Overview

Amazon’s 2026 Fulfilled‑by‑Amazon (FBA) storage fee schedule continues to split rates between off‑peak months (January – September) and peak months (October – December). Off‑peak inventory costs $0.87 per cubic foot, while the holiday window jumps to $2.40 per cubic foot. An additional $0.15 per cubic foot surcharge applies to any stock that stays in a fulfillment center for more than 365 days. Sellers who misjudge these fees risk eroding margins, especially during the critical Q4 selling period.

Key Points

• Off‑peak base rate — $0.87 per cubic foot for inventory under 250 cu ft, unchanged from 2025.
• Off‑peak volume discount — Storage drops to $0.55 per cubic foot once a seller’s total exceeds 250 cu ft, a roughly 37 % reduction.
• Peak‑season premium — From October through December the rate rises to $2.40 per cubic foot, a 176 % increase over the off‑peak price.
• Long‑term surcharge — Stock older than 365 days incurs an extra $0.15 per cubic foot each month, on top of the regular seasonal rate.
• Daily accrual, no grace period — Fees start the day inventory is checked in; there is no free‑of‑charge window.
• Volume‑based calculation — Amazon multiplies total cubic footage by the applicable seasonal rate to generate the monthly bill.

How Amazon Calculates Storage Fees

1. Determine unit volume — Multiply a product’s length, width, and height in inches, then divide the result by 1,728 to convert to cubic feet.
   Example: A 12 × 8 × 6‑inch item yields (12 × 8 × 6) ÷ 1,728 = 0.33 cu ft.
2. Aggregate total cubic footage — Sum the cubic‑foot values for every SKU stored at a fulfillment center on a given day.
   Example: Ten units of the 0.33 cu ft item equal 3.3 cu ft of total volume.
3. Apply the seasonal rate — Multiply the aggregated volume by the off‑peak or peak‑season rate, depending on the calendar month.
   Example: 3.3 cu ft in September costs 3.3 × $0.87 = $2.87; the same volume in November costs 3.3 × $2.40 = $7.92.