This is educational, not legal advice. If a real enforcement question is on the table, talk to a lawyer who knows advertising law. What follows is how the rules actually work, so you can read your own content the way a regulator would.
Most affiliate disclosures fail for the same reason. The creator believes the obligation is to mention the relationship somewhere. The US Federal Trade Commission believes the obligation is to make a hurried, half-distracted reader see it before they act on the recommendation. Those are not the same standard, and the gap between them is where almost every violation lives. A line of small grey text under a fold, an "affiliate link" label nobody parses, a paragraph on an About page no buyer ever opens: all technically present, all worthless under the rule. Getting disclosure right is not about adding words. It is about understanding what the words are for.
Origin: how a 1980 guide ended up policing your link
The FTC has guidance for endorsements going back to 1980. For most of that era it covered television testimonials and magazine quotes, and it sat quietly. The internet broke its assumptions. In October 2009 the FTC revised the Endorsement Guides for the first time in nearly three decades, and the headline change was that a blogger who got paid or got a free product to review something was now, plainly, making an endorsement that had to be disclosed. The 2009 revision also stated that endorsers themselves, not only advertisers, could be liable for what they said and for failing to disclose a material connection.
That phrase, material connection, is the hinge of the whole subject. A material connection is any relationship between the endorser and the seller that an audience would not reasonably expect and that could affect how much weight they give the endorsement. Money is a material connection. So is a free product, a commission on a sale, a discount code that pays you, a family tie, an employment relationship, even free entry into a giveaway. If your audience knew about it, some of them would trust the recommendation less. That is the test. An affiliate link is a textbook material connection, because you earn money when the reader buys, and the reader has no way to know that from the link alone.
The Guides live at 16 CFR Part 255. They are formally guides, not a statute, which matters for how penalties work, and we will come back to that. The important thing about the origin is the direction of travel. Each revision has pushed the same way: more formats covered, less tolerance for disclosure that is present but easy to miss.
The 2023 rewrite: present but missable is now a violation
In June 2023 the FTC announced the most substantial update to the Endorsement Guides since 2009, effective that July. It did several things at once, and affiliates and creators should know all of them.
First, it wrote a definition of clear and conspicuous into the Guides. A clear and conspicuous disclosure is one that is difficult to miss and easily understandable by ordinary consumers. For anything other than plain text it spells out the components: a visual disclosure must stand out and stay on screen long enough to be read, an audio disclosure must be at a volume and pace an ordinary listener can follow, and a disclosure must use the same language as the content it sits in. The single most useful line for an online creator is the requirement that the disclosure be unavoidable.
Second, it expanded what counts as an endorsement and an endorser. The Guides now acknowledge that a tag or a like can be an endorsement depending on context, and that the endorser does not have to be a person. A virtual influencer counts. A fake reviewer counts. A bot counts.
Third, it made intermediary liability explicit. Advertising agencies, public relations firms, review brokers and reputation managers can be liable for their own role in creating or spreading endorsements they know or should know are deceptive, or that lack a required disclosure.
Fourth, it added a section on advertising directed at children, flagging endorsements aimed at young audiences as a special concern because children process disclosures differently.
The throughline is the death of a comfortable excuse. Before 2023 a creator could argue that a disclosure existed, somewhere, in some form. The 2023 Guides answer that existence is not the question. Whether an ordinary, distracted member of your audience would actually notice and understand it, before they act, is the question.
Where the disclosure has to sit
The FTC's staff guidance, published as a long question-and-answer document, is blunt about placement, and it is the most practical reading you can do. The governing rule: put the disclosure with the recommendation, close enough that a person taking in one is taking in the other. The closer the disclosure is to the claim, the safer you are.
That rule kills several common habits at once. A disclosure on an About page or a separate disclosure page does not work, because the buyer reading a product recommendation never goes there. A disclosure only in a website footer does not work. A disclosure that a reader has to click "more" to expand does not work, and the FTC says so directly: if a person has to click "more" to see it, it is not clear and conspicuous. A disclosure at the very end of a long post, after the affiliate links the reader already clicked, does not work, because it arrives too late to inform the decision.
Two principles sharpen this. The disclosure should come before the affiliate link, not after it, so the reader knows the nature of the link before they decide to click. And on a page where the link can appear above the fold, the disclosure has to be visible there too, not parked at the bottom where only a reader who scrolls the whole way will meet it. The mental model that keeps you compliant: imagine a reader who lands on your page, reads one paragraph, clicks your link and buys, and never sees anything else. Did that reader know the link pays you? If not, the disclosure is in the wrong place.
Wording that works, wording that fails
Placement is half the problem. The other half is language, and this is where well-meaning creators trip on terms they assume everyone understands.
The FTC's position is that a disclosure has to be understood by ordinary consumers, not by people who work in marketing. By that test, "affiliate link" is a weak disclosure. The agency has said plainly that consumers may not know that "affiliate link" means the person who placed it earns money when you buy through it. To an industry insider it is obvious. To a normal shopper it is jargon. "Commissionable link" is worse, for the same reason. A bare "buy now" button discloses nothing at all.
What works is language that states the commercial relationship in words a stranger cannot misread. "Paid link" placed right next to the link is, in the FTC's own example, an adequate disclosure of what the link is. A short plain sentence works well: a line saying you earn a commission if the reader buys through the links on the page, placed where the reader meets it before the links. For sponsored content rather than affiliate links, "#ad" and "#sponsored" are accepted, while vague tags like "#sp", "#collab", "#ambassador" or "thanks" are not, because an ordinary reader will not reliably decode them. If you got the product free, say it was a gift. If you were paid, say you were paid. The safe wording is always the wording your least sophisticated reader could not misunderstand.
One more rule that catches creators out: each piece of content needs its own disclosure. Followers do not connect a disclosure on Monday's post to Thursday's post. If both contain affiliate links, both need disclosing.
Platform by platform
Disclosure is not one technique, because platforms hide text in different ways. The FTC's guidance is specific.
On a blog or written review, place the disclosure in the body copy, near the top, before the first affiliate link, in text the same size and weight as the surrounding writing. Grey text smaller than the body copy is the classic failure.
In a video, the FTC wants the disclosure in the video itself, not only in the description box, because most viewers never open the description. A spoken disclosure plus on-screen text is strongest, since some viewers watch without sound and some do not register superimposed words. A disclosure that flashes by too fast to read does not count. For a long video with one endorsement deep inside, the disclosure belongs near that segment, not in a wall of description links.
On image-and-story formats like Instagram Stories, superimpose the disclosure on the image and leave it up long enough to read. In short-form vertical video on TikTok and similar apps, the FTC has warned that a disclosure in the text description is very unlikely to be clear and conspicuous: that text is small, low contrast, easy to miss, and competing with other on-screen elements. The fix is the one creators already use when they genuinely want viewers to read something, which is large superimposed text on the video itself.
A specific trap for short captions and hashtag streams: a disclosure buried at the end of a long run of hashtags is not conspicuous, because most readers never reach it. Put the disclosure at the start of the caption, before the platform truncates it behind a "more" link.
And the platform's own built-in tool is not a safe harbor. The 2023 Guides note that a platform's paid-partnership label may not by itself be an adequate disclosure. Treat any built-in toggle as a supplement to your own clear disclosure, never a replacement for it.
Who is liable: both of you
A persistent myth is that disclosure is the creator's problem and the brand is insulated. It is not.
The creator is liable. An endorser can be on the hook for failing to disclose a material connection clearly and conspicuously, and for claiming to have used a product they never touched.
The advertiser is also liable. A brand is responsible for the affiliates and creators it engages, and is expected to have a reasonable program to train them on disclosure and to monitor what they publish. A brand cannot hand creators a brief, look away, and disown the result. The intermediaries in between, the agencies and affiliate networks, carry their own exposure under the 2023 Guides for disseminating endorsements that lack disclosure. Liability is shared down the whole chain, which is why serious affiliate programs now bake disclosure requirements into partner agreements and audit for them.
The real cost of getting it wrong
Here the structure matters. The Endorsement Guides are guides, so they do not by themselves carry a fine. The FTC built a route around that. In October 2021 it sent a Notice of Penalty Offenses to more than 700 large advertisers, agencies and retailers, putting them on notice that specified deceptive endorsement practices are unlawful. Once a company has that notice, it has the actual knowledge the FTC needs, under Section 5(m)(1)(B) of the FTC Act, to sue for civil penalties if it does the thing anyway. The notice turns soft guidance into a hard bill.
The fake reviews question got an even sharper tool. The FTC announced a final Trade Regulation Rule on the Use of Consumer Reviews and Testimonials in August 2024, and it took effect on October 21, 2024. A rule, unlike a guide, carries civil penalty authority on its own. It bans buying or selling fake reviews, including AI-generated ones, bans reviews by company insiders that do not disclose the insider's connection, bans falsely independent company-controlled review sites, bans suppressing honest negative reviews through intimidation or bogus legal threats, and bans buying or selling fake indicators of social media influence such as fake followers. The insider-disclosure piece is the one that overlaps directly with affiliate and creator work: an officer, manager or employee reviewing their own company's product, or a closely tied creator, must make that relationship clear.
The numbers are not symbolic. The FTC's maximum civil penalty for the relevant violations is $53,088 per violation, the 2025 figure, and because the annual inflation adjustment was cancelled for 2026 that same amount carries into 2026. Each non-compliant post or review can be counted as a separate violation, so a campaign of dozens of undisclosed posts scales into real money fast. In December 2025 the FTC sent its first warning letters under the Consumer Review Rule, to ten companies, signaling that the enforcement phase has started rather than the guidance phase.
History fills in what enforcement looks like. The FTC's case against Lord & Taylor centered on a campaign where the retailer paid 50 fashion influencers to post the same dress without disclosing that the influencers had been given the dress and paid. The Machinima case concerned paid YouTube endorsements of the Xbox One where the payment was not disclosed. In the CSGO Lotto case the promoters endorsed a gambling site they secretly owned. The pattern across all of them is identical: a real material connection, hidden from the audience. That is the violation the FTC has chased for over a decade, and the affiliate link is just its most common modern form.
Beyond the regulator there is a quieter cost. When a creator who never disclosed gets exposed, the audience does not read it as a paperwork slip. They read it as having been sold to without consent. An honest disclosure, placed where it cannot be missed and worded so it cannot be misread, is not a tax on the recommendation. Done in plain language it barely dents conversion, and it is the thing that lets a reader believe the next recommendation too.
Council summary
This post argues that FTC disclosure is a placement and wording problem, not a word-count problem: the rule asks whether a distracted reader would notice and understand the disclosure before acting, and most failures come from disclosures that exist but sit where nobody meets them. The council checked every date and figure against FTC primary sources. The 2009 and 2023 Endorsement Guide revisions, the July 2023 effective date and its "clear and conspicuous" definition, the 2021 Notice of Penalty Offenses to more than 700 advertisers, the Consumer Review Rule taking effect October 21, 2024, the $53,088 per-violation maximum that holds into 2026 after the cancelled inflation adjustment, the December 2025 warning letters to ten companies, and the Lord & Taylor, Machinima and CSGO Lotto cases all check out as described. The takeaway: put a plain-language disclosure right before each affiliate link, in the same format as the content, and assume the only reader who matters is the one who sees nothing else.
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