Costco has quietly started enforcing a rule that many shoppers didn't even know existed, and it's already catching people off guard at the register.
The warehouse giant is tightening up who gets to use a membership card, and the crackdown is forcing some households to rethink how they split their bulk buys.
For years, members have shared cards with family, friends, and roommates without much pushback.
Now stores are checking photo IDs more carefully at self-checkout and asking to see the card at the door.
If the face on the membership doesn't match the person paying, you may be asked to step aside.
The math behind this matters for your budget.
A basic Gold Star membership runs $65 a year, and the Executive tier jumped to $130 last September, the first hike since 2017.
When households try to split one card to dodge that fee, Costco loses money, and that's why the enforcement is ramping up.
Here's where the deals angle gets interesting.
Costco's whole pitch is that the membership pays for itself through lower prices on gas, groceries, and household staples.
If you're splitting a card and splitting the savings, you're also splitting the value, which can make the annual fee feel steeper than it should.
The bigger shift is happening at the door.
Costco is testing membership card scanners at entrances in some locations, a move that could roll out more widely.
That means no more borrowing a card from a neighbor for a quick run, and it could push more shoppers toward their own membership or toward rivals like Sam's Club.
If you're a legit member, none of this changes your shopping trip.
But it does change the calculus for anyone who's been coasting on someone else's account.
The savings on a $4.99 rotisserie chicken and $1.50 hot dog combo only count if you can actually get through the door with your own card.
There's also a quiet upside for members who play it straight.
Stricter enforcement could ease crowding at popular locations and protect the low prices that make the membership worth keeping.
Fewer shared cards means Costco keeps more revenue, and that revenue funds the bulk discounts shoppers show up for.
Worth noting: Costco's return policy and pharmacy access are tied to your membership, so a shared card can create real headaches if you ever need to return an item or fill a prescription.
Buying your own membership keeps those perks clean and usable. **Our take:** If you're already splitting a card, it's time to do the honest math on whether a solo membership still pays off for your household.
Final Thoughts
For most regular shoppers, the answer is yes, but only if you're actually using the gas station and bulk staples to earn back that fee.