You have orders coming in. Your spare bedroom is full of boxes. You are taping, labeling, and hauling packages to the post office three times a week. Something has to change.
So you start looking into outsourcing your fulfillment. And almost immediately, you land on two options: Amazon FBA and a third-party logistics provider.
Both will store your inventory. Both will pick, pack, and ship your orders. But that is where the similarities end.
Choosing between Amazon FBA and a 3PL is not just a logistics decision. It is a growth decision. The one you pick will shape your brand experience, your margins, and how much control you keep over your own business. Let’s walk through how each option works, what it really costs, and which one makes sense for your store.
What Is Amazon FBA and How Does It Work?
FBA stands for Fulfillment by Amazon. You ship your inventory to Amazon’s warehouses. When a customer places an order on Amazon, their team picks it, packs it, and ships it. They also handle customer service and returns for those orders.
The big draw is obvious. Your products become Prime eligible. With over 200 million Amazon Prime members in the United States alone, that is a massive audience that expects fast, free shipping. Prime-eligible products tend to convert at higher rates because shoppers trust the speed and reliability.
Here is a quick example. Say you sell a set of resistance bands. You ship 500 units to an Amazon fulfillment center in Texas. A customer in Ohio orders a set on Tuesday afternoon. Amazon picks it off the shelf, boxes it up, and delivers it by Thursday. You never touch the order. That is the promise of FBA.
But the convenience comes with strings attached. Big ones.
What Is a 3PL and How Is It Different?
A third-party logistics provider is a company you hire to handle your warehousing, picking, packing, and shipping. Unlike FBA, a 3PL works across all your sales channels. Your Shopify store, your Amazon listings, your wholesale orders, your Etsy shop. Everything flows through one fulfillment partner.
Think of it this way. FBA is built to serve Amazon. A 3PL is built to serve your business.
When you work with a 3PL like Selery Fulfillment, your products ship in your branded packaging, with your inserts, and your packing slips. The customer experience belongs to you. With FBA, every order arrives in an Amazon-branded box. Your brand disappears behind the smile logo.
That distinction matters more than most sellers realize early on. But the deeper you get into building a direct-to-consumer brand, the more it stings.
The Real Cost of Amazon FBA
Amazon’s fee structure is famously complex. And it keeps changing. In 2025, Amazon held fulfillment fees steady from the prior year, but sellers still face a layered system of charges that can quietly eat into margins.
Here is what you are paying with FBA. Fulfillment fees range from about $3.22 per unit for small, lightweight items up to $89.98 for large, oversized products. Those fees cover picking, packing, and shipping. On top of that, you pay monthly storage fees of $0.78 per cubic foot from January through September. During peak season from October through December, that jumps to $2.40 per cubic foot.
And that is just the beginning. Amazon also charges referral fees, usually around 15% of the sale price depending on your product category. If your inventory sits longer than 180 days, you start getting hit with aged inventory surcharges. There are inbound placement fees if Amazon has to redistribute your inventory across their network. Unplanned prep fees if your products arrive without proper labeling. Return processing fees if your category has a high return rate.
Let’s put some numbers to it. Say you sell a product for $30. Your cost of goods is $8. After Amazon’s referral fee (roughly $4.50), fulfillment fee (around $5), and storage costs, you might clear $10 to $12 per unit. That is before advertising, which most Amazon sellers now consider mandatory to stay visible.
For a small seller shipping 100 to 200 units a month, total FBA costs can run $215 to $875 per month. Medium sellers moving 500 to 2,000 units might spend $1,500 to $6,000 or more. At scale, the fees compound fast.
What Does a 3PL Actually Cost?
The pricing model for a 3PL fulfillment service is fundamentally different from FBA. Instead of a fixed, one-size-fits-all fee schedule, most 3PLs offer pricing that adjusts based on your volume, product type, and specific needs.
Typical 3PL costs include storage fees (usually charged per pallet, shelf, or bin), pick and pack fees (a per-order charge for assembling and packaging your order), and shipping costs (often at discounted carrier rates because of the 3PL’s bulk volume).
The average cost for a 3PL to handle an order in 2025 runs between $3 and $8 per unit, depending on the provider and complexity. That might sound similar to FBA at first glance. But here is the difference: you are not also paying a 15% referral fee on every sale. You are not paying peak season storage surcharges. And you are not competing with Amazon’s own products on their platform.
Many ecommerce brands find that switching to a 3PL saves them 20% or more on fulfillment costs compared to FBA, especially once they factor in the hidden fees that accumulate over time. If you want to see what a transparent fulfillment pricing model looks like, it is worth requesting a quote and comparing it against your current FBA spend line by line.
Where FBA Wins
Let’s be fair. Amazon FBA has real advantages that a 3PL cannot always match.
The biggest one is Prime eligibility. If Amazon is your primary or only sales channel, FBA gives your listings the Prime badge. That matters. Shoppers filter by Prime. They trust it. And Prime-eligible products consistently convert better than non-Prime alternatives.
FBA also handles customer service and returns for Amazon orders. If a customer wants to send something back, Amazon manages the entire process. You do not have to staff a support team for those transactions.
For brand-new sellers with small catalogs and limited experience, FBA offers a low-friction entry point. You send your inventory in, Amazon does the rest. There is no warehouse to manage, no shipping software to configure, no carrier relationships to negotiate. It is plug and play.
If you are just getting started on Amazon and your primary goal is testing a product in the market, FBA makes sense. It removes logistics from your plate so you can focus on product development and marketing.
Where a 3PL Wins
Once your business grows beyond Amazon, the calculus shifts. And for many ecommerce brands, it shifts fast.
A 3PL gives you something FBA never will: control.
You control the packaging. You control the unboxing experience. You control which channels you sell through, and how orders from each channel get fulfilled. Want to ship subscription boxes with custom inserts and seasonal packaging? A 3PL handles that. FBA does not.
Here is where this gets practical. Say you run a skincare brand. You sell on your own Shopify store, on Amazon, and through a few retail partners who place wholesale orders. With a 3PL, all of that inventory lives in one place. Orders from every channel get picked, packed, and shipped from the same warehouse. Your Shopify customers get your branded box with a thank-you card and samples. Your Amazon orders ship in standard packaging to meet their requirements. Your wholesale orders get palletized and sent to retail distribution centers.
Try doing that with FBA. You can not.
A 3PL also gives you a dedicated account manager. Someone who knows your business, answers the phone, and helps you plan for seasonal spikes. With Amazon, you get a call center. Good luck getting the same person twice.
For brands that need kitting and assembly services, a 3PL is the clear choice. Whether you are building gift sets, bundling products, or assembling subscription kits, a good fulfillment partner can handle the complexity that FBA simply was not designed for.
The Branding Problem with FBA
This deserves its own section because it is that important.
When you use FBA, every order ships in Amazon’s packaging. The brown box with the arrow logo. The packing slip with Amazon’s branding. Your customer bought from you, but the experience says Amazon.
Why does that matter? Because your brand is the most valuable asset you own. Every touchpoint with your customer is a chance to reinforce who you are and why they should come back. When that touchpoint gets handed off to Amazon, you lose it.
Think about the brands you love. The ones where opening the box feels like an event. The tissue paper, the sticker, the handwritten note. Those details build loyalty. They turn one-time buyers into repeat customers. They generate the kind of unboxing content on social media that no ad budget can buy.
With FBA, all of that vanishes. Your product shows up in a generic box, maybe with an air pillow tossed in. It works for delivery. It does nothing for your brand.
If you are building a business you want to own for the long term, brand experience is not optional. It is the foundation. A 3PL ecommerce fulfillment partner lets you keep that foundation intact.
The Scalability Question
Here is something sellers do not think about until it becomes a problem. FBA has inventory limits.
Amazon caps how much inventory you can store in their fulfillment centers based on your Inventory Performance Index score. If your IPI drops below 500, your storage limits get cut. During peak season, when you need to stock up the most, those limits can feel like a chokehold.
And because Amazon controls the warehouse, you cannot negotiate. You cannot call someone and say, “We have a big launch coming, we need extra space.” You either qualify for more capacity or you do not.
A 3PL scales with you. If you need to double your inventory ahead of a product launch or holiday season, you call your account manager and work it out. The flexibility is built into the relationship. Your fulfillment partner grows when you grow, not when an algorithm says you are allowed to.
For brands that experience seasonal demand swings or rapid growth, this flexibility is not a nice-to-have. It is a requirement.
The Hybrid Approach: Using Both FBA and a 3PL
Here is something smart sellers are starting to figure out: you do not have to choose one or the other.
A hybrid fulfillment strategy lets you use FBA for your Amazon sales while routing everything else through a 3PL. Your Amazon customers get the Prime experience. Your DTC customers get your branded experience. And you keep one central inventory hub with your 3PL, replenishing Amazon as needed.
Some brands take this further. They keep their fastest-selling SKUs in FBA for the Prime advantage and route slower-moving or oversized inventory through their 3PL fulfillment partner to avoid Amazon’s steep long-term storage fees.
A good 3PL can even help with FBA prep. Labeling, poly-bagging, and bundling products to meet Amazon’s strict inbound requirements before sending them to FBA warehouses. This saves you from compliance penalties and rejected shipments.
The hybrid model works especially well for brands doing $500,000 or more in annual revenue across multiple sales channels. You get the best of both worlds without locking yourself into one system.
How to Decide: FBA or 3PL for Your Online Store
The right choice depends on where your business is and where you want it to go. Here are the questions to ask yourself.
Is Amazon your only sales channel? If yes, and you are early stage, FBA is probably the simpler path. But if you sell on Shopify, Etsy, or through wholesale, a 3PL gives you the multi-channel fulfillment you need.
How important is your brand experience? If custom packaging, inserts, and a memorable unboxing matter to your customers, a 3PL is the way to go. FBA strips that away entirely.
Are you growing fast? If your order volume is climbing and you need a partner that adapts to your pace, a 3PL offers the flexibility that FBA’s rigid system cannot match.
Do your products need special handling? Fragile items, temperature-sensitive goods, oversized products, or anything that requires kitting and assembly will be better served by a 3PL with expertise in those areas.
What are your real costs? Pull your Amazon fee reports and add up everything. Referral fees, fulfillment fees, storage, aged inventory surcharges, return processing. Then compare that total to a 3PL quote. The gap might surprise you.
Making the Move
Switching from FBA to a 3PL, or adding a 3PL alongside FBA, does not have to be complicated. The process typically starts with a conversation about your product catalog, order volume, sales channels, and growth plans.
A good fulfillment partner will walk you through integration with your ecommerce platform, whether that is Shopify, WooCommerce, BigCommerce, or Amazon itself. They will set up your inventory, configure your shipping preferences, and handle the transition so you never miss an order.
The brands that thrive are the ones that treat fulfillment as a strategic advantage, not just a cost center. Your fulfillment partner should make your customers happier, your operations smoother, and your margins stronger.
If you are ready to explore what a 3PL can do for your ecommerce business, get a free quote from Selery Fulfillment and see how a dedicated fulfillment partner compares to doing it all through Amazon. Your store, your brand, your rules.