The Real Cost of Selling on Amazon in 2025

Ask most brands what it costs to sell on Amazon and they'll rattle off referral fees and FBA charges. But the actual cost of selling on Amazon includes at least a dozen line items that quietly eat into your margins. We manage P&Ls for 100+ brands, and the gap between what sellers think they're spending and what they're actually spending averages 15-25%.

The Fees Everyone Knows About

Referral fees run 8-15% depending on category. Most categories sit at 15%. Grocery and consumables can be lower. These haven't changed much and probably won't.

FBA fees cover pick, pack, and ship. For a standard-size item under 1 lb, you're looking at roughly $3.22 per unit as of early 2025. Amazon adjusted these fees again this year (more on that in our Amazon operations breakdown), and the changes disproportionately hit larger, heavier products.

The Fees That Sneak Up On You

Storage Fees

Monthly storage is $0.87 per cubic foot from January-September and $2.40 per cubic foot October-December. But the real killer is aged inventory surcharges. Anything sitting in FBA for 181+ days gets hit with extra fees that can exceed the product's wholesale cost. We've seen brands lose $50,000+ per quarter to aged inventory they forgot about.

Advertising Costs

PPC isn't optional anymore. Average cost-per-click across Amazon has risen to $1.20-$1.80 depending on category. Most competitive categories see CPCs north of $2.00. Plan for advertising to consume 10-15% of your gross revenue, minimum. Brands trying to grow aggressively should budget 20-25%.

Returns and Refunds

Amazon's return rate averages 5-15% depending on category. Apparel runs higher, sometimes 25-30%. Every return costs you the original shipping plus a return processing fee, and many returned items aren't resellable. Budget 3-8% of revenue for return-related losses.

Photography and Content

Professional product photography runs $200-$500 per ASIN for a standard set of images. A+ Content design adds another $300-$800. Video content for Sponsored Brand Video campaigns costs $1,000-$5,000 per product. These are one-time costs, but they add up fast when you have a large catalog.

The Cost of Selling on Amazon: A Real Example

Here's a simplified P&L for a product selling at $29.99:

• Product cost (landed): $7.50 (25%)
• Referral fee (15%): $4.50
• FBA fee: $3.50
• PPC spend (12% of revenue): $3.60
• Returns/damages (6%): $1.80
• Storage + misc Amazon fees: $0.60
• Total costs: $21.50
• Net margin: $8.49 (28.3%)

That 28% margin looks decent until you factor in overhead: software tools ($200-$2,000/month), agency fees or in-house payroll, product liability insurance, and brand registry costs. Real net margins for most Amazon brands land between 10-20%.

Where Brands Waste the Most Money

After managing hundreds of accounts, the three biggest margin killers are:

1. Unoptimized advertising. Brands spending 20% of revenue on ads when 12% would deliver the same sales volume. The difference goes straight to Amazon's pocket.

2. Poor inventory planning. Stockouts lose you sales and organic rank. Overstocking triggers aged inventory fees. The sweet spot is 60-90 days of inventory, and hitting it consistently requires real forecasting discipline.

3. Ignoring profitability by SKU. Most brands have 10-20% of their catalog that's actively losing money. Kill those SKUs or fix their economics.

The cost of selling on Amazon is manageable when you track every dollar. It becomes a problem when you're running blind. If you want a full audit of your Amazon P&L, our full-service management team can map every cost center and find the leaks.