Quick answer
A $39.99 Home and Kitchen product sold through FBA nets $16.98 after a 15% referral fee of $6.00, a $4.76 fulfilment fee including the 3.5% surcharge, $0.45 of storage and $0.80 of inbound shipping, on an $11 product cost. That is a 42.5% margin, or $8,490 across 500 units.
How the Amazon FBA Fee Calculator works, step by step
Enter your selling price, landed product cost, category and size tier, plus storage and inbound shipping per unit. Amazon charges two fees on every sale: a referral fee, which is a percentage of the price, and a fulfilment fee, which is a flat amount set by the size tier, the shipping weight and the price band the item sells in.
The referral fee is 15% in most categories, with a $0.30 minimum per item. Electronics pays 8% and clothing and accessories pays 17%, so the category picker matters: the same $39.99 product pays $6.00 in Home and Kitchen but $3.20 in Electronics. The fee is charged on the total the buyer pays, including delivery charges. Gift wrap is included in the referral fee base too.
The fulfilment fee depends on size tier, weight and price band. Since January 2026 there are three price bands, under $10, $10 to $50 and over $50, and the same item costs more to fulfil at a higher price. A large standard item around 1 lb in the $10 to $50 band costs $4.60 non-peak, and Amazon adds a 3.5% fuel and logistics surcharge on top, bringing it to $4.76.
Peak-season rates apply from October 15 to January 14, when fulfilment fees rise across the tiers. A large standard item that costs $4.60 non-peak costs more through the holidays, so the same product is less profitable in the fourth quarter. The calculator uses non-peak figures, so treat the result as the better half of the year and check Seller Central for peak rates.
Storage and inbound shipping are the costs sellers forget. Storage is charged monthly per cubic foot, so slow-moving stock costs more every month it sits, and aged inventory surcharges add more after a year. Inbound shipping is what you pay to get stock into Amazon's warehouses. Both are per-unit inputs here, so spread the real monthly figures across the units you expect to sell.
The formula
Referral fee = selling price times the category percentage, with a $0.30 minimum. Fulfilment fee = the size-tier rate for the price band, plus the 3.5% surcharge. Total fees = referral fee plus fulfilment fee plus storage plus inbound shipping. Profit = selling price minus product cost minus total fees.
Worked example — try it on the calculator above
Worked example: $39.99 Home and Kitchen item, large standard
A Home and Kitchen product sells for $39.99 with a landed cost of $11. The referral fee at 15% is $6.00. The fulfilment fee for a large standard item around 1 lb in the $10 to $50 band is $4.60, plus the 3.5% surcharge, giving $4.76. Storage is $0.45 and inbound shipping is $0.80, so total fees are $12.01. Profit is $39.99 minus $11 minus $12.01, or $16.98, a 42.5% margin. Across 500 units that is $8,490 of profit. In the October to January peak season the fulfilment fee is higher, so the same sale would net less. Shrinking the package into the small standard tier would cut the fulfilment fee to about $3.54 including the surcharge, adding about $1.22 of profit to every unit.
Frequently Asked Questions
What is the Amazon referral fee in 2026?
15% of the total sales price in most categories, with a $0.30 minimum per item. Electronics pays 8% and clothing and accessories pays 17%. The fee is charged on the total the buyer pays, including delivery charges, and it applies whether you fulfil the order yourself or use FBA.
What is the FBA fulfilment fee?
A flat per-unit fee for picking, packing and shipping, set by size tier, shipping weight and price band. Since January 2026 there are three price bands, under $10, $10 to $50 and over $50. A 3.5% fuel and logistics surcharge has applied since April 2026, and peak rates run from October 15 to January 14.
How does Amazon decide my size tier?
From your packaged product's dimensions and weight, using the greater of actual weight or dimensional weight. Small standard covers items under 16 oz, large standard goes up to 20 lb. Shrinking packaging can drop you into a cheaper tier, which is often the fastest way to improve FBA margin.
Do I need a Professional selling plan for FBA?
FBA works with either plan, but the Professional plan costs $39.99 a month and the Individual plan charges $0.99 per item sold instead. Above about 40 items a month the Professional plan is cheaper. The calculator does not include either plan fee, so subtract it from the monthly profit yourself.
Estimates, not advice. This calculator provides educational estimates based on the inputs you enter and the assumptions shown on this page. It is not financial, tax or investment advice, and it cannot see your full situation. Verify important figures against official sources, and consider a qualified professional for decisions about your own money. See our Disclaimer and Methodology.