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Amazon’s 2026 FBA fee changes are reshaping seller margins faster than most realize. This guide breaks down the latest fulfillment, storage, and low-inventory fees, the hidden costs sellers often overlook, and practical ways to reduce unnecessary charges while protecting profitability on Amazon.
Amazon shut down its US FBA prep services on January 1, 2026 — and then the FNSKU mandate hit on March 31. Six months later, here’s which sellers absorbed the change cleanly, which ones scrambled, and what the real cost picture looks like now.
New seller registrations hit a decade low in 2025 — down 73% from the 2021 peak. Meanwhile, fewer than 8,000 sellers drive half of all US third-party GMV. The Amazon marketplace is hardening into two tiers, and the revenue concentration data tells you exactly what that means for how you need to operate.
Prime Day is over — and the next 24 hours are when most sellers make their first mistake. Run this 6-point audit to catch hijackers, Buy Box losses, suppressed listings, price floor breaches, content changes, and stockouts before they compound.
Amazon is systematically rewriting seller-controlled listing content — titles, bullets, images — through AI systems that act without seller approval. This is the thread connecting the July 27 title cap, Enhance My Listing, and Project Starfish. Here’s what Amazon can touch and what’s still yours.
Amazon’s March 31, 2026 commingling policy change split FBA inventory requirements between brand owners and resellers. Brand Registry representatives can still use manufacturer barcodes. Resellers must FNSKU every unit. Here’s what changed, why, and what to do now.
Account Health Assurance sounds like a safety net for all sellers — but it’s eligibility-gated, and automated enforcement still acts before the 72-hour window opens. Here’s what AHA actually covers, who qualifies, and what to have in place before you need it.
