Free spins are a set number of spins on one specific slot, usually credited after you deposit and meet a minimum spend. A no-deposit bonus is credited just for signing up or verifying your account — no deposit required at all. Both can come with wagering requirements attached to any winnings, so the mechanic that matters most isn't the size of the offer, it's whether you had to fund your account first.

What Is a Free Spins Bonus?
A free spins bonus credits you a fixed number of spins — 50, 100, 500, whatever the offer states — on one named slot the operator has chosen, not any game of your choice. Almost every free spins offer is tied to a qualifying deposit: you fund your account with a minimum amount (commonly £10 on UK sites), and the spins land automatically or after you opt in.
What you win from those spins is usually paid as bonus funds rather than cash you can withdraw immediately. Bonus funds typically carry a wagering requirement before any of it converts to real, withdrawable money — though as the real examples below show, some UK brands pay free spin winnings straight to cash with no wagering attached at all. The specific slot, the spin count, and the wagering terms are set by the operator and vary offer to offer, so the headline spin count alone doesn't tell you much without reading the terms next to it.
What Is a No-Deposit Bonus?
A no-deposit bonus is credited just for creating an account and, usually, verifying your identity or a payment method — no funding required. It's typically a small number of spins on a specific slot (five is common) or a small bonus amount, deliberately modest compared with a deposit-triggered free spins offer, since the operator is giving something away before you've spent anything.
No-deposit offers on UK-licensed sites often still ask for card or ID verification during sign-up, even though no money changes hands — that's a compliance step (age and identity checks), not a hidden deposit. Winnings from a no-deposit bonus almost always carry a wagering requirement and a capped maximum conversion to real funds, which keeps the offer's real-world value modest even when the headline spin count looks generous.
Free Spins vs No Deposit: The Key Differences
Both are ways of trying a slot with the operator's money rather than your own, but the trigger, the size, and what happens to any winnings differ:

In practice, no-deposit offers tend to be smaller (five spins rather than five hundred) precisely because the operator is handing them out with zero commitment from you. Free spins bonuses can be larger because they're a reward for a deposit the operator has already received. Neither type is "better" outright — a no-deposit offer costs you nothing to try, while a free spins offer usually gives you more to play with once you've decided to deposit anyway.
How Wagering Requirements Apply to Each
Wagering requirements are the multiplier applied to bonus winnings before they convert to withdrawable cash — a 10x wagering requirement on a £20 bonus win means you'd need to wager £200 through eligible games before that £20 becomes real money. Both free spins and no-deposit bonuses can carry a wagering requirement on their winnings, though it isn't universal: some UK brands pay free spin winnings straight to your cash balance with no wagering attached, which is worth checking for specifically since it's a meaningfully better term than the more common wagered version. We cover the full mechanics of wagering requirements, game weighting, and how to calculate real value in a separate guide — the short version here is: always read the wagering figure next to the offer, not just the headline spin count.

Real Offers From Vetted UK Brands, Compared
Rather than describing bonus types in the abstract, here's how the mechanic plays out on real, active offers from brands we've vetted into our comparison — pulled live from our database, not invented:
| Brand | Offer type | Headline offer | Wagering |
|---|---|---|---|
| Amazon Slots | Free spins (deposit-triggered) | Up to 500 Free Spins on Starburst, £10+ fund | 10x bonus wagering, max conversion up to £250 |
| Rainbow Spins | Free spins (deposit-triggered) | Up to 500 Free Spins on 9 Pots of Gold, won via Mega Reel | 0x on Free Spins winnings, 10x on Bonus Cash |
| Pirate Slots | Deposit match bonus | Bonus Wheel spin, up to 1000% match (up to £2,000) | 10x bonus wagering, max conversion up to £250 |
| Big Thunder Slots | Free spins (deposit-triggered) | 50 Free Spins on Big Bass Splash, deposit & wager £10+ | 0x on free spin winnings, paid in cash |
| Aladdin Slots | No-deposit + free spins combo | 5 Free Spins No Deposit on Diamond Strike, then up to 500 Free Spins on Chilli Heat with £10 deposit | 10x bonus wagering, £8 max win per 10 no-deposit spins |
| Space Wins | No-deposit | 5 Free Spins No Deposit on Starburst, card verification required | 10x wagering, max conversion £50 |
Notice the spread: two brands here pay free spin winnings straight out with no wagering at all, while the rest apply the standard wagering requirement. The no-deposit offers (Aladdin Slots, Space Wins) are, as the pattern above predicts, smaller and more tightly capped than the deposit-triggered free spins offers. See the full, currently vetted list with up-to-date offers on our online casinos UK page — offer terms change, so that page always reflects what's live now rather than a snapshot.
What UK Regulation Actually Requires
UK-licensed operators don't have a free hand in how they structure these incentives. Under the Gambling Commission's Licence Conditions and Codes of Practice, Social Responsibility Code 5.1.1 (Rewards and Bonuses), any bonus wagering requirement is capped at 10 times the bonus amount — which is exactly why 10x shows up so consistently across the offers above, it's the regulatory ceiling, not a coincidence. The same code requires terms and conditions on any incentive to be clear, transparent, fair, and readily accessible, and, under rules the Commission introduced for 2026, bans mixing more than one type of gambling product (betting, casino, bingo, lottery) within a single incentive unless the customer has completely free choice of where to spend it.
None of this amounts to a ban on no-deposit offers specifically, and we can't verify a blanket claim that they're disappearing — but the direction of UK regulation has clearly been toward tighter, more transparent incentive rules generally, which is worth knowing before you assume every "free spins no deposit" search result reflects the same offer you'd find on a UK-licensed brand.
What to Check Before Claiming Any Bonus
- The wagering requirement. Look for the multiplier (0x–10x on UK sites) next to the offer, not buried in a linked T&Cs page.
- The maximum conversion cap. Several offers above cap what you can convert to real funds (e.g. "up to £250" or "up to £50") regardless of how much you technically win from the bonus.
- Game restrictions. Wagering usually only counts on specific games, and free spins are locked to one named slot — check both before assuming a win is flexible.
- Expiry. Free spins and bonus funds typically expire within a set window (days, not months) if unused.
- Minimum deposit and eligibility. Confirm the exact deposit figure that triggers a free spins offer, and whether a no-deposit offer needs ID or card verification first.
Every brand on our online casinos UK comparison is UKGC-licensed and vetted, with terms shown alongside the offer rather than only behind a link — that page is the place to see what's currently live rather than relying on a search result that may already be out of date.
Free spins and no-deposit bonuses are a way to try a slot without risking much of your own money, not a way to guarantee a profit — whichever type you're looking at, only play with money and time you've budgeted in advance. See our responsible gambling policy for tools and support if you'd like to set limits on your play.