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Free Amazon seller fee calculator. Estimate referral fee, FBA fulfillment, storage, and total Amazon fees — then net profit and margin % per SKU. For PPC and break-even, use the Amazon FBA profit calculator.
Last updated: May 24, 2026
Need full unit economics with ads? Amazon FBA profit calculator
Net Profit
$12.94
Profit Margin
32.4%
Revenue
$39.99
Amazon Fees
$11.75
Total Cost
$15.3
ROI on Cost
84.6%
Performance: Excellent
Strong margin profile. Consider broader keyword coverage and catalog expansion.
Amazon Tips:
Answers: how much does Amazon take per sale, what is left after fees and COGS, and is this SKU profitable before ads?
Default $11.75 (29.4% of $39.99 price).
Default $15.3 — includes $1.6 returns reserve at 4%.
$12.94/unit · 32.4% (Excellent).
Default: $39.99 price · 15% referral · $5.40 FBA · $0.35 storage · $12.50 COGS → Amazon takes $11.75 (29.4%), net $12.94 (32.4% margin).
Revenue
$39.99
Amazon fees
$11.75
Your costs
$15.3
Net profit
$12.94
| Category | Rate | On $39.99 |
|---|---|---|
| Home, kitchen, most general | 15% | $6.00 on $39.99 |
| Apparel | 17% | $6.80 on $39.99 |
| Electronics accessories | 15% | Verify subcategory in Seller Central |
| Amazon Device Accessories | 45% | $18.00 on $39.99 |
| Books ( + closing fee ) | 15% + closing | Add closing fee to shipping field |
| Fee | Formula | Default |
|---|---|---|
| Referral | Price × Referral % | $6.00 (15%) |
| FBA fulfillment | Per-unit $ from size tier | $5.40 |
| Storage | Per-unit $ (monthly ÷ units or fee preview) | $0.35 |
| Plan fee | $0.99/sale Individual only | $0 Professional |
| Shipping/closing | Media / special categories | $0 |
| Margin | Label | Action |
|---|---|---|
| < 0% | Loss | Raise price or cut COGS/FBA fees before reordering |
| 0 – 7.9% | Low | Add PPC in FBA profit calculator — margin may go negative |
| 8 – 14.9% | Fair | Workable; optimize before heavy ad spend |
| 15 – 24.9% | Good | Typical FBA target band |
| ≥ 25% | Excellent | Default ~32% — strong before ads |
Amazon keeps a predictable fee stack; your margin depends on matching category referral %, correct FBA tier, and honest return assumptions — then validating with PPC in the companion FBA profit tool.
Amazon fees (platform take)
Your costs
Net = $39.99 − $11.75 − $15.3 = $12.94Margin = $12.94 ÷ $39.99 = 32.4%Amazon fees 29.4% of revenue · ROI 84.6% on your cost stack. Baseline for comparing plan, category, and fulfillment changes below.
Amazon fees $12.74 vs $11.75 — costs $0.99 more per unit on same SKU.
Margin 30.4% — category rate matters; always update referral field from Seller Central.
Amazon fees only $6 (referral) — add your ship-to-customer cost manually; FBM margin looks higher until outbound shipping is included.
Amazon fees $14.75 — $3.00 more than default; size tier drives profitability.
Amazon fees 39.0% of revenue — fixed FBA $5.75 hurts low-price SKUs. Individual at $ 19.99: net $2.25, margin 11.3% (plan fee dominates).
Share with Amazon sellers validating referral, FBA, and storage fees before launching SKUs.
Suggested hashtags: #AmazonFBA #AmazonSeller #Ecommerce #FBA #Calculator