Walmart's storage costs about the same as Amazon's in March and a third of it in November

Key takeaways

• No monthly subscription. By every account, Walmart charges no equivalent of Amazon's $39.99 Professional plan, and that referral fees include payment processing.
• Off-peak storage is at $0.75 per cubic foot against Amazon's $0.78 — three cents apart. The gap opens in Q4, where Amazon is at $2.40 and Walmart at $0.75 under 30 days and $1.50 beyond.
• Walmart has no equivalent of Amazon's four-band aged-inventory ladder or utilization surcharge: WFS storage has one peak rate for October–December and one long-term charge past 365 days. Flatter, and more predictable — not free.
• WFS fulfillment will start around $3.45 per unit. Estimates of how it compares to FBA range from 'competitive' to 10% to 15% cheaper.
• The trade is traffic. Walmart at roughly 145 million monthly visitors and around 150,000 active sellers against Amazon's much larger figures — less competition, and less demand.

In November, Amazon charges $2.40 a cubic foot and Walmart charges $1.50 — and Walmart’s meter does not climb by age the way Amazon’s does. For an existing FBA seller this is the lowest-friction second marketplace: same country, same logistics, a fulfillment program that works the same way. The question is whether the economics justify the work, and the honest answer depends more on your inventory turn than on your category.

01The fee structure

	Walmart	Amazon
Monthly subscription	None	$39.99 Professional
Referral fee	6%–15% most categories, capped at 20% (Jewelry)	8%–15% typical, up to 45% in some categories
Payment processing	Included in the referral fee	Separate
Referral fee calculated on	Retail price	Reported as price plus shipping and gift wrap
Fulfillment (WFS / FBA)	From ~$3.45 per unit	From ~$3.22 per unit
Storage, Jan–Sep	$0.75 / cu ft	$0.78 / cu ft
Storage, Q4	$0.75 under 30 days, $1.50 beyond	~$2.40
Aged inventory surcharge	Reported as not applied in the same way	180-day trigger, escalating

A fee-comparison site puts the combined effect of no subscription and included processing at an effective rate 2 to 5 percentage points lower than Amazon’s. Average referral rates: 12.43% Walmart against 13.04% Amazon.

02Where the difference actually is

Off-peak, almost nowhere. Three cents per cubic foot. If your inventory turns quickly and you carry little, the storage argument is noise.

In Q4 and on slow inventory, everywhere. One worked example: 500 cubic feet of Q4 inventory costs a reported $1,200 at Amazon’s peak rate against $375 to $750 at Walmart’s — $450 to $825 retained, widening the longer stock sits.

And the surcharge stack does not follow you. Our storage guide sets out Amazon’s four separate charges and the aged-inventory trigger at day 181. Walmart runs no equivalent ladder: WFS storage has a single peak rate from October to December and a single long-term storage charge for inventory over 365 days, per the WFS fee schedule — a flatter structure, not a free one.

So the honest rule: the platform difference matters most on the SKUs you are worst at forecasting. Fast movers are roughly cost-neutral; slow movers are where the money is.

03The tiered referral trap

One detail worth its own attention, because it mirrors Amazon’s price bands.

Walmart uses tiered referral rates in some categories. One worked example: a $9 beauty product costs $0.72 in referral fees; a $15 beauty product costs $2.25 — more than triple the fee on 67% more revenue.

If a product sits near a tier boundary, the pricing arithmetic changes fast. Same structural problem as Amazon’s price bands, different boundaries.

And a category-assignment warning: Walmart uses contract categories from the Marketplace Retailer Agreement rather than the categories shown during item setup, so mismatches happen. If you believe you are being charged the wrong rate, open a case with the item ID and the category you think applies.

04What WFS gets you

Beyond fulfillment: WFS items receiving priority placement in the Walmart Buy Box and eligibility for Walmart+ two-day shipping tags — the platform’s equivalent of the Prime badge, with the same conversion effect.

One source’s assessment: for a seller already running FBA, adding WFS is operationally similar, and the incremental revenue from the badge typically exceeds the fulfillment cost.

And a 2026 incentive worth checking. a New-Seller Savings program offering up to $75,000 in total value for marketplace sellers going live after February 1, 2026, including WFS fulfillment and storage discounts, with one source mentioning free storage for the first 90 days. Verify the current terms — incentive programs change and the figures are vendor-reported.

05The two things that are harder

Price parity. Walmart enforces a price parity policy: your Walmart price cannot be higher than on other channels, including your own website. That interacts with Amazon’s own external price checking — covered in the pricing guide — and it means your pricing decisions stop being per-channel.

Approval. a competitive approval process and requirements for competitive shipping speeds, typically two-day delivery on competitive listings.

06Traffic, which is the real trade

This is where Walmart loses and it is not close.

Walmart at roughly 145 million monthly visitors and around 150,000 active sellers, against Amazon’s much larger visitor volume and a figure of 9.7 million sellers cited by one source.

Read that as two effects pointing opposite ways:

Less competition. With a fraction of the seller count, organic visibility as genuinely achievable without a heavy ad budget — against Amazon CPCs at $1.00 to $1.25 and rising.

Less demand. Amazon’s visitor volume means more raw sales potential even after higher fees and ad spend.

Which is the whole decision. Walmart is cheaper per sale and there are fewer sales available. Whether that trade works depends on whether you can capture visibility cheaply enough to make the lower fee base matter.

07What to do

Model the SKUs you turn slowest. That is where the storage and surcharge difference lives. Fast movers will look nearly identical.

Check your categories against the contract category list, not the setup categories, and watch for tiered boundaries.

Check the current new-seller incentive terms rather than the published figures.

Resolve price parity before listing. Your Walmart price interacts with your Amazon price and your own site — decide the policy first.

Use WFS if you are testing seriously. The badge affects Buy Box and conversion, and without it a Walmart listing is competing without the platform’s main advantage.

Do not move the catalog. Reporting’s own advice is that there is no rule requiring one fulfillment method for a whole catalog. Test the SKUs where the storage difference is largest.

Run it on your own figures. The margin and break-even calculator takes your price, cost of goods, referral rate, fulfillment fee, returns and ad spend and returns net profit per unit, net margin and the maximum ACOS the product can carry. Nothing is stored and nothing leaves your browser.

Pull your Q4 storage bill from Amazon and multiply the cubic feet by $1.50. The difference between that number and what you paid is the size of the Walmart argument for your catalog — before a single unit sells there.

Frequently asked

Is Walmart cheaper than Amazon?

On fee structure, generally yes: no monthly subscription, payment processing included in the referral fee, and lower storage. A fee-comparison site puts the effective difference at 2 to 5 percentage points. The trade is substantially lower traffic.

How much is WFS?

Reported to start around $3.45 per unit, weight-based, with storage at roughly $0.75 per cubic foot from January to September. Estimates of the comparison to FBA range from competitive to 10% to 15% cheaper.

What happens to storage in Q4?

Amazon is at roughly $2.40 per cubic foot; Walmart at $0.75 under 30 days and $1.50 beyond. Walmart does not apply the same aged-inventory surcharge stack.

What is the price parity policy?

Walmart requires that your price there is not higher than on other channels, including your own website. It interacts with Amazon's external price checking, so pricing decisions stop being per-channel.

Is there less competition on Walmart?

active sellers at around 150,000 against a figure of 9.7 million cited for Amazon, with roughly 145 million monthly Walmart visitors. Less competition and less demand — that is the trade.

Should I use WFS or fulfil myself?

WFS items will receive Buy Box priority and Walmart+ two-day tags, which affects conversion. Heavy or slow-moving items can still be cheaper to fulfil yourself — evaluate per product rather than per catalog.

Sources

1. Walmart Fulfillment Services fee schedule (fulfillment fees by weight; storage $0.75 per cubic foot January–September and $1.50 October–December; long-term storage for inventory over 365 days; no monthly subscription; referral fees by category with payment processing included), Walmart Marketplace Seller Help accessed 2026-09-05
2. Walmart seller fees 2026 (referral, WFS and storage costs; tiered category example of $0.72 against $2.25; contract categories differing from setup categories; 500 cubic feet Q4 comparison; Q4 rates of $0.75 under 30 days and $1.50 beyond), Feedvisor Secondary accessed 2026-09-05
3. Marketplace fees compared: Amazon vs eBay vs Walmart (payment processing included in the referral fee; effective rate 2–5 percentage points lower; no aggressive aged inventory surcharges and no separate peak storage increase; WFS Buy Box priority and Walmart+ two-day tags), Nventory Secondary accessed 2026-09-05
4. Walmart seller fees 2026: $0/month plus 6–15% per sale (referral ranges and the 20% Jewelry cap; WFS from $3.45 and FBA from around $3.22; storage $0.75 against a mistaken $0.87 for Amazon — the correct 2026 figure is $0.78; 2026 New-Seller Savings up to $75,000 for sellers live after February 1, 2026), Aura Secondary accessed 2026-09-05
5. Walmart WFS vs Amazon FBA in 2026 (referral ranges 6–15% averaging 12.43% against 8–20% averaging 13.04%; Walmart charging on retail price against Amazon on combined price, shipping and gift wrap; Amazon ending in-house prep and commingling), Nice Commerce Secondary accessed 2026-09-05
6. Walmart fee calculator 2026 (price parity policy including your own website; competitive approval process; two-day delivery expectations; WFS fees often 10–15% lower than comparable FBA), Futureproof Secondary accessed 2026-09-05
7. Amazon FBA vs Walmart WFS: which is more profitable in 2026 (roughly 145 million monthly visitors; approximately 150,000 active Walmart sellers against a cited 9.7 million on Amazon; first 90 days of free storage for new sellers), Upsell Wholesale Secondary accessed 2026-09-05
8. FBA vs WFS: Amazon and Walmart fulfillment compared (2026) (referral fees set by marketplace rather than fulfillment method; WFS as a simpler and more predictable stack; no rule requiring one fulfillment method for a whole catalog), WallScout Secondary accessed 2026-09-05
9. Walmart WFS vs Amazon FBA: which wins in 2026 (lower seller density enabling organic visibility without heavy ad spend; Amazon visitor volume as FBA’s real advantage), Ativa IT Solutions Secondary accessed 2026-09-05