The best betting exchanges in the UK by commission

What a betting exchange is

A traditional bookmaker sets the odds and takes the other side of every bet. An exchange does neither. It runs a marketplace where one customer offers odds that a result will not happen and another accepts them, and it matches the two. Prices come from supply and demand among customers, and the exchange earns its money from commission.

Backing on an exchange works like a normal bet: you stake money on an outcome at the odds shown. Laying is the reverse, and it is the feature bookmakers do not offer. When you lay, you act as the bookmaker for that bet, accepting a stake from someone else and paying them out if the selection wins.

Betfair Exchange and Smarkets hold Remote Betting Intermediary licences from the Gambling Commission, the category for firms that bring bettors together, and Matchbook’s operator Triplebet Limited is licensed by the Commission too. All three must follow the same safer-gambling, identity and complaints rules as any bookmaker, and all three appear on the Commission’s public register.

Back and lay, with a worked example

Say a football team is available to lay at 4.0 and you accept a £10 backer’s stake. If the team loses or draws, you keep the £10, minus commission on that net win. If the team wins, you pay out £30, the backer’s profit at those odds. That £30 is your liability, and the exchange holds it from your balance.

The arithmetic shows why laying is no shortcut. At long odds a small stake carries a large liability: laying £10 at 11.0 puts £100 on the line. Exchanges display the liability before you confirm, and it is worth reading that figure every time, since it is the amount that leaves your account if the selection comes in.

Backers and layers can also trade. Back a team at one price, lay it later at a shorter one, and the gap between the two fixes your profit or loss whatever the result. Exchanges call the tools for this cash out or Trade Out. They depend on someone taking the other side, so they work best on busy markets.

Commission on net winnings, explained

Exchanges charge commission instead of building a margin into the prices. It is taken from your net winnings on each market, so a market where you lose costs nothing, and a market where you back and lay several selections is settled as one. Winnings across different markets are not netted against each other, only the result within each.

To compare an exchange price with a bookmaker’s, reduce it by the commission first: odds after commission equal one plus the original odds minus one, times one minus the rate. At 5%, odds of 4.00 become 3.85. That adjusted price is the fair comparison, and it is how the exchange table further down this page is built.

Structures differ as well as rates. Betfair applies a Market Base Rate of 5% and offers packages that change it. Smarkets charges 2% on net winnings per market on its standard tier. Matchbook also charges 2% of net winnings per market for UK customers, and runs commission-free Matchbook Zero markets on selected football and racing, with payout caps.

Betting exchange sites in the UK

These are the betting exchange sites in the UK that customers can join under a Gambling Commission licence. Each covers football, racing and the major sports, offers lay betting and in-play markets, and supports the standard account tools: deposit limits, time-outs and self-exclusion. The real differences lie in commission, market depth and the extras built around the exchange itself.

Betfair Exchange

Betfair launched the first betting exchange in June 2000 and it is still the biggest. The exchange is run by TSE Malta LP, part of Flutter Entertainment, under a Remote Betting Intermediary licence. Its Market Base Rate is 5% of net winnings per market, and customers can switch between the exchange and the Betfair Sportsbook from one account.

The My Betfair Rewards packages change that rate. Basic charges 2% but shuts you out of Sportsbook and Exchange promotions, Rewards keeps the 5% base rate, and Rewards+ charges 8% in return for enhanced rewards such as a monthly loss refund. For most punters Basic is the better pick unless they use promotions often enough to cover three extra points.

The most profitable customers pay more. Since 6 January 2025 the Expert Fee has replaced the old Premium Charge, which could reach 60%. It looks at gross profit over the last 52 weeks in which your account was active, and it applies only to accounts in lifetime profit that have bet on more than 100 markets: nothing under £25,000, 20% between £25,000 and £100,000, and 40% above that. The rate is a total, not an extra. Each week Betfair tops up the commission you generated until your fees reach that share of your gross profit, after a buffer for earlier losses and commission. Betfair said the change would halve the number of customers who pay.

Smarkets

Smarkets was founded in 2008 and trades through Smarkets (Malta) Limited, which holds a Remote Betting Intermediary licence from the Gambling Commission. It charges 2% on net winnings per market on its standard tier, nothing on losses. Smarkets sets no personal stake limits, so the maximum bet depends only on the money available in the market at the time.

The platform is built around trading. Trade Out closes a position at the current price, live charts show how the odds have moved, and new customers are asked to pick a net deposit limit before the first deposit. Smarkets also runs SBK, an app-only fixed-odds sportsbook built on the exchange, for punters who prefer set prices.

Matchbook

Matchbook has traded since 2004 and is operated by Triplebet Limited under a Gambling Commission licence. Commission is a low per-market rate on net winnings, set out in Matchbook’s own terms, and selected football and racing markets run commission-free under Matchbook Zero, subject to payout caps. Football is its deepest sport, with racing and tennis also well covered.

Its extras are practical. Matchbook offers full and partial cash out, a fixed-odds Bet Builder with up to 12 selections from one football match, and streaming on selected racing and greyhound events. PayPal is not accepted, so punters who rely on it should check the payment list before signing up and keep a debit card ready instead.

Exchange prices compared with bookmakers

Exchange margin, match result (1X2), all tracked English and Scottish football — odds captured daily over the last 13 days

#	Exchange	Median margin	Average	Markets priced
1		2.14%	2.22%	169
2		3.05%	5.58%	219
3	exchange	4.38%	4.68%	181

The table shows the median margin on football match-result markets for each exchange after commission. We deduct each exchange’s standard commission from every back price before adding up the implied probabilities, so the figure is what a backer really pays. It can be read directly against the bookmaker tables on our bookmaker margins page.

In our data the exchanges sit at or near the cheap end of the whole margin range, ahead of most fixed-odds firms. A lower base rate helps, but depth matters too: a thin market quotes wide prices, and that shows up as a higher margin. Read the order as a guide to typical cost on mainstream football markets.

Two cautions apply. The table uses standard rates, so a Betfair customer on the Basic package or a Smarkets customer in a commission-free period pays less than shown, and a Rewards+ customer pays more. The figures also cover English and Scottish football only. Racing prices are outside our measurements, however attractive exchange odds on horses may look.

The best betting exchange for different punters

For a football punter who mostly backs at fair prices, the best betting exchange on cost is Smarkets or Matchbook, both at 2% of net winnings against Betfair’s 5% base rate. Smarkets adds strong Premier League liquidity. Check the measured table first, though, since a thin market can wipe out the benefit of a low rate on any individual fixture.

Traders, in-play punters and anyone staking large amounts on racing should start with Betfair Exchange. Its depth means big orders match at the price on screen, and third-party trading software connects through its API. The 5% base rate is the cost of that depth, and the Basic package cuts it to 2% for anyone who never uses promotions.

Matchbook suits football bettors who want a low rate and the occasional Matchbook Zero market, and who are comfortable on a smaller exchange. Its fixed-odds Bet Builder gives it a foot in both camps. It makes a sensible second account next to Betfair, letting you take whichever price is better on the day you bet.

High-volume winners face a different calculation. On Betfair the Expert Fee starts once gross profit over the last 52 active weeks passes £25,000, so the effective cost rises steeply for the most successful accounts. Anyone whose profits approach that threshold should compare the full fee structures of all three exchanges, because the headline rate stops being the number that matters.

For a casual punter betting a few pounds at weekends, the exchange question matters less than it seems. Commission on small wins is small, and the bookmaker concessions mentioned above may be worth more. An exchange account still earns its place as a price check, even if most of your bets stay with a bookmaker.

Licensing and safer gambling on exchanges

Every exchange in this guide is licensed by the Gambling Commission and listed on its public register, where you can check the licensee and the domains it trades under. Since 31 October 2025 all operators must prompt you to set a financial limit before your first deposit, and all must take part in GAMSTOP.

Lay betting deserves extra care with limits, because a liability can be many times the stake you accepted. Set deposit limits before you start, check the liability on every lay, and take a time-out if a session runs longer than planned. A dispute still unresolved after eight weeks can go to an independent ADR provider free of charge.

How we measured exchange prices

Each day we record the exchange back prices a commercial odds feed carries for the same seven English and Scottish football competitions used for bookmakers. For every fixture the last snapshot before kick-off counts. Standard commission is deducted from each price, the median margin across fixtures is published, and quotes implying more than a 30% margin are discarded.

Racing is not measured, and bet365 is outside the feed altogether. The tables are refreshed weekly from a rolling 28-day window, so the order can shift as liquidity changes from one month to the next. The data stamp underneath gives the fixture count and the dates on which the odds were captured.