What Is Negative Carryover?
Of all the fine print in an iGaming affiliate deal, one clause does more quiet damage than any other: negative carryover. It's the reason an affiliate can send great traffic, see a healthy dashboard, and still get paid almost nothing. Understanding it is the single highest-leverage thing you can learn as an affiliate.
The one-sentence version
Negative carryover means that when your players have a winning month — when the casino loses money on them — that negative balance is carried into your next month and deducted from your revenue share.
Because RevShare pays you a percentage of Net Gaming Revenue (NGR) — roughly what players lose — a big player win pushes your NGR negative. With negative carryover, you don't just earn zero that month; you start the *next* month in the hole.
A worked example
Say you're on 40% RevShare.
- Month 1: your players lose €10,000 net. Your NGR is +€10,000, you earn €4,000. Great.
- Month 2: one player hits a big win. Your players are up €8,000 net. Your NGR is −€8,000. You earn €0.
- Month 3: your players lose €10,000 again. NGR +€10,000 — but the −€8,000 carried over from Month 2 is subtracted first. You're paid on just €2,000 → €800, not €4,000.
That one lucky player didn't just cost you Month 2 — it cost you most of Month 3 too. No negative carryover would have reset Month 2 to zero, and Month 3 would have paid the full €4,000.
Negative carryover quietly transfers the variance of gambling from the operator to you. A single high-roller's good run becomes *your* problem for weeks.
Why networks use it (and why it's not in your favour)
Operators argue it "shares the risk." In practice, the operator has thousands of players and can absorb variance across all of them; you might have a few dozen, so a single win hits you far harder. The clause pushes the house's natural variance onto the affiliate — the party least able to absorb it.
That's why the presence or absence of this one line separates deals that compound from deals that claw back.
How to avoid it
- Ask directly: "Is there negative carryover?" The answer should be a clear no.
- Get it in writing before you send a single click.
- Prefer "no negative carryover" + lifetime RevShare together — the combination is what lets your earnings actually accumulate.
- Watch related clauses: time-capped RevShare and heavy NGR deductions do similar damage. (More in CPA vs RevShare vs Hybrid.)
What good looks like
A deal built for affiliates removes this trap entirely: no negative carryover, so a losing month closes at zero and never follows you — plus lifetime revenue share and sub-affiliate income on top. That's the standard iGaming Gods writes into its terms, with a real-time dashboard so you can verify every number yourself.
FAQ
What is negative carryover in simple terms?
When your referred players have a winning month, your revenue share goes negative for that period. With negative carryover, that negative balance is pushed into next month and subtracted from your earnings — so one lucky player can wipe out weeks of income.
Is negative carryover normal?
It's common, but it's not in your favour. Better networks offer "no negative carryover," which resets your balance to zero each month so a losing month never follows you.
How do I avoid negative carryover?
Only sign RevShare or hybrid deals that explicitly state "no negative carryover," and confirm it in writing before you send traffic.