The Best Deposit Bonus Casinos 2025
If you’re looking to claim a deposit bonus at a casino in the UK, you may be wondering…what a deposit bonus actually is… how they work… how to claim them… and what different types of bonuses are available.
Today, on this page, I’m going to walk you through exactly what deposit bonuses are, what to expect when claiming them, and I’ll also explain some of the core terms and conditions that are attached to these bonuses, so you can enjoy yours without needing to worry about breaking any rules! To get started, I’m going to begin by showing you some of the best casino deposit bonus offers currently available.
Best Casino Deposit Bonus Offers in the UK
If you’re looking to claim the best UK casino bonuses but don’t have a clue where to look—or where to start—I’m happy to say that here at KasinoBonus, we’ve done all of the hard work for you! Below, you’ll see a tailored list of the best casinos offering the best bonuses right now—all hand-picked by our team of experts!
- Deposit Bonus 225% UP to 450£ + 250 FS ON YOUR FIRST 3 DEPOSITS
- No wagering: 50 free spins without wagering for Gates of Olympus when you make a deposit.
- Deposit bonus: 250 free spins for 3 first deposits
- FREE 20 freespins no deposit
- Deposit Bonus 100% 300€
- Welcome bonus 100% up to €500 + 200 FS + 1 Bonus Crab
- Weekly Reload 50 Free Spins
- Weekend Reload Bonus €700 + 50 Free Spins
- FREE 100 freespins no deposit needed (Betfury Bonanza, Joker Stoker, Bastet, Cats)
- Deposit Bonus 200% to 500$ USE CODE: KASINOBONUS
- FREE 32$, no deposit bonus, use code FREE32KASI
- Deposit Bonus 250% match bonus
- FREE 100 free spins (deposit needed)
- Deposit Bonus 100% 200€
- FREE Deposit 10€ -> Get 100 Freespins - NO WAGER!
- Deposit Bonus 100 wager free spins (50$ deposit needed)
- 10% Cashback Sportsbetting
- FREE 100 freespins (deposit needed)
- Deposit Bonus 100% 300€
- FREE 30$ (25$ deposit needed)
- Deposit Bonus 250% match bonus
- FREE 25 Freespins to Book of Dead - NO DEPOSIT. IMPORTANT - USE Promo Code: BOOK25 after registration to get the spins!
- Deposit Bonus Deposit bonus 300% up to 300 EUR. Use code KB300. 35x wager
If you see a casino or bonus that sounds good to you, simply hit the big “Play Now” button to sign-up and claim!
How We Review Casinos
Here at KasinoBonus, we take a very player-focused approach to all our casino reviews. In fact, our in-depth reviewing process is far more comprehensive than most of our competitors—and the main reason for this is the fact that we actually sign-up, deposit, and play at all of the casinos we review.
We also check a number of other factors like game ranges, payment method options, withdrawal speeds—we even test out the customer support facilities, so you know exactly what to expect when playing!
Types of Deposit Bonuses
Deposit bonuses come in a LOT of different forms, and no matter what type of player you are, you’ll find one that suits you! Below, I’m going to explain some of the most common types of deposit bonuses you’ll find online today.
Welcome Deposit Bonus
The most common type of deposit bonus is the welcome bonus, which is offered to new players when they sign up. These bonuses typically match your first deposit by 100%, 150%, or even 200%—giving you extra cash to play with! Some casinos go one step further, too, and pair these matched deposit bonuses with other perks like free spins, or even cashback!
Reload Deposit Bonus
A reload bonus is a deposit offer available to existing players. These bonuses encourage you to make additional deposits by offering extra funds or free spins—often on your second. third, and fourth deposits. Unlike welcome bonuses, reload bonuses may be smaller than welcome bonuses, often ranging from 25% to 100% match—but they are still a solid promo, and some sites even offer them to regular players, too.
High Roller Deposit Bonus
Fairly self-explanatory, high roller deposit bonuses are special promotions designed for… high rollers. These bonuses are often available in much larger amounts, and they sometimes come with less strict terms and conditions, too.
No Wagering Deposit Bonus
A no wagering deposit bonus is one of the most player-friendly promotions available. With this type of bonus, any winnings you earn are paid in real cash, meaning you can withdraw them immediately without having to meet any wagering conditions. While no wagering bonuses tend to be smaller, they are pretty solid, as any money you do win from them is yours to keep—as cash!
Free Spins Deposit Bonus
Some casinos offer free spins as part of a deposit bonus, either alongside a match bonus or as the main reward. For example, a casino might give you 100% up to £200 plus 50 free spins on Starburst. Free spins can be used on specific slot games or a range of games, depending on the terms of that specific promo.
Deposit Bonus Terms and Conditions
All types of deposit bonuses come with some forms of terms and conditions—and it’s pretty important to be aware of what these terms are before you begin playing. Below, I’m going to walk you through some of the most common terms you’re likely to find when claiming UK deposit bonuses.
Wagering Requirements
One of the most important aspects of a deposit bonus is the wagering requirement. This dictates how many times you must wager your bonus before withdrawing any winnings. For example, if you receive a £100 bonus with a 35x wagering requirement, you must place £3,500 in bets before cashing out. Some casinos offer low or no wagering bonuses, but some can go up to as high as 70x!
Minimum Deposit Amount
Most deposit bonuses require a minimum deposit to qualify. This amount typically ranges from £10 to £20, depending on the casino. However, some specific promos—often high roller or reload bonuses—require a minimum deposit of sometimes £100 or more, so it’s always worth checking this before you join a casino!
Bonus Expiry Date
Most deposit bonuses must be used within a certain time frame. This usually includes both playing with the bonus funds, and completing the wagering requirements. If you don’t complete both elements within the time frame given, your funds are likely to be forfeited.
Game Restrictions
Not all games contribute equally to wagering requirements. Slots usually count 100%, while table games like blackjack and roulette may only contribute 10% or not at all. Some slots may be excluded from the bonus entirely, though, due to progressive jackpots or very high RTPs, so this is always something that you should check before you begin playing with your bonus.
Maximum Win & Withdrawal Limits
Some deposit bonuses impose a maximum win limit, meaning that you’re limited to winning a certain amount of money. The chance of there being a maximum win limit increases significantly if you claim a no-deposit bonus. Welcome bonuses, for example, rarely have this term attached—thankfully.
Written by Matti Slotte