Updated 2026
Free Amazon FBA sourcing workflow
Run fee and profit math before you order inventory. This workflow uses free FBAlytic calculators for steps 1 and 2. Step 3 is optional if you use a paid research tool.
Step 1: True profit after Amazon fees
Enter selling price, product cost, weight, dimensions, category, and marketplace. Include storage months, returns, and a realistic PPC ACOS.
Also useful: break-even, ROI, storage fees
Pass rule: many sellers want about 20% net after fees before PPC stress tests. If margin is thin at step 1, stop before you buy inventory.
Step 2: Rough demand from BSR
If you have a competing ASIN's Best Seller Rank, estimate monthly units. This is a formula estimate, not live marketplace data.
Step 3: Optional paid research
After steps 1 and 2 look acceptable, you can check keywords and competition in a research suite. Affiliate disclosure.
Validate This Product with Helium 10 →
More: Tool comparison, partner offers
Why this order helps
- Filters unprofitable products before software or samples
- Uses free calculators for fee tables and margin
- Adds paid research only when unit economics already work