Overview

Amazon has reinstated inventory shipment caps for FBA sellers as it heads into the holiday rush of Q4 2025. The limits are tied to each seller’s sales history, inventory health and the type of product, meaning that unrestricted shipments are no longer an option. Sellers who ignore the new caps risk running out of stock during Black Friday, Cyber Monday and the surrounding high‑margin weeks.

Key Points

• Per‑SKU caps re‑enabled — Each SKU now carries a weekly and monthly unit ceiling based on the seller’s recent performance; for example, a top‑selling kitchen gadget may be limited to 2,000 units per week while a slower‑moving accessory is capped at 500.
• Performance‑driven allowances — Sellers who posted a 20 % or higher increase in Q4 sales last year can see their limits rise by roughly 10–15 %, whereas accounts with high storage fees may see a 20 % reduction.
• Separate tracking for size classes — Standard‑size items and oversize items are evaluated independently, so a seller could ship 3,000 standard units but only 800 oversize units in the same week.
• Weekly recalculation cycle — Amazon updates each SKU’s limit every Monday; a spike in early‑November sales can unlock an extra 300 units for the following week.
• Warehouse capacity factor — When a fulfillment center reaches its overall capacity, Amazon may lower all sellers’ limits for that site, adding an unpredictable element to planning.

How Restock Limits Work

1. Access limits in Seller Central — Navigate to the FBA Inventory dashboard; the page lists weekly and monthly caps per SKU, split between standard and oversize categories. For instance, a seller of Bluetooth speakers will see “Weekly Cap = 1,200 units (Standard)” and “Monthly Cap = 4,800 units.”
2. Algorithm evaluates inventory health – Amazon reviews metrics such as sell‑through rate, aged inventory and storage‑fee history. A seller who cleared 95 % of last quarter’s stock within 30 days may receive a 12 % higher allowance than a peer with a 70 % sell‑through.
3. Performance multiplier applies – Historical Q4 growth is factored in; a seller who grew holiday sales by 25 % YoY could see a 13 % boost to each SKU’s limit, while a seller with flat growth gets no boost.