Is arbitrage betting legal? Tax and legality basics

Is arbitrage betting legal?

In most places where online sports betting is legal, arbitrage and value betting are legal too. There is nothing special about them from a legal point of view. You are placing ordinary bets with licensed bookmakers, at prices they chose to offer. Using software or a service to find those prices does not change what the bets are.

What arbing is not, is welcome. Bookmakers are businesses that profit from customers who lose over time, and they are allowed to decide who they do business with. Their terms usually let them limit stakes, remove promotions or close accounts, often without giving a reason. That is a commercial risk, not a legal one, and it is covered in our guide to bookmaker limits.

If online betting is not legal where you live, arbing does not make it legal. The same goes for using bookmakers that are not licensed to serve your country.

Terms, accounts and age

The real legal and practical risk is not the arbing itself. It is what some people do to keep arbing after they are limited:

• Using someone else's account, or letting someone use yours. This breaks every bookmaker's terms and, depending on the country, may also break anti-money-laundering or fraud laws.
• Opening multiple accounts at the same bookmaker, or accounts in other people's names.
• Giving false details such as a wrong name, address or date of birth.

The usual result is confiscated balances and closed accounts. In some cases it can go further. It is not worth it. Play under your own name, with your own money, on your own accounts.

Two other basics:

• Only use licensed bookmakers that are allowed to serve customers in your country. Apart from the legal side, an unlicensed bookmaker gives you little protection if it refuses to pay.
• You must be 18 or over, or older where the local minimum age is higher.

ArbVantage is an information service. We show prices and calculations; we do not take bets or hold your money. Our terms of service explain what we do and do not provide.

Tax in the UK and Ireland

United Kingdom. Gambling winnings are generally not taxed for the individual bettor. Betting duties are paid by the operators instead. This applies to most people who bet as individuals, including arbers. The position can be different if betting is part of a wider trade, for example if you are a bookmaker yourself, so check if your situation is unusual.

Ireland. The position is broadly similar: winnings are generally not taxed for the bettor, and betting duty is charged on the operator side.

"Not taxed" does not mean "never asked about". If you have large deposits and withdrawals moving through your bank account, it helps to be able to show where the money came from.

Tax elsewhere

Outside the UK and Ireland the picture varies a lot, so treat this as a list of patterns to look for rather than answers:

• Winnings taxed as income. Some countries tax gambling winnings, sometimes above a threshold, sometimes with a withholding by the operator.
• Licensed vs unlicensed operators. Some countries exempt winnings from locally licensed operators, or from operators licensed in the EU/EEA, while taxing winnings from other operators. Where you place a bet can matter as much as how much you win.
• Professional gambling. In some countries, betting that looks systematic and regular, which arbing often does, can be treated as business income rather than as a private activity.
• United States. Gambling winnings are generally taxable, and in many cases you need to report them even when no form is issued. Rules on deducting losses have specific conditions and have changed over time, so check the current rules for your year.

Because arbing involves many bets with small margins, the difference between being taxed on net profit and being taxed on individual winning bets can be enormous. If your country could tax you, find out which way it works before you scale up.

Keep records anyway

Whatever the rules where you live, keep a clean record. It costs little and solves several problems at once:

• Every bet: date, bookmaker, event, market, odds, stake, result and profit or loss.
• Every deposit and withdrawal for each bookmaker and exchange, with dates and amounts.
• Balances at the start and end of each year.
• Screenshots of anything disputed.

A record lets you show net results to a tax office if asked, explain transactions to your bank, and see honestly whether you are making money. It is also the only way to tell if your bankroll plan and staking are working. ArbVantage's bet tracker logs your bets and exports them as a CSV file you can keep or share with an accountant.

If your country may tax your betting, or your volume is large, talk to a local tax adviser. One meeting is cheap compared with getting it wrong for several years.

Banks and gambling transactions

Arbing and value betting mean many deposits and withdrawals spread over many bookmakers. Some banks treat lots of gambling transactions as a risk signal. They may ask questions, take it into account in a mortgage or loan application, or in some cases restrict gambling payments on the account.

Practical habits that help:

• Use one dedicated account or card for betting, separate from your salary and bills.
• Withdraw profits regularly rather than leaving large balances spread across bookmakers.
• Keep your records up to date so you can answer questions quickly and clearly.
• If you are planning a mortgage application, consider how a year of heavy betting activity on your statements will look.

Stay in control

Arbing is betting. Bets get voided, prices move before your second leg is placed, and value betting can run cold for months. Set limits on money and time you can afford, and stop if it stops being something you choose to do. Our responsible gambling page lists free, confidential support services.

For the betting side itself, start with how sure betting works and how to size stakes sensibly.

A final reminder: this page is general information, not legal or tax advice. Rules differ by country and change, so check with your local authorities or a qualified adviser.