Amazon FBA Fees Explained: Complete Breakdown

Referral Fees: Amazon's Sales Commission

Amazon charges a referral fee on every sale, calculated as a percentage of the total selling price including the item price plus any shipping or gift wrap charges. The percentage varies by product category. Most categories charge 15%, which is the rate for Home and Kitchen, Sports and Outdoors, Toys, Health and Beauty, and most other popular FBA categories. Some categories have lower rates: Consumer Electronics charges 8%, Personal Computers charges 6%, and Amazon Device Accessories charges 45%. There is a minimum referral fee of $0.30 per item, which only applies to very low-priced products.

For a product selling at $24.99 in a 15% category, the referral fee is $3.75. At $34.99, it is $5.25. At $49.99, it is $7.50. This percentage is non-negotiable regardless of your sales volume or tenure as a seller. When calculating your product margins, the referral fee is typically your second-largest cost after the product itself. Factor it into your pricing before you source, not after.

FBA Fulfillment Fees: Picking, Packing, and Shipping

FBA fulfillment fees cover the cost of Amazon picking your product from the warehouse shelf, packing it for shipment, and shipping it to the customer with Prime delivery. These fees are based on the product's size tier and shipping weight. Amazon categorizes products into size tiers: small standard-size (up to 15 inches on the longest side, under 12 ounces), large standard-size (up to 18 inches on the longest side, under 20 pounds), small oversize, medium oversize, large oversize, and special oversize.

For standard-size products, which is where most successful FBA products fall, the fulfillment fee ranges from $3.22 for items under 2 ounces to $6.75 for items between 1 and 2 pounds. Each additional pound above 2 pounds adds roughly $0.40. For a typical small kitchen gadget weighing 8 ounces, you are paying about $3.86 in fulfillment. For a set of resistance bands at 1.5 pounds, the fee is approximately $5.90. Oversize products see much higher fees starting around $9.73 and climbing to $90 or more for the largest items. This is why experienced sellers focus on small, lightweight products: the fulfillment fee difference between a 6-ounce product and a 3-pound product can be $3 or more per unit, which adds up to thousands of dollars across hundreds or thousands of sales.

Monthly Storage Fees

Amazon charges monthly inventory storage fees based on the volume (cubic feet) your products occupy in their warehouses. From January through September, the rate is $0.56 per cubic foot for standard-size items. From October through December, the rate jumps to $2.40 per cubic foot as Amazon's warehouses fill with holiday inventory. For a product that fits in a 6x6x6 inch box (0.125 cubic feet), monthly storage costs about $0.07 during standard months and $0.30 during Q4. These numbers sound small per unit, but they accumulate when you hold thousands of units across multiple products.

The real storage cost danger is aged inventory. Amazon charges an aged inventory surcharge for units stored longer than 181 days, starting at $0.50 per cubic foot for items aged 181 to 270 days, $1.00 per cubic foot for 271 to 365 days, and escalating from there. Units stored over 365 days face the harshest penalties. This surcharge is in addition to the regular monthly storage fee. The lesson is clear: do not send more inventory than you can sell in 60 to 90 days. Use the inventory management tools in Seller Central to track your sell-through rate and avoid aged inventory penalties.

Additional Fees Most Sellers Encounter

Refund Administration Fee

When a customer returns a product, Amazon refunds their referral fee to you, but keeps an administration fee equal to the lesser of $5.00 or 20% of the referral fee. On a $25 product with a $3.75 referral fee, you get back $3.00 and Amazon keeps $0.75. In categories with high return rates like Clothing (20% to 30% returns) or Electronics (8% to 15% returns), this administration fee becomes a meaningful cost. Factor your expected return rate into your margin calculations from the start.

Removal and Disposal Fees

If you need to remove unsold inventory from Amazon's warehouses, you pay $0.97 per standard-size unit for a removal order (Amazon ships the products back to you) or $0.32 per unit for disposal (Amazon destroys the inventory). Removal fees seem small per unit but can be significant when clearing hundreds of slow-moving items. Some sellers set automated removal rules for inventory approaching the aged surcharge threshold, accepting the removal fee as cheaper than the ongoing storage penalties.

Labeling and Prep Fees

If your products arrive at Amazon without proper FNSKU labels or required prep (poly bagging, bubble wrapping), Amazon will do it for you at a cost. Labeling costs $0.55 per unit. Poly bagging costs $1.00 per unit. Bubble wrapping costs $1.60 per unit. These fees are avoidable by doing your own prep or having your supplier or freight forwarder handle it, which is almost always cheaper than paying Amazon.

Professional Seller Subscription

The Professional selling plan costs $39.99 per month regardless of how many products you sell. This fee is required to access advertising, bulk listing tools, Buy Box eligibility, and detailed business reports. When you are selling 200 or more units per month, this fee averages out to less than $0.20 per unit. During your first month when sales are low, it is a noticeable fixed cost, but it quickly becomes negligible as volume grows.

Real Fee Breakdown Example

Here is a complete fee breakdown for a typical private label product: a silicone kitchen utensil set selling for $24.99. The product weighs 14 ounces and ships in a box measuring 10x6x3 inches. Referral fee at 15%: $3.75. FBA fulfillment fee for a 14-ounce standard item: $4.25. Monthly storage per unit (January through September): $0.06. That totals $8.06 in Amazon fees per unit sold. If your product cost is $5.00 landed (including manufacturing and shipping to FBA), your gross margin before advertising is $11.93 per unit, or roughly 48%. After PPC advertising at $2.50 per unit and a 10% return rate costing roughly $0.80 per unit in net losses, your net profit is approximately $8.63 per unit, or 34.5%. That is a healthy Amazon product.

Compare that to a product selling at $14.99 with the same weight: referral fee $2.25, fulfillment fee $4.25, storage $0.06, totaling $6.56 in Amazon fees. With a $3.50 product cost, your gross margin is only $4.93, or 33%. After advertising and returns, there is almost nothing left. This illustrates why selling price matters enormously on Amazon. The fulfillment fee is roughly the same whether your product sells for $15 or $50, which means higher-priced products carry their fixed fees more efficiently.

How to Reduce Your FBA Fees

Keep products small and light to minimize fulfillment fees. A reduction of even 2 ounces can drop you into a lower fee tier, saving $0.30 to $1.00 per unit. Work with your supplier to reduce packaging dimensions and weight. Use Amazon's FBA revenue calculator (available free in Seller Central) to model fees before you commit to a product.

Maintain a healthy sell-through rate to avoid aged inventory surcharges. Send 4 to 8 weeks of inventory at a time rather than 6 months of stock. Monitor your IPI score and set removal orders for slow-moving inventory before it triggers surcharges. During Q4, plan your inventory carefully: the elevated storage fees from October through December mean that unsold holiday inventory becomes very expensive to hold into January.

Use Amazon's fee calculators and reports to understand your true unit economics. The "FBA Fee Preview" report in Seller Central shows the exact fees for each of your products. The "Monthly Storage Fees" report tracks your storage costs by ASIN. Review these reports monthly and use them to inform pricing, product selection, and inventory decisions. Our profit calculator guide walks through the full calculation methodology.