It’s important to let your customers know how long they have to return a product. Generally speaking, 15-30 days is standard, although some businesses opt for 90 days. Either way, you won’t be doing yourself any favors by accepting returns beyond that time.
Fail to disclose a time frame for returns and you’ll find customers trying to ship back items months, even years (not kidding), after they’ve been purchased. Needless to say, this is not a good thing for online store owners. Several large businesses have suffered losses due to open-ended return periods, to the point that most have introduced stricter rules.