How Costco Wholesale Corporation Makes Money

A typical grocery chain or department store earns profit by marking up products — buy low, sell higher, pocket the spread. That fee income flows almost entirely to the bottom line because collecting it costs nearly nothing — no inventory risk, no spoilage, no freight. Everything else the company does — moving pallets, negotiating with Procter & Gamble, running gas stations — exists to make that $65 or $130 annual card feel like a bargain. Gold Star costs $65 per year and gives household access to warehouses and online pricing. The result is lower unit costs, which get passed to members as lower shelf prices, which justifies the membership fee, which funds the next cycle. Costco controls sourcing, quality standards, and pricing through its Costco Wholesale Industries subsidiary, which means it doesn't just slap a label on someone else's product. Ancillary services — pharmacy, optical, hearing aids, travel, auto buying, the Costco Anywhere Visa by Citi — add layers of value that make the annual fee feel increasingly justified without requiring significant capital investment per service. The metric that matters most for Costco isn't revenue growth. Revenue model: Costco sells goods at low margins and earns a large share of profit from annual membership fees, supported by high-volume warehouse operations. But it explains why Costco commands a $65 membership fee against Sam's Club's $50, why renewal rates sit above 93%, and why members talk about the store the way people talk about restaurants they love — with genuine enthusiasm rather than transactional loyalty. Costco members feel like they belong to something. Sam's Club members feel like they're saving money. It either passes the cost through (which makes members feel less special) or eats it (which compresses already-thin margins). The 2024 fee increase — the first in seven years — tested whether the relationship could absorb a price hike. The problem is, you'd need suppliers willing to give you rock-bottom pricing on day one, which they won't do without proof of volume. Once you've paid $65 or $130, you feel compelled to shop there to "get your money's worth." That's not rational — the fee is sunk — but it's powerful. Carrying 3,800 SKUs instead of 30,000 means each item sells in enormous quantities. That gives Costco pricing use that even Walmart struggles to match on a per-item basis. Costco pays above-market wages — starting around $18-19/hour with benefits — and gets turnover rates far below retail averages. Executive membership upgrades are pure revenue-per-member growth. Costco didn't flinch — it kept opening warehouses, kept markups at 14%, and let the internet kill everyone else's margins while its membership fees quietly compounded. Amazon, Walmart, and Sam's Club are competing to make leaving your house feel unnecessary. Sol Price had a rule: never let the customer feel stupid for shopping with you. Asking households to pay $25 per year (the original fee) just to walk through the door was bizarre in 1983. The fee paid for itself in a single shopping trip, and after that, every subsequent visit felt free. Both companies were growing, but the overlap was creating pricing pressure and real estate conflicts. By then, the culture had calcified into something remarkably durable: cap markups at 14-15%, carry fewer than 4,000 items, pay employees well, open warehouses slowly and carefully, and never let the customer feel like they're being played.

Its strategy centers on Costco is expanding warehouses globally, growing e-commerce carefully, strengthening Kirkland Signature, and keeping prices low to defend renewal rates. The problem is, Strategic direction: Costco is expanding warehouses globally, growing e-commerce carefully, strengthening Kirkland Signature, and keeping prices low to defend renewal rates. Costco's growth strategy is anchored by a single priority with a handful of supporting moves. Most analysts miss that this restraint is the strategy, not a failure to execute.