In the United States, Costco's returns policy appears to have undergone a discreet but significant change that has led to increased dissatisfaction among shoppers. Traditionally renowned for its lenient return practices, Costco customers have started to notice stricter requirements when attempting to return items. Reports indicate that members must bring back the product being returned in some cases where previously a simple request would suffice, as highlighted by a customer's experience with spoiled milk that was refused a refund without the item being returned to the store. This shift seems to have taken effect in early 2026, creating concerns among customers who have been accustomed to a more relaxed approach. Furthermore, Costco appears to be taking additional steps to manage and monitor return behaviors among its members. Recent changes have involved greater scrutiny surrounding return frequencies and the dollar amounts associated with those returns. Information from several sources suggests that a member who returns a sizable number of items may trigger an internal review process, possibly resulting in a flagged account and a need for managerial approval to process refunds. In extreme cases, Costco reserves the right to cancel the membership, although the shopper would be refunded their membership fee. Additional innovations in Costco's operational practices appear to be linked to these recent policy changes. Notably, many warehouses have implemented digital scanners at the entrances, enabling staff to track members' shopping histories more efficiently. If a member happens to lose a physical receipt, they can still access digital receipts through the Costco app, making transactions easier to verify. Despite these improvements, the adjustments to the returns policy have raised questions about customer experience as the retailer balances the need to combat fraudulent returns with maintaining customer loyalty. The retail landscape has been increasingly influenced by issues related to returns, and Costco is not unique in grappling with these challenges. The 2024 report from Appriss Retail and Deloitte highlights the growing problem of fraudulent returns for U.S. retailers, which have seen costs spiraling to around $103 billion. Many retailers, including Costco, are now implementing stricter checks in a bid to stem these losses while hoping to avoid alienating their customer base. Finding the right balance in returns policies will be critical for Costco as it navigates the evolving retail environment to promote both financial sustainability and shopper satisfaction.