margin to 1.5%, breakeven turnover rises to about $3,333. If one leg is voided and you are left holding an open bet that loses, a single error can wipe out the margin from many locks.
Also count these:
- Bankroll tied up. Your money sits across several accounts, not one, and withdrawals take time.
- Opportunity cost. Money and time spent arbing isn't available for anything else.
- Tax. ATO guidance generally treats gambling winnings as not assessable for most people, but the position can differ if your betting amounts to carrying on a business. Read the ATO material and get advice if you are unsure.
For broader earnings scenarios, see our guide on how much you can make arbitrage betting in Australia.
How many hours a week does arbing really take?
Time is the cost most people underestimate. Arbing isn't hard, but it is fiddly, and the work comes in bursts.
A typical week involves four kinds of work:
- Setup. You open and verify accounts with licensed Australian bookmakers. You only do this once, but it can take a few days. Use the ACMA's checker to confirm an operator is legal before you deposit.
- Watching for locks. Prices move constantly. AUOdds data shows about 15,000 prices tracked at any moment, each about 10 seconds old, with 391 locks found in the last seven days. You won't catch most of them, and you don't need to.
- Placing bets. You log in to two or three accounts, enter exact stakes and confirm each bet was accepted. Allow a few minutes per lock when things go smoothly.
- Admin. You record every bet, check settlement, move money between accounts and rebalance your bankroll.
A realistic rhythm for many people is a few short sessions each week, not hours glued to a screen. If you can only check in once a day, you will miss many locks, because good prices tend to get corrected quickly.
Be honest about your hourly rate. Say you place ten $300 locks a week at 2%. That is around $60 before errors. Divide it by the hours you actually spend, including admin. Then compare the result with what your time is worth to you.
What happens when limits, voids and price moves hit?
This is where the 'it's dead' crowd has a point, and where promotional pages go quiet. Arbing carries real risks, even though each lock locks in a return at the prices shown.
Prices move. You place the first leg, then the second price drops before you confirm. You are now choosing between a smaller margin, a small loss or an open bet. The fix is to place the leg most likely to move first, usually the price that sits furthest from the rest of the market. Skip any lock you can't complete quickly.
Stakes get limited. Bookmakers are entitled to manage their own risk. Accounts that only back outlying prices can find their maximum stakes reduced. That shrinks your turnover and pushes up the breakeven point from the earlier section. Our guide on arbitrage betting and how to not get banned covers sensible habits.
Bets can be voided. Obvious pricing errors may be cancelled under a bookmaker's terms. Differing settlement rules can also leave one leg standing while the other is void. Treat larger-than-usual margins with extra caution.
Mistakes happen. Backing the wrong player, typing $2,463 instead of $246.30 or picking the wrong market can turn a small edge into a real loss.
None of these make arbing pointless. They do mean the 2.2% headline is a ceiling, not a promise. Your realised margin will usually be lower.
Is arb betting worth it for everyone, or who should skip it?
Is arb betting worth it for everyone? No. It suits a fairly specific kind of person, and it's better to know early if that isn't you.
Arbing is probably not for you if:
- You are hoping for excitement. A well-placed lock is deliberately boring.
- You have a small bankroll that you can't afford to have tied up across several accounts.
- You can't check in during the day or evening, when prices are changing.
- You dislike record keeping. Without a clean log, you won't know whether you are actually ahead.
- You have ever felt the urge to chase a loss or top up a bad result with a riskier bet.
- You are on BetStop, or betting is already causing stress in your life.
It may suit you if you:
- Are organised and comfortable with numbers.
- Treat it as a small, steady side activity rather than an income.
- Have spare money you can leave in accounts without needing it next week.
- Accept that limits will eventually reduce what you can do, and you are fine with that.
If the first list sounds more like you, the honest answer is to skip it. That is a perfectly sensible decision, not a missed opportunity.
What's a simple test to decide if arbing is worth your time?
Run a four-week trial before you commit. Keep it small, and treat it as a test rather than a launch.
- Set a fixed bankroll you are comfortable having tied up, and don't add to it during the trial.
- Cap your hours. Decide in advance how many sessions you will do each week.
- Log everything. Record time spent, stakes, odds, the margin at the prices shown and the actual settled result.
- Record problems. Note every price move, rejected bet, void and mistake, along with the dollar impact of each.
- Review at the end. Compare your realised return with your costs, then divide it by your hours.
People often search 'arbitrage betting does it work' hoping for a simple yes or no. Your trial log will give you a better answer than any article, because it reflects your bankroll, your time and your accounts.
If the numbers look fine and you found the process manageable, keep going at the same size before you scale up. If they don't, stopping is a perfectly good outcome.
A reminder: betting is for adults 18 and over. If gambling stops feeling like a controlled activity, BetStop, the National Self-Exclusion Register, lets you exclude yourself from licensed online and phone betting providers. Gambling Help Online also offers free, confidential support.
Frequently asked questions
Is arbitrage betting profitable in Australia?
It can be, but margins are thin. The typical lock over the last 30 days was 2.2% of total stakes, so your return depends on how much you can stake and how many locks you place. Costs, rounding, price moves, stake limits and voided bets all reduce your realised margin. Treat it as a small side activity, not an income.
Is arbing dead now that bookmakers limit accounts?
No. Locks still appear regularly across licensed Australian bookmakers. Limits are real, though. Bookmakers can reduce the maximum stake on accounts, which shrinks your turnover over time. That doesn't make arbing pointless, but it does mean you should plan for your capacity to shrink, and you should judge it on a realistic trial rather than early results.
How much time does arbitrage betting take each week?
Expect a one-off setup period to open and verify accounts, then a few short sessions each week. Each lock takes a few minutes to place when things go smoothly, plus time for record keeping and moving money between accounts. Track your actual hours during a trial so you can work out a true hourly rate.
Do I pay tax on arbitrage betting returns?
Australian Taxation Office guidance generally treats gambling winnings as not assessable income for most people. The position can differ if your betting activity amounts to carrying on a business. Because everyone's circumstances are different, read the ATO's published guidance and speak with a registered tax agent if you are unsure how it applies to you.
Sources
- Taxation Ruling IT 2655: gambling and betting winnings, Australian Taxation Office
- Crypto asset prizes and gambling winnings, Australian Taxation Office
- Check if a gambling operator is legal, Australian Communications and Media Authority
- BetStop: the National Self-Exclusion Register, Australian Communications and Media Authority
- BetStop, Australian Government
More guides
18+ only. Betting involves risk, and prices and limits can change before you place a bet. If gambling isn't fun any more, Gambling Help Online (1800 858 858) is free and confidential, and BetStop lets you exclude yourself from every licensed Australian bookmaker.