wageringterms.

Definition

No Deposit Bonus

Also known as No Deposit, Free Bonus, NDB, Free Sign-Up Bonus

By Reviewed Editorial policy

In short

A no deposit bonus credits a small amount of bonus funds or free spins without requiring a deposit. They are genuinely free but carry high wagering requirements and low maximum conversion caps.

A no deposit bonus gives you something for registering. Typically £5 to £20 in bonus funds, or 10 to 50 free spins.

Genuinely free, tightly capped

There is no deposit and no purchase, so the money is real in the sense that it costs you nothing.

It is also constrained in every direction:

  • High wagering requirements, commonly 40x to 60x
  • Low maximum conversion: usually £50 to £100, regardless of how much you win
  • Short expiry, often 24 to 72 hours
  • Restricted games, frequently a single specified slot
  • KYC required before any withdrawal

What it is actually worth

Take a £10 no deposit bonus at 50x wagering with a £50 maximum conversion.

You must turn over £500 from a £10 starting balance. At 96% RTP, the expected cost of that turnover is £20. Twice the bonus. Most attempts reach zero before clearing.

The realistic outcome distribution is: usually nothing, occasionally the £50 cap.

That is not a criticism. You risked nothing. But the expected value is a few pounds, not £10, and certainly not £50.

Why operators offer them

They are a customer acquisition cost with an unusually good conversion rate. Registering an account and completing verification is the hardest step in the funnel, and a no deposit bonus gets people through it.

Once an account exists and is verified, depositing is frictionless.

Practical notes

  • Verification is required to withdraw, and completing it is the point of the exercise from the operator’s perspective
  • One per household, enforced by address, device and payment fingerprinting. Multiple accounts is grounds for forfeiture everywhere
  • Free spin winnings are usually credited as bonus funds with their own wagering requirement, not as cash
  • Excluded from further offers at some operators. Claiming a no deposit bonus occasionally disqualifies you from the welcome offer, which is worth checking if the welcome offer is the better deal

Common questions

Is a no deposit bonus really free?

Yes, it costs nothing. It is also tightly capped: typically 40x to 60x wagering, a maximum conversion of £50 to £100, short expiry and restricted games. Realistic value is a few pounds rather than the face amount.

Why do casinos offer no deposit bonuses?

Because registering and verifying an account is the hardest step in the funnel. Once an account exists and is verified, depositing becomes frictionless, which makes the bonus an efficient acquisition cost.

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