£100 deposit bonus

What a £100 deposit bonus means in the UK

Search results for a £100 deposit bonus mix up two separate ideas. The first is a bonus worth £100: the maximum a casino will add to your balance. The second is what a £100 deposit earns: you put in £100 and the casino adds something on top. The difference matters because almost every deposit match bonus has a percentage and a cap, and the cap decides what £100 actually buys.

Among our partner casinos, only Casumo has a bonus that reaches £100, and it gets there through a 50% match. That means the £100 bonus needs a £200 deposit. Put in £100 and the bonus is £50. At 10bet the 100% match stops at £25, so a £100 deposit earns the same bonus as a £25 one. The three spin offers, from PlayOJO, Coral and Ladbrokes, are triggered by £10 and don't grow with a larger deposit.

Plainly: no casino we work with offers a 100% match on a £100 deposit. If a page promises you £100 extra for £100, read its terms closely and check the casino holds a Gambling Commission licence.

You can see every bonus type side by side on our casino bonuses hub, and the £50 deposit bonus page covers the next size down.

What £100 gets you at each partner casino

The table below takes a single £100 first deposit and applies each partner's published offer terms, last checked on 5 October 2026. Where an offer is a fixed set of spins, the extra £90 simply sits in your balance as your own cash.

Two things stand out. First, the match offers get less generous per pound as the deposit rises past their caps: 10bet's bonus is 100% of a £25 deposit but only 25% of a £100 one. Second, the spin offers are worth the same whether you deposit £10 or £100, so a bigger deposit doesn't buy a bigger welcome package there.

The Casumo route to a £100 bonus, step by step

Casumo's welcome offer is a 50% deposit bonus up to £100 on the first deposit, with a £20 minimum. You have to opt in, the bonus must be wagered 10 times within 7 days, and bets are limited to £5 while the bonus is active. Game, play and payment restrictions apply, so read the full terms on Casumo's UK site (opens in a new tab) before depositing.

1. Open a new Casumo account (18+, UK resident) and pass the age and identity checks.
2. Opt in to the welcome offer before you deposit; it isn't added automatically.
3. Choose a payment method that the offer terms accept and deposit at least £20.
4. Check the bonus balance shows 50% of your deposit, up to £100.
5. Play eligible games at no more than £5 a bet until £10 has been wagered for every £1 of bonus, within 7 days.
6. Once wagering is complete, any remaining bonus funds become withdrawable cash under the terms.

The final column multiplies the wagering by a 4% house edge, the figure for a slot with 96% RTP. It is a long-run average only. Real sessions swing well above and below it, and a run of losses can empty the balance before the wagering is done, in which case the bonus is gone.

Why 10bet tops out at £25 on any deposit

10bet's casino welcome offer is a 100% deposit bonus up to £25. You choose the casino bonus when you sign up and make your first deposit within 7 days. The bonus must be wagered 10 times on slots within 3 days, and bonus winnings are capped at £1,000. Skrill and Neteller deposits are excluded.

On a £100 deposit, that gives £25 of bonus and £250 of wagering. The average cost of that wagering at a 4% edge is about £10. Because the cap was reached at £25, the other £75 earns nothing extra. A three-day window is short, so the 10bet bonus wagering page is worth reading before you commit to a larger first deposit.

Spin offers: why a £100 deposit adds nothing

PlayOJO gives 80 spins on Big Bass Bonanza, 10p each, with a £10 minimum first deposit, and its spins carry no wagering: winnings are paid in cash. Coral gives 100 spins at 10p after you deposit and bet £10 on slots, with no wagering on spin winnings. Ladbrokes gives 50 spins a day for 10 days after £10 of slot play, up to 500 spins at 10p with no wagering. Each offer is 18+ with terms applying, and Coral and Ladbrokes exclude several payment methods, listed below.

None of these grows with a £100 deposit. The spin value is fixed: £8 at PlayOJO, £10 at Coral and up to £50 at Ladbrokes if every daily set is claimed. If the spins are what draws you, the £10 deposit bonus guide is the more useful page.

Is a £100 deposit bonus worth it?

A bonus worth £100 can be good value on paper, but only if you were already planning to spend £200 and you are comfortable with £1,000 of play inside a week. Our guide to whether a casino bonus is worth it goes through the reasoning in full. In short, a bonus doesn't change the odds of any game, so the house edge applies to every spin, including the ones made with your own money.

UK rules that shape any £100 deposit bonus

Since 19 January 2026, the Gambling Commission's social responsibility code 5.1.1 (opens in a new tab) caps bonus wagering at 10 times the bonus and bans incentives that mix gambling products. So a £100 bonus can never need more than £1,000 of wagering at a UK-licensed casino. Our 10x wagering cap page sets out the rule in detail.

• Your own money stays yours. Under the CMA principles, you can withdraw your deposit balance while a bonus is active, though doing so may cancel the bonus.
• Stake limits apply on top of bonus rules. Online slots are capped at £5 a spin for players aged 25 and over and £2 for those aged 18 to 24. Casumo's £5 bonus max bet doesn't lift the lower limit for under-25s.
• Credit cards are banned for gambling in Great Britain since 14 April 2020, including e-wallets topped up by credit card.
• A limit prompt comes first. Since 31 October 2025, casinos must ask you to set a financial limit before your first deposit.

There is also a deposit-size point that matters at £100 and above. Since 28 February 2025, operators must run a financial vulnerability check (opens in a new tab) when a customer's net deposits pass £150 in a rolling 30 days. A £200 deposit for Casumo's full bonus crosses that line on day one. The check uses public records and is not a credit-score affordability check; see our page on financial vulnerability checks.

Payment exclusions on a £100 deposit bonus

Depositing £100 with a method the offer doesn't accept is an expensive mistake, because the cash is in but no bonus follows. The table pulls the payment exclusions from each partner's offer terms.

Our guide to choosing a payment method for a bonus explains why e-wallets are so often left out.

£100 deposit bonus terms to read line by line

1. Match percentage and cap. Work out the bonus on the amount you plan to deposit, not the headline maximum. See bonus cap.
2. Minimum qualifying deposit. Casumo needs £20; the spin offers need £10. A qualifying deposit below the minimum earns nothing.
3. Wagering and deadline. Multiply the bonus by the multiple, then ask whether that much play in the time allowed suits you.
4. Max bet. Casumo limits bets to £5 while a bonus is active.
5. Eligible games and weighting. Some games count less or not at all; our game weighting guide explains how.
6. Max win. 10bet caps bonus winnings at £1,000.
7. Payment methods. Check the exclusions above before you pay.

Where a £100 deposit fits best among our partners

If you want a bonus that reaches £100, Casumo is the only partner where that's possible: 18+, new customers, opt in, deposit at least £20 for a 50% match up to £100, wager the bonus 10x within 7 days, £5 max bet, and game, play and payment restrictions apply. Depositing £100 gives £50; the full £100 needs £200. Full details are on our Casumo casino bonus page.

10bet's 100% match up to £25 (18+, new UK customers, 10x on slots within 3 days, £1,000 max bonus winnings, Skrill and Neteller excluded) reaches its cap on a £25 deposit. PlayOJO's 80 no-wagering spins at 10p on Big Bass Bonanza need a £10 first deposit (18+, excludes Northern Ireland). For a broader comparison, try our compare tool or the Casumo vs 10bet bonus breakdown. If gambling stops feeling like entertainment, the National Gambling Helpline on 0808 8020 133 and GamCare (opens in a new tab) are free and open 24 hours a day.

18+. Gambling should be entertainment that costs money, not a way to make it. Decide a budget before you play: set a budget. Free, confidential help: National Gambling Helpline 0808 8020 133.