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📦 Poshmark’s New Shipping Update: What Sellers Need to Know About USPS Ground Advantage
Big news for resellers! Poshmark has officially switched from USPS Priority Mail to USPS Ground Advantage starting September 12, 2025. This change is a major win for your wallet. The new flat-rate shipping fee is just $6.49 for packages up to 5 lbs. It makes it easier than ever to ship bundles and heavier items without breaking the bank.
But with lower rates comes a packaging pivot. If you’ve been using free Priority Mail boxes, it’s time to update your shipping station. Here’s everything you need to know to stay compliant, save money, and streamline your workflow.

💰 What’s Changing with Poshmark Shipping
- New Rate: $6.49 flat for packages up to 5 lbs
- New Service: USPS Ground Advantage (2–5 business days)
- Packaging Rules:
- Priority Mail boxes and envelopes will no longer be accepted after October 12, 2025
- Using them will trigger a $5 USPS fee charged to the buyer
📦 How to Get Free USPS Ground Advantage Packaging
Poshmark has teamed up with USPS to offer exclusive free packaging for verified sellers. Available options include:
- Polymailers
- Padded mailers
- Standard boxes
âś… To order your free packaging:
- Call USPS at 800-610-8734
- Provide your Poshmark closet name to verify eligibility
- Request Ground Advantage supplies specifically
📝 Tip: This offer is only available to verified Poshmark sellers, so have your closet name ready when you call.
🛍️ How to Find Your Poshmark Closet Name
Your closet name is your unique seller ID—and you’ll need it to request packaging.
On the Poshmark App:
- Tap your profile icon (bottom right)
- Your closet name appears at the top (e.g., @staceyknows)
On Desktop:
- Log in and click your profile photo (top right)
- Select “My Closet”
- Your closet name is the last part of the URL (e.g., staceyknows)
📌 Write it down or save it—you’ll need it when calling USPS.
🛠️ What to Do with Old Priority Mail Supplies
- Return full packs (10 or 25 count) to your local post office
- Use leftover materials for non-Poshmark Priority Mail shipments
- Recycle any unusable packaging
JOIN ME ON POSHMARK
Sign up now with my code STACEYTEA12 to save $10 on your first order. Hurry—this code is only valid for a limited time!
Download Poshmark Now

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