No joke — you don't need a receipt in order to make a Costco return. You don't even need the original packaging. ... You do need all the parts and pieces that came with the item, but receipts aren't necessary to process your return, because Costco tracks your purchases on your membership account.
What if I lost my Costco receipt?
It helps if you have the receipt or original product packaging, but it may not be necessary to process your return. Please keep in mind that, in order to continue delivering the low prices you expect from Costco, some items do need to be returned within 90 days. View Costco's Return Policy.
Can you return an item without a receipt?
Stores often try the "no refund or return without a receipt" line. ... But where an item fails, shops do not have the right to demand a receipt. A credit card slip or statement or even the say-so of a person who was present when the products were purchased, are legally enough.