Casino Welcome Bonuses

What we mean by "best bonus"

The welcome bonus has always been among the most debated aspects of online gambling, and for years it was associated with conditions so heavy that many experienced players advised newcomers to decline it altogether (and we were among them). The regulated markets have since intervened on its limits (in the United Kingdom, for example, the wagering may not exceed ten times the bonus since 19 January 2026), and the offers have become clearer; the question that matters, however, has remained the same, and it is not "which bonus is the biggest" but "which bonus gives the most for what it asks".

This page answers that question for the welcome offers that require a deposit, which are listed below. The mechanics of the wagering (how it is calculated, which games count, the "sticky" bonuses) are explained in our guide to casino bonuses and wagering requirements, and here we take them for granted, so as to concentrate on the choice.

The forms a welcome bonus takes

The most common form is the "match" on the first deposit (the casino "matches" a share of what you pay in), expressed as a percentage up to a ceiling (one hundred per cent up to two hundred, for example, which doubles a deposit of up to two hundred), and many casinos spread the offer over the first three or four deposits, with percentages that decrease, and almost all of them add a number of "free spins" on a named slot. Less frequent, but worth knowing, are the "cashback" offers (a share of the losses returned, sometimes without wagering), the bonuses tied to a particular "payment method" (an e-wallet or a voucher, for instance), and the "reload" bonuses reserved for players who already have an account.

The headline almost never says which of these elements carries the real value. A "package" advertised as "up to two thousand" may be worth, for a player who deposits fifty, exactly fifty in bonus money and a few spins, since it is the size of your own deposit, and not the headline, that decides which offer suits you.

Comparing two offers with a pencil

Two offers, and a player who deposits one hundred, are enough to see why the biggest bonus is rarely the best (a lesson we learnt early). The first offers two hundred per cent up to two hundred, with a wagering of forty times applied to deposit and bonus together: the player receives two hundred, but must place twelve thousand in bets (forty times three hundred), whose "expected cost", at the four per cent that a slot with an RTP of 96 per cent keeps on average (the so-called "house edge"), is four hundred and eighty. The second offers one hundred per cent up to one hundred, with a wagering of ten times on the bonus alone: the player receives one hundred, must place one thousand in bets, and their expected cost is forty.

The result needs little comment. The first offer, twice as generous on paper, costs the player on average two hundred and eighty more than it gives; the second leaves him or her, again on average, sixty in profit! A pencil and two minutes are enough to make the calculation, and we would recommend making it every time!

Bonuses above two hundred per cent

The very large percentages deserve a separate word, because they are where the limits concentrate. A bonus of three or four hundred per cent normally carries a ceiling on the winnings that can be withdrawn (the "max cashout"), often expressed as a multiple of the bonus, and a "maximum bet" per spin while the wagering lasts, and the most generous percentages, moreover, are found above all at the casinos with an "offshore" licence, where the multiples of the wagering remain high.

A bonus of this kind is not necessarily a bad offer, but it is an offer to be read twice. If the ceiling on winnings is five times the bonus, for instance, a lucky session that turns a bonus of one hundred into two thousand will pay five hundred, and the rest will be lost.

When no bonus is the better choice

Declining a welcome bonus is a legitimate choice, and sometimes (in our experience, more often than one thinks) the wisest one. Whoever plays without a bonus keeps the freedom to withdraw at any moment, plays the games he or she prefers (including those that would count little or nothing towards the wagering), and is not exposed to the clauses on the maximum bet; some operators have even chosen, at times, not to offer any bonus at all, and their players did not complain about it.

Our "rule of thumb" is simple, and it follows from the calculation above. When the expected cost of the wagering exceeds the bonus, the offer should be declined. When it is lower, the offer can be accepted, provided that the games and the stakes allowed are the ones you would have chosen anyway.

The markets, as examples

The rules change considerably from one country to another: besides the ten-times limit, the United Kingdom has banned the promotions that mix different products, Ontario allows bonuses to be shown only inside the operators' sites, and elsewhere the operators set their own conditions. The operators listed on this page address the international, non-regulated market, and it is the player's responsibility to check, before registering, what the law of the country in which he or she is located allows.