How SNR Free Bets Work

Free bets are one of the most common rewards offered by bookmakers. They can be used to place bets without staking your own cash, but an important detail affects how much they're actually worth.

Many bookmaker free bets are Stake Not Returned (SNR). This means that if your free bet wins, you receive the winnings but not the original free bet stake.

For example, a £10 SNR free bet placed at odds of 5.00 would generate £40 in winnings if successful, rather than £50.

This is why a free bet's advertised value isn't necessarily the amount you'll be able to withdraw.

In traditional matched betting, an SNR free bet can be used alongside an opposing lay bet on a betting exchange. When both bets are correctly calculated and fully matched, the aim is to balance the result across the possible outcomes.

This can allow some of the promotional value to be converted into cash. However, changing odds, unmatched bets, settlement differences and mistakes can still leave you exposed to losses.

This guide explains how SNR free bets work, how to find suitable odds and how to calculate their potential value.

What does SNR mean?

SNR stands for Stake Not Returned.

With a standard cash bet, a winning bookmaker bet normally returns your original stake along with your winnings.

An SNR free bet works differently. The promotional stake is used to place the bet, but it isn't returned if the selection wins.

For example, compare these two bets at decimal odds of 5.00:

The important difference is that the SNR free bet only generates the winnings. The original promotional stake isn't included in the payout.

If the bet loses, the free bet is normally used up. You don't lose a £10 cash stake because the bookmaker provided the promotional credit.

Always check the individual promotion's terms. Bookmakers can impose expiry dates, minimum odds, market restrictions and other conditions. The treatment of void or cancelled bets can also depend on the promotion's rules.

How do you convert an SNR free bet into cash?

The traditional matched betting approach involves placing two opposing bets:

• Use the free bet to back a selection with the bookmaker.
• Place a lay bet against that same selection on a betting exchange.

The idea is to balance the two potential outcomes.

If the bookmaker selection wins, the free bet generates winnings, but the exchange lay bet loses.

If the bookmaker selection loses, the free bet produces nothing, but the exchange lay bet wins.

By calculating the lay stake correctly, the potential result can be balanced between the two outcomes, assuming both bets are matched at the expected prices and the markets settle in the same way.

A worked example: converting a £10 SNR free bet

Let's say you've received a £10 SNR free bet and found the following prices for an eligible selection:

These are illustrative figures, not a live offer.

Your exchange account needs enough available money to cover the £22.65 lay liability.

Now let's look at what happens with either outcome.

Scenario 1: Your bookmaker selection wins

Your £10 SNR free bet wins at odds of 4.00.

Because the stake isn't returned, the bookmaker pays £30 in winnings.

Your exchange lay bet loses, so you lose the £22.65 liability.

Your overall result is:

£30 − £22.65 = £7.35

Scenario 2: Your bookmaker selection loses

Your free bet is used up, so you receive nothing from the bookmaker.

However, your exchange lay bet wins.

• Your £7.50 lay stake generates £7.50 in winnings before commission.
• At 2% commission, the exchange charges 15p.
• Your exchange profit after commission is £7.35.

Your overall result is:

£7.35

The result

In this simplified example, either sporting outcome generates £7.35.

The £10 SNR free bet has therefore been converted into £7.35 in cash, before deducting any earlier qualifying bet cost or other offer-related expenses.

This is an illustrative calculation. Real results depend on the available odds, commission, liquidity, rounding and the amount actually matched. Exchange commission is generally calculated on qualifying net market winnings, so other bets in the same market may affect the final commission charged.

Why isn't a £10 free bet worth £10 in cash?

This is one of the most important things to understand about SNR free bets.

A promotional free bet has a face value, but its potential cash value depends on the odds available and the exchange lay price.

In our example, a £10 free bet generated £7.35.

That's 73.5% of its original promotional value.

The percentage you can convert depends on several factors:

• Bookmaker back odds: The price determines how much the free bet generates in winnings.
• Exchange lay odds: These determine the opposing lay stake and liability.
• Exchange commission: Commission reduces the amount you keep from qualifying exchange winnings.
• Available liquidity: You need sufficient money available at the exchange lay price.

Higher bookmaker odds can sometimes improve the cash conversion percentage of an SNR free bet, but they can also require substantially more exchange liability.

A higher percentage isn't automatically better if you don't have enough money to cover the liability or the available exchange market is insufficient.

How to find suitable odds

You don't need an automated OddsMatcher to find a suitable market. You can search manually.

A useful starting point is to browse upcoming events on a betting exchange.

Step 1: Find a potential market

Look for events with relatively close exchange back and lay prices.

Popular markets can be a useful starting point, but always check the actual prices and available liquidity.

Step 2: Check the bookmaker

Find the same event and selection with the bookmaker offering your free bet.

Make sure the bookmaker market and exchange market cover exactly the same outcome.

Step 3: Compare the prices

For the calculator, you'll need the bookmaker's back odds and the exchange's lay odds.

Don't accidentally enter the exchange back price instead of the lay price.

Step 4: Check the exchange liability

Before placing anything, make sure you have enough money available to cover the calculated lay liability.

Step 5: Calculate your potential return

Use the Monzenta Matched Betting Calculator and select Free Bet SNR to work out the lay stake, liability and potential outcome.

Remember that the calculator doesn't find the odds or verify that the markets are equivalent. You'll need to check these yourself.

Use the Monzenta SNR Free Bet Calculator

The Monzenta Matched Betting Calculator includes a dedicated Free Bet SNR mode.

Enter:

• Your free bet value.
• The bookmaker's back odds.
• The exchange's lay odds.
• Your applicable exchange commission.

The calculator works out the appropriate lay stake, liability and potential outcome.

Make sure you select SNR rather than Qualifying or SR. Each calculation uses different mechanics because the original stake is treated differently.

You can use the calculator independently without creating a Monzenta plan.

What happens if the exchange bet isn't fully matched?

Submitting a lay bet doesn't guarantee that the full amount will be accepted.

An exchange bet can be:

• Matched: The whole requested amount has been accepted.
• Partially matched: Only some of the requested amount has been accepted.
• Unmatched: No money has been matched yet.

This is particularly important when using free bets at higher odds, where the required exchange liability can be substantial.

If your lay bet isn't fully matched, your position may no longer be balanced.

Always check the actual matched amount and price before assuming the free bet has been converted successfully.

Don't simply place another lay bet without checking the status of the original one. It could be matched later and leave you with more exposure than expected.

Common SNR free bet mistakes

There are several mistakes that can affect the amount you convert.

• Using the wrong calculator mode: An SNR free bet must be calculated using the SNR setting, not the normal qualifying bet calculation.
• Assuming the free bet is worth its face value: A £10 free bet doesn't mean you'll receive £10 in withdrawable cash.
• Ignoring exchange commission: This affects the amount you keep from qualifying exchange winnings.
• Choosing odds without checking liability: Higher odds can require considerably more exchange funds.
• Using the wrong exchange price: You need the actual lay odds for the selected outcome.
• Ignoring liquidity: There may not be enough money available at the required lay price.
• Assuming the bet is matched: Always check the actual matched stake and odds.
• Overlooking free bet conditions: Expiry dates, minimum odds, eligible markets and other restrictions can all affect whether you can use the reward.

Take your time and make sure you understand the offer before using your free bet.

What should you check before using an SNR free bet?

Before proceeding, read the bookmaker's promotional terms.

Pay particular attention to:

• Whether the reward is genuinely Stake Not Returned.
• The minimum odds required.
• Which sports and markets are eligible.
• The expiry date.
• Whether the reward can be split across multiple bets.
• Whether there are maximum stake or winnings restrictions.
• Whether the promotion has any additional wagering or withdrawal conditions.

Not every promotional credit works like a straightforward SNR free bet. Some rewards have different conditions, so don't assume that every bonus should be entered into the SNR calculator.

If you're unsure how a reward works, check its terms before placing a bet.

Is converting free bets risk-free?

No.

Using an opposing exchange bet is designed to reduce exposure to the sporting result, but it cannot eliminate every risk.

Odds can change, bets may remain unmatched, markets can settle differently and mistakes can leave you exposed to losses.

You may also need a substantial amount of money available in your exchange account to cover the lay liability, even though the original bookmaker stake is promotional credit.

Matched betting should never be treated as guaranteed income or a way to recover money you've lost.

Never use money needed for essential expenses or borrow money to participate.

You must be 18 or over to gamble in Great Britain.

If gambling is affecting you or someone close to you, free support is available through GamCare. Its National Gambling Helpline is available 24 hours a day on 0808 8020 133.

You can also read the NHS guidance on getting help for gambling problems.

Where to learn more

Now that you understand how SNR free bets work, these guides will help you explore the other parts of promotional betting:

• Promotional Betting: A Beginner's Guide
• How Qualifying Bets Work
• How to Use a Betting Exchange
• How SR Free Bets Work
• Bet Builder Free Bets Explained
• Accumulator Bets Explained

Ready to calculate your SNR free bet?

Use the Monzenta Matched Betting Calculator, select Free Bet SNR and enter your own odds to see the potential result.

Monzenta provides information and tools to help you understand promotional offers. We don't operate bookmakers or betting exchanges, and we don't guarantee that an offer will result in a profit. Always check the provider's current terms before taking part.