The expected value of a bonus is the bonus amount minus the average cost of meeting its wagering requirement, which is the required turnover times the house edge of the games you play. For most deposit bonuses with 25x–35x deposit-plus-bonus wagering on typical slots, that number comes out negative, and caps and rules lower it further.
Basic formula: bonus EV ≈ bonus amount − (required turnover × house edge).
Wagering on deposit plus bonus roughly doubles or triples turnover compared with bonus-only wagering.
Each offer has a break-even house edge; at typical slot RTPs most deposit bonuses sit below zero.
Max cashout caps, max-bet rules and expiry dates push real value below the simple formula.
A negative-EV bonus buys extra playing time, not profit, so only take one if the play itself is what you want.
Formula
Bonus − (turnover × house edge)
Turnover
Wagering multiple × amount it applies to
Break-even edge
Bonus ÷ turnover
Typical reported slot RTP (RTG)
95%–97.5%
Main value killers
Max cashout, max bet, game weighting, expiry
What the expected value of a bonus means
Expected value (EV) is the average result of a decision if you could repeat it many times. For a casino bonus, it answers one question: on average, does taking this offer leave you with more or less money than not taking it, once you've done the betting the terms require?
A bonus isn't cash. It's a balance you can't withdraw until you've met the wagering requirements, and every dollar you bet while doing that faces the house edge. The bonus is the reward; the edge on the required betting is the price. This page belongs to our casino guides series and builds on casino math basics.
EV describes averages, not your next session. Positive or negative, any single attempt can finish well above or below it.
The bonus EV formula, step by step
You need five numbers from the terms and one from the game: the deposit, the bonus, the wagering multiple, what the multiple applies to, any max cashout, and the game's house edge (100% minus RTP).
Find the bonus amount for your deposit (for example, a 200% match on $100 is $200).
Check what the wagering multiple applies to: bonus only, or deposit plus bonus.
Work out turnover: multiple × that amount. 25x on $100 + $200 is $7,500.
Pick the game you'll actually play and find its RTP; house edge = 100% − RTP.
Expected cost = turnover × house edge. At a 4% edge, $7,500 × 0.04 = $300.
Adjust for limits: a max cashout, a weighting below 100% or a short expiry all lower the real figure.
Worked example: SlotoCash's deposit-plus-bonus wagering
SlotoCash's welcome bonus terms (opens in a new tab) set 25x (deposit + bonus) wagering, a $20 minimum per bonus, a $10 max bet while a bonus is active and no max cashout, with its first deposit bonus listed as a 200% match. The site's general default for other bonuses is 30x deposit plus bonus. Here's a $100 first deposit priced at different reported RTPs.
Two things stand out. First, deposit-plus-bonus wagering raises turnover by half compared with the same multiple on the bonus alone: $7,500 instead of $5,000. Second, the result swings from negative to slightly positive with a 1.5-point RTP change, and the RTPs you can find for RTG slots come from third-party databases rather than the casino. Reported examples range from 95% for Bubble Bubble to 97.5% for Coyote Cash, and casinos can set different versions.
SlotoCash's terms also exclude progressive jackpot slots, video poker, table games and specialty games from bonus play by default, and say play on non-eligible games voids promotion winnings. Treat the bonus as slots-only. More detail is on our SlotoCash welcome bonus page.
Comparing bonus EV across partner offers
The table runs the same method on four offers, each with a $100 deposit except the $25 sign-up code. SlotoCash's figures are from the casino's own terms; the Slot Madness and Decode figures are reported by third-party reviewers and may not match what you see at sign-up.
Simple bonus EV at a 4% and a 2.5% house edge
Offer (source type)
Deposit / bonus
Wagering
Turnover
EV at 4% edge
EV at 2.5% edge
Break-even edge
SlotoCash 1st deposit, 200% (casino terms)
$100 / $200
25x (d+b)
$7,500
−$100
+$12.50
2.67%
Slot Madness 275%, code MAD275 (third-party)
$100 / $275
30x (b+d)
$11,250
−$175
−$6.25
2.44%
Decode 111%, code DECODE111 (third-party)
$100 / $111
25x (b+d)
$5,275
−$100
−$20.88
2.10%
Decode 400%, code EASY25CODE (third-party)
$25 / $100
35x (b+d)
$4,375
−$75
−$9.38
2.29%
LCB's Slot Madness listing (opens in a new tab) is the source of the 275%, $30 minimum and 30x figures, and of "no" max cashout; other reviewers disagree on whether the match is capped at $2,750 or unlimited. Decode doesn't show bonus terms on its public pages. Codes change often, so confirm the current code and terms before you deposit. Our bonus codes page explains how codes work.
A bigger match isn't automatically better. The 275% offer has the largest bonus but also the largest turnover, so its EV at a 4% edge is the most negative in dollars.
How max cashout caps cut bonus value
The simple formula assumes your upside is unlimited. A max cashout puts a ceiling on it. Because a big part of a slot's RTP comes from rare large wins, cutting off those wins removes part of the return you were counting on, so the true EV is lower than the simple number.
Planet 7's 200% welcome offer carries a $1,000 max cashout, according to a third-party listing.
Royal Ace's offer reportedly caps cashouts at 10x the deposit amount, per the same type of listing.
SlotoCash's terms say no max cashout on the welcome series, but its free (no-deposit) bonuses carry a $25 minimum and $200 maximum cashout.
Silver Oak's offer page says "no max withdrawal" on its welcome bonus.
There's no simple adjustment for a cap, because it depends on the game's payout distribution, which casinos don't publish. The practical rule: the tighter the cap relative to the bonus, the more you should mark down the estimate. Our pages on max cashout explained and max cashout rules go further.
Game weighting, max bets and expiry
Three more terms change bonus EV, usually downward.
Terms that lower the expected value of a bonus
Term
What it does
Example from published or reported terms
Game weighting
Some games count less, or need a higher multiple
Silver Oak's terms set 60x for table games and video poker against 30x–40x for slots
Excluded games
Play on them can void winnings
SlotoCash excludes progressives, video poker, table and specialty games by default
Max bet
Caps stake size; breaking it can void winnings
SlotoCash: $10 per spin while a bonus is active
Expiry
Unfinished wagering is forfeited
SlotoCash general terms: 90 days; not stated for several other partners
Withdrawal caps
Large wins are paid out slowly
SlotoCash: $5,000 a week; third-party reports list $2,500 a week at Slot Madness
Bonuses are built for slots, and table games are usually excluded or weighted lower. Our guide to game weighting shows how contribution rates multiply the required turnover.
Expected value of a no-deposit bonus
No-deposit bonuses break the simple formula. You haven't put any money in, so your balance can't fall below zero; once the bonus is gone, you stop. That floor means the expected cost can't exceed the bonus, and the real question becomes how often you finish the wagering with anything left, capped by the max cashout.
Silver Oak's no-deposit page (opens in a new tab) lists $25, $50 and $100 codes with 30x wagering (60x for blackjack and video poker) and a $100 max cashout. On the $25 code, 30x means $750 of slot bets; at a 4% edge the average cost of that play is $30, more than the bonus, so most attempts are likely to end at zero. The ones that don't are capped at $100.
So a no-deposit bonus costs you no money but usually returns little, and the cashout cap limits the best case. Many casinos also require a deposit before any withdrawal; check the terms. See our no-deposit bonus guide for more.
Bonus EV versus what actually happens
EV is an average across many attempts. In a single attempt, two things dominate: variance, and the chance of running out of money before the wagering is done. With $7,500 to wager from a $300 balance, many players will bust partway through and a few will finish well ahead.
That's why a slightly positive EV on paper doesn't make a bonus a money-making plan. RTPs are reported rather than published by the casino, terms can change, a single rule breach can void winnings, and caps trim the upside. Treat any bonus as paid entertainment with conditions, and size it to your bankroll.
When to decline a bonus
The break-even house edge is below the edge of the games you enjoy.
The turnover is far more play than your budget or time allows.
A max cashout is small relative to the bonus.
Terms conflict between pages and support can't confirm which applies.
You want to withdraw quickly; an active bonus usually locks your balance.
You mainly play table games or video poker, which are usually excluded or weighted lower.
Declining is often the better choice for players who value fast, simple withdrawals. Our page on bonus vs no bonus covers the trade-off, and bonus red flags lists terms worth walking away from.
Bonus offers via our links, with their published terms
If you decide a bonus fits your plans, run the formula on the terms shown at sign-up, which can differ from those below. All three casinos are offshore and not licensed or regulated by any US state, so there's no state regulator to complain to and balances have no state-backed protection. Check your state's law first; our guide to offshore casino legality explains the picture.
SlotoCash Casino: $6,000 Welcome Bonus + 60 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). The casino's terms list 25x (deposit + bonus), a $20 minimum per bonus, no max cashout and a $10 max bet; its own site advertises a different five-deposit package. See our SlotoCash review.
Slot Madness Casino: $2,500 Welcome Bonus + 50 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). Third-party reviews report 30x (bonus + deposit) on slots, a $30 minimum deposit and no max cashout. See our Slot Madness review.
Decode Casino: $5,000 Welcome Bonus + 50 Free Spins, via our link (new players, 21+ or 18+ where allowed, terms apply). Decode's terms aren't visible publicly; third-party listings report 25x–35x (bonus + deposit) and $25 minimums. See our Decode review.
Free spins and bonus money are for slots; table games are often excluded or weighted lower. We earn a commission if you join through these links, and our order is commercial. Help is available any time at 1-800-MY-RESET via the National Problem Gambling Helpline (opens in a new tab).
Ad21+ (18+ where allowed). Ranked by us in a commercial order; we earn commission from these links. Advertiser disclosure
Ordered by how fully each casino's bonus terms can be checked. All are offshore and not licensed by any US state; check your state's law. 21+ (18+ where allowed), terms apply.
SlotoCash Casino#1 on our listBiggest bonus on our list
Published terms (casino terms): SlotoCash advertises up to $7,777 + 300 spins over five deposits on its own site. Eligible games: Slots, keno and scratch cards (progressive jackpots excluded).
Who runs it: License not shown on its site; reported as a Deckmedia N.V. brand (Curaçao). Regulator notes: Named in a Michigan Gaming Control Board cease-and-desist release, October 8, 2026.
21+ (18+ where allowed). New players. Min deposit $20 per bonus. Wagering 25x deposit + bonus. Max cashout: None stated. Withdrawal cap $5,000 / week. Terms source: casino terms. Terms apply. Offer checked October 28, 2026.
Published terms (reported): Third-party reviews report a 275% match up to $2,750 with code MAD275; the casino site could not be checked directly. Eligible games: Slots and keno (reported).
Who runs it: License not shown; third parties report Anjouan, Costa Rica or none. Regulator notes: Named in a Michigan Gaming Control Board cease-and-desist release, August 14, 2025.
21+ (18+ where allowed). New players. Min deposit $30 (reported). Wagering 30x deposit + bonus (reported). Max cashout: None (reported). Withdrawal cap $2,500 / week (reported). Terms source: reported. Terms apply. Offer checked October 28, 2026.
Published terms (reported): Decode advertises a $111 free chip and crypto bonuses on its own site; deposit-bonus codes and terms vary. Eligible games: Mainly slots; check each code.
Who runs it: License not shown on its site; third parties report Curaçao. Regulator notes: Third parties report it refuses players in MD, NJ, NY and WA.
21+ (18+ where allowed). New players. Min deposit $25 (reported). Wagering Varies by code (25x–35x reported). Max cashout: Varies by code. Withdrawal cap $2,500 / week (reported). Terms source: reported. Terms apply. Offer checked October 28, 2026.
These casinos are offshore operators. They are not licensed or regulated by any US state, and state consumer protections do not apply. Check the law in your state before you play. Terms marked “reported” come from third-party reviews; the terms shown at sign-up apply.
21+ (18+ where allowed). Every casino game has a built-in house edge, so over time you should expect to lose what you stake. Set a budget before you play and stop when it’s gone: responsible gambling tools and free help. Gambling problem? Call or text 1-800-MY-RESET (1-800-697-3738).
Frequently asked questions
How do you calculate the expected value of a casino bonus?
You calculate it by subtracting the expected cost of the required wagering from the bonus amount. Turnover is the wagering multiple times the amount it applies to, and expected cost is turnover times the game's house edge. A $200 bonus with $7,500 of turnover at a 4% edge has an EV of about −$100. Then mark it down further for caps and rules. Our casino math basics guide covers the building blocks.
Are casino bonuses ever positive expected value?
Occasionally on paper, but rarely in practice once caps and rules are counted. With 25x deposit-plus-bonus wagering, a 200% match needs a house edge below about 2.67% to break even, which only the highest reported slot RTPs reach. Max cashouts, expiry dates and game restrictions then lower the real value. Treat any bonus as extra playing time with conditions. See wagering requirements explained for how the multiples work.
What is a break-even house edge for a bonus?
The break-even house edge is the bonus amount divided by the required turnover. If a game's edge is below that figure, the simple EV is positive; above it, negative. For a $275 bonus with $11,250 of turnover, the break-even edge is about 2.44%, meaning only games with an RTP above roughly 97.56% would clear it. Our page on how slot RTP works explains where RTP figures come from.
Does deposit-plus-bonus wagering make a big difference?
Yes, it makes a large difference, because the multiple applies to your own deposit as well as the bonus. A 25x requirement on a $200 bonus alone means $5,000 of bets, but on $100 deposit plus $200 bonus it means $7,500. That extra turnover raises the expected cost by half. Always check which basis the terms use. The bonus wagering requirements page lists common formats.
How does a max cashout affect bonus value?
A max cashout lowers bonus value by capping your best outcomes, which are a big part of a slot's return. Third-party reviews report a $1,000 cap on Planet 7's welcome offer and a 10x-deposit cap at Royal Ace, for example. The simple EV formula ignores caps, so treat it as an upper estimate when one applies. Read max cashout explained for worked cases.
What is the expected value of a no-deposit bonus?
A no-deposit bonus can't cost you money, so its value is the chance of finishing the wagering with something left, capped by the max cashout. Silver Oak's $25 code requires $750 of slot bets at 30x, which at a 4% edge costs more on average than the bonus, so most attempts are likely to end at zero, and wins are capped at $100. See our no-deposit bonus guide.
Which games give the best bonus expected value?
The best bonus EV comes from the eligible slot with the highest reliable RTP, because a lower edge cuts the cost of wagering. Reported RTG slot RTPs run from about 95% to 97.5%, but these figures come from third-party databases and casinos can use different settings. Table games and video poker are usually excluded or weighted lower, so check the terms. See game weighting explained.
Should I always take a casino bonus?
No, you shouldn't always take a bonus; declining is often better if you want fast withdrawals or prefer games that don't count. An active bonus usually locks your balance until wagering is done, and breaking a max-bet or game rule can void winnings. Take one only if the extra play suits your budget. Our comparison of bonus vs no bonus sets out the trade-off.
What is the expected value of the SlotoCash welcome bonus?
On a $100 first deposit, it's roughly −$100 to +$12.50 depending on the slot's RTP. SlotoCash's terms list a 200% first-deposit match with 25x deposit-plus-bonus wagering, so $100 plus a $200 bonus needs $7,500 of bets. At a 4% house edge that costs about $300 on average, giving −$100; at 2.5% it costs $187.50, giving +$12.50. Its $10 max bet and slots-only rules still apply, and the package via our link can differ from the site's. Our SlotoCash welcome bonus page has the full terms.
Is the Slot Madness 275% bonus worth it?
On the reported terms, its expected value is negative at typical slot RTPs. Third-party reviewers report a 275% match with code MAD275, a $30 minimum and 30x bonus-plus-deposit wagering. A $100 deposit brings $275 of bonus and $11,250 of turnover, which costs about $450 at a 4% edge, for an EV near −$175; even at 2.5% it's about −$6.25. The break-even edge is roughly 2.44%. Reviewers disagree on whether the match is capped, and codes change, so confirm the terms at sign-up. See our Slot Madness bonus codes page.
Does a bigger match percentage mean a better bonus?
No, a bigger match usually brings more turnover, which can make the expected value worse in dollars. Compare two reported offers on a $100 deposit: Decode's 111% match at 25x needs $5,275 of bets, while Slot Madness's 275% match at 30x needs $11,250. At a 4% edge the first works out near −$100 and the second near −$175, even though the second bonus is more than twice as large. The figure to compare is the break-even house edge, bonus divided by turnover. Our comparing casino bonuses guide shows the method across more offers.
Can I clear a bonus with blackjack for better expected value?
Usually not, because table games are excluded or need a much higher multiple. SlotoCash's terms exclude table games, video poker and specialty games from bonus play by default and say play on non-eligible games voids promotion winnings. Silver Oak's terms set 60x for table games and video poker against 30x to 40x for slots, which doubles or more the turnover and wipes out the lower edge. Check the eligible-games list before choosing a game, not after. Our best bonus for blackjack page looks at how the rules treat card players.
How long does it take to clear a $7,500 wagering requirement?
At $1 a spin it takes 7,500 spins, which is about 19 hours at an example pace of 400 spins an hour. Raising the stake shortens the time but not the expected cost: $7,500 at a 4% edge costs about $300 on average whatever the bet size. Bigger bets also raise the chance of busting before you finish, and SlotoCash caps bets at $10 per spin while a bonus is active. SlotoCash's general terms give 90 days to finish, so check the expiry for your offer. Our how to clear a casino bonus page covers pacing.
Do weekly withdrawal limits change the value of a bonus?
They don't change the EV formula, but they change how quickly you can collect a win. SlotoCash's terms cap withdrawals at $5,000 a week, and third-party reports list $2,500 a week at Slot Madness. A $15,000 balance after clearing a bonus would take three weeks at SlotoCash's cap, and six at $2,500 a week, while the money stays at an offshore casino with no state-backed protection. That delay is a real cost the simple formula ignores. Read our weekly withdrawal limits guide before chasing a large bonus.
We use no tracking cookies. We store one item in your browser to remember this notice. Casino sites may set their own cookies after you follow an advert link. Cookie policy
