Articles
Ops and finance for resellers who are past the “how to start” videos. Grouped by the part of the business it fixes.
Operations
One SKU and Bin System for eBay and Poshmark Inventory
Track each crosslisted item once, use the same SKU on eBay and Poshmark, and find it fast with a separate bin location.
How to Measure and Clear a Reseller Death Pile
Separate unlisted backlog from stale listings, count the purchase dollars tied up in each, and run a weekly review that actually clears stock.
How to Calculate Sell-Through Rate for an eBay or Poshmark Reselling Business
A practical sell-through formula for your own resale inventory, worked examples, and the difference between store velocity and eBay marketplace demand.
Returns Are a Margin Killer — Here's the Math on a Refurbish-vs-Refund Policy
Return rate by platform varies 3-15%. Most operators don't price it into listing margin. The full cost-of-return calculation, plus the threshold where refurbish-and-relist beats refund.
Cashflow
How to Calculate True Profit on One eBay Sale
Subtract the actual eBay fee, postage, item cost, and packaging from the money you keep. Includes a worked example that handles buyer-paid shipping and sales tax correctly.
Everyone Publishes Revenue, Nobody Publishes Profit: The State of Reseller Numbers in 2026
I went looking for every reseller publicly reporting business numbers in 2026 and graded what I found. Revenue is everywhere. A real P&L is nowhere.
$100k in Sales Is Not $100k in Income — The Reseller's Income Truth Table
A worked truth table for $100k, $250k, and $500k/year resellers showing what actually lands in the operator's bank account after costs, fees, taxes, and reinvestment.
Tools
Platforms
Pricing
What Poshmark Actually Takes: Calculating Your Real Margin
Yes, Poshmark takes a percentage — but its 'earnings' number hides six more costs every seller eats. The real margin formula, with a worked example: $38.40 reported, $25 real.
Pricing for Profit, Not Pricing for Comps
Comping tells you what an item can sell for, not what it should earn your business. A pricing framework that starts from your required margin.