Everything an Amazon seller needs in 2026. Free calculators for FBA profit, storage fees, ACOS, and PPC — plus in-depth guides backed by official Seller Central data. Updated April 2026.
Amazon's FBA program handles storage, picking, packing, and shipping for sellers — and Prime eligibility comes free. But FBA fees in 2026 are more complex than ever: referral fees (6–17% by category), fulfillment fees ($3.22–$52.38/unit), fuel surcharges, residential delivery surcharges, and storage fees that triple during the October–December peak season.
Most new sellers are surprised to learn that FBA consumes 25–35% of gross revenue before product cost. Use our calculators below to model your exact margin before you launch — and read our fee guides for strategies to reduce every cost category.
Complete margin analysis: referral fees, FBA fulfillment, storage, PPC spend, returns, and monthly profit. Updated for 2026 surcharges.
Open Calculator →Itemized breakdown: referral fee, fulfillment fee, storage fee, and closing costs. See exactly what Amazon deducts from every sale.
Open Calculator →Calculate net revenue after referral fees, FBA fulfillment, storage, and refunds. Know exactly what you keep per sale. Updated May 2026.
Open Calculator → NEWMonthly and peak-season storage costs by cubic footage. Includes long-term storage surcharge estimator and dimensional weight calculator.
Open Calculator →Calculate advertising cost of sales, TACOS, RoAS, and break-even ACOS. Find the ACOS threshold where your ads become profitable.
Open Calculator →Advanced PPC metrics: ACOS, TACOS, RoAS, break-even ACOS, and ad profit. Model different bid scenarios before spending.
Open Calculator →Compare self-fulfillment vs FBA costs side-by-side. Enter your product weight, dimensions, and monthly volume to find the cheaper option.
Open Calculator →Shopify charges $39/mo + 2.9% + $0.30 per transaction. Amazon FBA charges 6–17% referral + $3.22–$52.38 fulfillment. Which keeps more of your profit?
eBay charges 13.25% final value fee for most categories (10.9–14.9% by category, payment processing included under Managed Payments). Amazon referral fees vary by category. Use both calculators to compare your specific product.
| Fee Type | 2026 Rate | Notes |
|---|---|---|
| Referral Fee (Most Categories) | 15% | Varies: Electronics 8%, Clothing 17%, Beauty 8%, Books 15% |
| FBA Fulfillment (Standard, 1–2 lb) | $5.00–$6.50/unit | Size tier and weight determine exact fee. $3.22–$52.38 range |
| Storage (Jan–Sep) | $0.78/cu ft | Standard size. Oversize $0.56/cu ft |
| Storage (Oct–Dec, Peak) | $2.40/cu ft | 3x normal rate. Standard size. Oversize $1.40/cu ft |
| Long-Term Storage (180+ days) | +$6.90/cu ft | Inventoried before Feb 15 charged semi-annually on Aug 15 |
| Fuel Surcharge | $0.05–$0.25/unit | Varies by size tier |
| Residential Delivery Surcharge | $3.60/unit | For shipments to residential addresses |
| Peak Season Surcharge | Up to $2.30/unit | Oct–Dec for select categories. Varies by size tier |
Source: Amazon Seller Central — rates as of April 2026. Fees subject to change. Verify current rates before launch.
Enter your product specifics into any calculator above — or start with our most popular tool for full-margin analysis including 2026 surcharges.
Open FBA Profit Calculator