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Reference last reviewed 27 October 2026

Marketing and affiliates

How affiliate deals work

Revenue share, cost per acquisition and hybrid deals, plus the clauses that decide who actually carries the risk.

Reading time 8 minutesLast reviewed 27 October 2026

Affiliates are publishers paid by results. They write comparison pages, run betting media, publish reviews and bonus listings, and send readers to operators through tracked links. When a reader registers and plays, the affiliate is paid.

The arrangement is older than online gambling and more consequential than it looks, because in several markets affiliates are now licensed in their own right, and the advertising rules that bind operators bind them too.

The three deal structures

The standard affiliate arrangements
StructureHow the affiliate is paidWho carries the risk
Revenue shareA percentage of the net revenue the referred players generate, usually for their lifetimeShared: the affiliate earns nothing if the player does not lose
Cost per acquisitionA fixed fee per player who registers and meets a qualifying conditionThe operator: it pays whether the player is valuable or not
HybridA smaller fee per acquisition plus a smaller revenue shareShared, with the affiliate taking some cash early

Which structure an affiliate prefers says a lot about its traffic. An affiliate confident that its readers are long-term players takes revenue share, because the lifetime value exceeds any realistic fee. An affiliate whose traffic converts once takes cost per acquisition. Operators, naturally, prefer the opposite in each case, and the negotiation is largely about who is better informed.

The clauses that decide everything

  • Negative carryover. If referred players win in a month, does the affiliate's negative balance carry into the next month or reset? With carryover, one large winner can wipe out an affiliate's income for months. It is the most contested term in the industry.
  • Deductions. What comes off before the share is calculated: bonuses, gambling tax, payment fees, chargebacks and in some agreements an administrative charge. The headline percentage means little until this is defined.
  • Attribution window. How long after a click a registration still counts, and what happens if the player clicked through two affiliates.
  • Qualifying player. For cost-per-acquisition deals, what the player must actually do: deposit a minimum, stake it, or remain active for a period.
  • Term and tail. What happens when the agreement ends. Does the affiliate keep earning from players already referred, or does the revenue stop?

Why affiliates are now licensed

For most of the industry's history affiliates were unregulated intermediaries. Several markets have changed that, on the straightforward argument that an affiliate page promoting gambling is advertising, and advertising rules are meaningless if they stop at the operator.

Romania requires affiliates to hold a Class 2 licence, and publishes the list. Other markets reach the same place differently: by making the operator responsible for everything its affiliates publish, which has produced a compliance regime in which operators audit affiliate pages and terminate partners over wording.

The practical result is that a single affiliate page cannot be served to every country. Bonus terms that are legal in one market are prohibited in another, and in markets with advertising bans the page cannot exist at all.

How the business has changed

Classic affiliate economics depended on search visibility for commercial queries, which was never under the affiliate's control. Search algorithm changes have repeatedly removed large portions of the revenue of companies that did nothing wrong, and the structural response has been to buy audiences rather than rent them.

That is why the largest listed affiliates have moved into owning sports media with direct readerships, where gambling monetisation sits behind editorial rather than in front of it. It is more defensible and far more expensive, and it changes the business from publishing comparison tables to running a newsroom.

The newer pressure is that acquisition costs rise as a market matures. In a market that has just opened, every customer is new; five years later, most customers already have accounts, and the affiliate is being paid to move someone between operators rather than to introduce them to the category.

Questions and answers

Are affiliate reviews independent?

They are commercial. An affiliate is paid by the operators it lists, which does not make the information wrong but does mean the ranking reflects commercial terms as well as merit. Several advertising codes now require the relationship to be disclosed.

What is negative carryover?

A term under which a month in which referred players won more than they lost leaves the affiliate with a negative balance carried into the following month. Agreements without it reset to zero each month, which is substantially more favourable to the affiliate.

Do affiliates need a licence?

In some markets, yes. Romania licenses them directly. In others the obligation is indirect but real, because the operator is answerable for what its affiliates publish and will enforce compliance through the agreement.

Why do affiliate sites disappear from search results?

Because their visibility depends on ranking they do not control, and gambling queries are among the most heavily contested and most frequently re-ranked. It is the central business risk of the model.

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In the reference

Affiliate and media

Better Collective

The largest listed gambling affiliate, which has moved from comparison sites into owning sports media outright.

Affiliate and media

Catena Media

A Malta-based affiliate group that concentrated on the United States as European search traffic became harder to hold.

Affiliate and media

Gambling.com Group

A listed affiliate group built around a small number of high-value domains.

Market profile

Romania

One of the few markets that licenses affiliates and payment providers, not only operators and suppliers.