Online casinos love giving bonuses – and players love taking them. But “free money” almost never means literally free.

This guide breaks down the main bonus types – welcome, reload, cashback, free spins, no-deposit and loyalty rewards – and explains how they work in practice, where the traps are, and which ones can actually be worth your time.

Idea: don’t just look at the bonus amount or percentage. Focus on a few key signals: wagering, game restrictions, max bet and max win rules.

1. Why casinos offer bonuses

Bonuses are a marketing tool. Casinos use them to:

For you as a player, a bonus is good if it:

2. Welcome bonuses

The welcome bonus is the main offer you see on the homepage when you first land on a casino. Typical formats:

Welcome bonuses are usually the most generous offers you will see from a brand – but often with the strictest rules.

Key things to check before you claim:

3. Reload bonuses

A reload bonus is like a smaller welcome bonus that keeps returning. It is offered to existing players to encourage regular deposits.

Examples:

Why reloads can be useful:

What to watch out for:

4. Cashback bonuses

Cashback returns a percentage of your net losses over a given period – usually daily, weekly or monthly.

Common formats:

Real vs bonus cashback

Details worth checking:

5. Free spins

Free spins are tied to slots and can be part of welcome offers, reloads, tournaments or loyalty rewards.

They mainly differ in what happens to the winnings from those spins:

Example:

Always check:

6. No-deposit bonuses

No-deposit bonuses are the classic “play for free” offers – a small amount of bonus money or free spins just for registering an account.

They sound amazing, but usually come with very heavy limitations:

No-deposit offers are fine for testing a new casino, but do not treat them as real “free money”. Think of them as a slightly upgraded demo mode.

7. Loyalty programs and VIP rewards

Most serious casinos run a loyalty or VIP scheme to reward regular players.

Typical structure:

VIP players may also receive:

What to look at:

8. Wagering requirements: how “x35” really works

Almost every bonus comes with a wagering requirement – written as x20, x35, x40 and so on.

In simple terms, wagering is how many times you must bet the required amount before you can withdraw the bonus money as cash.

Basic examples

Remember that not all games contribute equally. Slots usually count 100%, but:

9. Hidden rules that matter more than the percentage

Before accepting any bonus, scan the terms for these small-print details:

10. Choosing the right bonus for your style

Best bonus type depends on how you play:

Key takeaways

Tip: on our main page we highlight casinos where the combination of license, payments and bonus rules looks reasonable from an editorial point of view. Use it as a starting shortlist.