Short version: open Smarkets first — 2% commission, the simplest interface, and enough liquidity for the football markets most welcome offers use. Add Betfair within your first month, because horse racing and in-play offers need its liquidity and nothing else comes close. BETDAQ is a genuine 2% alternative worth holding as a third option. Matchbook is the specialist pick and the least necessary. Most people end up with two accounts, and that is the right number.
First, the thing most comparisons get wrong
Almost every “best betting exchange” article ranks on commission, because commission is the easiest thing to put in a table. For matched betting specifically, it matters less than you would think.
Commission is charged on net winnings in a market. In matched betting your exchange account is usually the losing side — the profit lands with the bookmaker, and the exchange is where you pay it back to cover yourself. Over a year of welcome offers, plenty of matched bettors pay very little commission at all, because there is not much net winning to charge it on.
What actually decides the experience is liquidity — whether there is enough money in the market to match your lay at the price you want. A 2% exchange that cannot match your bet is worse than a 5% exchange that can. Commission is the tiebreak, not the decision.
Commission compared
| Exchange | Standard rate | Charged on | Worth knowing |
|---|---|---|---|
| Smarkets | 2% | Net profit per market | Pro tier drops to 1%; Select tier rises to 3% above £25,000 net profit in 12 months |
| BETDAQ | 2% | Net market winnings | Flat, no tiers. 5% outside UK, Ireland, Gibraltar and Jersey. Some sports carry enhanced rates, marked in the market |
| Betfair | Market Base Rate, commonly 5% in GB* | Net winnings per market | Reduced by a Discount Rate earned through Betfair Points. Commission = net winnings × MBR × (100% − discount) |
| Matchbook | 2% UK, 4% rest of world* | Net winnings only | Charges only on winning bets rather than net market position |
Smarkets and BETDAQ rates taken from their own help documentation, checked September 2026. Betfair publishes its Market Base Rate table as an image rather than text, so the 5% figure is the widely reported GB rate rather than one we could read directly — check yours in your account. The Matchbook figures come from a third-party source rather than an official Matchbook page. Rates change; confirm before you rely on them.
The tier trap nobody mentions
Smarkets is usually recommended as “the 2% one”, and for almost everyone it is. But its commission is tiered: a Pro tier at 1% for active traders, and a Select tier at 3% for customers exceeding £25,000 net profit over twelve months. Smarkets says only around 0.2% of customers reach those thresholds, so this is not a reason to avoid it — but “2% flat” is not quite the whole story, and BETDAQ’s flat 2% genuinely is.
Betfair’s equivalent is the premium charge, applied to accounts that are consistently very profitable over a long period. Matched bettors rarely trigger it, for the reason above: the exchange account is not usually where the profit sits. It becomes relevant if you later move into trading or arbitrage.
Liquidity: the one that actually matters
Betfair is the largest exchange in the world and has more money in almost every market. For horse racing it is not close — if you intend to do racing offers, extra places or anything in-play, you need a Betfair account, whatever its commission.
Smarkets has ample liquidity on major football, which is what most welcome offers are placed on. On a Premier League match-odds market you will not notice a difference. Move to a lower division, a minor sport or a niche market and you will.
BETDAQ is thinner than both, though better on Irish and UK racing than its size suggests. Matchbook concentrates its liquidity in US sports and a narrower set of markets, which is exactly why it suits some people and not most.
The practical test is simple: before you place the bookmaker side, check the exchange has enough money available at the price you need. If it does not, and you place the back bet anyway, you are holding an uncovered position — see what to do when a lay bet will not match.
Interface
Smarkets is the cleanest of the four and the easiest place to place your first lay bet: decimal odds by default, an unambiguous lay button, and not much else on the screen. That matters more than it sounds when you are new and worried about clicking the wrong side.
Betfair packs far more onto the page and takes longer to learn, but its app is the best of the four and it handles fast-moving in-play markets properly. BETDAQ is functional and dated. Matchbook sits between the two extremes.
Whichever you use, work out the lay stake and liability before you get to the exchange rather than in the confirmation box — our matched betting calculator takes the commission rate as an input for exactly this reason.
Which should you open?
- Your first ever lay bet: Smarkets. Low commission, hardest to misclick, and new-customer commission-free promotions appear regularly.
- You want to do horse racing offers: Betfair, and it is not optional. Extra places and racing refunds live there.
- You want a genuinely flat rate with no tiers: BETDAQ at 2%, with the caveat that you will occasionally fail to get matched.
- You bet mainly on US sports: Matchbook is worth a look. For UK football and racing it is the least useful of the four.
Do you need more than one?
Two is the practical answer, and Smarkets plus Betfair is the standard pair: the low-commission default and the deep-liquidity fallback. Holding both means you can always take the better price, and it means a thin market on one is not the end of the offer.
The cost of a second account is split bankroll. Every account needs enough balance to cover liability, and liability is usually double or triple the lay stake, so two exchanges means holding more cash idle. If you are starting with a small bank, one exchange and a disciplined choice of offers beats two half-funded accounts.
A paid service’s oddsmatcher will show several exchanges side by side and make the per-bet choice automatic, which is one of the more genuinely useful things they do — see our free vs paid comparison.
Frequently asked questions
Is lower commission always better?
No. A better back-lay match on a higher-commission exchange usually beats a worse match on a cheaper one, and an exchange that cannot match your bet at all costs you the whole offer. Enter the real commission rate in the calculator and compare the actual result.
Do I pay commission when my lay bet loses?
No. Commission is charged on net winnings in a market. If you finish the market down, there is nothing to charge.
Will an exchange restrict me like a bookmaker does?
Not in the same way. Exchanges make money from commission regardless of whether you win, so they have no reason to limit winners. What they do have is higher-rate tiers and premium charges for the consistently very profitable. Gubbing is a bookmaker problem, not an exchange one.
Can I do matched betting without an exchange?
You can cover a bet by backing every other outcome at a second bookmaker, but it is slower, needs more accounts and usually costs more than exchange commission would. For practical purposes, matched betting needs an exchange.
We do not currently earn a commission from any of the four exchanges on this page, and this comparison was written with no affiliate relationship to any of them. Commission rates were checked in September 2026 against each exchange’s own documentation where it was published as text; figures marked * could not be verified directly. 18+ only. Please gamble responsibly. BeGambleAware.org
