For established resellers
The finance desk your reselling business is missing.
Pricing for real margin, tax, cashflow, scaling decisions, platform economics, tool ROI — for the people running eBay, Amazon, Poshmark, Mercari, Whatnot, or Etsy as an actual business. The stuff dashboards don't tell you.
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Latest
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 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.
A Free Profit and Loss Spreadsheet for eBay and Poshmark Resellers
What a reseller P&L template must track, plus a free Excel and Google Sheets workbook for inventory, fees, COGS, aging stock, and monthly profit.
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.
When to Fire eBay: Platform Math at $20k/Month
When eBay stops being the best platform: blended take-rate math by category and the seller profiles that should move volume elsewhere.
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.
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.