Free bets: what they are really worth and how to convert them

This guide uses a stake-not-returned (SNR) free bet: the promotional stake is excluded from the payout. Some offers return the stake or apply wagering requirements to winnings, so check the terms first.

The comparison:

• A normal $50 bet at odds of 3.00 returns $150 — your $50 back plus $100 profit
• A $50 free bet at 3.00 returns $100 — the profit only

The payout from a winning $50 SNR free bet at 3.00 equals the total return from a winning $50 cash bet at 2.00, but the cash bet risks your own stake. The higher the odds, the smaller the proportional loss, which is the key to using them.

What that means for real value:

• Used on a short-priced favourite at 1.50, a $50 free bet is worth at most $25
• Used at 5.00, it is worth up to $200 if it wins, but wins rarely
• Hedging may convert part of its face value into cash — for example, $35 to $40 from a $50 free bet, depending on prices, commission and settlement

The other terms that reduce it further: minimum odds requirements, expiry dates, market restrictions, and caps on winnings. Every one is in the terms and every one costs you something.

The principle: place the free bet on one outcome, and cover the other outcome with your own money so that you profit whichever happens.

The steps:

1. Choose a market with two outcomes, so it can be covered completely. For example, a tennis match winner market or a half-goal Asian handicap in football; check that settlement rules match
2. Place the free bet at relatively long odds, typically between 4.00 and 6.00. Longer odds extract more, because the unreturned stake is a smaller share of the return
3. Cover the opposing outcome with your own cash, either on an exchange by laying your selection, or at another bookmaker on the opposite result
4. Size the cover so that both outcomes leave you with the same profit
5. Whatever happens, you keep the difference — and it is cash, not a free bet

Why longer odds are better here: at 2.00 the unreturned stake is half the return. At 6.00 it is a sixth. The extraction rate rises with the odds, up to the point where covering becomes expensive.

The cleanest tool is an exchange, because you can lay the exact selection. Without one, you cover on another bookmaker, which works but costs more because you pay a second margin.

Using an exchange to lay your selection:

Lay stake before commission = free bet stake × (back odds − 1) ÷ lay odds

This example assumes a stake-not-returned (SNR) free bet. The formula above ignores commission, so the net profit differs slightly between outcomes. To equalise it after commission, divide by (lay odds − commission rate), with 2% entered as 0.02.

A worked example. A $50 free bet backed at 5.00, exchange lay price 5.20, commission 2%.

• If it wins: you receive $200 profit
• Lay stake = (50 × 5 − 50) ÷ 5.20 = 200 ÷ 5.20 = $38.46
• Your liability on the lay = 38.46 × 4.20 = $161.53
• If the selection wins: +$200 from the free bet, −$161.53 liability = +$38.47
• If it loses: the free bet is gone, and you win the lay stake of $38.46 less 2% commission = +$37.69

Either way, about $38 in cash from a $50 free bet — roughly 76%.

Covering at a second bookmaker instead, on a two-way market:

• Back the opposing outcome with cash, staking so both outcomes return the same
• The extraction rate is lower, usually 60% to 70%, because you pay the second bookmaker's margin instead of a small commission

The rule of thumb: exchange lay extracts around 75 to 80%. Bookmaker cover extracts around 60 to 70%. Using the free bet without covering at all is a gamble, not a conversion.

1. Using them on short-priced favourites. The single most common error. At 1.40, the unreturned stake destroys most of the value.

2. Letting them expire. Free bets have deadlines, often seven days. Diary them the moment they land.

3. Missing the minimum odds requirement. Many free bets specify a minimum price. Placing below it voids the offer, and the money is simply gone.

4. Splitting them when the terms forbid it, or failing to split when the terms allow it and a smaller stake would be easier to cover.

5. Covering the wrong market. The free bet and the cover must be on exactly the same event and the same market definition. Different settlement rules between operators — extra time, retirements, postponements — turn a covered position into an exposed one.

6. Ignoring the maximum winnings cap. Some free bets cap what you can win regardless of odds. Backing at 10.00 under a cap of $100 wastes the entire strategy.

7. Chasing the qualifying bet. Many free bets require a qualifying cash bet first. That bet has a cost, and it must be counted against the value of the free bet. If the qualifying loss exceeds the extraction, the offer was not worth taking.

8. Forgetting it is taxable or reportable where that applies in your jurisdiction. Extraction produces cash, and cash may have consequences.