Poshmark: Free USPS Ground Advantage Supplies for Sellers

Published: 2025-09-26

Poshmark has announced complimentary USPS Ground Advantage shipping supplies for Poshmark sellers—including polymailers, padded mailers, and boxes. This is a helpful cost‑saver for lower‑weight items that don’t need Priority speed.

What you get

• Variety of USPS Ground Advantage packaging: polymailers, padded mailers, and boxes.
• Available exclusively for Poshmark sellers via the program link.

Important reminders

• Do not use USPS Priority Mail‑branded packaging for Ground Advantage—USPS may charge an extra fee.
• Ground Advantage is typically best for lighter parcels where speed is not critical.

Source

Poshmark Blog — Lower shipping starting September 12th
Poshmark How to Ship — Shipping Guide