Walmart WFS vs Amazon FBA-Which Is Better for Growing Your Business?

You’ve got inventory sitting somewhere, and two logistics giants are asking for it. One promises the biggest audience on the internet. The other promises to leave more margin in your pocket. Pick wrong, and you either drown in fees or starve for traffic — and by the time you notice, you’ve already paid for a few thousand units of shipping to find out.

Here’s the short version, then the long version with the numbers behind it.

	Amazon FBA	Walmart WFS
Best for	Sellers who need volume and are ready to compete	Sellers who want lower fees and less competition
Active sellers	~9.7 million globally	~200,000+
Referral fees	15–18% average	12–15% average
Storage/fulfillment fees	Higher, spikes hard in Q4	Lower, more stable
Monthly visitors	3.1 billion+	~145 million
Ad spend needed	Often 8–15% of revenue	Often under 3%
International selling	Yes, mature network	U.S. only
Setup difficulty	Easier, faster approval	Stricter, needs EIN + business docs

If you sell one SKU and want the fastest path to sales, start with FBA. If margins are already thin and you can’t afford a bidding war, WFS is the one that keeps you profitable longer. Most established sellers eventually run both — more on that below.

What Each One Actually Does

Fulfillment by Amazon (FBA) is Amazon’s own warehousing and shipping service. You send inventory to Amazon’s fulfillment centers, and Amazon handles storage, packing, shipping, customer service, and returns. Products get the Prime badge, which is the single biggest conversion lever on the platform.

Walmart Fulfillment Services (WFS), launched in 2020, works the same way but for Walmart.com. Walmart stores your inventory, ships it under its “TwoDay” delivery tag, and handles returns — increasingly through its 4,700+ physical stores, which gives customers a return option Amazon can’t match.

Where the Real Difference Shows Up: Fees and Competition

This is the part most comparison articles gloss over, because it’s the part that actually decides your profit.

Fees. WFS referral fees typically run 12–15% depending on category, versus 15–18% on Amazon. Storage is cheaper too, and WFS doesn’t apply a fulfillment fee referral markup the way Amazon does during Q4, when Amazon’s storage costs can spike to roughly $2.40 per cubic foot. On paper that’s a few percentage points. On a $500,000/year business, it’s tens of thousands of dollars.

Competition. Amazon has an enormous number of active sellers competing for the same buy box, which pushes up PPC costs — average cost-per-click has climbed sharply in competitive categories like supplements and home goods. Walmart Marketplace, by contrast, has a fraction of that seller count, so organic visibility is genuinely achievable without a heavy ad budget.

Traffic. This is FBA’s real advantage. Amazon’s visitor volume dwarfs Walmart’s by a wide margin. More eyeballs means more raw sales potential, even after you account for higher fees and ad spend.

So the trade-off isn’t complicated: Amazon sells you traffic. Walmart sells you margin.

The Biggest Seller Challenges with WFS and FBA

“My Amazon margins keep shrinking even though sales are growing.” This is almost always PPC creep plus rising referral and storage fees stacking up quietly. The fix isn’t to panic-lower prices — it’s to model your true landed cost per unit including ad spend before you scale a SKU further, and to test the same product on WFS where ad dependency is much lower.

“I can’t get approved for WFS.” Walmart requires a U.S. business EIN, a W-9 or W-8BEN-E, and a track record — no sole proprietors on SSN. If you’re not there yet, keep building sales history on your own site or Amazon first, then apply once your paperwork is in order.

“I don’t know which platform my product fits.” Heavy, bulky, or low-margin items usually do better on WFS because of lower storage and fulfillment costs. Fast-moving, trend-driven, or impulse-buy products usually do better on FBA because of Prime’s conversion lift and Amazon’s sheer search volume.

“Running both feels like double the operational work.” It is, unless your inventory is synced. The usual failure mode is overselling on one channel while stock sits dead on the other. A basic rule: keep separate safety stock per channel and reconcile inventory weekly until you’re ready to automate it with an order management tool.

So, Walmart WFS vs Amazon FBA?

• Choose FBA first if your buyers are Prime shoppers, you’re launching a new product that needs visibility fast, or you plan to sell internationally.
• Choose WFS first if your margins are already tight, you’re selling heavy/bulky items, or you want to build sales without a big ad budget.
• Run both if you have the operational bandwidth — sellers who diversify across Amazon and Walmart reduce platform-risk and often see 5–12 percentage points higher margin on the Walmart-side of identical products.

Neither platform is “better” in the abstract. The right one is whichever matches your product’s margin structure and your appetite for competition.

FAQs-About Walmart WFS Vs Amazon FBA

Is WFS cheaper than FBA?

Generally, yes — WFS referral and storage fees run lower on average, though the exact gap depends on your product category and size.

Can I use WFS and FBA for the same product?

Yes. Each service only fulfills orders from its own marketplace, so you’d hold separate inventory pools for Walmart.com and Amazon.

Is Walmart Marketplace less competitive than Amazon?

Yes, by seller count it’s not close — Walmart has a small fraction of the active sellers Amazon does, which generally means easier organic visibility.

Do I need a business to sell on WFS?

Yes. Walmart requires a registered U.S. business with an EIN; unlike Amazon, an SSN alone isn’t accepted.

Which one should a brand-new seller start with?

Most new sellers start with FBA because approval is faster and the customer base is larger, then add WFS once they have sales history and are ready to protect margin.