Every licensed market requires harm-prevention measures, and almost every operator describes itself as committed to them. The commitments are not the interesting part. The design is, because measures that sound similar differ enormously in whether they actually bind anyone.
The useful distinction is between a tool, which a customer must choose to use, and an obligation, which applies whether anyone chooses it or not.
Tools the customer chooses
- Deposit, loss and stake limits. Set by the customer, usually with an immediate effect when lowered and a delay when raised. The delay is the part that matters.
- Session limits and reality checks. Reminders of elapsed time and, in some markets, of net position during a session.
- Time out. A short break, from a day to several weeks, after which the account reopens automatically.
- Self-exclusion. A longer and usually irreversible closure, ranging from six months to permanent.
The limitation of tools is in the name. They are used by people who are already concerned about their play, which is useful but does not reach those who are not. Research on uptake consistently finds low usage unless the tool is presented at a moment of friction rather than buried in account settings, which is why several markets now require a deposit limit to be set during registration.
Exclusion registers
Operator-level self-exclusion has an obvious weakness: it closes one door in a corridor. National registers close the corridor.
| Register | Market | Notable feature |
|---|---|---|
| Spelpaus | Sweden | Covers all licensees and blocks direct marketing as well as play |
| ROFUS | Denmark | Fixed periods or permanent; checked before a stake is accepted |
| Cruks | Netherlands | Can be triggered by a relative or by the regulator, not only the customer |
| OASIS | Germany | Covers online and land-based gambling together |
| GAMSTOP | Great Britain | Covers all licensed online operators |
| BetStop | Australia | National register for licensed online wagering, live since 2023 |
Obligations that apply regardless
The more recent development is the shift from providing tools to imposing duties, and it is where most enforcement activity now sits.
Duty of care. Sweden and several other markets require operators to act on indications of harm rather than wait for a customer to ask for help. The obligation is open-ended by design, and supervision cases turn on whether the operator did anything at all once its own systems had flagged a customer.
Affordability and financial risk checks. Checks triggered by losses over a defined period, intended to establish that a customer can sustain them. Britain has moved this from each operator's discretion to a defined basis, and the practical overlap with anti-money-laundering source-of-funds work is almost total. That overlap is described here.
Default limits. Germany enforces a cross-operator monthly deposit limit through a central system, so the limit follows the customer rather than the account. Belgium applies default weekly deposit limits unless further checks are passed. These are the strongest form of the measure, because they do not depend on anyone choosing anything.
Product constraints. Stake caps, minimum spin duration, prohibition of autoplay and of bonus-buy features, all of which limit speed of loss. These arrived from machine regulation.
What the evidence supports
The honest summary is that the evidence base is thinner than the volume of policy suggests. A few findings recur across studies and are worth stating plainly.
- Limits set in advance are more effective than warnings delivered during play.
- Friction at the moment of escalation, such as a delay before a limit increase takes effect, has more measurable effect than information alone.
- National registers work considerably better than operator-level exclusion, which is routinely circumvented by opening an account elsewhere.
- Measures that depend on the customer identifying their own problem reach only those who already have.
The funding of research is itself a contested question, which is why several markets have moved from voluntary industry contributions to a statutory levy.