eBay Product Research: Finding High-Margin Products That Sell

Profitable eBay selling starts with sell-through rate: sold listings divided by active listings. Above 100%, demand outstrips supply — that's where margins live.

Use eBay's sold-listing filter and research tools to validate demand over 90 days, not 7. Check average sold price against your total cost including fees and shipping to confirm real margin.

Avoid saturated categories dominated by high-volume Chinese sellers unless you can differentiate on speed, bundling, or condition.

Systematize it: a weekly research block that shortlists 10 candidates and launches 3 test listings beats sporadic sourcing every time.