FBA Storage Fee Estimator
Estimate your Amazon FBA storage costs including monthly fees, peak season rates, and long-term storage penalties. Plan your inventory strategy and avoid surprise fees.
Oct-Dec storage has higher rates
Fee Breakdown
Monthly Storage Fees: Charged based on the daily average volume (cubic feet) your inventory occupies in Amazon fulfillment centers. Rates vary by product size tier and season.
Peak Season (Q4): From October through December, storage fees increase significantly (typically 2-3x) to manage warehouse capacity during the holiday rush.
Long-Term Storage: Inventory aged 365+ days incurs additional fees charged on the 15th of each month. The fee is the greater of $0.15 per unit or $6.90 per cubic foot.
- Monitor inventory age reports weekly to identify at-risk items
- Set alerts at 270 days to trigger action before long-term fees
- Consider removal orders or liquidation for slow-moving inventory
- Optimize restock quantities to avoid excess inventory buildup
- Use FBA inventory placement service strategically to reduce fees
Every inch matters! Reducing package dimensions by just 1 inch in each direction can significantly reduce cubic footage and storage costs.
Create removal orders for items approaching 365 days. It's often cheaper to dispose and restock than to pay long-term storage fees.
Ship Q4 inventory early (September) to avoid peak season storage fees. Consider reducing stock levels in October to minimize costs.
Track sales velocity by SKU. High-velocity items can justify higher inventory levels, while slow movers need tighter control.
Amazon sends notifications at 7, 30, 60, and 90 days before long-term fees. Set up email filters to never miss these important alerts.
Aim to keep your IPI (Inventory Performance Index) above 500 to avoid storage quantity limits and additional fees.
- Ignoring inventory age: Many sellers only check storage fees after receiving a surprising bill. Regular monitoring prevents this.
- Over-ordering for Q4: While Q4 has high sales potential, excessive inventory leads to massive storage fees if sales don't materialize.
- Not optimizing packaging: Selling the same product with different packaging can move you to a lower size tier.
- Forgetting about removal fees: Sometimes it's more cost-effective to pay removal fees than to continue storing unsellable inventory.
How are FBA storage fees calculated?
FBA storage fees are calculated based on the volume (cubic feet) your inventory occupies in Amazon fulfillment centers. The rate varies by size tier (Standard, Oversize, Extra Oversize) and season (higher rates during Q4). Fees are charged monthly on the 15th-18th based on the previous month's average inventory.
What is the long-term storage fee?
Long-term storage fees apply to items stored for more than 365 days. Amazon charges a minimum of $0.15 per unit or $6.90 per cubic foot (whichever is greater) on the 15th of each month. This is in addition to regular monthly storage fees.
Why are storage fees higher in Q4?
During Q4 (October-December), Amazon increases storage fees to encourage sellers to manage inventory efficiently during the peak holiday season. Rates typically increase 2-3x compared to non-peak months. This helps Amazon manage warehouse capacity during their busiest period.
How can I reduce my FBA storage costs?
Key strategies include: optimizing packaging to reduce volume, maintaining high inventory turnover, creating removal orders for slow-moving inventory before it hits 365 days, reducing stock levels before Q4, and using FBA inventory reports to monitor aged inventory.
What happens if my product changes size tiers?
Amazon automatically categorizes products into size tiers based on their dimensions and weight when they arrive at fulfillment centers. If your product's size tier changes (e.g., due to repackaging), the storage fee rate changes accordingly. You can request a remeasurement if you believe the tier is incorrect.
Are storage fees the same across all Amazon marketplaces?
No, storage fees vary by marketplace. US, EU, UK, and JP marketplaces each have their own fee structures and currencies. This tool allows you to estimate storage costs for each marketplace to help with multi-marketplace selling decisions.
Important Note
This calculator provides estimates based on Amazon's published FBA storage fee structure as of 2024. Actual fees may vary based on specific product categories, special programs, warehouse locations, and Amazon's fee schedule updates. Always verify current rates in Seller Central for the most accurate information. Additional costs like removal fees, disposal fees, and inventory storage overage fees are not included in this calculation.