Overview

Starting January 15 2026, Amazon will raise the per‑unit fulfillment charge for Buy with Prime by an average of $0.24. The increase applies to brands that sell directly on their own websites using the Buy with Prime service. At the same time, the minimum service fee per order drops from $1.00 to $0.30, a change that could offset the higher per‑unit cost for merchants with low‑value orders.

Key Points

• Average per‑unit fee rise of $0.24 — a single‑unit shipment that previously cost $5.60 may now cost $5.84, affecting high‑volume sellers.
• Minimum service fee cut to $0.30 — orders that previously triggered the $1.00 floor will now pay only $0.30, benefiting merchants with average order values under $30.
• Multi‑unit orders (3 + units) exempt from the increase — a three‑item cart will continue to be charged at the existing multi‑unit rate, preserving the current discount structure.
• Prime service fee stays at 3 % — the percentage applied after the minimum threshold is unchanged, keeping the overall Prime cost structure stable.
• Payment processing fee unchanged at 2.4 % + $0.30 — sellers will continue to pay the same transaction fee on the order value.

How Buy With Prime Fulfillment Fees Work

1. Determine product size tier — Amazon classifies each SKU by weight and dimensions (e.g., small standard ≤ 16 oz, large standard ≤ 20 lb, oversized ≤ 50 lb).
   Example: A 12‑ounce ceramic mug falls into the “small standard” tier.

2. Apply per‑unit fee based on order quantity — Single‑unit orders use the higher fee range; orders of four or more units receive a reduced per‑unit rate.
   Example: The mug costs $5.60 per unit for a one‑item order but drops to $2.31 per unit when a customer buys four mugs in the same cart.

3. Add the minimum service fee — After the per‑unit charge, Amazon adds the minimum service fee, now $0.30 per order, unless the order value exceeds the threshold that triggers the 3 % Prime service fee. : A $20 order of a single mug incurs $5.84 (per‑unit) + $0.30 = $6.14 total fulfillment cost before the Prime percentage is applied.