Poshmark Seller Guide 2025: Fees, Shipping & Algorithm

Poshmark is the go-to platform for fashion reselling—simple fees, social features, and a buyer demographic hungry for discounted name brands. If you're flipping clothing from thrift stores, Poshmark should be in your rotation.

But 2025 brought major changes. The shipping system flipped, the algorithm shifted from sharing to SEO, and sellers who haven't adapted are watching sales tank. Here's what you need to know.

2025 Fee Structure

Poshmark has the simplest fee structure in resale—and the highest take rate for sales over $15.

The 20% sounds steep compared to eBay's 13.25%, but Poshmark includes payment processing. There are no hidden fees to calculate. For a $50 sale, you keep $40. Period.

The flat $2.95 fee on sub-$15 sales makes cheap items unviable. An $8 t-shirt loses 37% to fees. Don't bother listing items you can't price at $15 or higher.

The 2025 Shipping Overhaul

This is the biggest change to hit Poshmark in years. As of September 2025, Poshmark switched from USPS Priority Mail to USPS Ground Advantage.

What Changed

New rate: $6.49 for packages up to 5 lbs (down from ~$8.27 Priority)

Delivery time: 2-5 business days vs. 1-3 days Priority

Packaging: You can NO LONGER use free USPS Priority Mail boxes

What This Means for Sellers

The shift saves buyers money on shipping, which can increase conversions. But it transfers packaging costs to you. Budget for boxes and mailers—they're no longer free from USPS.

For heavy items (boots, winter coats) exceeding 5 lbs, you're responsible for upgrading the shipping label. These upgrade fees come out of your earnings and scale rapidly up to the 10 lb limit.

The Algorithm: SEO Over Sharing

Poshmark evolved from a chronological feed to an algorithmic "For You" feed. The old strategy of sharing listings constantly is dying. In 2025, keywords and SEO drive discovery.

Title Construction

A title like "Cute Top" is invisible to the algorithm. A title like "Madewell Silk Button Down Floral Blouse Size M" provides the semantic signals Poshmark needs for placement.

Include: Brand + Material + Style + Pattern/Color + Size

This is the same principle as writing optimized listing titles across any platform.

Sharing Still Matters—Sort Of

Sharing keeps items "active" in the algorithm's eyes. But the diminishing returns are real. Spending hours sharing your closet yields less ROI than spending that time on better photography and SEO-rich titles.

Share your closet once or twice daily to maintain activity status. Don't waste time sharing millions of times via bots—Poshmark now detects non-human behavior and applies "shadow bans" where shared items don't actually appear in feeds.

Recency Bias

The algorithm favors fresh inventory. Listing new items provides a stronger visibility boost than sharing existing ones. The "Just In" filter is a primary discovery path for power buyers.

For stale inventory (90+ days), consider deleting and relisting rather than just sharing. This resets the item as "new" to the algorithm.

Promoted Closet

Poshmark's paid advertising tool uses machine learning to match listings with shoppers. Unlike eBay's keyword bidding, this is a "black box" system—you set a weekly budget, Poshmark handles placement.

Early data suggests Promoted Closet is effective for clearing stale inventory but can get expensive if unmonitored. Start with a small budget ($10-20/week), track which items sell through promotion, and adjust accordingly.

Best Categories for Poshmark

Poshmark's demographic skews heavily toward millennial women looking for deals on known brands. Focus on:

Mid-tier mall brands: Lululemon, Madewell, Anthropologie, Free People, Zara perform consistently. These are the brands Poshmark buyers search for and recognize.

Athletic wear: Lululemon especially, but also Nike, Adidas, Under Armour in excellent condition.

Sneakers and streetwear: Poshmark has gained ground on Grailed for Nike, Jordan, and Supreme. Their "Posh Authenticate" service for luxury items over $500 builds buyer trust.

Designer handbags: With authentication, Poshmark competes with The RealReal for verified luxury goods.

Common Seller Mistakes

Using Priority Mail Packaging

Can't stress this enough: the red and white USPS Priority boxes are no longer valid for Poshmark shipping. Use poly mailers or plain boxes. Stock up—this is now a real cost of doing business.

Over-Sharing via Bots

The old playbook of automated sharing is dead. Shadow bans are real, and the SEO-driven algorithm makes mass sharing a poor use of resources anyway. Work smarter.

Vague Titles

Every word in your title should work for search. "Pretty dress medium" tells the algorithm nothing. "Reformation Midi Wrap Dress Floral Print Size M" tells it everything.

Ignoring "Offer to Likers"

OTL is Poshmark's built-in marketing tool. When someone likes your item, send them an offer. Require a shipping discount to send OTL, so price accordingly from the start.

Poshmark vs. Other Platforms

Use Poshmark for fashion where it excels. Use eBay for hard goods and electronics. Use Mercari for mid-range everything. See our full platform comparison for when to list where.