Fulfilment by Amazon, or FBA, is one of the main reasons selling on Amazon is so appealing. Instead of handling storage, packing, and shipping yourself, you send your inventory to Amazon and they take care of fulfilment.

FBA simplifies operations, but the costs need to be clearly understood before you commit. This guide explains how FBA works, what you pay for, and how to get started. If you are planning to move forward after understanding the basics, this is where most sellers begin their setup process.

What Is Amazon FBA?

FBA stands for Fulfilment by Amazon. Here is how it works in simple terms:

• You send your products to an Amazon fulfilment center

• Amazon stores your inventory in their warehouse

• When a customer places an order, Amazon picks, packs, and ships it

• Amazon handles customer service and returns for FBA orders

Your role shifts to product selection, listing optimization, and marketing, while Amazon handles fulfilment.

FBA orders are also eligible for Prime delivery, which is a significant advantage. Prime eligibility can improve conversion rates by increasing delivery speed and buyer trust.

How Amazon FBA Works in Practice

Step 1: Enroll in FBA

In your Seller Central account, go to the FBA section and sign up. There is no upfront cost to enrol. You pay fees only when you use the service.

Step 2: Prepare Your Products

Amazon has specific packaging and labelling requirements. Each unit needs an Amazon barcode label, and products must be packaged to prevent damage during shipping and storage.

Step 3: Create a Shipping Plan

In Seller Central, specify what products you are sending, how many units, and the box dimensions. Amazon will assign a fulfilment center and provide shipping labels.

Step 4: Ship to Amazon

You can ship your products to the fulfilment center yourself or use a freight forwarder. For international shipments, it is best to work with a forwarder experienced in Amazon shipments.

Step 5: Amazon Receives and Stores Inventory

Once the shipment is received, Amazon checks in the inventory and stores it. Products become available for sale once processing is complete. Processing times vary depending on the fulfilment center and shipment volume.

Step 6: Customer Orders

When a customer places an order, Amazon picks the item, packs it, and ships it. Prime-eligible orders generally benefit from faster delivery times.

Step 7: Customer Service

Amazon handles post purchase customer service for FBA orders, including returns and refunds. This reduces the operational workload for sellers.

The Main Amazon FBA Fees to Expect

FBA is not free. Amazon charges several types of fees, and these need to be factored into your pricing and margins.

• Referral Fee: Amazon charges a percentage of the selling price on every sale, whether you use FBA or not. This typically ranges from around 8 percent to 15 percent depending on the product category, with many categories falling at the higher end.

• Fulfilment Fee: This covers picking, packing, and shipping. It is based on the size and weight of your product. For example, a small standard size item may incur a fulfilment fee in this range, but actual costs depend on size tier, weight, and marketplace.

• Monthly Storage Fee: Amazon charges for the space your inventory occupies in its warehouse. Standard rates apply for most of the year, with higher rates during peak periods such as the final quarter of the year.

• Long Term Storage Charges: Inventory that remains in Amazon’s warehouse for extended periods may incur additional storage charges, depending on how long it has been held and the current fee structure.

• Removal and Disposal Fees: If you need to remove unsold inventory from Amazon’s warehouse, you will be charged per unit. These fees are relatively small but can add up when clearing larger quantities.

How to Estimate Your Real FBA Costs

Before committing to a product, calculate your full cost structure. Amazon provides an FBA calculator in Seller Central that estimates fees based on:

• Product selling price

• Product dimensions and weight

• Category referral fee

• Fulfilment and storage costs

These estimates should be treated as directional only, as actual fees can vary based on product details and marketplace updates.

Here is a simplified example for a standard size product:

• Selling price: AED 100

• Referral fee: AED 15

• Fulfilment fee: AED 10

• Storage cost per unit: AED 0.50

• Total Amazon related costs: approximately AED 25.50

• Remaining revenue before other costs: AED 74.50

From this amount, you still need to account for product cost, shipping to Amazon, and advertising spend.

Many new sellers underestimate how quickly fees and advertising costs can reduce margins if pricing is not planned carefully. This is often where sellers need the most guidance, especially when validating product ideas and planning their first launch.

Many sellers aim for a margin buffer after all costs, but the acceptable level depends on your category, competition, and advertising strategy.

Small miscalculations at this stage can compound quickly once advertising and storage costs are added.

What to Look For in Products Before Using FBA

Before using FBA for a product, consider whether it fits the model from a cost and logistics perspective. Products with tight margins or unpredictable demand tend to struggle with FBA due to fee pressure and storage risk.

Products that tend to work well with FBA are:

• Compact and lightweight, which keeps fulfilment fees lower

• Priced with enough margin to absorb fees and advertising costs

• Consistent in demand, reducing the risk of long-term storage charges

• Easy to store and ship without special handling requirements

Products that are oversized, fragile, or slow-moving may require a different fulfilment approach.

FBA vs FBM: Which Should You Choose?

FBM stands for Fulfilment by Merchant, where you manage storage, packing, and shipping yourself.

Choose FBA if:

• You want Prime eligibility

• You do not have your own logistics setup

• You prefer Amazon to handle customer service and returns

• You want to simplify fulfilment as you scale

Choose FBM if:

• Your products are large or heavy and incur higher fulfilment fees

• You already have a warehouse and fulfilment capability

• You sell slower moving products that could accumulate storage costs

• You want more control over packaging and delivery experience

For many sellers, the combination of Prime eligibility and outsourced fulfilment makes FBA a simpler option to start with.

The right choice often comes down to how your margins, product size, and fulfilment complexity interact rather than one model being universally better.

Practical Tips for Your First FBA Shipment

1. Start with a manageable inventory level instead of committing to large volumes immediately. This allows you to test demand and refine your process.

2. Follow Amazon’s packaging and labelling requirements carefully. Incorrect preparation can lead to delays or additional charges.

3. Use a freight forwarder experienced with Amazon shipments, especially for international sourcing.

4. Monitor inventory levels closely to avoid stockouts that can affect ranking and sales momentum.

5. Send inventory based on your sales velocity and replenishment lead time. This helps control storage costs.

6. Be aware that storage fees can increase during peak periods, so plan inventory accordingly.

Common FBA Mistakes

• Underestimating total costs by excluding advertising, shipping, and storage impact

• Sending too much inventory and incurring unnecessary storage charges

• Ignoring Amazon’s preparation requirements, leading to delays or penalties

• Not monitoring inventory performance or reimbursement reports

Is Amazon FBA Worth It for New Sellers?

FBA can be a highly effective fulfilment model for e-commerce sellers. It provides access to Amazon’s logistics network, faster delivery options, and reduced operational workload.

However, it requires careful cost management and inventory planning. It is not a fully passive system, and profitability depends on understanding your numbers and maintaining control over your supply chain.

FBA works best when your margins can absorb fees and your inventory is managed carefully.

If you want support with setting up FBA, validating product margins, or planning your first shipment, Amazon Sellers Society can guide you through the process. You can learn more about how we support sellers across the region. We work closely with sellers to validate products, plan margins, and structure launches before inventory is committed.

Frequently Asked Questions