Amazon IPI Thresholds in 2026: What Sellers Should Watch

In 2026, Amazon has updated its Inventory Performance Index (IPI) thresholds, affecting FBA storage limits and fees. This article explains why IPI matters, the new tiered thresholds, how to evaluate your score, common pitfalls, and actionable steps to maintain a healthy IPI and avoid costly restrictions.

Why the 2026 IPI Threshold Matters for Sellers and Buyers

Amazon's Inventory Performance Index (IPI) is a score that measures how well you manage your FBA inventory. A low score can lead to storage limits, restricting how much stock you can send to fulfillment centers. In 2026, Amazon has updated the IPI thresholds, making it crucial for sellers to stay informed. For buyers, this means product availability may fluctuate, affecting delivery times and options.

For cross-border sellers, especially those using FBA, the IPI directly impacts operational efficiency. A score below the threshold can result in overage fees and reduced storage, leading to stockouts or excess inventory. Understanding the new thresholds is essential for maintaining a healthy supply chain and avoiding unnecessary costs.

• IPI affects storage limits for FBA sellers.
• Threshold changes can impact inventory planning.
• Buyers may see changes in product availability and delivery speeds.

Key Categories of IPI Thresholds and Their Changes in 2026

The IPI is calculated based on four main factors: excess inventory percentage, sell-through rate, in-stock rate, and stranded inventory percentage. Each factor contributes to your overall score. In 2026, Amazon has adjusted the weight of these factors, emphasizing sell-through rate and reducing the impact of in-stock rate.

Historically, the threshold for avoiding storage limits was 400. In 2026, Amazon has introduced a tiered system. Sellers with scores above 450 receive unlimited storage for standard-size items, while those between 400 and 449 have limited storage. Scores below 400 may face severe restrictions and additional fees. These changes are designed to encourage faster turnover and reduce warehouse congestion.

• Excess inventory percentage: now has a higher weight.
• Sell-through rate: becomes the primary metric.
• In-stock rate: weight reduced, but still important.
• Stranded inventory: must be resolved promptly.

How to Evaluate Your IPI: Criteria and Trade-offs

To assess your IPI, monitor your score in Seller Central under the Inventory Performance dashboard. The score ranges from 0 to 1000, with 400 as the historical baseline. In 2026, the tiered thresholds mean you need to aim for at least 450 to avoid most restrictions. However, a higher score does not guarantee better performance if your inventory is not aligned with demand.

When evaluating your IPI, consider trade-offs. For example, maintaining a high in-stock rate may require holding more inventory, which can increase excess inventory percentage. Conversely, reducing inventory to improve excess percentage might lead to stockouts. Balancing these factors is key. Use Amazon's recommendations for removing or replenishing inventory, but also analyze your sales velocity and seasonality.

• Check your IPI score weekly and track trends.
• Compare your score to the new thresholds (400, 450).
• Analyze each contributing factor to identify weak areas.
• Weigh the cost of storage fees against potential lost sales.

Common Pitfalls When Dealing with IPI Thresholds

One common mistake is ignoring stranded inventory. Items that are not listed correctly or have listing errors can severely damage your IPI. Regularly audit your inventory for stranded items and resolve them quickly.

Another pitfall is overreacting to threshold changes. Some sellers may drastically reduce inventory to boost their score, but this can lead to stockouts and lost sales. Instead, focus on improving sell-through rate by optimizing listings, pricing, and advertising. Also, avoid holding excessive inventory during slow seasons; use removal orders or liquidation to clear excess stock.

• Neglecting stranded inventory resolution.
• Over-reducing inventory and causing stockouts.
• Ignoring seasonal demand patterns.
• Failing to monitor IPI regularly.

Practical Recommendations and Next Steps

To stay ahead in 2026, start by reviewing your current IPI and identifying areas for improvement. Implement a robust inventory management system that tracks sales velocity and forecasts demand. Use Amazon's tools like the Inventory Planning dashboard to get recommendations.

Set a goal to maintain an IPI above 450. If your score is low, take corrective actions: remove excess inventory, fix stranded listings, and improve sell-through with promotions or better product content. Also, consider using FBA's new options like 'Amazon Vine' to boost product visibility. Regularly review your performance and adjust strategies as needed.

• Audit your inventory and resolve stranded items.
• Use forecasting tools to align stock with demand.
• Optimize listings to improve sell-through.
• Monitor IPI weekly and adjust strategies.

Key Takeaways

Summary: Amazon's 2026 IPI thresholds introduce a tiered system that demands higher scores for unlimited storage. Sellers must focus on improving sell-through rate, managing excess inventory, and resolving stranded items. Next steps: check your IPI now, set a goal above 450, and implement inventory optimization strategies.

This article is compiled by kuajing168.cn for reference only. Please refer to the official announcements of each platform for the latest policies and rates.