In the twelve weeks ending May 10, 2026, Costco booked $1.37 billion in membership fees and $2.19 billion in total profit. Almost two thirds of what the company earned came from people paying for permission to shop there. Knowing that changes how you should read the Costco Executive membership pitch, because the upgrade tier is the one place where you can make that arrangement work in your favor. Every comparison article I have read tells you to skip the upgrade unless you clear a spending threshold. The threshold is real. It just does not carry the risk everyone assumes it does.
The break-even number everyone quotes is the wrong number
The Executive tier costs $130 a year against $65 for Gold Star, so the upgrade premium is $65. Executive members earn a 2% annual reward on qualified purchases. Divide $65 by 2% and you get $3,250, which works out to about $62.50 a week at the warehouse. Spend more than that and the upgrade pays for itself. Spend less and you lose money.
Every other warehouse club membership runs the same structure with slightly different numbers. Sam’s Club raised its fees on May 1, 2026, taking the base membership from $50 to $60 and Plus from $110 to $120, so the Sam’s upgrade premium is now $60 and the break-even is $3,000. Sam’s did soften the increase by lifting the annual cap on Plus rewards from $500 to $750. BJ’s sits at $60 for Club and $120 for Club+, the same $60 spread, with rewards capped at $500 a year.
Those thresholds get repeated everywhere. They are also close to meaningless, because of what happens when you come up short.
What the Costco Executive membership actually promises when your reward falls short
Costco’s own reward policy says the reward is not guaranteed to equal or exceed the upgrade fee you paid. It then says how to get made whole: cancel or downgrade to a Gold Star membership, and the upgrade fee is refunded, with any reward already issued or accrued subtracted from that refund.
Run it with real money. Say your household spends $50 a week at Costco, which is $2,600 over a membership year. Your 2% reward comes to $52. That is $13 short of the $65 you paid to upgrade. Under the policy, you can downgrade and Costco refunds the $65 minus the $52 you already earned, so $13 comes back and you keep the $52 certificate. Add them up and you are holding exactly $65 in value against the $65 you spent. The experiment cost nothing.
Now run it the other way. A household at $85 a week hits $4,420 a year, earns $88.40, and clears the upgrade fee by $23.40 without doing anything differently. Either way you spent a year finding out, and the only outcome where the upgrade genuinely loses money is the one where you never bother to ask for the refund.
Gas is the part that usually decides it. Costco has topped GasBuddy’s cheapest-chain rankings for years, and the gap is real: in May 2026 the South San Francisco warehouse on El Camino Real was selling regular at $5.69 while AAA put the San Francisco average at $6.29. At a 20 cent advantage you need 325 gallons to cover the $65 base fee on its own, roughly 7,800 miles of ordinary driving. Fuel does not earn the 2% reward, which is exactly why people miscount. It pays for the membership; it does not pay for the upgrade. If you want more ways to shave the pump price, our grocery fuel rewards guide covers the stacking side of this.
Your reward stops growing before your membership year ends
Costco issues the 2% reward roughly two months before your renewal date and mails the certificate with the renewal notice about three months out. The certificate reflects only what you earned up to the issue date. Everything you buy in those final weeks rolls into next year’s reward instead.
It is not forfeited, it is deferred, and that matters in one specific situation: if you decide to quit the club. Costco requires an active membership to redeem the certificate. Walk away in January holding a reward issued in November and the paper is worth nothing. Spend it first, then decide.
A related trap sits in who earns the reward. Only purchases made by the primary member and the active primary household cardholder count. If a third person on the account does the Sunday run, those receipts are invisible to the calculation. One more 2026 wrinkle: Costco Travel launched a Viator partnership on June 4, 2026, offering members a 15% discount on tours and excursions, and Costco has confirmed those bookings do not count toward the 2% reward.
Upgrading in March costs you the months you already spent
The same clock cuts the other way at the front of the year. The reward accrues only on purchases made after the upgrade takes effect, and Costco is explicit that spending before the upgrade does not qualify.
So the calendar position of your upgrade is worth real money. Upgrade the week your membership year resets and you capture twelve months of receipts. Upgrade in month seven and you are paying a full $65 for a tier that can only see five months, which roughly doubles your effective break-even for that year. Your renewal month is printed on the back of the card.
The ceiling matters far less. Costco caps the reward at $1,250 in any twelve month period, which you only reach at $62,500 of qualified spending. Sam’s Club Plus caps rewards at $750, reached at $37,500. BJ’s caps at $500, reached at $25,000. Unless the warehouse is supplying a small business, none of those numbers will ever come up.
The certificate is paper, and paper gets lost
The 2% reward does not land in an app. It arrives as a paper certificate inside the renewal statement, and it has to be redeemed with a cashier at a front-end register. Self-checkout will not take it. You can also use it to pay your renewal fee outright, which is the cleanest move: it converts a certificate you might misplace into a membership you were going to buy anyway.
Which raises the question of how the club still comes out ahead on a tier it will refund. It comes out ahead on your behavior. A CardRates survey fielded in July and August 2026 found that 48% of parents holding a paid warehouse club membership overspend on more than half their trips, and that people carrying memberships at multiple clubs overspend on most trips at a 65% rate against 40% for single-club members. Chasing a 2% reward is a good way to join that group. One unplanned $180 run erases a $52 certificate three times over, which is the whole trick: the refund protects the fee, not the grocery bill. The shelf tags are the defense, and unit pricing is the only honest way to tell whether the bulk size is actually cheaper.
What to do this week
Start with your renewal date, which is on the back of the card. On the base tier, wait and upgrade at renewal rather than partway through the year, so the reward gets a full twelve months to work with. Already upgraded and the certificate came in under what you paid? Take it to the membership counter and ask to downgrade. That is what triggers the refund of the difference, and nobody is going to offer it to you. And if a certificate is sitting in a drawer right now, go spend it, ideally on the renewal fee itself.
Costco ended fiscal 2025 with 81 million paid memberships and 38.7 million of them at the Executive tier, a 9.3% jump in one year. A company that refunds a fee on request does not grow a tier that fast by accident. It grows because the refund is quiet and the people who most need the $13 back are the least likely to stand at a counter asking for it. The Costco Executive membership will hand your money back when it underdelivers. You have to be the one who asks.
