An affiliate is a person or company connected to another through a formal relationship, usually involving either partial ownership or a revenue-sharing arrangement. The word shows up in two very different worlds: corporate business, where it describes a company partially owned by a larger one, and digital marketing, where it refers to someone who earns a commission by promoting another company’s products. Both meanings share the same core idea of a structured partnership where one party benefits from the other’s reach or resources.
Affiliate in the Corporate Sense
In business and accounting, an affiliate is a company in which a parent company owns between 20% and 50% of the shares. That ownership level gives the parent “significant influence,” meaning it has a say in certain decisions but does not outright control the company. The affiliate still runs its own operations, sets its own direction, and generally chooses its own board of directors. The parent’s stake is large enough to matter but not large enough to dictate.
This is different from a subsidiary, where the parent company owns more than 50% and has controlling interest. A subsidiary essentially answers to the parent. An affiliate has more independence. On the accounting side, affiliates are tracked using what’s called the equity method, which means the parent records its share of the affiliate’s profits and losses on its own financial statements rather than combining the two companies’ books entirely.
You’ll see this structure when large corporations invest in smaller companies without wanting to absorb them completely. It lets the bigger company benefit from the affiliate’s growth while leaving it room to operate on its own terms.
Affiliate in Digital Marketing
The more common everyday meaning of “affiliate” refers to affiliate marketing, a model where a person or company earns a commission by sending customers to another business. If you’ve ever clicked a link in a blog post or YouTube video description and ended up on a product page, that was likely an affiliate link. The person who posted it earns money when you take an action, whether that’s buying something, signing up, or sometimes just clicking.
Affiliate marketing programs are run by retailers, software companies, subscription services, and thousands of other businesses. The affiliate (sometimes called a publisher or partner) promotes the product using a unique tracking link. When someone uses that link and completes the desired action, the affiliate gets paid. It’s essentially a performance-based referral system.
How Affiliates Get Paid
Not all affiliate programs pay the same way. The compensation model depends on what the business values most, whether that’s a completed sale, a new lead, or simply website traffic.
- Pay-per-sale: The affiliate earns a commission when someone clicks their link and makes a purchase. This is the most common model. Commission rates vary widely, from a few percent on physical products to 30% or more on digital products and software.
- Pay-per-lead: The affiliate earns money when a visitor fills out a form, signs up for a free trial, or provides contact information. The business then follows up with the lead directly. This model is common in industries like insurance, real estate, and financial services.
- Pay-per-click: The affiliate earns a small amount each time someone clicks their link, regardless of whether a purchase happens. The payout per click is typically just a few cents, so this model depends on high traffic volume.
- Pay-per-impression: The affiliate earns based on how many times an ad is displayed, measured per thousand views (often called CPM). No click or purchase is required.
- Recurring commissions: Some programs pay the affiliate not just for the initial sale but for ongoing revenue from that customer. If you refer someone to a subscription service, you might earn a percentage of their monthly payment for as long as they remain a subscriber.
Some programs also use a two-tier structure, where an affiliate recruits other affiliates beneath them and earns a smaller commission on their referrals as well. This rewards affiliates who build out their own network of promoters.
FTC Rules for Disclosing Affiliate Links
If you’re an affiliate promoting products in the United States, the Federal Trade Commission requires you to tell your audience about the financial relationship. Readers and viewers need to know you’re earning money from your recommendations so they can weigh your endorsement accordingly.
The disclosure has to be clear and conspicuous. A simple statement like “I get commissions for purchases made through links in this post” works. Placing the words “paid link” directly next to an affiliate link is also acceptable. The key is that the disclosure appears close to the recommendation itself. Burying it at the bottom of a page or hiding it behind a separate link doesn’t meet the standard.
Notably, the FTC has said that the phrase “affiliate link” alone may not be enough, because many consumers don’t know what that term means. Similarly, “commissionable link” and generic “buy now” buttons don’t count as adequate disclosures. The language needs to make the financial relationship obvious to an average reader without requiring them to know marketing jargon.
Where You’ll See the Word Used
Beyond corporate ownership and online marketing, “affiliate” appears in a few other contexts. Local TV stations are often affiliates of a major network, meaning they carry that network’s programming under a licensing agreement while operating independently. Universities sometimes have affiliated hospitals or research centers that maintain their own leadership but share resources and branding. Membership organizations use the term for local chapters connected to a national body.
In every case, the underlying meaning stays the same: two entities that are formally linked but remain distinct. One is not owned outright by the other, and both retain some degree of independence. The specific terms of the relationship, whether it involves shared revenue, partial ownership, or a content agreement, vary depending on the industry.