Slot machine payback: the real odds
Slot machines are built to pay back less than they take in — so the only real question is how much. From official state gaming reports, here's the actual payback (return‑to‑player) by coin denomination and casino market, and what an hour of play really costs. The house always wins — this is how to bleed the slowest.
Figures from 2024 state gaming reports.
Payback by denomination
The counterintuitive truth: penny slots are the worst. The lowest denominations carry the biggest house edge; higher‑denomination machines generally pay back more (Las Vegas Strip).
| Denomination | Payback | House edge | You lose / $100 bet |
|---|---|---|---|
| Penny (1¢) | 88.3% | 11.7% | $12 |
| Nickel (5¢) | 92% | 8% | $8 |
| Quarter (25¢) | 89.3% | 10.7% | $11 |
| Dollar ($1) | 92.3% | 7.7% | $8 |
| $5 | 94.5% | 5.5% | $6 |
| $25 | 94.1% | 5.9% | $6 |
| $100 | 93.7% | 6.3% | $6 |
Loosest vs. tightest casino markets
Locals and regional markets pay back more than tourist floors. Overall slot payback, ranked from loosest (best for you) to tightest.
| # | Market | State | Payback | House edge | You lose / $100 |
|---|---|---|---|---|---|
| 1 | Reno | NV | 94.6% | 5.4% | $5 |
| 2 | Boulder Strip / N. Las Vegas | NV | 93.8% | 6.2% | $6 |
| 3 | Las Vegas Downtown | NV | 92.2% | 7.8% | $8 |
| 4 | Mississippi (Gulf Coast) | MS | 92.2% | 7.8% | $8 |
| 5 | Laughlin | NV | 92.2% | 7.8% | $8 |
| 6 | Las Vegas Strip | NV | 91.8% | 8.2% | $8 |
| 7 | Atlantic City | NJ | 90.7% | 9.3% | $9 |
| 8 | Louisiana | LA | 90.4% | 9.6% | $10 |
| 9 | Indiana | IN | 90.4% | 9.6% | $10 |
| 10 | Pennsylvania | PA | 90.1% | 9.9% | $10 |
| 11 | Missouri | MO | 89.9% | 10.1% | $10 |
What an hour of slots costs you
Expected loss = your bet × spins × the house edge. Pick a machine (or set the payback), your bet per spin, and how fast you play.
Long‑run average — any single session swings far more (that's volatility). Even a "loose" 95% machine still costs you 5% of everything you feed it. How payback works →
How to read these numbers
- Payback (RTP) is the share of all money bet that comes back over the long run; house edge is the rest (100% − payback) — what you lose on average.
- Penny ≠ cheap. Low denominations have the highest edge; high‑limit machines pay back more, but you wager far more per spin, so the dollars lost per hour are usually higher.
- Payback isn't your win odds. Hit frequency and volatility are separate — a high‑payback game can still be very streaky.
Venues we can't rank (and why)
Every figure above comes from a gaming regulator that publishes payback. Some of the most common places people play don't have to — so rather than invent a number, we leave them out. The rule of thumb: the less a venue is required to disclose, the worse the odds tend to be.
- Cruise‑ship casinos. They only run in international waters under a foreign flag (Bahamas, Panama, Malta…), outside any U.S. gaming board, and don't publish payout percentages. Widely considered the worst odds going — estimated ~85–90% payback vs ~92–96% on land — but that figure is anecdotal, not reported.
- Tribal / Native‑American casinos. Sovereign and governed by state compacts; many states (California and Florida among them) don't publish tribal payback, so we can't include them honestly.
- Airport, bar & "route" slots. Machines in airports, bars, and convenience stores are notorious for the tightest holds and aren't broken out by location in a way we can rank fairly.
Frequently asked questions
What are the real odds on a slot machine?
Every slot is set to pay back less than it takes in. Reported payback ranges from about 88% on penny machines to ~95% on high-denomination ones — the rest (the house edge) is what you lose on average. No strategy changes it; each spin is independent and random.
Why are penny slots the worst?
Counterintuitively, the lowest denominations carry the highest house edge — penny slots pay back around 88% (a ~12% edge) versus ~94-95% on $5 machines. You bet less per spin, but a bigger share of it is the casino's cut.
Which casinos have the loosest slots?
Locals and regional markets pay back more than tourist floors. In Nevada, Reno (~94.6%) and the Boulder Strip (~93.8%) beat the Las Vegas Strip (~91.8%). Atlantic City and most regional states sit around 90%.
Does higher payback mean I'll win?
No. Even a 95% machine loses you ~5% of everything you bet on average, and high variance means most sessions lose more than that. Higher payback just means you bleed slower.
Payback figures are a dated snapshot from official state gaming reports (by area/denomination, not per machine) and change year to year — verify locally. 21+ where applicable. Informational only, not gambling advice. All slots are negative expected value — please play responsibly. Gambling problem? Call 1‑800‑GAMBLER.