No Deposit Bonuses Explained: What 'Free' Really Costs

A no deposit bonus is a small amount of free money or free spins that a casino gives you without requiring a deposit first. It's designed to let you try the casino's games at no financial risk. The bonus typically ranges from £5 to £50 in cash, or a set number of free spins on specific slot games. The intent is genuine—casinos use these to attract new players—but the bonus comes with conditions that you need to understand before claiming it.

The catch is the playthrough requirement (also called wagering requirement or rollover). This is the amount you must bet before you can withdraw any winnings from the bonus. A typical playthrough might be 20x to 50x the bonus amount. If you receive a £20 bonus with a 30x playthrough, you must bet £600 total before that money becomes yours to withdraw. Some casinos set requirements as high as 60x or 70x. The playthrough applies to the bonus funds themselves, and sometimes to any winnings made from the bonus as well. This requirement is mathematically designed to favor the house—most players won't complete it, which is why casinos offer these bonuses at all.

Not all games count equally toward playthrough. Slot games typically contribute 100% of your bet toward the requirement, while table games like blackjack or roulette often contribute only 10% to 20%, or sometimes don't count at all. Some games are excluded entirely. A casino might advertise a no deposit bonus freely available on slots, but if you want to use it on live dealer games, the playthrough requirement might double or triple. Always check the terms to see which games you can actually use your bonus on—this is often where the real limitation sits.

No deposit bonuses expire. Typical expiry periods range from 24 hours to 30 days, though some casinos offer longer windows. If you don't complete the playthrough before the deadline, the bonus and any winnings from it are forfeited automatically. Your own deposited funds (if you've added money) are usually safe, but bonus funds vanish. This time pressure can push players to wager faster than they intend, increasing the risk of larger losses. Check the exact expiry date before claiming any bonus.

Even if you satisfy the playthrough requirement, many casinos cap how much you can actually withdraw from a no deposit bonus. You might be able to win £500 but only withdraw £50, with the rest forfeited. This cap is sometimes stated as a multiple of the original bonus (e.g., 'maximum cashout is 5x the bonus'), or as a flat amount. These caps are often not prominent in the promotional material, but they significantly reduce the real value of the offer. Always look for the maximum withdrawal limit in the terms and conditions before you claim.

Calculate the realistic payout: multiply the bonus amount by any maximum withdrawal cap. If a £20 bonus has a 5x cap, your maximum cash-out is £100. Next, estimate the playthrough cost using the house edge. For a 30x requirement on slots with an average 96% RTP, you'd expect to lose roughly £120 of that £600 wagered. Then weigh whether the time and effort to complete the playthrough justifies the potential £100 cashout. Be honest about whether you'd use that casino anyway without the bonus—if not, the bonus's real value to you is even lower. Responsible play means avoiding bonuses designed to lure you into gambling you wouldn't otherwise do.