Amazon Shipping Explained: FBA, FBM, SFP, and How to Choose

What is Amazon shipping?

Amazon shipping is the umbrella term for how products get from a seller to a customer through the Amazon marketplace. Amazon offers three main programs, each with different cost, control, and Prime eligibility trade-offs. The right one depends on your volume, your margins, and how much you want Amazon involved in your operation.

Fulfillment by Amazon (FBA)

You ship inventory to Amazon fulfillment centers. Amazon stores it, picks it, packs it, and ships it to your customer. Amazon handles returns and customer service.

Pros: Prime badge, no warehouse needed, Amazon handles everything

Cons: highest fees (storage, fulfillment, long-term storage, removal), no inventory visibility outside Amazon, restocking fees on returns, lost units happen

FBA fees climbed again in 2026. See the full FBA fee picture.

Fulfillment by Merchant (FBM)

You ship from your own warehouse or a 3PL warehouse. You control the box, the packing, the carrier, and the timeline. No Prime badge unless you also qualify for SFP.

Pros: lower fulfillment cost, your packaging and branding, your inventory visibility, your customer relationship

Cons: no Prime badge by default, lower buy box win rate, you handle returns

FBM works best for high-margin products, oversized items where FBA fees are punishing, and brands that ship across multiple channels.

Seller Fulfilled Prime (SFP)

You ship from your own warehouse but with Prime delivery promises. Customer sees the Prime badge, you keep margin and control. Trade-off: you have to hit Amazon performance metrics or you lose SFP status.

Ship 99 percent of orders on time

Use Amazon-approved carriers (Buy Shipping)

Offer weekend pickup and delivery

Keep cancellation rate under 0.5 percent

Maintain on-time delivery rate above 93.5 percent

SFP works for sellers with reliable fulfillment operations and high-margin products. More on SFP rule changes.

How to choose between FBA, FBM, and SFP

The high-leverage decision factors:

Margin: low margin product (under 30 percent) usually cannot afford FBA fees

Velocity: fast-movers benefit from FBA storage; slow-movers get hit with long-term storage fees

Size: oversized items pay punishing FBA dim weight; FBM or SFP often cheaper

Returns rate: high-return categories (apparel, beauty) pay FBA returns fees; FBM gives more control

Multichannel: if you also ship Shopify, TikTok Shop, or DTC, FBM/SFP keeps inventory in one place

Amazon shipping costs by program

Rough cost ranges (your numbers will vary by category, weight, and size):

FBA fulfillment fee: $3.50 to $8 per unit small standard, more for oversized

FBA monthly storage: $0.87 to $2.40 per cubic foot, peak season Q4 surcharges apply

FBA long-term storage: $6.90 per cubic foot or more after 365 days

FBM via 3PL: $3 to $5 per unit pick-pack plus shipping at your negotiated rate

SFP via 3PL: similar to FBM cost plus the operational overhead of hitting Prime metrics

Why a 3PL beats FBA for some brands

A 3PL can be cheaper than FBA when:

Your margin is thin and FBA fees absorb 20 to 35 percent of revenue

You ship oversized or dim-heavy items

You sell across multiple channels (Shopify, TikTok Shop, retail)

You want branded packaging and inserts

Your inventory turns slowly and FBA long-term storage hits you

Many brands run a hybrid: FBA for fast-mover SKUs, 3PL for the long tail and the multichannel side.

How 3PL Center helps Amazon sellers

We fulfill Amazon FBM orders out of warehouses near both coasts (California and New Jersey), same-day ship cutoff at 2pm local. We also support SFP for brands that hit Amazon performance metrics. Multi-carrier rate shopping picks the cheapest route per ZIP. Real-time inventory sync back to Amazon so you never oversell. Dedicated account team for FBA prep and Amazon-compliant labeling.