How does influencer marketing actually work?
A brand pays someone with an audience to feature its product — and the mechanics of pricing, contracting and disclosure are considerably more structured than the casual appearance suggests.
The tiers, which behave differently:
Nano (roughly 1,000–10,000 followers) and micro (10,000–100,000) typically have higher engagement rates and stronger audience trust, cost far less, and are frequently better value per pound than large accounts.
Macro and celebrity deliver reach and brand association at much higher cost, with engagement rates that usually fall as audience grows.
How pricing is set. There is no fixed rate. Fees are negotiated from follower count, engagement rate, niche, usage rights, exclusivity, and deliverables. The two clauses that move price most:
Usage rights — whether the brand may reuse the content in its own paid advertising, and for how long. This is routinely underestimated and is where disputes arise.
Exclusivity — whether the creator is barred from working with competitors, and for how long. A long exclusivity period is a real cost to a creator's business and should be paid for.
The payment models: flat fee per deliverable; affiliate or commission, where the creator earns per sale via a tracked link or code; gifting, with no fee; and long-term ambassador retainers, which generally outperform one-off posts because repeated exposure builds association.
Disclosure is a legal requirement, not etiquette. Any commercial relationship — payment, free product, affiliate commission, family connection — must be clearly and prominently disclosed in most jurisdictions. Regulators have repeatedly acted against both creators and brands, and the brand is generally responsible too. "Ad" placed where it is seen before engaging beats a buried hashtag.
What to check before paying: engagement quality rather than follower count; audience location and demographics, which frequently do not match the brand's market; purchased followers and engagement pods, which are detectable; comment authenticity; and past brand work.
How to measure: unique codes and links, lift studies, branded search volume, and — most simply — asking customers where they heard of you.