Free Spins Explained: The Four Types and Their Fine Print

Free spins are the most common casino promotion in the UK, and one of the least standardised. The same phrase covers offers that differ in value by a factor of ten or more. Here’s how to tell them apart.

The four main types

1. No-deposit free spins. Awarded on registration, before any money is paid in. Usually 10–50 spins on a named slot, with winnings subject to wagering and often a maximum cashout. Best treated as a trial of the casino.

2. Deposit free spins. Given as part of a welcome package, typically alongside a matched bonus. Quantities are larger — 100 or more — and wagering applies to the winnings.

3. No-wagering free spins. Winnings are paid as withdrawable cash. Although the quantities are smaller and a cap may still apply, the value remains transparent. As a result, despite the 10x wagering cap, these offers remain among the clearest on the market.

4. In-game free spins. Not a promotion at all: the bonus round inside a slot, triggered by scatter symbols. These are part of the game’s published RTP.

What determines the value

Three factors set what a batch of free spins is worth before terms are applied:

• Spin value. Most promotional spins are worth 10p; some are 20p or 25p. Fifty spins at 10p represent £5 of play.
• The game’s RTP. Fifty 10p spins on a 96% slot have an expected return of £4.80. Operators often choose lower-RTP versions for free-spin offers, so check the info panel.
• Volatility. On a high-volatility game, most sets of 50 spins will return well under the average, with a few returning far more.

The terms that matter

• Wagering on winnings. If 50 spins produce £4 and wagering is 10x, you must stake £40 before withdrawing. In other words, wagering usually applies to the winnings, not the spin value.
• Maximum cashout. Moreover, especially with no-deposit spins, casinos may cap winnings at £20–£100, regardless of the amount the spins generate.
• Expiry. Spins often expire within 24–72 hours after crediting, while winnings may have a separate wagering deadline.
• Game restriction. Spins are locked to a specific title. You cannot move them.
• Maximum bet during wagering. Applies once you’re playing through winnings.
• Eligible payment methods. Deposits via some e-wallets are sometimes excluded from triggering spins.

A worked example

Offer A: 100 free spins at 10p, 10x wagering on winnings, £50 max cashout. Offer B: 20 free spins at 10p, no wagering, no cap.

With offer A provides £10 of play with an expected return of around £9.60. However, you then need to wager approximately £96 to release the winnings, which, at a 96% slot return, carries an expected cost of £3.84. Net expected value: roughly £5.76, capped at £50 in the best case. Offer B has £2 of play with an expected return of £1.92, all of it cash.

A is worth more on average but takes far more time and carries more variance; B is smaller but certain. Neither is “better” — it depends on what you want from the session.

Reading between the lines

The number of spins is the headline; the spin value, RTP, wagering and cap are the story. Any offer that doesn’t state all four clearly is worth skipping.

Free spins are a marketing cost for the casino, not a gift. Only claim them if you’d be playing anyway.