How to Start Reselling in 2026 — Complete Beginner's Guide
Everything you need to know to start making money reselling items online, from finding inventory to shipping your first sale.
What Is Reselling?
Reselling is the business of buying items at a low price and selling them at a higher price for profit. Resellers source products from thrift stores, garage sales, estate sales, clearance racks, liquidation pallets, and wholesale suppliers, then list them on online marketplaces like eBay, Etsy, Poshmark, Mercari, and Amazon.
What makes reselling attractive as a side hustle or full-time business is the low barrier to entry. You can start with items you already own, invest as little as $20-50 in initial inventory, and scale at your own pace. There is no need to manufacture products, build a brand from scratch, or maintain a storefront. You are essentially an arbitrage business — finding undervalued items and connecting them with buyers who see their full value.
In 2026, the secondhand economy continues to grow rapidly. Consumers are increasingly interested in sustainability, affordability, and unique finds. Platforms like ThredUp report the resale market growing 16x faster than traditional retail. There has never been a better time to start.
Where to Find Items to Resell
Sourcing — finding profitable inventory — is the foundation of reselling. Here are the most common sourcing methods:
Thrift Stores
Goodwill, Salvation Army, Savers, and local thrift shops are the bread and butter of reselling. You can find clothing, shoes, accessories, electronics, home goods, books, and more at a fraction of retail prices. The key is knowing what to look for — learn which brands, categories, and items sell well online before you start buying. Most successful thrift store resellers develop a "sourcing eye" over time by studying sold listings on their platform of choice.
Garage Sales and Estate Sales
Garage sales offer some of the best deals because sellers want to clear out items quickly. Arrive early for the best selection and do not be afraid to negotiate — most garage sale sellers are happy to take lower offers, especially later in the day. Estate sales often have higher-quality items including vintage goods, collectibles, and antiques.
Retail Arbitrage
Retail arbitrage involves buying clearance or discounted items from retail stores and reselling them online at a higher price. Stores like Target, Walmart, and TJ Maxx frequently mark down items that still have strong demand online. Use the eBay or Amazon app to scan barcodes and check selling prices before you buy.
Online Arbitrage
Similar to retail arbitrage, but done online. Buy discounted items from online retailers, flash sales, or deal sites and resell them on marketplaces. This is especially popular for Amazon FBA sellers who ship inventory directly to Amazon warehouses.
Wholesale and Liquidation
As you scale, buying wholesale lots or liquidation pallets becomes more economical. Liquidation companies sell returned or overstock merchandise from major retailers at deep discounts. The risk is higher because you may get items in mixed condition, but the cost per item is very low.
Choosing Your Selling Platform
Each marketplace has its strengths. Here is a quick comparison to help you choose where to start:
| Platform | Best For | Approx. Fees |
|---|---|---|
| eBay | Everything, especially electronics, collectibles | ~13.5% |
| Etsy | Vintage, handmade, craft supplies | ~10.5% |
| Poshmark | Fashion, shoes, accessories | 20% |
| Mercari | General items, quick sales | ~12.9% |
| Amazon FBA | New products, retail arbitrage | 15% + FBA fees |
Most experienced resellers sell on multiple platforms simultaneously (called "cross-listing") to maximize their audience and sell items faster. Start with one platform, learn the process, and expand from there.
Pricing Your Items for Profit
Pricing is where many new resellers make mistakes. The goal is to set prices that sell your items while covering all costs and leaving you a profit. Here is the formula:
Profit = Sale Price - Platform Fees - Shipping Cost - Cost of Goods
Before listing any item, research what it has actually sold for (not just what people are asking). On eBay, filter by "Sold Items." On Mercari and Poshmark, check completed sales. Then use our fee calculators to determine your true profit:
A good rule of thumb is to aim for at least a 50% profit margin after all costs. If you buy an item for $5, aim to sell it for at least $15-20 after fees and shipping. Items that do not have enough margin are not worth your time to photograph, list, store, and ship.
Shipping Basics for Resellers
Shipping is a critical part of reselling that directly impacts your profits and buyer satisfaction. Here are the essentials:
- Invest in a scale. A kitchen scale or postal scale is essential. Guessing weights leads to either overpaying for shipping or getting surcharge penalties.
- Stock up on supplies. Buy poly mailers, bubble mailers, boxes, and packing tape in bulk. Free USPS Priority Mail boxes are available at your post office — use them when shipping Priority.
- Use discounted labels. eBay, Mercari, and Poshmark all offer discounted shipping through their platforms. Third-party services like Pirate Ship also provide commercial rates.
- Package professionally. Protect items from damage, use appropriate packaging for the item type, and present a clean package. First impressions matter — a well-packed item leads to better reviews.
Tracking Your Profit
Many resellers sell plenty of items but have no idea if they are actually making money. Tracking your numbers is essential. For every item, record your cost of goods, platform fees, shipping cost, and sale price. At minimum, use a spreadsheet. As you scale, consider dedicated inventory management tools.
Key metrics to track: total revenue, total cost of goods sold, total fees paid, total shipping costs, net profit, and profit margin percentage. Review these monthly to understand which categories and platforms are most profitable for you, and adjust your sourcing strategy accordingly.
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Frequently Asked Questions
How much money do I need to start reselling?
You can start with as little as $0 by selling items you already own. If you want to source inventory, $20-50 is enough for a thrift store sourcing trip. As you reinvest profits, your inventory and earnings can grow organically.
What is the best platform to start reselling on?
eBay is the best starting platform for most new resellers because it supports the widest range of categories and has the largest buyer audience. If you primarily sell clothing, Poshmark or Mercari may be a better fit. For vintage items, consider Etsy.
How much can I make reselling?
Part-time resellers typically earn $500-2,000 per month. Full-time resellers can earn $3,000-10,000+ per month. Your income depends on how much you source, what you sell, and how efficiently you operate. Consistency is key.
Do I need to pay taxes on reselling income?
Yes. In the US, all income from reselling is taxable regardless of the amount. Since 2023, platforms are required to issue a 1099-K for sellers with $600+ in annual sales. Track your expenses — your cost of goods, shipping, supplies, and mileage are all deductible.
What sells the fastest when reselling?
Items that sell quickly include popular brand clothing (Nike, Lululemon), electronics, video games, LEGO sets, and seasonal items. Items priced under $30 tend to sell faster than higher-priced items. Condition matters — NWT and like-new items sell fastest.