The ultimate guide to earning 6 figures on Poshmark, according to star sellers who've done it and gained boatloads of customers

Courtesy of Shannon JeanShannon Jean sells designer handbags on Poshmark.

• Poshmark is an online resale marketplace and app designed to make selling clothing an approachable side hustle.
• Some Poshmark entrepreneurs have turned their shops into full-time businesses that earn six figures.
• Business Insider spoke to three sellers who made more than $100,000 in sales on Poshmark.
• They gave tips for finding the right products, writing listings, setting prices, and gaining customers.
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All it takes to start a Poshmark business is your phone and an overcrowded closet.

The online resale marketplace and app makes it accessible for anyone to buy and sell preowned clothing on their phones.

But the most successful entrepreneurs aren't just selling old clothes they've "Marie-Kondoed" from their lives - they've forged relationships with wholesale suppliers, gained thousands of followers, and branched out on their own.

Business Insider spoke with three Poshmark sellers, or "Poshers" as they're known in the community, who scaled their shops and earned six figures selling on the app.

Shannon Welch shops at thrift stores to resell top brands like Free People and Anthropologie, and made $127,000 in sales last year. Elaine Ratner buys, styles, and sells wholesale clothing and has made $1 million in sales since starting her Poshmark shop and subsequent ecommerce site. Shannon Jean, a former tech-business owner, sells designer handbags on Poshmark, eBay, and Tradesy as just one of his multiple businesses. He said he sold about $500,000 last year and estimated that 70% of those sales came from Poshmark.

Here are the nine ways they use the app and their tips for making it a successful full-time business.

But before we get started, a few terms to know if you've never used Poshmark before:

• Posh, is an abbreviation for "Poshmark."
• Posher, is anyone who creates an account on Poshmark and uses the app.
• Closet, is a Poshmark seller's online store where they list items for sale.
• Bundle, is when a seller groups multiple pieces together in one listing.

If you have created a successful side-hustle or six-figure business on Poshmark and would like to share your story, please email jortakales@businessinsider.com.