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Amazon charges a $39.99 monthly Professional plan plus referral fees; Walmart charges no monthly or setup fee, only referral fees. Most categories pay 15% on both. The real difference is FBA vs WFS fulfillment and storage, plus Amazon's 3.5% fuel and logistics surcharge since April 17, 2026.
Read more: Amazon vs Walmart Seller Fees in 2026: USA and Canada Compared
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WFS return disputes open late. A refunded return that was never processed can be disputed from day 90 after the return was initiated, for 45 days. A processed return that never reached you opens on day 45. Walmart allows one case per order, three attempts to supply documents and one appeal within 30 days.
Read more: Walmart Refunded the Customer but the Return Never Came Back: WFS Return Dispute Windows
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If WFS receives fewer units than you shipped, you can open an investigation between day 10 and day 50 after delivery, once the shipping plan is Completed. Walmart asks for proof of delivery or a signed BOL, pays confirmed losses at average selling price, and accepts no appeals.
Read more: WFS Received Fewer Units Than You Shipped: How to File a Walmart Inbound Investigation
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Walmart's New-Seller Savings runs from February 2, 2026 to January 31, 2027 for first-time US sellers who go live after February 1, 2026. It's worth up to $75K: referral fee discounts up to $72K, 10% off WFS fulfillment fees up to $2K, up to $500 in ad credits and a 50% search marketing rebate up to $1K.
Read more: Walmart New-Seller Savings 2026: What You Get and Who Qualifies
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WFS storage costs $0.75 per cubic foot per month, and from October to December items stored over 30 days pay $1.50 more. Since June 30, 2026, inventory held 366–450 days is charged $2.25 per cubic foot per month, and over 450 days $7.50, counted from the date Walmart received it.
Read more: Walmart WFS Storage Fees in 2026: Long-Term Fees and the Q4 Surcharge