How to use the online return window calculator
Enter the delivery date and the return window printed in the seller policy, then add the order amount, any restocking fee and the return shipping you pay. The tool gives the return deadline, days remaining and the net refund you would actually receive.
Legal basis (September 2026) — Unlike Korea, which grants a statutory seven-day withdrawal right for e-commerce purchases, the United States has no federal right to cancel an ordinary online order. The FTC Cooling-Off Rule at 16 C.F.R. Part 429 reaches door-to-door and off-premises sales only. What does apply federally is the Mail, Internet, or Telephone Order Merchandise Rule at 16 C.F.R. Part 435, which requires shipment within the stated time or 30 days and a prompt refund option if the seller cannot meet it. Some states, such as California under Civil Code 1723, add posted-policy rules. Check your state statute.
Because the window is contractual rather than statutory, keep the order confirmation showing the policy that applied on the day you bought.
This calculator is for reference only and is not legal advice. Consult a licensed attorney about your specific situation.
Frequently asked questions
No. The FTC Cooling-Off Rule at 16 C.F.R. Part 429 gives three business days to cancel, but it applies to door-to-door and other off-premises sales, not to orders placed online. For ordinary internet purchases the seller published return policy sets the window.
The FTC Mail, Internet, or Telephone Order Merchandise Rule at 16 C.F.R. Part 435 requires the seller to ship within the time stated, or within 30 days if no time is stated. If it cannot, it must offer you the choice of a delay or a prompt refund.
Some do. California Civil Code 1723, for example, requires retailers to post their return policy and allows a return within 30 days if they fail to do so. These rules vary by state and often target in-store sales, so check your own state law.