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Online & E-Commerce

How to Make Money
Flipping & Reselling

Buy undervalued items at thrift stores, garage sales, and estate sales - then sell for profit on eBay, Poshmark, and Mercari. Top resellers build to $3K-$10K/month by mastering one niche.

$15-$50 Effective hourly rate
$100-$500 Starting inventory capital
1-2 weeks Time to first sale
Medium Difficulty

Quick Facts

Earning Range
$15 - $50/effective hour
Startup Capital
$100 - $500
Time to First Sale
1 - 2 weeks
Difficulty
Medium
Time Commitment
10 - 40 hrs/week
Tax Form
1099-K / Schedule C
Equipment Needed
Smartphone + car + storage
Work Location
Local sourcing + online sales

What You'll Do

Reselling is the business of finding undervalued items - at thrift stores, garage sales, estate sales, Facebook Marketplace, and clearance sections - and selling them at market price on platforms like eBay, Poshmark, and Mercari. The profit comes from the spread between what you paid and what the market will pay.

A typical reselling week looks like this: spend 2-4 hours sourcing (thrift stores, garage sales), 2-3 hours photographing and listing new items, and 1-2 hours packing and shipping sold items. Once you have 100+ active listings, sales become more consistent and passive.

Top reselling categories by profitability:

  • Vintage denim (Levi's, Lee, Wrangler)
  • Retro video games and consoles
  • Branded athletic wear (Nike, Patagonia)
  • Vintage power tools (DeWalt, Milwaukee)
  • College textbooks and technical manuals
  • Vinyl records and turntables
  • Vintage electronics and cameras
  • Designer handbags and accessories

Earnings Breakdown

Income depends heavily on your niche, sourcing skill, and how many active listings you maintain. Volume and niche expertise both compound over time.

$500-1,500 Part-time monthly profit
$3K-$6K Dedicated reseller monthly
$10K+ Full-scale reselling business
Reseller Stage Listings Weekly Hours Monthly Profit
Beginner
Learning the market, 0-3 months		 10 - 30 active 5 - 10 hrs $200 - $600
Part-time
Consistent sourcing, 3-12 months		 50 - 150 active 10 - 20 hrs $800 - $2,500
Dedicated
Niche mastery, 1+ years		 200 - 500+ active 20 - 40 hrs $3,000 - $8,000
Full Business
Multiple niches, team, 2+ years		 500+ active Full-time $8,000 - $25,000+

Profit is after COGS (sourcing costs) and platform fees (eBay ~13%, Poshmark 20%, Mercari ~10%). Shipping is typically paid by the buyer and handled by the platform.

Startup Costs

Reselling has minimal startup costs beyond the capital you use to buy initial inventory. Most tools needed - a smartphone camera, shipping supplies - are minimal costs.

ItemCostRequired?Notes
Initial inventory capital $100 - $500 Required Spend at thrift stores and estate sales. Start small, learn before scaling.
eBay and Poshmark accounts $0 Required Free to create. eBay charges ~13% on final value. Poshmark charges 20%.
Shipping supplies $20 - $50 Required Poly mailers, bubble wrap, tape, and boxes. USPS provides free Priority Mail boxes.
Postal scale $15 - $30 Recommended Weigh packages before listing to accurately estimate shipping costs in your prices.
Photography setup $0 - $50 Recommended Smartphone camera works great. A $15 light box or foam board background improves photos significantly.
Total to start: $100 - $500 - The capital you use to buy inventory is your main investment. Your first goal is selling that inventory profitably before spending more. Reinvest every dollar of profit back into inventory in the first 3-6 months.

Pros & Cons

Pros

  • Fully scalable - reinvest profits for growth
  • Flexible sourcing on your own schedule
  • No special skills - just pattern recognition
  • Income can grow exponentially year over year
  • Satisfying treasure-hunting experience
  • Can be done entirely part-time from home

Cons

  • Capital tied up in unsold inventory
  • Storage space needed as business grows
  • Shipping, returns, and customer service take time
  • Must stay current on pricing trends
  • Platform fees reduce margins (10-20%)
  • Income is inconsistent early on

How to Get Started

  1. 1

    Pick one niche category and master it

    Generalist resellers lose to specialists. Pick one category - vintage Levi's jeans, retro video games, or vintage power tools - and learn everything about it. What makes a Levi's 501 valuable versus common? Which Game Boy games are rare? The depth of knowledge you develop in a niche directly translates to your ability to spot profitable items quickly while sourcing.

  2. 2

    Always check sold prices before buying

    On eBay, filter searches to show Sold Listings only - not active listings. A pair of Levi's 501s listed for $150 means nothing. What the same pair actually sold for in the last 90 days is everything. Make checking sold comps an automatic habit before every purchase. Buy only when your target resale price minus platform fees and shipping leaves a meaningful profit.

  3. 3

    Source your first inventory with $100-200

    Visit 3-4 thrift stores and at least one estate sale in your first week. Focus exclusively on your chosen niche. Buy 10-20 items with clear profit potential based on your sold price research. At this stage, speed is less important than learning - you are building the instinct to recognize deals at a glance, which takes 30-60 trips to develop fully.

  4. 4

    Photograph and list every item within 24 hours of buying

    Unsold inventory sitting on shelves earns nothing. Make same-day or next-day listing a discipline. Shoot with natural light or a lightbox for clean backgrounds. Write titles the way buyers search - include brand, model, size, color, condition, and any identifying details. Fill in all eBay item specifics fields - the algorithm surfaces complete listings more often.

  5. 5

    Build to 100+ active listings as fast as possible

    The magic of reselling happens at scale. With 20 listings, you might sell 1-2 items per week. With 150 listings, you might sell 10-15 per week. Algorithms surface more of your items as your listing count and feedback score grow. The goal in the first 6 months is relentless listing growth - buy, photo, list, ship, repeat.

  6. 6

    Reinvest 70-80% of profits back into inventory

    Resist the temptation to spend your early profits. Treat the business like a growth investment - reinvest aggressively. $200 in capital becomes $400, becomes $800. Reselling is one of the few side hustles where your income can genuinely compound month over month. Many top resellers went from $500/month to $5,000/month in 12-18 months through disciplined reinvestment.

  7. 7

    Expand sourcing channels beyond thrift stores

    Once you know your niche deeply, expand sourcing beyond Goodwill and Salvation Army. Estate sales (EstateSales.net) have better quality and volume for many niches. Facebook Marketplace buyers often sell underpriced items to avoid shipping. Garage sales on Saturday mornings can be highly productive. Retail arbitrage (buying clearance items from Target and Walmart to resell) is another angle once you understand the market.

Best Platforms for Resellers

Best overall eBay Reselling Marketplace The largest reselling marketplace with the deepest buyer pool for virtually any category. Handles electronics, clothing, collectibles, tools, media, and more. Fee: ~13% final value. Best for everything except clothing-only sellers. Best for clothing Poshmark Fashion Reselling Platform Dominant platform for branded clothing, shoes, and accessories. Strong community-driven discovery. Simple shipping - print a flat-rate label. Fee: 20% flat. Best for women's fashion, vintage clothing, and athletic brands. Easy to start Mercari General Reselling Platform Simpler interface than eBay, good for a wide range of categories. Lower competition than eBay in many niches. Fee: ~10%. Good secondary platform to cross-list items already on eBay for additional exposure. Local only Facebook Marketplace Local Selling Platform Best for large or heavy items (furniture, appliances, tools) that are impractical to ship. No fees for local sales. Also excellent for sourcing - many people sell underpriced items here to avoid shipping hassle.

Get the Free Side Hustle Starter Kit

A reselling niche guide, profit tracking spreadsheet, listing templates, and a 1099 tax cheat sheet for sellers - everything to launch your reselling business this weekend.

You're in! Check your inbox for the Starter Kit.

Taxes as a Reseller

⚠

Reselling income is reported on Schedule C

If you regularly buy and sell items for profit, the IRS treats it as a business. Your sourcing costs are Cost of Goods Sold (COGS) and directly reduce your taxable income. eBay, Poshmark, and Mercari now issue 1099-K forms when you exceed platform-specific thresholds. Track every purchase receipt from day one.

Calculate My Tax Bill - Free

Key tax rules for resellers

  • ✓ Keep every sourcing receipt - thrift store, garage sale, and estate sale purchases are your COGS, reducing your taxable income dollar for dollar.
  • ✓ Track mileage to thrift stores, estate sales, post offices, and UPS/FedEx locations. At $0.67/mile (2024), 5,000 sourcing miles = $3,350 in deductions.
  • ✓ Platform fees and shipping supplies (poly mailers, boxes, tape, labels) are deductible business expenses.
  • ✓ 1099-K threshold changes: eBay, Poshmark, and Mercari now report to the IRS. Keep records regardless of whether you receive a form.
  • ✓ Set aside 25-30% of net profit (after COGS and fees) for taxes. Pay quarterly estimates if you expect to owe more than $1,000.

Frequently Asked Questions

What items are best for flipping and reselling?
Top categories include vintage denim (Levi's 501s, Lee, Wrangler), retro video games and consoles, branded athletic wear (Nike, Adidas, Patagonia), vintage power tools (DeWalt, Milwaukee), college textbooks, vinyl records, and vintage electronics. The best niche is one where you can develop genuine expertise and recognize underpriced items at a glance.
How much money do you need to start flipping?
You can start with as little as $50-100. Most successful resellers recommend starting with $100-200 to buy your first 10-20 items, sell them, and use the proceeds to keep going. As you develop pattern recognition, your sourcing capital grows from profits. The first $500 in reselling sales is the market education phase.
Is reselling considered self-employment for taxes?
Yes. If you regularly buy and sell items for profit, the IRS considers it self-employment income reported on Schedule C. Your sourcing costs are Cost of Goods Sold (COGS), which directly reduces taxable income. eBay, Poshmark, and Mercari now issue 1099-K forms above platform-specific thresholds. Use our 1099 tax calculator to estimate your bill.
What is the best platform for reselling?
eBay remains the largest and most versatile platform with the deepest buyer pool. Poshmark and Depop excel for branded clothing and accessories. Mercari works well for a broad range of items. Facebook Marketplace is best for large local items you cannot ship. Most serious resellers list on 2-3 platforms simultaneously to maximize sell-through rate.
How much can you make flipping items?
Part-time resellers (5-10 hours per week) typically earn $500-$2,000 per month after COGS. Dedicated resellers who treat it as a business earn $3,000-$10,000 per month in profit. Income scales directly with the time you invest in sourcing and the capital available to buy inventory. The ceiling is virtually unlimited - top resellers run multi-six-figure operations.