How to use this Amazon FBA calculator
This calculator stacks every 2026 FBA fee against your sale price: the referral cut, the fulfillment fee with the 3.5% fuel surcharge applied automatically, and storage. Enter price, landed cost, and your size tier fee. You get net profit, margin, ROI, and a break-even price.
- Find your exact fulfillment fee in the table below or in Seller Central's revenue calculator.
- Referral defaults to 15%, the rate most categories pay. Exceptions sit in the second table.
- Add ad spend per unit to see profit after PPC, the number that decides scaling.
The 2026 fee stack, item by item
Amazon charges three fees on almost every FBA sale: a referral fee of 15% for most categories (minimum $0.30), a fulfillment fee set by size and weight, and monthly storage of $0.78 per cubic foot from January through September. A 3.5% fuel surcharge rides on fulfillment fees since April 17, 2026.
Storage triples in Q4: $2.40 per cubic foot from October through December for standard-size items. Slow stock draws worse. Units older than 180 days pull aged-inventory surcharges from $0.50 per cubic foot, climbing to $7.90 past 456 days.
2026 FBA fulfillment fee examples
Since January 15, 2026, fulfillment fees come in three price bands: under $10, $10 to $50, and over $50. Cheaper listings pay lower rates through Low-Price FBA, on average $0.86 less per unit. The examples below cover the most common private-label sizes.
Size tier | Under $10 | $10-$50 | Over $50 |
|---|---|---|---|
Small standard, 2 oz | $2.43 | $3.32 | $3.58 |
Small standard, 4 oz | $2.49 | $3.42 | $3.68 |
Large standard, 1 lb | $3.78 | $4.60 | $4.86 |
Large standard, 2 lb | $5.00 | $5.82 | $6.08 |
Amazon's published rates for January 15 to October 14, 2026, before the 3.5% fuel surcharge. Apparel and dangerous goods use separate rate cards, and peak-season rates apply October 15 to January 14.
Referral fees by category
Referral fees are the commission Amazon takes on the total sales price, and 15% is the standard rate with a $0.30 minimum. A handful of categories run cheaper or tiered, which changes the whole profit equation for electronics, apparel, and low-priced beauty and grocery products.
Category | Referral rate |
|---|---|
Most categories | 15% (min $0.30) |
Consumer Electronics | 8% |
Clothing & Accessories | 5% to $15, 10% to $20, 17% above |
Beauty, Health & Personal Care | 8% up to $10, then 15% |
Grocery & Gourmet | 8% up to $15, then 15% |
Pet Supplies | 15% (22% for vet diets) |
Worked example: a $29.99 product, all fees in
Say you sell a one-pound product at $29.99 with an $8 landed cost. The referral fee takes $4.50, fulfillment costs $4.76 with the fuel surcharge, and storage averages $0.40 a unit. Amazon keeps $9.66 of the sale, 32.2%, and you keep $12.33: a 41.1% margin.
- ROI: $12.33 profit on $8 invested per unit is 154%, before ads.
- Break-even price: $15.48. Below that, every sale loses money at these costs.
- At 480 units a month, the SKU clears about $5,919 before advertising.
The fees sellers forget to price in
Four fees sit outside the standard stack and ambush margins: the low-inventory-level fee of $0.32 to $2.09 per unit when days of supply drop under 28, inbound placement charges of up to $1.90 per standard unit, aged-inventory surcharges from day 181, and peak fulfillment rates from October 15 to January 14.
- Low-inventory fee: keep more than 28 days of supply and it never applies. The safety stock calculator sizes that buffer.
- Inbound placement: splitting shipments to five or more locations zeroes the fee.
- Peak season: a one-pound unit jumps to $4.89 in the $10-$50 band, before the surcharge.
- Aged stock: $0.50 per cubic foot at day 181, and $7.90 or $0.35 a unit past day 456.
This calculator vs Amazon's revenue calculator
Amazon's own revenue calculator previews fees for a specific ASIN, and it is the right tool for exact per-product quotes. This one answers the sourcing question instead: margin, ROI, break-even, and monthly profit across any price and cost combination, with the fuel surcharge already applied. Use both.
Frequently Asked Questions
What fees does Amazon FBA charge in 2026?
Three core fees: referral (15% for most categories), fulfillment by size tier, and monthly storage. Situational fees stack on top: low-inventory, inbound placement, aged-inventory surcharges, and peak-season rates.
How much is the FBA fee for a 1 lb product?
$4.60 in the $10-$50 price band, before the 3.5% fuel surcharge. With the surcharge it lands at $4.76; under $10, the Low-Price FBA rate is $3.78.
What is the Amazon fuel surcharge?
A 3.5% surcharge on FBA fulfillment fees, effective April 17, 2026. It averages about $0.17 per unit and applies on top of published rate cards, peak fees included.
Is the referral fee always 15%?
No. 15% covers most categories, but the exceptions matter. Consumer electronics pay 8%, apparel runs 5-17% by price, and beauty under $10 pays 8%.
How much is Amazon monthly storage?
$0.78 per cubic foot from January to September, $2.40 from October to December. Units older than 180 days draw aged-inventory surcharges on top of monthly storage.
What margin should an FBA product make?
There is no universal number; know your break-even price first. The worked example clears 41.1% before ads, and ad spend then decides what actually lands.
How do I avoid the low-inventory-level fee?
Hold more than 28 days of supply on both the 30-day and 90-day measures. The fee runs $0.32 to $2.09 per unit; a right-sized safety stock keeps you clear.
Does this calculator include peak-season fees?
Yes, enter your peak-season fulfillment fee and the math follows. From October 15 to January 14, a one-pound unit runs $4.89 in the $10-$50 band, plus the surcharge.