What is Affiliate Marketing?
Affiliate marketing is a performance-based model where content creators, publishers, or websites (affiliates) earn a commission each time they drive a sale, lead, or click to a merchant through a unique tracking link.
Affiliate marketing is a performance-based marketing arrangement in which a business (the merchant) pays external partners (affiliates) a commission for driving specific actions — typically sales, leads, or clicks — through unique tracking links.
Affiliates promote a merchant's products through their own channels — a website, blog, social media, email list, or YouTube channel — and earn money only when their promotion results in a defined outcome. The merchant pays for results, not impressions or effort.
How Affiliate Marketing Works
The four main players:
- Merchant (Advertiser) — The business selling the product or service
- Affiliate (Publisher) — The partner who promotes the product
- Affiliate Network / Platform — Technology that tracks referrals and manages payments (e.g., ShareASale, CJ Affiliate, Impact, Amazon Associates)
- Customer — The person who clicks the affiliate link and makes a purchase
The process:
- Merchant creates an affiliate program with defined commission rates
- Affiliate joins the program and receives a unique tracking link
- Affiliate publishes content that includes the tracking link
- Customer clicks the link, is cookied, and (hopefully) makes a purchase
- The platform attributes the sale to the affiliate and pays the commission
Types of Affiliate Commissions
- Pay per sale (PPS) — Commission on completed purchases; most common structure
- Pay per lead (PPL) — Commission for generating a lead (form submission, free trial sign-up)
- Pay per click (PPC) — Commission for each click, regardless of conversion (less common)
- Recurring commissions — Ongoing percentage of subscription revenue for the life of the customer; common with SaaS products
Commission rates vary widely: Amazon Associates pays 1–10% depending on category; SaaS products often pay 20–40% of monthly recurring revenue; financial products can pay flat fees of $50–$200+ per lead.
Affiliate Marketing vs. Influencer Marketing
| Affiliate Marketing | Influencer Marketing | |
|---|---|---|
| Compensation | Commission on results | Usually flat fee or product |
| Tracking | Unique tracked links | Often indirect |
| Relationship | Often ongoing, independent | Often campaign-based |
| Content type | Reviews, SEO content, email | Social posts, stories, video |
The lines often blur — many influencer marketing deals include affiliate components, and many affiliates function like influencers.
For Affiliates: How to Succeed
- Relevance — Promote products that genuinely match your audience's interests and needs
- Trust — Audiences can tell when recommendations are purely monetary; authentic endorsement converts better (see social proof)
- SEO content — Product reviews and comparison articles that rank in search generate passive affiliate income
- Disclosure — The FTC requires disclosure of affiliate relationships; failure to disclose undermines trust and is legally required
For Merchants: Running an Affiliate Program
Running an affiliate program requires competitive commission rates, quality creative assets, reliable tracking, and timely payments. Affiliates choose programs based on commission size, conversion rate of the landing page, and the quality of the product (which reflects on their recommendation).
Affiliate marketing is among the most cost-efficient acquisition channels for merchants because customer acquisition cost (CAC) is variable — you only pay when affiliates deliver results. The risk shifts to the affiliate's time and promotional investment.