Amazon FBA Storage Limits and IPI Score: Complete Guide

Amazon's FBA storage limits are directly tied to your IPI score. Sellers with IPI scores above the threshold receive their storage limits based on a combination of their historical sales volume, product mix (different limits for standard-size, oversized, apparel, footwear, etc.), and seasonal capacity availability. Sellers below the threshold receive reduced limits that can severely constrain FBA operations. Storage limits are set quarterly. Amazon notifies sellers of upcoming limits approximately 3-4 weeks before each quarter begins. The notification comes via email and is visible in the Inventory Performance dashboard. Key storage limit categories: standard-size items, oversize items, apparel (has its own sub-limit), and footwear (has its own sub-limit). These categories have separate limits, so being over on one does not affect others. To maximize your storage allocation: keep your IPI above the threshold consistently (aim for 500+), focus on maximizing sell-through rate for your highest-cubic-foot products (oversize items that turn slowly use disproportionate allocation), and if you are near the limit, prioritize sending the highest-velocity products to FBA and self-fulfilling slower movers through FBM.