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.

35 of 35 tracked jurisdictions researched — each verified against its primary source before it appeared here. Of the 35, 7 set a statutory minimum RTP; most of the rest set no floor and rely on random-number-generator certification and fairness rules instead, while 6 have no lawful online-casino product to set a floor under at all — whether because online casino is prohibited, not yet licensed, or simply not offered.

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

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+.