Costco pilots eight-second pre-scan checkout to speed lines, blend staff help with high-speed pay tech
Costco is piloting a mobile pre-scan checkout in 27 warehouses that lets members scan items as they shop, display a QR code for employee verification and pay at automated stations, cutting average transaction times to about eight seconds.
- Fast pay: Pilot stores report average transactions near eight seconds, smoother traffic and positive member feedback.
- Hybrid model: Shoppers scan via the Costco mobile app, an employee verifies the virtual cart, then members use automated pay stations.
- Digital push: Leadership ties the move to mobile wallet updates, pharmacy pay-ahead, employee pre-scan tech and broader AI/digital investments.
- Local impact: For San Luis Obispo, faster checkouts could help students, small businesses and reduce parking dwell times while shifting some staff duties.
How the pre-scan system works
Process: Members use the Costco mobile app to scan item barcodes while shopping; the app assembles a virtual cart. When ready to leave, the member displays a personalized QR code to an employee who verifies the cart, then directs the member to an automated pay station.
The design explicitly keeps a human verification step to reduce errors and misuse while using automation to cut payment time. Early pilot commentary emphasizes staff presence plus faster automated payment.
What executives said
On Costco’s Q2 2026 earnings call, CFO Gary Millerchip described the initiative as part of efforts to “achieve meaningful improvements in the speed of checkout and employee productivity.” He linked the pilot to mobile wallet enhancements, pharmacy pay-ahead and employee pre-scan technology, and said pilots of automated pay stations produced average transaction times of about eight seconds with “great member feedback.”
Past tests and technology history
Costco previously tested self-checkout kiosks and handheld scanner guns in the early 2020s with mixed responses: some shoppers liked speed and convenience, others cited technical issues or problems with large carts. This pre-scan approach shifts the emphasis to employee verification before payment, balancing automation and oversight.
Reference reporting noted differences between prior trials and the current pilot.
Digital, AI and the broader strategy
Costco is pairing warehouse pilots with app and site upgrades — improved personalization, digital receipts and membership ID tools — and expects these digital investments to support e-commerce growth. Executives also discussed stricter entrance controls to curb card sharing and richer digital services for business customers.
Public posts and videos point to possible experiments with facial or fingerprint scanning at entries, though Costco has not announced chain-wide adoption.
Who prefers which checkout
Industry data indicate a generational split: ~43% of consumers prefer self-checkout overall, rising to ~53% for ages 18–44, while shoppers 55+ favor manned lanes and cite large carts as a barrier to self-service. Costco’s pre-scan model attempts to appeal to both groups by keeping employee verification while enabling fast pay.
Financial context and margin strategy
In Q2, Costco reported net sales up 9.1% to $68.24 billion and net income up 13.6% to $1.36 billion, gains leadership partly attributed to a membership price increase. Costco’s capped product margins (~14–15%) remain well below traditional grocers (commonly 25–35%), which supports low prices even as the company invests in speed and digital tools.
Pilot results and what remains unknown
Initial results from 27 pilot warehouses (launched May 2025) show shorter lines, smoother traffic flow and positive member feedback, with average transaction times close to eight seconds. However, Costco has not set a public timetable for a national rollout. Questions remain about handling very large orders, returns, and members who do not use the mobile app.
Privacy and security questions
Past trials raised concerns about data use and biometric entry systems. Costco says the current pilot relies on app-based QR verification rather than mandatory biometrics, but any move toward facial or fingerprint scanning would likely attract scrutiny from privacy advocates and regulators.
How this fits the member experience
The hybrid model aims to preserve Costco’s human touch while providing a dramatically faster payment step. For members who do quick bulk runs, an eight-second payment could transform weekend peak periods. The pilot also highlights growing app functionality — barcode scanning, digital receipts and membership ID tools — to make pre-scan seamless.
Implications for San Luis Obispo, California
Economic impact
Local Costco warehouses serve families, students and many small businesses across San Luis Obispo County. Faster checkouts could reduce in-store time, potentially increasing visit frequency for busy shoppers and saving time for small businesses and caterers that use Costco for supplies.
Workforce and jobs
Employee pre-scan duties may shift staff workflows from register-focused work to verification and automated-lane management. That could increase demand for staff with basic tech and customer-service skills. The pilot keeps employees involved rather than replacing them outright, so immediate major job losses are unlikely.
Students and younger shoppers
San Luis Obispo’s student population at Cal Poly may adopt the app-driven pre-scan quickly. Younger shoppers generally prefer contactless, app-based payments and self-service, which could ease congestion during evenings and weekends.
Older shoppers and accessibility
Many older residents prefer manned lanes, especially for large carts. Because the pilot retains employee verification, stores can still accommodate seniors and those with accessibility needs; clear signage and staffed lanes will help avoid confusion.
Traffic and parking
Shorter in-store dwell times may ease peak-hour parking and nearby road congestion as cars circulate faster. City planners and store managers should monitor whether quicker checkouts shift peak shopping times or create localized surges at automated pay stations.
Local business relations and membership
Small retailers and offices that frequent Costco could benefit from faster pick-ups. Business members who visit frequently may see meaningful time savings, reinforcing Costco’s value proposition alongside its low-margin pricing strategy.
Privacy and community reaction
If Costco experiments with entrance controls or biometric tech locally, privacy advocates and regulators in California may demand transparency, safeguards and opt-out options. Clear communication on data use will be important to maintain trust.
Practical takeaway for shoppers
San Luis Obispo members who use the Costco mobile app to scan while shopping may experience sub‑ten‑second payments at automated stations. If you prefer staffed lanes, the pilot is designed to keep employees involved. Update the Costco app and look for in-store signs if you want to try pre-scan checkout.
Sources and reporting
Reporting and sources for this article include:
- The Takeout — reporting on Costco’s fast checkout plan, pre-scan details and pilot rollout.
- Sporked — coverage of Q2 2026 earnings comments from CFO Gary Millerchip and digital strategy.
- Parade — reporting on past Costco self-checkout trials and shopper reactions.
- YouTube video — coverage showing possible tech trials at entrances.
Reporting from Times Media Service; sources listed above. Preserve original facts and URLs as cited.
