Affiliate Agreements: What to Read Before You Sign

Most affiliate agreements are accepted the way most software terms are accepted: a checkbox, a click, and a signup form that opens two minutes later. That habit is fine for a free trial. It is a real liability in a contract that assigns you, personally or as a business, the compliance obligations of an advertiser — the UK's own advertising code states outright that its gambling marketing rules bind "third parties (for example, affiliate marketers) acting on an advertiser's behalf," under CAP Code Section 16. The contract you click through is where those obligations, and several purely commercial ones, actually get defined. Seven clauses decide almost everything about how a deal performs. Here is what each one says, and what to ask before you sign.

Read them in this order, not the order the document presents them in: the two that determine whether you get paid at all (termination and negative carryover) before the ones that shape how much (bundling, exclusivity), and the ones that shape how much before the ones that determine what happens when something goes wrong (clawbacks, disputes). A contract read top to bottom, in the drafter's order, tends to bury the clause that matters most under several pages of boilerplate that matters far less.

Negative carryover

This clause decides whether a losing month for the operator becomes a debt against your future commission. Without a "no negative carryover" clause, a month where referred players collectively win more than they lose can leave your revenue share balance negative, and that negative balance is then deducted from the next month's earnings before you see a payment — potentially for several months running. The mechanics and a full worked example are in our dedicated piece on this single clause; the point here is narrower: read this clause before any other, because it is the one most likely to turn a good-looking revshare percentage into a much worse effective return.

Termination and payment-on-termination

Two separate questions live inside this clause. First: on what notice, and for what cause, can either party end the agreement? A termination clause that lets the program end the relationship "for any reason, immediately" is common and not automatically a red flag — but it changes how much you should invest in content specific to that one program. Second, and more important: what happens to commission already earned but not yet paid at termination? A clause that says outstanding commission is forfeited on termination is materially different from one that says it is paid out on the normal schedule regardless of why the relationship ended. Ask this question directly if the agreement does not answer it in writing.

Bundling

Bundling determines whether your commission is calculated on the specific brand you promoted, or pooled across a wider group of brands the same program operates. A program that bundles revenue across several skins under one licence can smooth your income (a bad month on one brand offset by a good month on another) but it also makes it much harder to see which of your specific content pieces is actually earning, because the number you receive is an aggregate. Ask whether reporting is available at brand level even when payment is bundled — the two are separable, and a program that bundles payment but still reports at brand level gives you the visibility without losing the smoothing.

Exclusivity

An exclusivity clause restricts which other programs you may promote, sometimes narrowly (not the operator's own competing brands) and sometimes broadly (nothing in the vertical at all). Exclusivity is occasionally traded for a materially better commission tier, which can be a fair exchange — but only if you have modelled what you give up. Before agreeing to exclusivity, check it against the comparison in our revshare vs CPA vs hybrid guide: an exclusive deal at a middling tier is frequently worse than a non-exclusive spread across two or three programs at their standard rates.

Geo and traffic-source restrictions

A program's stated markets are not always the full picture — some restrict specific traffic sources (a program permitting search and content but prohibiting paid social, for instance) independent of geography. Both restrictions are usually enforceable retroactively: traffic sent from a restricted geography or source can be excluded from commission after the fact, sometimes for the whole reporting period rather than just the affected clicks. Get the restriction list in writing before building content or a campaign aimed at a specific market or channel, not after.

High-roller and fraud clawback clauses

Most agreements reserve the right to exclude or claw back commission on players flagged as fraudulent, self-excluded, or — less obviously — unusually high-value in a way the program did not expect and does not want to pay full revenue share on. This last category is the one worth asking about directly: some programs cap payable revenue share per player, or reserve discretion to reclassify an outsized winning or losing player after the fact. A clause with no defined threshold and unlimited retroactive discretion is a meaningfully different risk from one with a stated cap.

Dispute process

When a program's reporting and your own tracking disagree — which happens, and is one of the diagnostic paths in our piece on tracking discrepancies — the agreement should say how that gets resolved: a stated evidence standard, a response time, and an escalation path beyond your day-to-day account manager. An agreement silent on dispute process leaves you dependent entirely on goodwill when the numbers do not match.

A workable dispute clause names three things: what counts as evidence (your own click logs with timestamps and country data are the usual standard), how long the program has to respond once evidence is submitted, and who decides if the two sides still disagree after that. The absence of the third element is the most common gap — many agreements describe a process for raising a dispute and say nothing about what happens if the first response does not resolve it.

How to redline, practically

Most affiliate program agreements are not negotiated line by line the way an enterprise contract is — but the clauses above are still worth raising as questions even where the printed terms are non-negotiable. Ask in writing, keep the written answer, and treat a program that will not answer a direct question about carryover, termination payment, or clawback discretion as itself an answer. The account-manager relationship these questions run through is covered in working with your affiliate manager; the tax and invoicing side of a signed agreement is in getting paid, taxes and invoicing.

Keep the written answers somewhere durable and dated, separate from the email thread they arrived in — a folder of "confirmed by X on this date" notes, one per program, turns seven abstract clauses into seven concrete facts you can act on the next time a payment looks wrong or a program changes its terms without telling you first.

FAQ

Are affiliate program terms usually negotiable?

Rarely line by line for a new affiliate, but the terms that gate commission tiers or exclusivity sometimes are once you have a track record. Asking costs nothing; assuming the printed terms are final before asking closes a door that may not have been locked.

What is the single clause most affiliates never actually locate in their own agreement?

Payment-on-termination. Most affiliates can quote their commission percentage from memory and cannot say what happens to an outstanding balance if either side ends the relationship tomorrow.

Does a program's published commission rate override anything in the signed agreement?

No — the signed agreement, not the marketing page, is what governs. A commission rate advertised publicly is a claim; the agreement is the enforceable term, and the two occasionally differ for a specific account.

What to do this week

• Pull up the agreement for your highest-earning current program and find the carryover, termination-payment and clawback clauses specifically — most affiliates have never located all three.
• Send one written question to a program manager about whichever of the seven clauses above your current agreement leaves vaguest.
• Before applying to a new program, add these seven questions to whatever notes you keep during the application process, so the answers exist before you sign, not after a dispute.