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Amazon FBA Fee Calculator | 2026 Rates & Profit

Calculate 2026 Amazon FBA fulfillment and 15% referral fees. See your exact net profit per unit and break-even ROAS to protect your e-commerce margins.

Last updated: October 2026•Reviewed by: Aaradhya Pathak (Co-Founder & Lead Dev)
E-Commerce Selling Channel

Unit Economics & Landed Cost Breakdown

Landed Cost: $13.70
$
$
$
$
$
Retail Price Presets:
Net Profit / UnitProfitable
$8.04
Landed: $13.70
Net Margin %Target
20.11%
Markup: 25.2%
Break-Even ROASTarget
2.49x
Multiplier
Platform / PickFee
-$10.25
Amazon FBA

Unit Economics Waterfall ($39.99 Retail)

Distribution of gross customer payment across costs, advertising, platform fees, and net profit

20.1% Net Take-Home
Profit:$8.04
COGS:$10.00
Freight/Prep:$3.70
Ad Spend:$8.00
Platform:$10.25

Cross-Channel Profit Comparison (at $39.99 volume)

Exact difference in take-home cash when selling this exact product on other channels (click any to switch)

Monthly Scale Projections (Amazon FBA)

Projected net earnings based on your current unit economics

100 Units / mo
$804.15
Gross: $3,999.00
500 Units / mo
$4,020.75
Gross: $19,995.00
1,000 Units / mo
$8,041.50
Gross: $39,990.00
5,000 Units / mo
$40,207.50
Gross: $199,950.00

E-Commerce Unit Economics & Break-Even ROAS Algebra

How to accurately compute true landed costs, platform referral commissions, and maximum allowable CAC

Break-Even ROAS Calculation Formula

Break-Even ROAS represents the exact advertising return required for a product sale to generate zero net profit or loss:

Break-Even ROAS = Retail Price / (Retail Price - Non-Ad Costs)

If a product sells for $50 and landed COGS + marketplace fees total $25, your gross contribution is $25, meaning your target ROAS must exceed 2.00x to achieve positive cash flow.

Margin % vs. Markup % Distinction

Conflating margin and markup is the #1 reason e-commerce brands misprice products and run out of working capital:

  • Net Margin %: (Net Profit / Selling Price) × 100. Margin can never exceed 100%.
  • Markup %: (Net Profit / Total Cost) × 100. A product costing $20 and sold for $60 has a 200% markup and a 66.7% margin.

Technical Breakdown & Formula Specifications

Transparent mathematical reference and standardized volume benchmarks

Mathematical Formula & Calculation Logic

KaTeX Formatted
Net Profit=Price−(Landed Cost+Platform Fees+Fulfillment+CAC)Break-Even ROAS=PriceGross Contribution\begin{gathered} \text{Net Profit} = \text{Price} - (\text{Landed Cost} + \text{Platform Fees} + \text{Fulfillment} + \text{CAC}) \\[10pt] \text{Break-Even ROAS} = \frac{\text{Price}}{\text{Gross Contribution}} \end{gathered}

Calculates 2026 Amazon FBA referral commission (standard 15%), pick-and-pack fulfillment fees, landed product costs, and advertising CAC to determine exact unit margin and break-even ROAS.

Monthly Scale Projections & Profit Matrix

Compare expected deductions across typical commercial ticket sizes

Live Matrix
Monthly VolumeTotal Costs & SpendNet Profit EarnedEffective Rate
100 Units / mo-$2,315.97$1,683.0342.1% margin
500 Units / mo-$11,579.85$8,415.1542.1% margin
1,000 Units / mo-$23,159.71$16,830.2942.1% margin
5,000 Units / mo-$115,798.55$84,151.4542.1% margin

Amazon FBA Fee Calculator — Frequently Asked Questions

Authoritative answers to common questions, regulatory rules, and compliance guidance.

What are the 2026 Amazon FBA fee changes?
2026 Amazon FBA rates include updated size-tier fulfillment rates, a low-inventory-level fee for products with under 28 days of supply, and inbound placement service fee options.
How much is the Amazon referral fee?
Amazon charges a standard referral commission of 15% for most retail categories, ranging between 8% and 20% depending on the specific product category.
How do I calculate Amazon FBA net profit per unit?
Subtract landed COGS, inbound shipping, Amazon referral fee (typically 15%), FBA fulfillment pick-and-pack, and advertising cost per sale (CAC) from the retail selling price.
What is the difference between profit margin and markup percentage?
Profit margin is profit divided by revenue (the percentage of sales retained as profit). Markup is profit divided by cost of goods sold (how much cost is marked up to establish the selling price). A 50% markup produces a 33.3% gross margin.
What is considered a good gross profit margin for a business?
Benchmark gross margins vary by industry: SaaS and digital products typically achieve 70% to 85%, wholesale e-commerce averages 35% to 50%, and retail or grocery stores typically operate between 20% and 30%.

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