Source. Production data from one anonymized Shopify store, analyzed with permission. Window: 12 months in 2025–2026. Public base: more than 73,000 orders, 2,100 refunds, about 860,000 EUR refunded, nearly 2,000 refunding customers and roughly 70 bank disputes.
Second store (September 2026). Store B is a second anonymized Shopify store analyzed with the same method over 12 months to September 2026: about 48,000 orders, 2,800 refunds, roughly 850,000 USD refunded, about 2,100 refunding customers and 15 bank disputes. Refund rates for store B use orders older than 45 days as the denominator, exclude orders with a bank dispute, and count a refund only when the order was not cancelled. Repeat-refunder figures count refunded orders, not refund lines, because partial refunds on one order would otherwise inflate them. The shared-address figure comes from a privacy-preserving address fingerprint (a one-way hash of the normalized address), never from the address text.
Shipped vs cancelled. Refunds were split by whether the underlying order was ever fulfilled. About 800 refunds (roughly 400,000 EUR) sat on never-shipped orders; about 1,300 refunds (roughly 460,000 EUR) on shipped orders. Post-shipment statistics use the shipped slice as denominator because a refund on a cancelled order cannot be return abuse.
Wording.We say a customer "filed a chargeback", not "is a fraudster". Risk flags describe statistical patterns, not verdicts about people, and observed behavior does not establish motive.
Limitations.Single store, single vertical, single 12-month window. Lifetime value beyond the window, customer-acquisition cost, return receipt and product condition were not measured reliably. Refund-method splits were excluded because a third of refund value sat in an unexplained "other" bucket. Public counts and amounts are rounded for privacy; percentages and ratios were calculated from full-precision source data, so displayed figures may not recompute exactly. No row-level data is published.
Citing this page.Free to cite with attribution: "RefundSentry return fraud research, 2026", linked to https://refundsentry.com/research/return-fraud-statistics. Licensed CC BY 4.0.