Wagering requirements get quoted as a single number, five times, ten times, and the number is close to meaningless on its own. What decides the cost is the base the multiplier applies to. Five times the bonus alone on a $100 bonus is $500 of required turnover. Five times deposit plus bonus on a $100 deposit matched with $100 is $1,000, double the work for the same headline number. Then the second layer: which bets count, at what minimum odds, and what share of each bet counts when it is a low margin or hedged wager. A bettor who reads only the multiplier will consistently overvalue offers whose base is wide and undervalue plain offers with a narrow base. Do the arithmetic before depositing: required turnover, times the expected loss rate on the bets you will actually place to clear it, is the real price of the bonus. If that price is near the bonus value, the offer is a chore wearing a gift's clothes.
Work one example all the way through
Take a $100 deposit, $100 bonus, ten times rollover on deposit plus bonus, bets at minimum odds of 1.80 counting in full. Required turnover is $2,000. Bet that turnover at prices carrying roughly a 4 to 5 percent margin, a fair sketch of recreational book pricing on main markets, and the expected cost of clearing is $80 to $100. The $100 bonus buys about $0 to $20 of real value, plus the variance of actually running better or worse than expectation across those bets. Change the base to bonus only at the same ten times and required turnover halves to $1,000, expected clearing cost drops to $40 to $50, and the same headline offer is suddenly worth roughly $50. Same multiplier, same bonus, completely different offer.
Minimum odds rules bend the maths again. A floor of 1.80 pushes clearing bets toward prices where variance runs hotter, so the expected cost holds but the spread of outcomes widens: more clearances that end well clear of cost, more that eat the deposit on a bad run. Bet and get offers, where the reward is a free bet token rather than cashable balance, discount further, because a free bet returns stake excluded winnings only, worth roughly 70 to 80 percent of its face at typical conversion.
Related reading on this site: Home and Closing Line Value Is a Habit, Not a Number You Quote at Parties cover the neighbouring problems in more depth.
Expiry and contribution tables are where offers die
Thirty days is a common clearance window, and it interacts with how a person actually bets. A weekend bettor clearing $2,000 of turnover in four weekends is placing bigger or more frequent bets than their normal pattern, and hurried betting is worse betting: prices taken without shopping, markets the bettor does not understand. The cost line in the maths assumes ordinary care. Rushed clearing costs more, which is a design feature of the window, not an accident.
Contribution tables do similar quiet work. Bets on both sides, certain low odds bets, and some markets count partially or not at all toward rollover. None of this is hidden, it sits in the terms nobody opens. The five minutes of reading that matters is base, minimum odds, window, and contributions, in that order. Everything else in the document is commentary.
When to decline a mathematically fine offer
An offer can clear the arithmetic and still be a bad trade. If clearing it means betting markets you cannot price, betting more often than you enjoy, or tying up a bankroll you need liquid, the expected value is being paid in a currency you did not agree to spend. The operators designing these offers understand the completion statistics: a large share of bonuses never clear at all, expiring with the rollover partly done. The honest personal rule is to take only offers you would clear with your normal betting, unchanged. If the offer requires a new personality, the house is buying your habits at a discount.
Frequently asked questions
What does a wagering requirement mean?
It is the total amount a bettor must stake before bonus funds or winnings from them can be withdrawn. The critical detail is the base it multiplies: the bonus alone, or the deposit plus bonus combined, which can double the required turnover at the same headline number.
How do you calculate the cost of clearing a bonus?
Multiply the required turnover by the expected loss rate on the bets used to clear it. Turnover of $2,000 bet at prices with a 4 to 5 percent margin costs roughly $80 to $100 in expectation, which should be compared against the bonus value before depositing.
Why does a free bet token worth $50 pay less than $50?
Because a free bet usually returns winnings only, without the stake. A winning $50 free bet at even money pays $50 profit but the $50 stake is not returned, so its practical value is commonly estimated at about 70 to 80 percent of face value.
What bonus terms matter most besides the rollover number?
The base the rollover applies to, minimum odds for counting bets, the time window to complete it, and the contribution table showing which bets count fully, partially, or not at all. Those four terms decide the offer's real value.