Amazon FBA Profit Calculator (2026)
2026 fee rates including the April fuel surcharge, Large Bulky tiers, and TACoS ad spend.
What Does Amazon FBA Actually Cost in 2026?
Your Amazon FBA profit is your selling price minus referral fee, FBA fulfillment fee, storage fee, ad spend (TACoS), and your landed cost. In 2026, small standard-size items cost $3.86–$4.75 to fulfill and large standard items cost $5.40–$6.50+. A 3.5% fuel and logistics surcharge applies to all FBA fees from April 17, 2026. Most experienced sellers target 25%–35% net margin after all fees.
1. Product Economics
Strong product — high margin with a safe price buffer.
| Price | Margin | Profit / Unit |
|---|---|---|
| $27.99 | 23.3% | $6.52 |
| $28.99 | 26.4% | $7.64 |
| $29.99 | 29.2% | $8.75 |
| $30.99 | 31.8% | $9.87 |
| $31.99 | 34.3% | $10.98 |
How to Use This Amazon FBA Profit Calculator
This Amazon FBA profit calculator uses 2026 fee rates to show your true net margin after every cost that hits a real FBA order. Fill in your selling price, landed cost (COGS plus inbound shipping), unit weight, category, TACoS percentage, and expected monthly units. The audit button runs the full calculation and generates a pricing heatmap showing profit at prices above and below your current listing.
Switch to Deep Audit mode to add package dimensions, seasonality, inbound placement fees, and low inventory penalties. These advanced fees can add $1.00–$2.00 per unit to your true cost and are often left out of basic calculations.
2026 Amazon FBA Fee Structure
Amazon restructured FBA fulfillment fees on January 15, 2026, introducing three price bands — under $10, $10–$50, and over $50 — on top of the existing size and weight tiers. A 3.5% fuel and logistics surcharge took effect April 17, 2026, and applies to every standard-size fulfillment fee. According to Goat Consulting’s 2026 FBA fee breakdown, the biggest structural change for most sellers is that two identical products can now have different fulfillment fees if their selling prices fall in different price bands.
| Size Tier | Weight Range | Est. Fee (Non-Peak) |
|---|---|---|
| Small Standard | Up to 6 oz | $3.86 |
| Small Standard | 6 oz – 1 lb | $4.18 – $4.75 |
| Large Standard | 1 – 3 lb | $5.40 – $6.50 |
| Large Standard | 3 – 20 lb | $6.08 + $0.38/lb over 3 lb |
| Large Bulky | Up to 50 lb | $9.61 + $0.38/lb over 1 lb |
| Extra-Large | 50+ lb | $26.33+ |
Storage Fees
Off-peak storage (January through September) runs $0.78 per cubic foot for standard-size inventory. Q4 peak (October through December) jumps to $2.40 per cubic foot — roughly three times the off-peak rate. Aged inventory surcharges apply at 181 days ($6.90/cu ft at 366 days, $7.90/cu ft at 456+ days), making overstocking ahead of holiday season one of the most expensive mistakes an FBA seller can make.
What Is TACoS and Why It Belongs in Your FBA Calculation
TACoS stands for Total Advertising Cost of Sale. It is your total ad spend divided by total revenue. Most sellers see TACoS between 8% and 20% depending on category competitiveness and listing maturity. A new product launching into a competitive category may run 20–30% TACoS before organic ranking improves.
Leaving TACoS out of your Amazon FBA profit calculation gives you a margin figure that does not exist in practice. The SellerApp 2026 FBA fee guide confirms that total Amazon fee exposure — including referral, FBA, storage, and advertising — regularly reaches 35–45% of revenue for mid-market sellers before COGS is deducted.
Size Tier Detection — Standard vs Large Bulky
Amazon replaced the old Oversize tiers with two new categories in 2024: Large Bulky and Extra-Large. A product is classified as Large Bulky if its longest side exceeds 18 inches, median side exceeds 14 inches, shortest side exceeds 8 inches, or if the dimensional weight (volume ÷ 139) or unit weight exceeds 20 lbs. This calculator detects the tier automatically from your dimensions and weight inputs in Deep Audit mode.
Small differences in packaging dimensions can push a product from Large Standard into Large Bulky, adding $3+ per unit to fulfillment cost. As ShipSage’s 2026 FBA fee breakdown notes, auditing your packaging against tier thresholds is one of the fastest ways to recover margin on existing products.
Amazon FBA Profit FAQ
What are Amazon FBA fees in 2026?
What is a good profit margin for Amazon FBA in 2026?
How does the 2026 fuel surcharge affect FBA sellers?
What is dimensional weight and how does it affect my FBA fee?
Disclaimer: This Amazon FBA Profit Calculator provides estimates based on publicly available 2026 Amazon fee schedules. Actual fees vary by ASIN, account history, packaging dimensions recorded in Seller Central, and any account-specific surcharges. The 3.5% fuel surcharge effective April 17, 2026 is included in fulfillment fee calculations. Storage estimates assume one unit sold per month for storage allocation. This tool does not account for returns processing fees, aged inventory surcharges, removal fees, or promotional discounts. Always verify your specific product fees in Amazon’s Revenue Calculator in Seller Central before making sourcing or pricing decisions. UltimateInfoGuide is not affiliated with Amazon.