MarginSolver
Multi-Channel Strategy2026–2027 fee schedule

FBA vs FBM vs Shopify Multi-Channel Comparison Matrix

Compare net payout, profit margins, and fulfillment costs across Amazon FBA, Merchant Fulfilled (FBM), and Shopify DTC side-by-side.

Cross-channel product assumptions

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Amazon FBA (Prime)
$11.79net / unit
Margin: 33.7%
  • Referral fee (15%):$5.25
  • FBA fulfillment fee:$4.85
  • Amazon PPC:$5.25
Optimal fit: Highest organic search velocity and Prime buyer conversion.
Amazon FBM (Merchant)
$9.79net / unit
Margin: 28%
  • Referral fee (15%):$5.25
  • Carrier postage + pack:$7.20
  • Amazon PPC:$5.25
Optimal fit: Bulky or hazmat merchandise with heavy FBA weight surcharges.
Shopify DTC store
$7.98net / unit
Margin: 22.8%
  • Zero referral fee:$0.00 saved
  • Payment gateway (2.9% + 30¢):$1.31
  • Direct CAC:$12.00
  • Break-even DTC ROAS:1.75x
Optimal fit: Products with strong repeat purchase frequency and subscription potential.
Methodology and formula

The Multi-Channel Payout Equation

Traffic Acquisition vs. Platform Commissions

Selling on Amazon gives you access to hundreds of millions of high-intent Prime shoppers, but costs 15% in referral fees plus fulfillment fees. Shopify provides complete customer data and repeat brand value, but requires rigorous ROAS discipline.

Hybrid Fulfillment Strategies

Leading e-commerce operators use FBA for rapid Amazon customer fulfillment and utilize Multi-Channel Fulfillment (MCF) or dedicated 3PLs to fulfill Shopify orders from the same central inventory pool.

Frequently asked questions

Does Shopify always have higher profit margins than Amazon FBA?

Shopify eliminates Amazon's 15% referral fee and charges only 2.9% + 30¢ for payments, but requires you to pay your own customer acquisition cost (CAC) on Meta/Google Ads and own 3PL fulfillment postage.

When is FBM more profitable than FBA on Amazon?

FBM is typically more profitable for heavy, bulky, or fragile items where commercial ground shipping is substantially cheaper than Amazon's oversize FBA fulfillment rates.

Return to master Amazon FBA profit calculator