RTP rules by jurisdiction
Whether the law sets a minimum return-to-player, and whether it must be shown to players, varies sharply from one regulator to the next. Most regulators set no minimum at all — they lean on RNG certification instead. Here is what the primary sources say, country by country.
Why the rules diverge
There is a widespread assumption that the law fixes a floor under how much a slot must return — that a regulated game is, somewhere in statute, guaranteed to pay back some minimum share of what is staked. For most of the regimes below, that is simply not how it works. The more common approach is to say nothing about the return figure at all and to regulate the mechanism instead: the random number generator must be certified, outcomes must be genuinely random and independent, and the game must behave as its published rules describe. The return that emerges is then a property of the game’s design, checked at certification, rather than a number the law dictates.
Where a statutory minimum does exist, it tends to sit in one of two families: a European licensing regime that fixes a per-title floor (Italy’s 90% for online slots), or a United States state that borrows the minimum-theoretical-payout rule from its slot-machine regulations and applies it to internet play (New Jersey’s 83%, Michigan’s 80%). Display duties diverge just as much: a few regulators require the return to be shown to the player, some in fine detail; most leave it to the game rules and the certificate.
What the primary sources say
Each row below is drawn from the regulator’s own technical standards, gambling act or licence conditions, with the instrument named and linked. Cells reading “No minimum” are the honest finding, not a gap in the research — those regimes deliberately set no floor.
| Jurisdiction | Minimum RTP | Display to player | Weighted-average rule | Primary source |
|---|---|---|---|---|
| United KingdomCurrent · 100%high-confidence | No minimum No statutory minimum RTP for online slots or casino games. The Gambling Commission's Remote gambling and software technical standards (RTS) regulate fairness and randomness rather than a return floor — RTS 7 sets no minimum payout percentage. | Not required There is no standalone duty to publish the RTP figure. RTS 7 requires games to be implemented fairly and in line with the rules and payouts as described to the customer (7B), bars designs that mislead about the likelihood of results (7C), freezes rules, payouts and outcome probabilities while a game is live (7D), and requires the result of each game and the customer's wager to be clearly and accurately displayed (7E). Game rules must be available to the player before play. | — | UK Gambling Commission — RTS 7: Generation of random outcomesUK Gambling Commission — Remote gambling and software technical standards (RTS) |
| MaltaCurrent · 100%medium-confidence | No minimum No statutory minimum RTP. The Gaming Authorisations and Compliance Directive (Directive 3 of 2018) sets no payout-percentage floor; the regime turns on certification of the random number generator and game engine rather than a minimum return. | Not required The Directive requires games to be conducted in a fair and honest manner and to be certified, but codifies no player-facing duty to display the RTP figure; fairness is carried through the certified game engine and the published game rules. | — | Malta Gaming Authority — Directive 3 of 2018 (Gaming Authorisations and Compliance Directive)Gaming Act (Chapter 583 of the Laws of Malta) |
| DenmarkCurrent · 100%high-confidence | No minimum No statutory minimum RTP. The Danish Gambling Authority's certification programme sets no minimum payout percentage; it regulates RNG integrity and the accuracy of the stated return instead. | Required Certification Programme SCP.07.03 (Requirements for games — online casino), section 3.3, requires the game platform to inform the customer of the theoretical return to player, under optimal strategy, in the game rules for each game; the stated figure must be correct and must not be manipulated to hold a constant return, and jackpot contributions must be reflected in it. | For progressive and jackpot games the theoretical minimum RTP must be correctly displayed, and the jackpot's effect must be reflected in the stated return (SCP.07.03 §3.3.1). | Spillemyndigheden — SCP.07.03 Requirements for games (online casino)Spillemyndigheden — Certification programme for online casino |
| SwedenCurrent · 100%high-confidence | No minimum No statutory minimum RTP for commercial online gambling. The Gambling Act (spellagen, SFS 2018:1138) grants only an enabling power to make rules on bets, winnings and payout percentages (Ch. 21 §2); it sets no minimum in the Act itself. | Required Gambling Act Ch. 14 §4 requires the licence holder to keep all relevant information about a game — including its rules and the likelihood of winning — easily accessible to players, in Swedish. Ch. 14 §5 bars designs that give the impression of being close to a win when that is not the case. | — | Spelinspektionen — Gambling Act (SFS 2018:1138), English translationSpelinspektionen — SGA regulations (English) |
| SpainCurrent · 100%high-confidence | No minimum No statutory minimum RTP for online slots. Orden HAP/1370/2014, the basic regulation for games-of-chance machines, deliberately imposes no requirement on the programming of the chance cycles; the operator sets the prize schedule. | Required Art. 8.1.2(e) requires operators to give players, per game, both the theoretical mathematical expected return computed over one year and the actual realised payout percentage for each of the six preceding months (progressive-jackpot prizes excluded). Game rules must be published permanently and freely (Art. 6). | The dual-metric duty amounts to a mandated realised-return disclosure: an annual theoretical figure plus a rolling six-month actual figure, per game. | Orden HAP/1370/2014 — reglamentación básica del juego de máquinas de azar (BOE)Resolución de 6 de octubre de 2014, DGOJ — technical standards (BOE) |
| ItalyCurrent · 100%medium-confidence | 90% floor A statutory minimum payout of 90% applies to ADM-licensed online slots, binding each individual game title rather than a network average. It is distinct from, and higher than, the land-based floors (roughly 84–85% for VLTs and 65% for bar AWPs). | Required ADM's platform-certification guidance requires each game's technical documentation to contain a formal derivation of the game's RTP; the player-facing payout is disclosed through the mandatory game rules and help screens. | The 90% floor is applied per game title, not as a portfolio or network average. | Agenzia delle Dogane e dei Monopoli (ADM) — game and platform certificationEGP-FIPE — payout rules for licensed gaming (trade body) |
| PortugalCurrent · 100%medium-confidence | No minimum No statutory minimum RTP located for online slots. SRIJ's technical requirements (Regulamento n.º 903-B/2015) define %RTP as the expected share of total stakes a game returns over the long run — by a theoretical or a simulated approach — but set no floor. | Not required The technical requirements govern the RNG, logging and certification by a recognised certification body; no player-facing duty to display the RTP figure appears in the instrument, in contrast with Spain. | — | Regulamento n.º 903-B/2015 — SRIJ technical requirements for online gaming |
| RomaniaCurrent · 100%medium-confidence | No minimum No statutory numeric minimum RTP was located for online or land-based slots. Under the framework (GEO 77/2009 and its norms, GD 111/2016) each game's RTP must be certified by an ONJN-licensed Class II laboratory and approved by the ONJN before launch; the rules refer to a minimum winning percentage as a per-game certification category rather than a stated statutory figure. | Not required Operators must publish transparent game rules and disclose the odds, and each game's RTP must be certified, but no instrument requiring a specific RTP figure to be displayed to players was located. | — | Romania Gambling Comparative Guide (Baciu Partners), MondaqOficiul Național pentru Jocuri de Noroc (ONJN) |
| NetherlandsCurrent · 100%high-confidence | No minimum No statutory minimum RTP for online slots or casino games. The Remote Gambling Act framework rests on fair play and certified RNGs (Regeling koa Art. 3.2 and 3.2a), not a payout floor. | Required Besluit koa Art. 4.34(1)(d) requires the licence holder to give players access, on the interface, to the game rules, the chances of winning, the method of determining chance and — as far as possible — the payout percentage, presented in a suitable, comprehensible and accessible way. | — | Besluit kansspelen op afstand — Art. 4.34 (wetten.overheid.nl)Regeling kansspelen op afstand — Art. 3.2, 3.2a (wetten.overheid.nl) |
| GermanyCurrent · 100%high-confidence | No minimum No statutory minimum RTP for virtual slots (virtuelle Automatenspiele). §22a of the Interstate Treaty on Gambling 2021 (Glücksspielstaatsvertrag) regulates stake, timing and jackpots but sets no payout floor. | Required §22a(3) GlüStV requires the player to be shown, where the stake is placed, the probability of winning the top prize and the average payout ratio per €1 staked; the game rules and pay table must be easily accessible and understandable. | The mandated disclosure is itself an average — the average payout ratio per €1 of stake. | Glücksspielstaatsvertrag 2021 — consolidated text (§22a), GGLGemeinsame Glücksspielbehörde der Länder (GGL) |
| New JerseyCurrent · 100%high-confidence | 83% floor A statutory minimum applies: each slot machine game requiring a wager must have a theoretical RTP of at least 83% (N.J.A.C. 13:69E-1.28A(a)). Online slots are approved slot machine games offered through the internet gaming system, so the 83% floor governs them. | Not required The RTP is certified to the Division of Gaming Enforcement rather than required to be shown in-game; operators must include a full explanation of all applicable rules in the terms made available to patrons (N.J.A.C. 13:69O-1.2). | Theoretical RTP must not decrease by more than 0.01 percentage point with an increased wager unless the aggregate of the decreases is no more than 0.5% (13:69E-1.28A(d)); a game substantially similar to an approved game must use a payout percentage no greater than the lowest of the approved game (13:69O-1.2). | N.J.A.C. 13:69E-1.28A — slot machine minimum theoretical payoutN.J.A.C. 13:69O-1.2 — internet gaming system rules |
| MichiganCurrent · 100%high-confidence | 80% floor A statutory minimum applies: each house-banked internet game requiring a wager must have an RTP of at least 80% and no more than 100% unless the Board authorizes otherwise, calculated across the highest and lowest levels of player skill (Mich. Admin. Code R 432.633b(1)). | Not required Game rules must be displayed to the participant and games must operate in accordance with them; the RTP calculation is filed with the Michigan Gaming Control Board rather than mandated as an in-game figure. | RTP must not decrease by more than 0.01 percentage point with an increased wager unless the aggregate is no more than 0.5% (R 432.633b(3)); projected progressive contributions cannot count toward the minimum RTP (R 432.633b(4)); the top advertised award must occur at least once in every 50 million games (R 432.633b(2)). | Michigan Gaming Control Board — Internet Gaming Rules (R 432.633b) |
| Ontario (Canada)Current · 100%high-confidence | No minimum No statutory minimum RTP. The AGCO's Registrar's Standards for Internet Gaming govern game integrity through RNG and fairness requirements rather than a payout floor. | Required Operators must give players comprehensive, accurate information on the terms of play, including the odds of winning, payout odds or returns to players, and the game specification must document the operator's advantage for each wager. | — | AGCO — Registrar's Standards for Internet GamingAGCO — Registrar's Standards for Internet Gaming (full text) |
13 of 35 tracked jurisdictions researched so far — the rest are being added, each verified against its primary source before it appears here. Of the 13, 3 set a statutory minimum RTP; the remainder rely on random-number-generator certification and fairness rules instead.
Reading these rows honestly
Two cautions. First, “no minimum” is not “no protection”: a regime with certified randomness and enforced fairness can be stricter in practice than one that fixes a low floor and checks little else. Second, a displayed return is a theoretical, long-run figure — a property of the game’s mathematics, not a promise about any session. What that number means, and how it is checked, is the subject of the earlier chapters in this path.
Common questions
Is there a legal minimum RTP for online slots in the UK?
No. The UK Gambling Commission sets no minimum return-to-player for online slots or casino games. Its Remote gambling and software technical standards regulate fairness and randomness — outcomes must be acceptably random, games must run as their rules describe, and results must be clearly shown — but nowhere fix a minimum payout percentage. Several other regimes work the same way, relying on random-number-generator certification rather than a floor.
Which jurisdictions actually set a minimum RTP?
A minority. Among the regulators researched here, Italy sets a 90% floor for licensed online slots (per game title), New Jersey sets 83% for slot machine games offered online, and Michigan sets 80% for house-banked internet games. The United Kingdom, Malta, Denmark, Sweden, Spain, Portugal, Romania, the Netherlands, Germany and Ontario set no statutory minimum RTP at all — they regulate fairness, RNG certification and, in several cases, disclosure instead.
Sources (5)
- UK Gambling Commission — RTS 7: Generation of random outcomesgamblingcommission.gov.uk
- Spillemyndigheden — SCP.07.03 Requirements for games (online casino)spillemyndigheden.dk
- Orden HAP/1370/2014 — Spanish basic regulation for games-of-chance machines (BOE)boe.es
- N.J.A.C. 13:69E-1.28A — New Jersey slot machine minimum theoretical payoutlaw.cornell.edu
- Glücksspielstaatsvertrag 2021 — §22a (average payout-ratio display), GGLgluecksspiel-behoerde.de
Education, not advice. This chapter explains how return-to-player is defined, computed and checked so you can read the number honestly. It is not a system, and nothing here treats gambling as a way to make money — over enough play the mathematics favours the house. 18+.
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