Amazon Comparison
Amazon FBA vs. FBM – Which Fulfillment Model Is Better?
Overview
Choosing between FBA (Fulfillment by Amazon) and FBM (Fulfillment by Merchant) is one of the most important decisions for Amazon sellers. With FBA, Amazon handles the entire logistics chain – from storage and picking to packing, shipping, customer service, and returns. With FBM, the seller manages all of these processes themselves. Both models have clear strengths and weaknesses, and the right choice depends on factors like product type, margins, business volume, and long-term strategy. Many successful sellers even use a combination of both models to maximize their reach and profitability.
FBA (Fulfillment by Amazon)
With FBA, the seller ships their products to an Amazon fulfillment center. Amazon then handles the entire process: storage, picking, packing, shipping, customer service, and returns management. Products automatically receive the Prime badge and benefit from Amazon's fast delivery infrastructure.
Pros
- +Automatic Prime eligibility: Products receive the Prime badge and benefit from the massive reach of over 200 million Prime members worldwide.
- +Significant Buy Box advantage: FBA listings are favored by Amazon's algorithm and win the Buy Box more frequently, leading to more sales.
- +No own warehouse needed: Amazon handles storage and logistics, so you don't need your own warehouse space, warehouse staff, or shipping infrastructure.
- +Professional customer service around the clock: Amazon handles customer inquiries, returns, and refunds in the local language – 24 hours a day, 7 days a week.
- +Easy scalability: You can scale your business quickly without worrying about additional staff, larger warehouse space, or shipping capacity.
- +Access to Multi-Channel Fulfillment (MCF): Amazon can also fulfill orders from other sales channels like your own online store.
Cons
- -High fees: FBA fees include storage fees (monthly and long-term), per-unit fulfillment fees, inbound placement fees, and optional services – these can significantly reduce margins.
- -Little control over customer experience: You have no influence on packaging, inserts, or the overall unboxing experience, which makes brand building more difficult.
- -Storage limits and restrictions: Amazon enforces inventory limits (IPI score) and charges penalty fees for slow-moving products, especially during the Q4 peak season.
- -Dependency on Amazon: Your entire business is tied to Amazon's infrastructure. Changes to fees, policies, or warehouse processes can directly affect you.
- -Complex returns handling: Returns are generously accepted by Amazon, which can lead to higher return rates. Damaged or unsellable returns are often disposed of rather than returned to the seller.
FBM (Fulfillment by Merchant)
With FBM, the seller handles the entire order fulfillment process: storage, picking, packing, shipping, customer service, and returns management. Products are still listed on the Amazon marketplace, but the seller has full control over the fulfillment process.
Pros
- +Higher profit margins: Without FBA storage and fulfillment fees, you can achieve significantly higher margins – especially for lightweight, small, or high-value products.
- +Full brand control: You determine packaging, inserts, personalized messages, and the entire customer experience – ideal for brand building.
- +No Amazon storage limits: You are not bound by Amazon's inventory limits or IPI score and can hold as much inventory as you want.
- +Ideal for special products: Oversized, heavy, fragile, or custom-made products can often be shipped more cost-effectively and safely by the seller.
- +Direct customer contact: You have direct access to your customers and can build relationships, which is crucial for repeat purchases and brand loyalty.
- +Flexibility across sales channels: You can use the same warehouse and shipping infrastructure for Amazon, your own online store, and other marketplaces.
Cons
- -No automatic Prime badge: FBM products don't receive the Prime badge by default, which can significantly reduce visibility and conversion rates. Seller Fulfilled Prime (SFP) is available but comes with strict requirements.
- -Buy Box disadvantage: FBM listings have a harder time winning the Buy Box, especially when FBA competitors offer the same product.
- -High operational effort: You need to organize and finance warehouse space, staff, shipping materials, carrier contracts, and customer service yourself.
- -Harder to scale: Growth is limited by your own infrastructure. Rapid scaling requires significant investment in warehousing, staff, and processes.
- -Strict performance requirements: Amazon monitors shipping speed, on-time delivery, and cancellation rates. Falling below thresholds can lead to account suspensions.
Comparison Table
| Criterion | FBA (Fulfillment by Amazon) | FBM (Fulfillment by Merchant) |
|---|---|---|
| Costs and Fees | FBA fees per unit (approx. $2.50–$5.50 depending on size and weight) plus monthly storage fees ($0.75–$2.40/cu ft depending on season). Long-term storage fees for inventory over 181 days. | Only Amazon selling fees (commission). Own costs for warehouse, staff, shipping materials, and carriers. Often cheaper with an efficient setup, especially for lightweight or high-value products. |
| Prime Eligibility | Automatically Prime eligible. All FBA products receive the Prime badge and benefit from preferred placement over non-Prime offers. | Not Prime eligible by default. Seller Fulfilled Prime (SFP) is possible but requires a trial period and compliance with strict shipping and delivery metrics (e.g., 1-2 day delivery). |
| Buy Box Advantage | Significant advantage. Amazon's algorithm favors FBA offers for Buy Box placement, especially at the same price and rating. | Disadvantage compared to FBA. FBM offers generally need to offer a lower price or demonstrate superior seller metrics to win the Buy Box. |
| Scalability | Highly scalable. Amazon has a global network of fulfillment centers and can absorb massive volume increases – ideal for seasonal peaks. | Limited scalability. Growth requires own investment in warehouse space, staff, and processes. Infrastructure can become a bottleneck during rapid growth. |
| Control Over Fulfillment | Low. Amazon determines packaging, shipping speed, and handling. No individual branding of shipments possible (except Amazon Custom). | Complete. Full control over packaging, inserts, shipping carriers, and delivery times. Ideal for premium brands with a custom unboxing experience. |
| Customer Service | Amazon handles complete customer service in the local language: inquiries, complaints, refunds – around the clock. Significantly reduces seller workload. | The seller must respond to customer inquiries themselves (within 24 hours). Multilingual support is required for international sales. |
| Returns Handling | Amazon handles returns and automatically generates return labels. Downside: higher return rates due to generous return policy. Returned items can be classified as 'unfulfillable' and disposed of. | The seller handles returns themselves and can inspect, refurbish, and resell returned items. More control but also more effort. |
| International Expansion | Easy via Amazon's European Fulfillment Network (EFN/Pan-EU). Products can be stored and shipped across countries without own local logistics. | Complex and costly. The seller either needs local warehouses in each target country or must set up international shipping solutions, which can mean longer delivery times. |
| Profit Margin | Lower margin per unit due to FBA fees. However, often higher revenue through better visibility, Prime badge, and Buy Box advantage. Fees can significantly squeeze margins, especially on low-priced products. | Higher margin per unit possible, especially with efficient own logistics. However, higher fixed costs and potentially lower sales volume without the Prime badge. |
| Storage Limits | Amazon sets storage capacity limits based on the IPI score (Inventory Performance Index). Low scores result in severely restricted storage capacity. Particularly strict limits apply in Q4. | No restrictions from Amazon. You determine how much inventory you hold – limited only by your own warehouse capacity and budget. |
Our Recommendation
For most Amazon sellers, FBA is the better choice, especially if you're just starting out or want to scale quickly. The automatic Prime status, Buy Box advantage, and eliminated logistics complexity outweigh the higher fees in most cases. FBA is particularly suited for small to medium-sized products with healthy margins and high sales volume. FBM is the better option if you sell oversized or heavy products where FBA fees would be disproportionately high. It can also be more profitable for high-priced products with large margins, custom-made goods, or when you already have an established warehousing and shipping infrastructure. The best strategy for many advanced sellers is a hybrid model: fulfill core products via FBA and ship specialty products, oversized items, or slow-moving SKUs via FBM. This way, you combine the advantages of both models and minimize their respective disadvantages.
Frequently Asked Questions
Can I use both FBA and FBM at the same time?
Yes, you can use both models simultaneously and even create both an FBA and an FBM listing for the same product. Many sellers use FBA for their bestsellers and FBM as a backup when FBA inventory runs out, or for products that aren't suitable for FBA. This is called a hybrid strategy and is very common among advanced sellers.
What exactly does FBA cost and what fees are involved?
FBA fees consist of several components: fulfillment fees per unit (depending on size and weight, approx. $2.50–$5.50 for standard size), monthly storage fees (January–September: approx. $0.75/cu ft, October–December: approx. $2.40/cu ft), long-term storage fees for inventory over 181 days, inbound placement fees, and optional fees for labeling or prep. On top of this come the standard Amazon selling fees (referral fee of 8–15% depending on category). Use the Amazon FBA Revenue Calculator to calculate the exact costs for your product.
Is Seller Fulfilled Prime (SFP) a good alternative to FBA?
Seller Fulfilled Prime (SFP) allows FBM sellers to earn the Prime badge but sets very high requirements: you must pass a trial period, maintain an on-time delivery rate above 93.5%, guarantee a cancellation rate below 0.5%, and offer premium shipping options (1-2 day delivery). SFP is ideal for sellers with their own highly efficient logistics who want to maintain control over shipping while still needing Prime visibility. For most sellers, however, FBA is easier to manage.
How does the choice between FBA and FBM affect my Amazon ranking?
FBA products generally have higher visibility in Amazon search results because they are Prime eligible and Amazon's algorithm favors reliable delivery. FBA listings typically have a higher conversion rate (due to Prime trust), which in turn positively affects ranking. FBM offers can also rank well through excellent seller metrics, competitive pricing, and fast delivery times – it just requires more effort to achieve the same visibility.
What happens to my products when I switch from FBM to FBA (or vice versa)?
When switching from FBM to FBA, you need to ship your products to an Amazon fulfillment center and create new FBA offers (or convert existing listings). Your reviews and ratings are preserved as they are tied to the ASIN. When switching from FBA to FBM, you need to either have your FBA inventory returned or disposed of and activate an FBM listing. Plan the transition carefully to avoid sales interruptions – ideally, run both models in parallel during the transition period.
For which product types is FBM better suited than FBA?
FBM is particularly useful for: oversized or heavy products (where FBA fees would be disproportionately high), custom-made or personalized products (that cannot be pre-stored), products with very low sales volume (that would incur long-term storage fees), high-priced niche products with large margins (where savings on FBA fees outweigh losing the Prime badge), and fragile products that require particularly careful packaging.