Costco shoppers are walking into warehouses this spring and finding a strange split: some prices are holding steady, while others are creeping up shelf by shelf.
The chain's famously cheap rotisserie chicken still sits at $4.99, but imported olive oil, coffee, and select electronics have all ticked higher over the past year.
The reason isn't a mystery to economists.
New tariffs on goods from China, Mexico, and Canada have raised the landed cost of thousands of items, and grocery inflation is running hotter than the overall rate.
Costco has absorbed some of that pain to protect its membership pitch, but analysts say the company can't swallow all of it forever.
For households already stretched thin, the math is uncomfortable.
Credit card APRs remain near record highs above 20 percent, rents in many metros are still climbing, and grocery bills for a family of four have jumped roughly 25 percent since 2020.
Every dollar saved at the warehouse now competes with interest charges that quietly eat the gains.
Store-brand Kirkland Signature items remain the strongest value play, often priced 20 to 30 percent below name-brand equivalents with comparable quality.
Bulk paper goods, frozen proteins, and pharmacy generics still deliver consistent savings for members who actually use them.
The catch is that Costco's model rewards discipline, not impulse.
A $1.50 hot dog and a $4.99 chicken can anchor a cheap dinner, but a cart full of small-ticket impulse buys erases the membership fee in a single trip.
The warehouse is designed to make you spend more, not less, which is why the parking lot is always full on Saturdays.
Timing also matters more than most shoppers realize.
Costco runs rotating instant-savings books, and the discounts reset roughly every three to four weeks.
Items with a price ending in .97 are typically markdowns, while .99 usually means full price.
Asterisks on price tags signal the item is being discontinued, which is often the last chance to stock up cheap.
Costco fuel consistently undercuts nearby stations by 10 to 30 cents per gallon, and for a two-car household filling up weekly, that alone can cover the $65 basic membership.
The catch is that lines get long, and the savings shrink if you burn a quarter tank waiting.
Looking ahead, the biggest wildcard is tariffs.
If the current trade posture holds through summer, expect more pressure on imported goods and fewer dramatic rollbacks on staples.
Costco has historically leaned on its buying power to negotiate hard with suppliers, but those negotiations have limits when the underlying cost of goods is rising.
Our take: Costco still offers genuine value, but the era of assuming everything in the warehouse is a bargain is over.
Compare unit prices, watch for .97 tags, and treat the membership as a tool rather than a license to spend.
Final Thoughts
In a year where credit card interest and rent are doing real damage to budgets, the discipline you bring to the aisle matters more than the store itself.