Facebook Marketplace users in America can now pay for their purchases directly on the platform and then get their goods shipped to anywhere in the country.
Currently, Marketplace has a local classified focus, but the new payment and shipping option brings the service into competition with the likes of Amazon Marketplace and eBay.
Buyers can browse the service and then make an offer and specify whether they want the item shipped. The seller has 24 hours to accept. If they do, the buyer can pay with their card or PayPal details stored with Facebook and get the item delivered.
Jo Howes, commercial director at digital banking software provider Crealogix suggests the move is part of wider effort by Big Tech to move onto banks' turf.
Says Howes: "Facebook, Amazon, and Apple have a number of competitive strengths they could bring to bear against both incumbent retail banks and challenger banks.
"With a vast customer base, a primary business capability of delivering seamless digital user experience, and the fact they are unburdened by legacy technology, they will become a very real threat very quickly."