How to Calculate Amazon FBA Fees

Picture of Adam Hindle

Adam Hindle

Managing Director

Date

17/12/2024

Time to Read

4 Minutes

amazon fulfilment warehouse

If you are an Amazon seller or planning to start selling on Amazon, understanding Amazon FBA fees is essential for your success.

Amazon FBA (Fulfillment by Amazon) offers a convenient way to handle storage, picking, packing, shipping, and even customer service for your products.

However, these services come with various fees that can add up quickly.

Knowing how to calculate Amazon FBA fees will help you manage your costs, set competitive prices, and maintain profitability.

In this blog post, we will break down the Amazon FBA fees, explain why calculating these costs matters, and provide actionable steps to determine them using tools like the Amazon FBA calculator. Let’s dive in!

What is Fulfilled by Amazon (FBA)?

large amazon warehouse
Fulfillment by Amazon (FBA) is a service that allows sellers to leverage Amazon’s network of warehouses and logistics for their order fulfillment. Here’s how it works:

  1. You send your products to Amazon’s fulfillment centers
  2. Amazon stores your products in their warehouses
  3. When a customer places an order, Amazon picks, packs, and ships the product
  4. Amazon also handles returns, refunds, and customer service

The FBA program provides convenience and access to Amazon Prime’s fast shipping benefits, making it a popular choice for sellers.

Why Sell Through Amazon FBA?

Selling through Amazon FBA comes with several benefits that make it worth the investment:

1. Amazon’s Reputation

Customers trust Amazon for reliable and timely delivery. Using FBA allows you to benefit from Amazon’s strong reputation.

2. Fast and Efficient Shipping

With Amazon Prime, you can offer two-day (or faster) shipping, meeting modern customers’ expectations.

3. Hands-Off Fulfillment

Amazon takes care of the picking, packing, shipping, and customer returns. This allows you to focus on growing your business.

4. Scalable Operations

Whether you sell 10 products or 10,000, FBA can scale to meet your needs without requiring additional resources from you.
While these benefits are significant, they come at a cost. Calculating your FBA fees ensures you can determine if the program makes financial sense for your business.

Reasons to Calculate Your Amazon FBA Fees

Understanding and calculating your Amazon FBA fees is essential for several reasons:

1. Profitability Analysis

Knowing the fees helps you determine the true cost of selling a product and calculate your profit margins accurately.

2. Cost Management

By understanding all applicable fees, you can control your costs and identify areas to reduce expenses.

3. Competitive Pricing

Accurately factoring in your costs allows you to price your products competitively while maintaining profitability.

4. Inventory Management

Storage fees can increase if your products sit unsold. Calculating fees will help you manage inventory levels efficiently.

5. Cash Flow Planning

Calculating fees helps forecast expenses, ensuring you have enough cash flow to sustain your business.

By staying on top of your FBA fees, you can make informed decisions to keep your business profitable.

What are the Different Types of Amazon FBA Fees?

Amazon FBA fees can be broken down into several categories. Here are the most common ones:

1. Fulfillment Fees

Fulfillment fees cover the cost of picking, packing, and shipping your products. These fees are determined by the size and weight of your product.

2. Storage Fees

  • Monthly Storage Fees: Charged per cubic foot of storage space used
  • Long-Term Storage Fees: Applied to inventory stored for more than 181 days

3. Return Processing Fees

For product categories like apparel and shoes, you are charged a fee for handling customer returns.

4. Removal and Disposal Fees

If you want to retrieve or dispose of unsold inventory, Amazon charges a per-item fee.

5. Unplanned Service Fees

If you fail to meet Amazon’s prep requirements (e.g., labeling or packaging), Amazon will charge a fee to fix the issue.

6. Other Fees

Additional costs include:

  • Inventory overage fees for exceeding storage limits
  • Inbound placement service fees for distributing products to multiple warehouses

By understanding these fees, you can accurately calculate the total cost of selling through FBA.

How Much Does Amazon FBA Cost?

Amazon FBA costs vary depending on several factors:

  1. Product Dimensions and Weight: Larger and heavier products incur higher fulfillment fees
  2. Seasonality: Storage fees increase during peak seasons (e.g., holidays)
  3. Product Category: Different categories may have varying referral fees and return rates
  4. Storage Duration: Products stored for extended periods incur long-term storage fees


For example:

  1. Standard-size products under 1 lb might have a fulfillment fee of around $3.00
  2. Oversized items could have fulfillment fees exceeding $10 per unit


Amazon provides rate cards on its Seller Central platform for reference. You can also use tools like the FBA calculator to estimate costs

How to Calculate Amazon FBA Seller Fees

Calculating your FBA fees might seem complex, but it becomes straightforward when you break it into steps. Here’s how to do it:

Step 1: Use the Amazon FBA Calculator

Amazon provides an FBA Revenue calculator to help sellers estimate fees. Here’s how to use it:

  1. Find the product you want to sell on Amazon
  2. Enter your product details, such as dimensions, weight, selling price, and shipping costs
  3. Compare self-fulfillment versus Amazon FBA to see the estimated net profit

Step 2: Factor in Referral Fees

Referral fees are typically 8% to 15% of your product’s sale price, depending on the category.

Formula: Selling Price x Referral Fee % = Referral Fee

Step 3: Include Fulfillment Fees

Fulfillment fees depend on your product’s size tier and weight. Use the FBA rate card or calculator for accuracy.

Step 4: Add Storage Fees

Calculate monthly storage fees based on your product’s cubic footage and the time of year.

Formula: Cubic Footage x Storage Fee Rate = Monthly Storage Fee

Step 5: Subtract All Costs

To find your profit, subtract all Amazon FBA fees and other expenses (e.g., shipping, manufacturing) from your selling price.

Formula: Selling Price – (Referral Fee + Fulfillment Fee + Storage Fees + Other Costs) = Net Profit

By following these steps, you can get a clear picture of your total costs and profits.

Other Amazon FBA Costs to Consider

Besides the standard fees, here are other costs you should keep in mind:

  1. Product Inventory: Ensure you have enough stock for restocking periods
  2. Shipping Costs: Includes the cost of sending inventory to Amazon’s fulfillment centers
  3. Amazon PPC Advertising: Pay-per-click ads to promote your products
  4. Branding and Packaging: Costs for product branding, logos, and packaging materials
  5. Product Research Tools: Paid software to identify profitable products to sell


These additional costs are essential to include when calculating overall profitability.

How to Minimize or Avoid Amazon FBA Fees

Here are actionable tips to reduce your FBA costs:

1. Manage Inventory Efficiently

Avoid long-term storage fees by regularly reviewing inventory health reports. Remove slow-moving products before they incur additional charges.

2. Automate Inventory Management

Use inventory management tools to prevent overstocking or stocking out, which can result in unnecessary fees.

3. Optimize Packaging

Keep your product size and weight as low as possible to reduce fulfillment fees.

4. Plan Ahead for Peak Seasons

Keep your product size and weight as low as possible to reduce fulfillment fees.

5. Keep Checking the FBA Calculator

Regularly calculate your FBA fees to spot areas where you can save money.

By implementing these strategies, you can lower your costs and maximize your profits.

Amazon FBA FAQs

What is the Amazon FBA calculator?

The Amazon FBA calculator is an online tool that helps sellers estimate FBA fees, including fulfillment, storage, and referral fees. It allows you to compare FBA costs with self-fulfillment options.

FBA fees are based on product size, weight, storage duration, and other factors. 

FBA fees can be worth it for sellers who want to save time and offer faster shipping. However, you must calculate costs carefully to ensure profitability.

Regularly monitor your inventory and remove slow-moving products before they hit the 181-day mark to avoid long-term storage charges.

In Seller Central, go to Reports > Detail Page Sales and Traffic by Child Item to view your Buy Box percentage for each product.

The main fees include fulfillment fees, storage fees, referral fees, return processing fees, and removal/disposal fees.

Understanding how to calculate Amazon FBA fees is critical for managing costs and maximizing profits. By using tools like the FBA calculator, sellers can simplify fee calculations, set competitive prices, and plan their cash flow effectively.

Remember to stay on top of your inventory and identify cost-saving opportunities to make the most of Amazon’s FBA program.

If you’re ready to take control of your Amazon business, get in touch with our award-winning team to discuss your strategy.

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