How to Calculate Amazon FBA Profit Margins

ShelfKeeper Knowledge Base by ARJE Bookkeeping

⚡ Quick Answer

To calculate Amazon FBA profit margins, subtract all costs (product cost, FBA fees, referral fees, shipping, advertising, and overhead) from your revenue, then divide by revenue. A healthy FBA profit margin is typically 15-30% after all expenses.

Overview

Learn how to accurately calculate your Amazon FBA profit margins by accounting for all fees, COGS, shipping costs, and overhead expenses.

Frequently Asked Questions

What is a good profit margin for Amazon FBA?

A good profit margin for Amazon FBA is typically between 15-30% after all expenses. Top sellers aim for 25%+ net margins. Margins below 10% may not be sustainable long-term after accounting for all costs.

How do I calculate FBA fees into my profit margin?

FBA fees include fulfillment fees (pick, pack, ship), monthly storage fees, and referral fees (typically 15%). Use Amazon's Revenue Calculator to estimate total FBA fees per unit, then subtract from your selling price along with COGS.

Should I include advertising costs in profit margin calculations?

Yes, always include advertising costs (PPC/ACoS) in profit margin calculations. Many sellers overlook this, leading to inflated profit estimates. Track your TACoS (Total Advertising Cost of Sale) for the most accurate picture.

How often should I recalculate my profit margins?

Recalculate profit margins monthly at minimum, and after any price changes, fee updates, or supplier cost changes. Use a tool like ShelfKeeper to automate this tracking in real-time.

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Arnold Dizon

Founder of ARJE Bookkeeping • Amazon FBA Financial Expert

Helping Amazon sellers master their finances with ShelfKeeper.