A sub-affiliate is an affiliate marketer who joins an operator's or affiliate network's program after being referred by another, already-established affiliate, creating a second-tier referral relationship in which the referring affiliate typically earns an additional override commission based on the sub-affiliate's own performance.
Definition
A sub-affiliate is an affiliate marketer who joins an operator's or affiliate network's program after being referred by another, already-established affiliate, creating a second-tier referral relationship in which the referring affiliate typically earns an additional override commission based on the sub-affiliate's own performance. This structure allows experienced affiliates to build passive income streams by recruiting and mentoring newer affiliates into the same programs they use.
In context
Mechanically, when an affiliate refers a new marketer to a program (often through a special sub-affiliate or "master affiliate" tracking link), that new marketer's account is linked in the operator's system as a sub-affiliate under the referring affiliate. The sub-affiliate then operates their own independent campaigns, generates their own FTDs and NGR, and earns their own standard commission - but a percentage of that sub-affiliate's earnings (commonly 2% to 10%) is additionally credited to the referring "master" affiliate as an override, without reducing what the sub-affiliate themselves earns.
This two-tier (sometimes multi-tier) commission structure is most common among larger affiliate networks, super-affiliates, and communities that actively recruit new marketers, such as iGaming affiliate forums, training programs, or agencies that build out networks of smaller publishers under their umbrella. Some programs cap the number of tiers at two to prevent pyramid-like structures, while others allow deeper multi-level referral chains, though regulatory scrutiny around multi-level marketing structures has made many operators cautious about extending beyond a simple two-tier model.
Sub-affiliate programs are important in iGaming because they incentivize experienced affiliates to actively grow the overall size and quality of an operator's affiliate network, effectively turning successful affiliates into informal recruiters and community builders, which benefits operators by expanding their reach without direct marketing spend. For affiliates, sub-affiliate income can become a meaningful passive revenue stream over time, particularly for those who have built audiences, communities, or educational content around affiliate marketing itself.
A common pitfall is affiliates aggressively recruiting sub-affiliates without providing adequate mentorship or quality control, leading to low-quality or even fraudulent traffic being introduced into the operator's network under their referral, which can damage the master affiliate's reputation and standing with the operator. Best practice involves selectively recruiting sub-affiliates whose methods align with compliance requirements, since poor sub-affiliate behavior can result in the master affiliate's own account being penalized.
Worked example
You refer another affiliate who earns €5,000/month. With a 5% sub-affiliate deal, you earn €250/month passively.
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