On Poshmark, buyers always pay for shipping. The cost of shipping is calculated by Poshmark automatically and usually includes a certain amount of weight within the shipping cost. Poshmark shipping options include USPS options such as Priority Mail, Priority Flat Rate, and Priority Regional Rate boxes and mailers.
Sellers are responsible for packaging and sending the item to buyers and must mark the item as ‘shipped’ in the Poshmark app within three business days of making the sale. Poshmark includes in-app tracking for buyers and sellers to track the package and features for buyers to mark the item as ‘delivered.’