Amazon Tightens FBA Storage Limits and Adds New Inventory Surcharges for Mid-2025
Amazon will tighten FBA storage rules on June 1, 2025, cutting allocation windows to five months, reinstating ASIN‑level inbound caps, and moving the long‑term storage fee trigger to 271 days. New surcharges of $0.15 per unit per day apply after 26 weeks of supply and a $0.10 per unit per day penalty hits SKUs under 28 days.
Overview
Amazon will tighten its Fulfilled‑by‑Amazon (FBA) storage rules in mid‑2025, cutting the amount of inventory sellers may keep in Amazon warehouses and adding new fees that punish both excess and insufficient stock. The changes take effect on June 1, 2025, and will force sellers to revamp purchasing, forecasting, and supply‑chain processes to stay profitable.
Key Points
- Capacity cut to five months — Average storage allocations shrink from roughly six months of projected sales to five months, with some accounts seeing reductions of up to 75 %.
- ASIN‑level inbound caps reinstated — Sellers must now respect per‑SKU inbound limits instead of relying on a single aggregate ceiling.
- New surcharge at 26 weeks — Inventory that exceeds 26 weeks of supply triggers a daily surcharge designed to push sellers toward faster turnover.
- Long‑term storage fee starts at 271 days — The fee that previously began after 365 days now kicks in after 271 days, shaving almost three months off the grace period.
- Low‑stock penalty for under 28 days — SKUs with less than 28 days of inventory on hand will incur a penalty fee, discouraging stockouts.
- Prep‑service rates increased — Amazon’s bagging, labeling and other preparation services see higher pricing under the revised rate schedule.
What's Changing
- Reduced allocation window — Amazon calculates each seller’s storage entitlement based on five months of forecasted sales. For example, a seller who previously could store 12,000 units (six‑month forecast) will now be limited to 10,000 units.
- Re‑introduction of ASIN‑level limits — Each SKU receives its own inbound ceiling. A seller with 200 units of a fast‑moving toy may be allowed 150 inbound units, while a slower‑moving kitchen gadget might be capped at 30 units.
- Excess‑inventory surcharge activation — Once a SKU reaches 26 weeks of supply, Amazon adds a surcharge of $0.15 per unit per day. If a seller holds 500 units of a seasonal item for 182 days, the surcharge could exceed $13,000 before the item sells.
Analysis & Recommendations
Why This Matters
The reduced five‑month allocation and earlier 271‑day long‑term fee shrink usable space, while $0.15/day excess‑inventory and $0.10/day low‑stock penalties can erode margins quickly. Sellers must re‑forecast, shift surplus to AWD or 3PLs, and monitor IPI to avoid capacity cuts and unexpected charges.
Key Takeaways
- Allocation window drops from six to five months, with some sellers seeing up to a 75% reduction in storage entitlement.
- Long‑term storage fee now starts after 271 days (previously 365) at $0.75 per cubic foot per month.
- Excess‑inventory surcharge of $0.15 per unit per day activates once a SKU reaches 26 weeks of supply.
- Low‑stock penalty of $0.10 per unit per day applies to SKUs with less than 28 days of inventory on hand.
Recommended Actions
- →In Seller Central, go to Inventory > Manage Inventory, flag SKUs with >26 weeks supply and either reduce inbound shipments or move excess units to ...
- →On June 1, 2025, open Settings > Storage Limits, review your new allocation and submit a Capacity Manager request if your IPI is above 400.
- →Navigate to Settings > Fulfillment > Prep Services, compare the new bagging ($0.18) and labeling ($0.13) rates, and update your cost calculations a...
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