If you’re selling on Amazon and looking at Walmart Marketplace as a second channel, you’re asking a reasonable question. Walmart has a real audience, lower competition than Amazon in many categories, and genuine appeal as a secondary marketplace.
Here’s the honest part: for most sellers who already have a working Amazon operation, Amazon stays the core. Walmart is a useful experiment, not a replacement. This article walks through what Walmart actually is, when it makes sense as a secondary channel, and how to think about pricing if you decide to sell on both.
What Walmart Marketplace Is (And Isn’t)
Walmart Marketplace is Walmart’s third-party seller platform. It accepts sellers by invitation, charges referral fees rather than monthly subscriptions, and has its own algorithmic search and Buy Box equivalent. Anyone can apply, including non-US sellers, though the application bar is meaningfully higher than Amazon’s.
What it isn’t, at least not yet, is Amazon. Walmart’s marketplace is smaller, less mature, and serves a different audience. Treating it like Amazon (or expecting Amazon-scale results from it) is the most common mistake sellers make when they expand.
The Honest Case for Walmart Marketplace
Walmart genuinely offers some things Amazon doesn’t. Three points worth knowing:
Less competition than Amazon (in many categories)
Walmart’s marketplace is smaller and curated, with fewer competing offers per listing in most categories. For sellers who can win a niche, that’s a real advantage. The trade-off is that the total addressable audience is smaller too, so a 70% share of a smaller pool may or may not beat a 30% share of Amazon.
Referral-fee model with no monthly subscription
Walmart charges per-sale referral fees by category (typically 6-15%, varying by product type) and does not charge a monthly seller account fee. The trade-off is that all your selling cost lives in the variable line, so per-unit margin discipline matters as much as on Amazon, sometimes more.
Walmart Fulfilment Services is a real option
WFS handles storage, packing, and shipping similar to FBA. For Amazon sellers used to FBA economics, the model is familiar enough to evaluate quickly. Fees and turnaround vary by category and product profile, so check the WFS calculator before committing inventory.
None of this changes the basic point. The case for Walmart is “useful secondary channel”, not “Amazon replacement”.
Why Amazon Usually Stays Your Core Channel
For most established sellers, Amazon should remain the centre of the strategy. Three concrete reasons:
Volume
Amazon captures roughly 40% of US eCommerce sales, and third-party sellers account for 60% of paid units on Amazon. Walmart Marketplace, even in 2026, is a small fraction of that. If you have an Amazon catalogue that’s earning, that catalogue is doing more work than any other channel you could realistically add.
Buy Box dynamics that reward optimisation
Amazon’s Featured Offer rotation is competitive but predictable. Sellers who build the right pricing and account-health discipline can earn meaningful Buy Box share over time. Walmart’s equivalent exists but has less liquidity and rewards effort less reliably, partly because the marketplace is smaller and partly because the algorithm is younger. For a deeper read on how Amazon’s allocation works, see our Buy Box coverage.
Seller tooling maturity
Amazon’s ecosystem of repricers, advertising platforms, analytics tools, and inventory systems is the most developed in eCommerce. Walmart’s is improving but a step behind. Sellers running both channels typically find their Amazon operation needs less hands-on attention to keep running than the Walmart one does.
When Does Walmart Make Sense as a Secondary Channel?
Walmart usually makes sense once your Amazon operation is healthy, profitable, and running with minimal hands-on attention. Sellers who try to onboard to Walmart while their Amazon Buy Box percentage is sliding tend to end up with two struggling channels instead of one strong one.
The honest sequencing:
- Stabilise Amazon first. Win the Buy Box at defensible prices, automate repricing, protect real margin floors. Our repricing basics and repricing strategies guides cover the patterns that hold up at scale.
- Document what’s working on Amazon. Your best-selling SKUs, your repeat customers, your margin patterns. That data is what tells you which products to test on Walmart, and which to leave on Amazon only.
- Start small on Walmart. Test with a subset of your catalogue, not your whole inventory. Treat it as an experiment that has to earn its place, not a strategic pivot. Give it three to six months before drawing conclusions.
Most of all, don’t confuse motion with progress. Adding a second sales channel feels productive but rarely is, if Amazon performance suffers in the meantime.
If You Do Sell on Both, Treat Your Amazon Price as the Floor
Amazon’s Marketplace Fair Pricing Policy can suspend Featured Offer eligibility for products listed lower on other sales channels. Undercutting Amazon on Walmart (to chase Walmart Buy Box share) is a dangerous play that can take out your Amazon listing entirely.
The standard pattern: set your Amazon prices first, then derive your Walmart prices from there. Most sellers run Walmart 1-5% above Amazon to reflect different shopper expectations, Walmart’s higher referral fees on some categories, and the operational overhead of running two channels. Whatever you choose, your Amazon price is the floor.
This also means your Amazon repricing discipline is what determines your floor on every other channel. Sloppy Amazon pricing becomes sloppy Walmart pricing automatically. Our piece on protecting profit margins covers the maths behind margin floors based on real net (FBA fees, referral fees, returns, shipping) rather than flat percentage buffers.
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