Affiliate Program: How It Works, Commissions, and Payouts
An affiliate program pays a promoter a commission for a qualifying referral, such as a purchase, lead, registration, or another trackable action, as explained in the IAB Australia affiliate marketing handbook. The program’s written rules determine which actions qualify, how they are credited, and how commissions are paid.
What an affiliate program includes
The IAB handbook’s glossary identifies the merchant as the business with an affiliate program and the affiliate, or publisher, as its promoter; an affiliate network connects the two and handles tracking and commission payments.
Affiliate marketing is the promotional activity, while a program’s agreement governs participation and payments: the Amazon Associates operating agreement, for example, specifies tagged links and makes payment subject to its qualifying-purchase policies.
Shopify’s comparison of referral and affiliate marketing distinguishes customer referral programs, which encourage existing customers to recommend a business to personal contacts, from affiliate programs, which recruit promoters such as publishers and creators with an audience. The distinction concerns who promotes the business and how rewards work, rather than the tracking link alone.
How an affiliate program works
The process moves from enrollment to promotion, tracking, validation, and payment:
- Apply to the program. The merchant reviews the application and decides whether to accept it; Shopify’s enrollment guidance describes this review and the acceptance notification.
- Obtain a tracking link. After acceptance, Shopify directs affiliates to create a referral link in Impact, the platform hosting its program.
- Publish the promotion. Affiliate content can include blog posts, videos, social posts, and product roundups with tracking links, according to Shopify’s affiliate marketing explanation.
- Record the referral. In Rewardful’s documented workflow, a link click or coupon use records the referral; a valid signup or purchase is then attributed to the affiliate.
- Validate and pay the commission. The merchant reviews commissions, and funds become available after approval and funding, as the PartnerStack payment guide explains.
These stages answer different questions: enrollment establishes participation, tracking assigns credit, review determines payment eligibility, and payout delivers the approved funds.
What earns a commission?
The IAB handbook describes payments based on qualifying actions, using either a fixed fee per action or a share of the purchase price.
| Commission model | How earnings are calculated |
|---|---|
| Fixed fee | A stated amount per qualifying action, such as a registration, under the IAB handbook’s flat-rate model. |
| Revenue share | A percentage of the qualifying purchase value, under the IAB handbook’s revenue-share model. |
| Recurring commission | Eligible customer payments generate commissions over a defined period; HubSpot’s published offer provides a monthly recurring example. |
The revenue base matters as much as the rate. Under Amazon’s U.S. commission income statement, standard commission is a percentage of qualifying revenue, which excludes items including shipping charges, taxes, credits, and rebates. The amount paid for the whole order therefore need not be the amount used to calculate commission.
Recurring does not necessarily mean unlimited. HubSpot advertises a 30% monthly recurring commission for up to one year, together with a 180-day cookie window. Those are the published terms of that particular program, rather than a general commission rate or duration.
Product and customer eligibility can narrow an offer further. Webflow’s affiliate overview limits qualifying purchases to a new customer’s first eligible Site or Workspace subscription and excludes Enterprise plans, templates, add-ons, additional seats or bandwidth, and apps.
For a percentage commission, the calculation is eligible revenue × commission rate. For a fixed fee, it is approved qualifying actions × fee per action. These calculations describe commission entitlement before any applicable reversals or payout deductions; they do not predict how many qualifying referrals will occur. The Amazon Associates agreement explicitly makes no guarantee about expected traffic or commission income.
How tracking windows and attribution affect credit
Rewardful’s campaign settings describe a cookie window for tracking a referred visitor, configured separately from the maximum number of commission-generating payments and the maximum commission period.
Rewardful supports first-touch and last-touch attribution: first-touch credits the first affiliate link clicked, while last-touch credits the most recent affiliate link clicked before the referral is created.
A tracking window and a recurring commission period govern different events. In HubSpot’s published offer, the 180-day window concerns referral tracking, while the one-year limit concerns recurring commissions. A long recurring period does not extend the initial tracking window.
Tracking also depends on the program’s implementation. Webflow warns that cleared cookies can prevent referral tracking and that a purchase outside its designated cookie window is ineligible, even when the customer eventually buys.
Why a referral may not qualify
A recorded referral must still satisfy the program’s eligibility and promotion rules. Published exclusions include:
- An ineligible customer. Webflow excludes pre-existing customers and prospects already in its active sales process, and its affiliate program excludes client referrals.
- A self-referral. Rewardful’s own affiliate terms make self-referrals ineligible and prohibit using the program for purchases by the affiliate or businesses under common ownership.
- A canceled or returned purchase. Amazon’s commission income statement disqualifies product orders when a cancellation, return, or refund has been initiated.
- A prohibited promotional method. Rewardful’s affiliate terms prohibit using its affiliate links in paid media and list restrictions on brand-keyword bidding and manipulating tracking cookies.
A reversal can also affect a commission already paid. Under Rewardful’s refund terms, a refunded purchase earns no payable commission; an amount already paid is adjusted against the next payout or must be repaid under the stated conditions.
These restrictions belong to the cited programs. Eligibility, permitted channels, and refund treatment must be checked in the agreement for the program being evaluated.
When commissions become money available to withdraw
The PartnerStack payment guide distinguishes several commission states:
| Status | Meaning in PartnerStack |
|---|---|
| Pending approval | The program has not yet approved the commission. |
| Approved and pending payment | The program has approved it but has not yet funded it. |
| Funds available | The program has paid, and the affiliate can withdraw the funds. |
| Withdrawn | The affiliate has withdrawn the commission through the selected payment provider. |
A program can also impose a waiting period and payout threshold. Rewardful allows separate settings for days before commissions become due and the minimum payout balance, so the transaction date alone does not establish a payment date.
Payment schedules differ between programs. Amazon’s U.S. commission income statement specifies payment approximately 60 days after the end of the month in which commission was earned, subject to its payment conditions.
PartnerStack’s withdrawal rules require completed tax information and at least $5 USD after fees; an approved commission can remain unavailable while the merchant’s payment is pending.
How to join and compare affiliate programs
Entry requirements depend on the program. Shopify lists an active website, an established audience, original content, and relevant commerce experience among its application requirements. The Amazon Associates agreement permits participation through properties including websites, social media content, and online applications. A website requirement in one program does not establish the requirement for every other program.
Joining and generating income are separate matters. Shopify states that its affiliate program is free to join; that statement concerns enrollment, rather than the cost of producing or distributing promotional content.
When comparing offers, record the answers to these questions from each program’s current terms:
- Which customer action earns a commission: a lead, registration, purchase, or renewal?
- Which products, customers, and revenue components qualify?
- Is the commission fixed, a percentage, recurring, or limited to certain payments?
- What tracking window and attribution rule apply?
- Which promotional channels and uses of the brand are permitted?
- How are cancellations, refunds, and commissions already paid handled?
- What approval delay, payment schedule, minimum balance, and withdrawal requirements apply?
The answers define the offer that can actually be compared. A headline percentage by itself leaves the qualifying event, eligible revenue, and payment conditions unresolved.
Affiliate disclosures
Where U.S. endorsement rules apply, the Federal Trade Commission’s affiliate guidance calls for clear, conspicuous disclosure close to the recommendation, explaining that purchases through the links can earn the publisher a commission.
The FTC cautions that “affiliate link” alone may not convey the payment relationship and explains that separating a review’s disclosure from its link can prevent readers from connecting the two.
Program rules can add their own disclosure wording. The Amazon Associates agreement requires the statement “As an Amazon Associate I earn from qualifying purchases.” or a substantially similar statement previously allowed under the agreement. This is Amazon’s participation requirement; the FTC guidance addresses disclosure of the paid relationship to consumers.