
BY VINCENT VU
Lab 916
Vince helps established brands take control of their Amazon channel through expert marketplace management.
Amazon FBA Fees Calculator: Complete Breakdown of Every Fee in 2026
March 7, 2026
14 min read
Use our Amazon FBA fees calculator guide to understand every fee Amazon charges sellers in 2026. Referral fees, fulfillment fees, storage fees, and more — with example calculations.
Understanding Amazon FBA fees is the difference between running a profitable business and bleeding money on every sale. Amazon charges multiple layers of fees — referral fees, fulfillment fees, storage fees, and several others — and they change regularly. If you don't know exactly what Amazon takes from each sale, you can't price your products correctly, forecast margins, or make smart sourcing decisions.
At Lab 916, we manage over $250 million in Amazon revenue across 40+ brands. We calculate FBA fees on thousands of products every month, and we've seen how even small fee miscalculations compound into significant profit loss over time. This guide breaks down every Amazon FBA fee in 2026, shows you how to calculate them, and explains how to use Amazon's FBA Revenue Calculator to verify your margins before committing to any product.
How Amazon FBA Fees Work
When you sell through Fulfillment by Amazon, you're paying Amazon to store your inventory in their warehouses, pick and pack orders, ship them to customers, and handle returns. In exchange, your products get the Prime badge, which dramatically increases visibility and conversion rates.
Amazon's FBA fee structure has several components, and they all apply simultaneously. On a single sale, you might pay a referral fee, an FBA fulfillment fee, monthly storage fees, and potentially additional fees depending on your product type and account. Each fee is calculated differently, which is why using an FBA calculator before sourcing any product is essential.
The two biggest fees on every sale are the referral fee (a percentage of the sale price) and the FBA fulfillment fee (a flat fee based on size and weight). Together, these typically account for 20% to 40% of your selling price. Storage fees, while smaller per unit, add up fast if your inventory sits in Amazon's warehouses for extended periods.
Amazon Referral Fees
Amazon charges a referral fee on every item sold, regardless of whether you use FBA or fulfill orders yourself. This is essentially Amazon's commission for giving you access to their marketplace and customer base.
Referral fees are calculated as a percentage of the total sale price, including the item price and any shipping or gift wrap charges. The percentage varies by product category, but most categories fall between 8% and 15%. Here's how the major categories break down:
Most product categories — including Home & Kitchen, Sports & Outdoors, Toys & Games, Health & Beauty, and Electronics — charge a 15% referral fee. This is the standard rate you should assume unless your category has a specific exception.
Some categories have lower rates. Amazon Device Accessories charge 45%. Automotive and Powersports charge 12%. Computers charge 8%. Video Game Consoles charge 8%. Full-Size Appliances charge 8% on items over $300.
A few categories have minimum referral fees of $0.30, meaning Amazon will charge whichever is greater: the percentage-based fee or $0.30. This primarily affects very low-priced items.
For example, if you sell a kitchen gadget for $25.00, your referral fee would be $25.00 × 15% = $3.75. On a $100 electronics item, the referral fee would be $100 × 15% = $15.00. These fees come directly off the top before any other costs are considered.
Amazon FBA Fulfillment Fees
FBA fulfillment fees cover the cost of Amazon picking your product from their warehouse shelf, packing it, shipping it to the customer, and handling any customer service or returns. These fees are charged per unit sold and are based on the product's size tier and shipping weight.
Amazon classifies products into size tiers: Small Standard-Size, Large Standard-Size, Small Oversize, Large Oversize, and Special Oversize. The boundaries between tiers are determined by the product's dimensions and weight when packaged.
For standard-size items (the most common tier for most sellers), here are the 2026 FBA fulfillment fee ranges:
Small Standard-Size (16 oz or less, max 15" × 12" × 0.75"): $3.06 to $3.68 depending on weight.
Large Standard-Size (up to 20 lbs, max 18" × 14" × 8"): $3.68 to $7.00+ depending on weight. Items between 1-2 lbs typically cost around $5.00 to $5.50 in fulfillment fees. Items between 2-3 lbs run $5.50 to $6.50.
Small Oversize (up to 70 lbs, max 60" × 30"): Starting around $9.73 plus weight-based surcharges.
Large Oversize (up to 150 lbs, max 108" longest side): Starting around $89.98 plus weight-based surcharges.
To illustrate, let's walk through a real example. Say you're selling a standard-size product that weighs 12 ounces and is packaged in a box that's 10" × 6" × 3". This falls into the Large Standard-Size tier. The FBA fulfillment fee would be approximately $3.68. If that same product weighed 1.5 lbs, the fee jumps to roughly $5.40.
This is why product weight and dimensions matter so much for FBA profitability. A few ounces can push you into a higher fee bracket, and oversized products face dramatically higher fulfillment costs that can destroy margins on lower-priced items.
Amazon FBA Storage Fees
Amazon charges monthly inventory storage fees based on the volume of space your products occupy in their fulfillment centers. These fees are calculated per cubic foot and vary by time of year.
Standard-size storage fees are $0.78 per cubic foot from January through September and $2.40 per cubic foot from October through December (the holiday surge pricing). Oversize storage fees are $0.56 per cubic foot from January through September and $1.40 per cubic foot from October through December.
The cubic footage is calculated based on your product's unit dimensions. If you have 100 units of a product that takes up 0.25 cubic feet each, that's 25 cubic feet of storage. In a standard month, you'd pay 25 × $0.78 = $19.50. During Q4 holiday months, that same inventory costs 25 × $2.40 = $60.00.
Storage fees are assessed on the 15th of each month based on your average daily inventory volume. This means that even if you sell through most of your inventory by mid-month, you're still paying for the storage space it occupied during the first half.
Aged Inventory Surcharge (Long-Term Storage Fees)
Amazon also charges an aged inventory surcharge on units that have been in their fulfillment centers for extended periods. This fee is in addition to monthly storage fees and is designed to discourage sellers from using Amazon's warehouses as long-term storage.
Units stored for 181 to 210 days incur an additional surcharge. Units stored for 211 to 240 days face a higher surcharge, and the penalties increase in 30-day increments up to 365+ days, where the surcharge can reach $6.90 per cubic foot or $0.15 per unit, whichever is greater.
This is a margin killer for slow-moving inventory. If you send 500 units of a product to FBA and it takes 8 months to sell through, the aged inventory surcharges alone could wipe out your profit on the remaining units. Smart FBA inventory management means keeping your days of supply between 30 and 90 days and creating removal orders for slow-moving stock before the surcharges kick in.
Other Amazon Seller Fees to Know
Beyond the big three (referral, fulfillment, and storage), Amazon charges several additional fees that can impact your bottom line.
Selling Plan Fees
Amazon offers two selling plans. The Individual plan costs $0.99 per item sold with no monthly subscription. The Professional plan costs $39.99 per month with no per-item fee. If you sell more than 40 units per month, the Professional plan is cheaper. It also unlocks advertising, bulk tools, and advanced reporting — all essential for serious sellers.
Returns Processing Fee
For most product categories, Amazon doesn't charge a separate returns processing fee — the return shipping cost is included in your FBA fulfillment fee. However, for categories with historically high return rates (Apparel, Shoes, Watches, Jewelry, and a few others), Amazon charges a returns processing fee equal to the FBA fulfillment fee for that item. This effectively doubles your fulfillment cost on returned items in those categories.
Removal and Disposal Fees
If you need to pull inventory out of Amazon's warehouses, you'll pay removal fees: $0.97 per standard-size unit for returns to your address or $0.32 per unit for disposal. For oversize items, removal fees are $4.22 per unit and disposal is $2.47 per unit. Creating removal orders before aged inventory surcharges hit is often the financially smart move.
Unplanned Service Fees
If you send inventory to Amazon that isn't properly labeled, prepped, or packaged according to their FBA shipping requirements, Amazon will fix the issue and charge you an unplanned service fee. These range from $0.20 for missing barcodes to $1.00+ for bagging or bubble wrapping. These fees are avoidable — just follow Amazon's prep guidelines precisely.
Inbound Placement Service Fee
When you create an FBA shipment, Amazon may split your inventory across multiple fulfillment centers. If you want to send everything to a single warehouse instead, Amazon charges an inbound placement service fee. The fee varies by product size and weight, ranging from roughly $0.27 to $1.58 per unit for standard-size items. Many sellers choose to accept the split shipments to avoid this fee.
How to Use Amazon's FBA Revenue Calculator
Amazon provides a free FBA Revenue Calculator (also called the FBA Profitability Calculator) inside Seller Central. This tool is the most accurate way to estimate your per-unit profit on any product because it uses Amazon's actual fee schedules.
Here's how to use it step by step:
Step 1: Go to Seller Central and search for "FBA Revenue Calculator" or navigate to it through the FBA menu. You can also access it directly at sellercentral.amazon.com/hz/fba/profitabilitycalculator.
Step 2: Search for your product by ASIN, UPC, EAN, or keyword. The calculator will pull up the product listing with its current dimensions and weight.
Step 3: Enter your selling price and your cost of goods (what you paid for the product, including shipping to Amazon). The calculator will automatically compute all applicable fees: referral fee, FBA fulfillment fee, and estimated monthly storage.
Step 4: Review the fee breakdown. The calculator shows each fee individually, your estimated net profit, and your net margin percentage. It also compares FBA fulfillment against self-fulfillment so you can see which option is more profitable.
You should run every product through this calculator before purchasing inventory. This is the single most important habit for maintaining healthy margins. Experienced sellers make it a rule: if it doesn't pencil out in the FBA calculator, they don't buy it.
Third-party tools like Keepa, SellerAmp, Helium 10, and Jungle Scout also include FBA fee calculators with additional features like historical pricing, sales velocity estimates, and competition analysis. These tools are worth the investment once you're doing consistent volume, but Amazon's built-in calculator is sufficient for getting started.
Example FBA Fee Calculation: From Purchase to Profit
Let's walk through a complete example to show how all these fees work together.
Imagine you find a kitchen gadget at a wholesale cost of $8.00 per unit. You plan to sell it on Amazon for $24.99. The product weighs 14 ounces and its packaged dimensions are 9" × 5" × 3". Here's the full fee breakdown:
Selling price: $24.99
Referral fee (15% of $24.99): $3.75
FBA fulfillment fee (Large Standard-Size, under 1 lb): approximately $3.68
Monthly storage fee (estimated at $0.05 per unit for 30 days of storage): $0.05
Total Amazon fees: $7.48
Cost of goods: $8.00
Shipping to FBA: approximately $0.50 per unit
Total cost: $15.98
Net profit per unit: $24.99 − $15.98 = $9.01
Net margin: 36%
ROI: 106% ($9.01 profit ÷ $8.50 total investment)
This is a strong product. The 36% net margin and 106% ROI both exceed the minimum thresholds most experienced sellers target. But notice how the Amazon fees alone ($7.48) represent 30% of the sale price. If you had priced this product at $19.99 instead of $24.99, your profit drops to $4.01 per unit — still viable, but far less attractive. Pricing decisions and fee awareness go hand in hand.
Now compare this to a heavier product. Same $8.00 cost, same $24.99 price, but this one weighs 3 lbs and is 14" × 10" × 6". The FBA fulfillment fee jumps to roughly $6.50, and your net profit drops to $6.19 per unit. A few extra pounds can cut your margin significantly — which is exactly why the FBA revenue calculator matters.
Tips to Reduce Your Amazon FBA Fees
While you can't avoid Amazon's fees entirely, you can make strategic decisions to minimize their impact on your margins.
Optimize your packaging. Smaller, lighter packaging means lower fulfillment fees. If you can reduce your product's packaged dimensions to qualify for a smaller size tier, you could save $1 to $3 per unit. Some sellers redesign their packaging specifically to stay within standard-size thresholds.
Monitor your inventory age. Set up automated alerts when inventory approaches the 181-day mark. Create removal orders or run promotions to clear slow-moving stock before aged inventory surcharges hit. A product sold at a 5% margin is better than one incurring $6.90 per cubic foot in long-term storage fees.
Use Amazon's inventory tools. The IPI score (Inventory Performance Index) reflects how efficiently you manage FBA inventory. A higher IPI score gives you more storage capacity and avoids overage fees. Keep your IPI above 450 by maintaining healthy sell-through rates and avoiding excess stock.
Ship smart. Accept Amazon's split shipments to avoid inbound placement fees when the savings outweigh the additional shipping costs. Use Amazon's partnered carrier rates for discounted shipping to fulfillment centers.
Price for profit, not revenue. Use the true profit calculation approach — factor in every fee, your cost of goods, shipping, and your time before setting prices. It's better to sell fewer units at a healthy margin than to chase volume with razor-thin profits that evaporate the moment a fee increases.
Frequently Asked Questions
How Much Does Amazon Take From a $100 Sale?
On a $100 sale, Amazon typically takes 15% as a referral fee ($15.00) plus an FBA fulfillment fee that ranges from $3.68 to $7.00+ depending on size and weight. For a standard-size item under 1 lb, total fees would be approximately $18.68 to $22.00 — meaning Amazon takes roughly 19% to 22% of your sale price. Add in your cost of goods, and you can see why margins need careful management.
How Much Does Amazon FBA Cost Per Month?
Fixed monthly costs include the Professional selling plan at $39.99/month. Variable monthly costs depend on your volume: storage fees average $0.78 per cubic foot (more during Q4), and fulfillment fees are charged per unit sold. A seller moving 200 standard-size units per month might pay $39.99 in subscription fees, $15 to $30 in storage, and $700 to $1,200 in fulfillment fees — roughly $755 to $1,270 per month in total Amazon fees.
Is Amazon FBA Still Profitable in 2026?
Yes. Despite fee increases over the years, FBA remains profitable for sellers who source wisely, manage inventory efficiently, and price strategically. The key is running every product through the FBA revenue calculator before purchasing and targeting a minimum 30% ROI after all fees. Sellers who skip this step are the ones who struggle with profitability. Brands that invest in proper listing optimization and PPC management can push margins even higher by improving conversion rates and reducing advertising waste.
What Is the Best Amazon FBA Calculator?
Amazon's own FBA Revenue Calculator (free in Seller Central) is the most accurate because it uses Amazon's actual fee data for each specific product. For additional features like historical pricing, competition analysis, and bulk calculations, third-party tools like Keepa, Helium 10's Profitability Calculator, and Jungle Scout's FBA Profit Calculator are excellent options. Most serious sellers use Amazon's built-in tool for quick checks and a third-party tool for deeper analysis.
How Do I Avoid Long-Term Storage Fees on Amazon?
Keep your inventory turnover tight. Send only 60 to 90 days of supply to FBA at a time and replenish frequently rather than sending large bulk shipments. Monitor your inventory age in Seller Central's Inventory Dashboard, and create removal orders or run clearance promotions when units approach the 181-day threshold. Some sellers also use Amazon Outlet or Lightning Deals to accelerate sales on aging inventory — learn more in our Lightning Deals guide.
Lab 916 is a full-service Amazon marketplace management agency that helps established brands launch, grow, and protect their Amazon channel. From PPC management to full account management, our team of Amazon experts handles it all. Get a free quote to see how we can help your brand grow on Amazon.



