Walmart Fulfillment Services and Fulfillment by Amazon do the same job: you send inventory to the marketplace, and it ships your orders. The differences are in fees, storage rules, who can join and which customers you reach. Here is how they compare, and when to use each.
What both programs do
Both store your inventory in the marketplace's warehouses, pick, pack and ship each order, and handle customer service and returns for those orders. Both make your listings eligible for fast-delivery promises, which help conversion.
Where they differ
Reach. FBA serves Amazon shoppers, including Prime members. WFS serves Walmart.com shoppers. Inventory in one program cannot fill the other marketplace's orders directly.
Fees. Both charge a per-unit fulfillment fee based on size and weight, plus monthly storage by volume. WFS storage costs $0.75 per cubic foot per month from January to September, with an extra $1.50 from October to December for items stored over 30 days. Amazon's storage rates also rise in the fourth quarter, so check its current rate card.
Long-term storage. Since June 30, 2026, WFS charges $2.25 per cubic foot per month for inventory stored 366 to 450 days and $7.50 beyond that. Amazon also adds surcharges for aged inventory.
Platform costs. Walmart charges no monthly fee. Amazon's Professional plan costs $39.99 a month. Both charge referral fees on every sale.
Getting in. Walmart reviews every seller application before you can list, while opening an Amazon seller account is more straightforward. And on Amazon, claims for lost or damaged FBA inventory must be filed within about 60 days and are paid at your manufacturing cost. See our FBA reimbursements guide.
When WFS makes more sense
WFS fits products that sell steadily on Walmart, where two-day delivery helps you win the sale and counts toward Walmart's Pro Seller badge. It also suits sellers who want Walmart growth without building their own fast-shipping operation. Read more in our WFS guide.
When FBA makes more sense
FBA fits products where Amazon is your main channel and Prime delivery helps you win the sale. It is also the only option if you want Amazon to fulfill your Amazon orders while you keep your own warehouse small.
Using both
Many growing sellers use both: FBA for Amazon orders and WFS for Walmart orders, each stocked with their fastest sellers. The work is in splitting inventory well. Keep one stock count for every product, send each warehouse only what it will sell within a few months, and watch storage age so nothing tips into long-term fees. Our multichannel inventory guide covers how.
Using FBA and WFS side by side?
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Questions sellers ask
Can FBA inventory fill Walmart orders?
Not directly. Units in Amazon's warehouses ship Amazon orders. Amazon's Multi-Channel Fulfillment can ship orders from other channels, but check Walmart's rules on packaging and carriers before using it for Walmart orders.
Is WFS cheaper than FBA?
It depends on the product's size, weight and how long it sits in storage. Compare the fulfillment fee and storage for your exact item in each marketplace's fee calculator, then add the referral fee. Our Walmart profit calculator and Amazon FBA calculator put it side by side.
Sources: Walmart Marketplace WFS fee guide, Amazon seller fee pages and FBA reimbursement policy updates, checked November 2026. Fees change, so confirm current rates in each seller account.