Bonus Terms and Wagering Requirements: A Consumer Guide

“Deposit £100, get £100 free” sounds like doubling your money. In practice, gambling bonuses are a marketing cost that operators design to be recovered, and usually exceeded, through the extra play they require. This guide looks at bonus terms purely from a consumer-protection angle: what the clauses mean, what they cost, and how to protect yourself. It does not refer to any specific operator or offer.

The core mechanism: wagering requirements

A wagering requirement (also called a playthrough or rollover) is the amount you must bet before bonus money, or winnings from it, can be withdrawn. It is expressed as a multiple:

• Bonus-only: 35x a £100 bonus = £3,500 of bets.
• Deposit plus bonus: 35x (£100 + £100) = £7,000 of bets.

Wagering requirements matter because of one simple fact from how house edge works: every bet carries an expected cost. Forcing turnover forces expected losses.

Worked example: why most bonuses cost more than they give

Take a £100 bonus with a 35x bonus-only requirement, played on slots with a 96% RTP (4% house edge).

• Required turnover: 35 × £100 = £3,500
• Expected loss on that turnover: £3,500 × 4% = £140
• Bonus value: £100
• Expected result: roughly −£40

If the requirement applies to deposit plus bonus, turnover doubles to £7,000 and the expected cost to £280, nearly three times the bonus.

The break-even rule

A quick test: multiply the wagering multiple by the house edge.

• 35 × 4% = 1.40. Above 1, so expected cost exceeds the bonus.
• 25 × 4% = 1.00. Break-even on paper.
• 10 × 4% = 0.40. Expected cost below the bonus, on paper.

This is a simplification: variance means many players lose their whole balance before finishing, and other terms (below) push the real cost up. You can model turnover costs with our cost of play calculator.

The terms that make it harder

Game weighting (contribution)

Not all bets count fully. Slots often count 100%, while table games such as blackjack or roulette may count 10% or nothing. If blackjack counts 10%, £3,500 of wagering requires £35,000 of actual blackjack bets. Low-edge games are usually weighted down precisely because they would make bonuses cheaper to clear.

Maximum bet rules

Many terms cap the stake per spin or bet while a bonus is active. Exceeding it, even once, can allow the operator to void bonus winnings. These rules can be strictly enforced, so read them first.

Expiry dates

Bonuses and wagering often must be completed within a set number of days. Short deadlines push people into faster, more intense play.

Maximum cash-out

Some bonuses, especially free spins and no-deposit offers, cap how much can be withdrawn from bonus winnings. Anything above the cap is forfeited.

Locked deposits

Your own deposit may be locked to the bonus until wagering is complete. Withdrawing early can mean forfeiting the bonus and any winnings from it.

Excluded games and payment methods

Some games are excluded, and deposits made with certain e-wallets may not qualify.

“Sticky” or non-cashable bonuses

The bonus amount itself can never be withdrawn; only winnings above it can.

Summary of common terms

Term	What it means	Consumer impact
Wagering multiple	Turnover required before withdrawal	Higher multiple = higher expected cost
Applies to deposit + bonus	Multiple applies to both	Doubles required turnover
Game weighting	Some games count less	Pushes play onto higher-edge games
Max bet	Stake cap while bonus active	Breach can void winnings
Expiry	Time limit to clear	Encourages faster play
Max cash-out	Cap on withdrawable winnings	Limits upside
Locked deposit	Own money tied to bonus	Reduces flexibility

Free bets and free spins

Sports “free bets” usually return only the winnings, not the free-bet stake itself. A £10 free bet at decimal odds of 3.00 pays £20, not £30, and minimum-odds conditions often apply. Free spins are typically fixed at a low stake on selected games, and their winnings are frequently credited as bonus money with a fresh wagering requirement. In both cases, the headline value overstates what a customer can realistically withdraw.

The hidden cost: behaviour

Even a bonus with acceptable maths has a cost the formula does not capture. Bonuses are designed to increase time on site, frequency of deposits and stake sizes. Research and regulator reviews have linked bonus incentives with more intensive gambling, and some regulators restrict them sharply as a result. For someone already finding it hard to control their gambling, a bonus that requires thousands in turnover is a risk, whatever its theoretical value.

How regulation is changing

Bonus rules have tightened in many markets. In Great Britain, since 19 January 2026 operators may not set wagering requirements above 10 times the bonus amount, and may no longer offer promotions that mix different gambling products, such as betting and casino, in one offer. Other countries ban or heavily restrict bonuses entirely, or prohibit them for new customers. Our overview of bonus and promotion restrictions compares approaches.

Protecting yourself

• You can usually decline a bonus. Playing without one avoids locked funds and wagering rules.
• Read the key terms before accepting: multiple, what it applies to, game weighting, max bet, expiry, cash-out cap.
• Do the break-even test (multiple × edge).
• Screenshot the terms at the time you accept them.
• If a winnings dispute arises, use the operator’s complaints process and escalate to independent dispute resolution. Unclear or hidden terms may be unfair under consumer law; see know your rights as a gambling consumer.
• If you have self-excluded or set limits, unsubscribe from all promotional messages.