Free Spin Bonuses at Online Casinos
Nearly all legal online casinos in the USA offer free spins in some form, whether as part of a welcome package, a standalone no-deposit bonus, or via one-off promotions for existing players.
Free spin casino bonuses can provide legitimate value to players, but they are often more generous on paper than in practice. In this guide, we’ll discuss how bonus spins work, which offers are worth claiming, and explain the most common types of free slot spin promos you’re likely to encounter.
Note: Licensed casinos operate in only a handful of states. If your state doesn’t regulate online gambling, see our sweepstakes casino bonuses page for information about the next-closest alternatives where you live.
Free Spin Casino Offers
How Free Spins Work
Free spins give you a set number of spins on a slot machine at a fixed bet size, funded by the casino rather than your balance. The concept is simple, but the details vary significantly from one promo to the next. And it’s the details that determine whether a bonus spins offer delivers genuine value.
Spin Value
Every free spin you receive in a promotional offer has a fixed value, often around $0.10 to $0.20. That value functions as the bet size for each spin. For example, a $0.10 free spin generates the same outcome as a $0.10 wager placed with your own money.
Typically, you’ll need to check the promo’s terms and conditions to see how much each free spin is worth.
Game Restrictions
Free spins are almost always restricted to one or a small handful of specific slot titles chosen by the online casino. Usually, you don’t get to pick which games you use your free spins on.
This is one of the most overlooked factors because you have no control over the slot’s return-to-player (RTP) rate, volatility, or bonus features during bonus-spin play.
Some casinos assign free spins to popular, well-known slots with high RTPs. Others use free spins to drive traffic toward newer or lower-RTP games.
Winnings from Free Spins Bonuses
What happens to the money you win with your free bonus spins varies by casino and promotion. Generally, free spins pay winnings either as cash (preferred) or as bonus funds that come with a wagering requirement you must meet before withdrawal (less ideal).
Free Spins Winnings Paid as Cash
Cash winnings mean your free spin earnings go directly into your withdrawable balance. Promotions that pay winnings as cash have no wagering requirement – you can withdraw anything you win immediately.
In nearly all cases, free spins bonuses that pay winnings as cash are better than promos that pay winnings as bonus funds with wagering requirements. Fortunately, most US online casinos pay free spins winnings as cash rather than as bonus credits.
Winnings Paid as Bonus Funds
In some cases, online casinos pay the winnings from your free spins into a restricted bonus balance. Then, you’ll need to meet an additional wagering requirement before you can withdraw your winnings.
For example, imagine you win $100 from a free spins casino promotion that pays your winnings as bonus funds with a 3x wagering requirement. In that case, you would have to place an additional $300 worth of wagers on qualifying games before withdrawing your winnings.
The wagering multiplier on winnings paid as bonus funds varies, but it’s more often in the range of 1x to 5x, although 15x or higher is not unheard of.
Always check how winnings are classified before claiming any free spin offer. The distinction between cash and bonus credit payouts is the single biggest factor in determining a free spin promotion’s real value.
How Casinos Distribute Free Spins Bonuses
Online casinos usually distribute free spins in daily batches rather than all at once. For example, a 500-spin bonus might award 50 spins per day for 10 days, requiring a daily login to claim each batch.
Two critical details accompany most batched promotions:
- You must log in to claim each day’s spins: Missed days mean forfeited spins with no option to recover them later. If you claim spins on day 1, skip days 2 through 4, and return on day 5, you receive only two days’ worth of spins total.
- Each batch typically expires within 24 hours of being credited: Unused spins from a given day don’t carry over to the next. If you log in on Monday and claim 50 spins but don’t use them, those 50 spins disappear by Tuesday.
The batched model means that a “500 free spins” offer requires 10 separate logins over 10 consecutive days and 10 individual play sessions to capture the full value. Players who travel, have limited availability, or simply forget to log in will receive fewer spins than the headline number advertises.
Types of Free Spin Casino Promos
Free spins bonuses at US online casinos fall into several categories:
No-Deposit Free Spins
Some online casinos offer bonus spins to new players who sign up for accounts, with no deposit necessary.
No-deposit free spins bonuses offer a low-risk way to try an online casino’s games, but they’re usually relatively low-value promos.
Common characteristics of no-deposit free spin offers include per-spin values on the lower end (often $0.10), restriction to a single slot title, a small total number of spins (typically 10 to 50), and wagering requirements on winnings that can range from 0x to 20x. The average face value for no-deposit free spin bonuses in the US market generally ranges from $2.50 to $10.
Despite those caveats, bonus spin promos are worth claiming when you find them. Even with relatively low face values and restrictive withdrawal terms, the downside is limited to your time.
See our complete guide for more details on no-deposit casino promos:
Deposit-Triggered Free Spins
First deposit spin bonuses are usually just one part of a welcome package that you can claim after signing up for an account and making your first deposit (usually $10 or $20 minimum to qualify).
The advantage of first deposit spin bonuses is that they tend to be significantly larger than no-deposit spins, with some offering 500 to 1,000 spins or more.
Per-spin values on first deposit spin bonuses are often $0.20 or more, and some online casinos pay winnings from free spins as cash with no wagering requirement. The combination of higher volume, higher spin values, and more favorable payout terms make makes deposit-triggered spin bonuses substantially more valuable on a per-spin basis than their no-deposit counterparts.
Ongoing and Loyalty Free Spins
Welcome bonuses get the most attention, but online casinos also often give free spins via promos for existing customers through loyalty programs, weekly rewards, and one-off events.
Common formats include weekly spin drops (e.g., claim a set number of spins every Friday), tiered loyalty rewards where accumulated play earns periodic spin bonuses, seasonal promotions tied to holidays or major sporting events, and game-specific launch promotions where the casino offers free spins on newly released slot titles.
Free Slot Tournaments
Occasionally, online casinos award free entries into slot tournaments through existing-player promotions or via ongoing rewards programs.
In a freeroll slot tournament, the casino gives every entrant a set number of credits or a fixed time window to play a designated slot. Players compete against each other for prizes based on their final ranking in terms of total amount won.
What Free Spin Bonuses Are Actually Worth
Online casinos advertise spin counts. Players care about dollars. All it takes to bridge that gap and determine the true value of any free spins bonus is a little bit of basic math.
Understanding Face Value
The face value of any promo that awards bonus spins is the number of spins multiplied by the value per spin. A 200-spin offer at $0.10 per spin has a face value of $20. A 500-spin offer at $0.20 per spin has a face value of $100.
Face value represents the total amount of play funded by the casino. You can think of the face value as equivalent to placing that many real-money wagers at the given bet size.
From Face Value to Expected Value
Face value tells you the total play. Expected value (EV) tells you what you’ll actually keep.
Note: Expected value is a theoretical number that tells you what to expect over the long run, on average. Your actual results in any single session may diverge significantly from the expected value due to the volatile nature of online slots. Anything can happen over a few hundred spins, but the EV tells you whether an offer is a good deal (mathematically speaking).
Two factors drive the divide between face value and expected value:
- The house edge of the slots you play
- The wagering requirement on any winnings (if applicable)
The slot’s house edge determines how much the casino retains from your spins on average. Most online slots in the USA have a return-to-player rate between 92% and 98%, with the majority clustering around 95% to 96%. At 95% RTP, the casino keeps $0.05 of every $1.00 wagered on average.
The wagering requirement on winnings determines how much additional play the casino requires before you can withdraw. Every additional round of wagering exposes your winnings to the house edge again.
The Quick Test
To quickly assess whether a free spin offer provides real value:
Multiply the number of spins by the per-spin value to get the face value. If the offer has no wagering requirement, the expected value is approximately 95% to 96% of the face value (accounting for the house edge on the initial spins).
If the offer does carry a wagering requirement, multiply your expected winnings by the wagering multiplier, then multiply that total by the house edge. If the resulting expected loss exceeds or matches the expected winnings, the offer has minimal value.
Example 1: Free Spins with No Wagering Requirement
You receive 200 free spins at $0.20 per spin on a slot with 95% RTP:
- Face value: 200 x $0.20 = $40
- Expected return from spins: $40 x 0.95 = $38
- Wagering requirement: None
- Expected value: $38
With no wagering requirement, you get to withdraw your winnings with no further wagering necessary. The house edge costs you roughly $2 on $40 in total play.
Example 2: Free Spins with a 20x Wagering Requirement
You receive 25 free spins at $0.10 per spin on a slot with 95% RTP:
- Face value: 25 x $0.10 = $2.50
- Expected return from spins: $2.50 x 0.95 = $2.38
- Wagering required on winnings: $2.38 x 20 = $47.60
- Expected loss during wagering: $47.60 x 0.05 = $2.38
- Expected value: $2.38 – $2.38 = approximately $0
A 20x wagering requirement on winnings from low-value spins consumes virtually all of the expected return. The bonus has near-zero expected value despite technically offering “free” play.
Free Spins Value Calculator
Use this calculate to quickly estimate the expected value (EV) of a free spins bonus by inputting the number of spins, how much each spin is worth (check the offer’s terms and conditions for this number) and the return-to-player (RTP) figure of the slot you plan to play (check the slot’s in-game information page for this number).
In-Game Free Spin Bonus Rounds
The phrase “free spins” can also refer to the additional spins that some online slots award during bonus rounds that occur when players hit a specific combination of symbols (e.g., three or more scatter symbols).
The mechanics vary by slot title, but what typically happens is the game pauses all play, announces the beginning of a bonus round, and changes the background scenery before awarding a set number of spins at your current bet size.
In-game free spin rounds often include enhanced features that aren't active during base gameplay, such as additional wild symbols, multipliers on winnings, expanding reels, and cascading wins where winning combinations are replaced by new symbols for additional chances to win.
The key difference between free spins awarded during bonus rounds is that they come with no additional terms and conditions. Instead, they are a core game mechanic and pay all winnings as withdrawable cash.
A Closing Note on Responsible Play
Despite any marketing efforts that indicate otherwise, free spins are not “risk-free.” Even no-deposit free spins come with wagering requirements that you must meet to enable withdrawals, and there’s always a chance that your balance hits zero before you clear your winnings for withdrawal.
Plus, online casinos do not offer bonus spins out of charity. They offer free spins because they know that, on average, most players will deposit and lose more money than the casino awards in free spins.
Even if you claim a free spins bonus with no intention of ever depositing, it’s worth your time to use every licensed casino’s built-in responsible gambling tools to set daily/weekly/monthly limits on how much you deposit, how much you wager, how much you can lose, and how long you can play per day.
Additionally, licensed online casinos in every state offer timeout periods and self-exclusion programs that you can enable if you ever feel like your gambling is getting out of control.
If you ever feel like clearing a free spins bonus is starting to feel like an obligation, or if you’re depositing more than you originally planned in order to finish a wagering requirement, those are signals to step back.
For support, the National Council on Problem Gambling operates a confidential helpline at 1-800-MY-RESET (1-800-697-3738) and offers live chat for anyone with questions or concerns.