Costco Breaks Tradition: New 'Scan & Go' Trial Could End Checkout Lines

For decades, the "Costco Effect" has been a running joke among members: you walk in for a $5 rotisserie chicken and walk out with a kayak, three rugs, and a $400 receipt. The warehouse giant has notoriously relied on the treasure hunt experience to drive sales, often at the expense of checkout convenience. But that philosophy is shifting.

According to CEO Ron Vachris, the company is officially testing a mobile 'Scan & Go' feature in select warehouses. This moves directly against the checkout friction that has defined the wholesale club experience for years. It isn't just about saving time. For budget-conscious families, it changes the math of how you shop.

Key takeaways

• Costco is piloting self-scanning via mobile app in 27 locations across Texas, California, and the Northeast (Source: CX Dive, June 2025).
• Early data shows checkout speeds have improved by up to 20% in pilot stores compared to traditional conveyor belt lanes.
• Real-time spending tracking helps prevent "sticker shock" at the register, using the "Pain of Paying" psychological principle.
• This move comes as Costco faces increased pressure from Sam's Club, whose groceries are estimated to be ~18% cheaper by weight according to a 2025 analysis by TheStreet.

The end of the Sunday afternoon gridlock?

If you have visited a warehouse on a weekend recently, you know the drill. You navigate the aisles, fill the cart, and then face the wall of shoppers waiting to pay. Costco has historically resisted mobile scanning technology—which competitor Sam's Club adopted years ago—preferring the accuracy and interaction of human cashiers.

That resistance ended in late 2025. During the Q3 2025 earnings call, CEO Ron Vachris confirmed the pivot, stating the new pilot has been "extremely successful" in speeding up transaction times.

The new workflow is straightforward. Members use the Costco mobile app to scan barcodes as they place items in their cart. When you are finished shopping, you pay directly on your phone. Instead of a paper receipt, the app generates a unique QR code. Finally, an employee (or in some test cases, a new AI scanner) scans that code at the exit door to verify the purchase. It removes the need to unload and reload your cart at the register, a friction point that families buying in bulk have dreaded for years.

The "hidden" budget tool: Real-time cart control

Speed is the headline, but the financial implication for CostRefund readers is more significant. The new system introduces Cart Control—the ability to see your running total before you reach the register.

This feature uses a concept behavioral economists call the "Pain of Paying." Research originally conducted by MIT's Prelec & Loewenstein, and supported by recent 2024 studies in The Journal of Consumer Research, suggests that the timing of payment affects spending behavior. When you blindly toss items into a cart, the "pain" is delayed until the cashier announces the total. By the time you see the number, social pressure and the hassle of voiding items make it difficult to back down. You pay the $400 and regret it in the parking lot.

With Scan & Go, that feedback loop is immediate. You see the total tick up with every scan. If your budget is $200 and the app shows $215, you can put the smoked salmon back immediately. For smart shoppers and bargain hunters, this transparency acts as a defense mechanism against impulse buys.

Why Costco is finally adapting

This technology shift is not happening in a vacuum. It is a response to competitive pressure. A price comparison by TheStreet (December 2025), which analyzed data from AARP, indicates that Sam's Club groceries are approximately 18.36% cheaper by weight than Costco's. Since Costco cannot always win on price alone against Walmart-backed Sam's Club, they must compete on value and experience.

Costco vs. Sam's Club: The tech gap (2026)

Feature	Costco (Pilot)	Sam's Club (Established)
Mobile Scan	Pilot in 27 Stores	Available Nationwide
Exit Verification	Manual/AI Hybrid	AI "Computer Vision" Arches
Cart Total View	Yes (App Only)	Yes (App Only)
Price Check	In-App (New)	In-App

CFO Gary Millerchip highlighted this digital priority in the Q1 2026 earnings call, noting that app traffic surged 48% as they began rolling out these tools. The strategy is clear: if the membership fee is going to feel worth it, the friction of shopping needs to disappear.

"We believe it's an opportunity for us to be able to deliver more value for the member... while also giving them more options in the way in which they can buy the product." — Gary Millerchip, CFO, Costco Wholesale (Q3 2025 Earnings Call)

Not everywhere... yet

The rollout is deliberate. As of February 2026, the pilot is active in roughly 27 select locations, primarily in Texas, California, and the Northeast. However, the infrastructure is expanding. For stores without the full mobile scan capability, Costco is simultaneously expanding "employee-assisted pre-scanning," where roving staff scan your cart while you wait in line.

What this means for your shopping strategy

This update signals that Costco is finally treating the mobile app as a core part of the shopping experience rather than an afterthought. For CostRefund users, this behavior shift is important.

If you are already using your phone to scan items for checkout, you are building the habit of digital management. This aligns perfectly with how you should handle price adjustments. Just as you shouldn't rely on memory to know how much is in your cart, you shouldn't rely on memory to track price drops on those 65-inch TVs or Dyson vacuums.

The smart shopper of 2026 uses technology to audit the retailer. You use the app to audit your cart total in real-time, and you use tools like CostRefund to audit your purchase history for missed savings after you leave the store.

Frequently asked questions

1. Is Scan & Go available at all Costco locations? No. As of February 16, 2026, the feature is a pilot program available in approximately 27 select warehouses, specifically in markets like Texas, California, and the Northeast. National rollout depends on the results of these tests, which CEO Ron Vachris has described as "extremely successful" so far.

2. Does this actually save time compared to the regular line? Yes. Early feedback indicates checkout speeds have improved by up to 20% for members using the digital tools. By skipping the "unload-scan-reload" process at the conveyor belt, you remove the biggest bottleneck in the warehouse.

3. How do they check my receipt if I don't have paper? Your phone generates a digital QR code after payment. At the exit, Costco employees (or experimental scanning units) scan this code to verify your cart contents, similar to the current exit door audit process but digitized. This mimics the "Scan & Go" system Sam's Club has used since 2016.

4. Can I use this for the food court? The current pilot focuses on warehouse merchandise. However, Costco has separately rolled out self-service kiosks for the food court to separate those lines from the merchandise checkout queues.

5. Does using the app cost extra? No. The Scan & Go feature is included with all valid Costco memberships (Gold Star and Executive). However, you must have the latest version of the Costco app installed and a valid payment method linked.