You just made your first Amazon sale and checked the payout. The number was lower than expected. If you used FBA, Amazon took fulfillment and storage fees on top of the referral commission. If you shipped it yourself with FBM, you spent hours packing, printing labels, and driving to the post office. Both models cost money, but in very different ways.
In this guide, we break down every fee and hidden cost for both Amazon FBA and FBM in 2026, run real dollar-by-dollar comparisons at three price points, and help you decide which model fits your business. No guesswork, just numbers.
What is FBA and FBM?
FBA (Fulfillment by Amazon) means you send your inventory to Amazon's warehouses. When a customer orders, Amazon picks, packs, and ships the product. They also handle customer service and returns. Your products automatically qualify for Prime and fast shipping. In exchange, you pay fulfillment fees, storage fees, and other charges on top of the standard referral fee.
FBM (Fulfilled by Merchant) means you store, pack, and ship products yourself. You handle customer service and returns. You still pay Amazon's referral fee (the same percentage as FBA), but you avoid all FBA-specific charges. The tradeoff is that your products do not get the Prime badge, shipping is slower, and the operational burden falls entirely on you.
About 78% of Amazon sellers use FBA, 34% use FBM, and 22% use a mix of both (sellers can use more than one method). The choice between them comes down to your product type, sales volume, and how much you value your time.
Complete FBA Fee Breakdown
FBA sellers pay four main types of fees: referral fees, fulfillment fees, storage fees, and a handful of situational charges. Here is exactly what each one costs in 2026.
Referral Fees
Amazon charges a referral fee on every sale, regardless of whether you use FBA or FBM. The percentage depends on the product category. Most categories fall between 8% and 17%, with 15% being the most common rate.
| Category | Referral Fee |
|---|---|
| Consumer Electronics | 8% |
| Computers | 8% |
| Home & Kitchen | 15% |
| Toys & Games | 15% |
| Sports & Outdoors | 15% |
| Health & Household | 15% |
| Clothing & Accessories ($0-$20) | 5% |
| Clothing & Accessories (over $20) | 17% |
| Jewelry | 20% |
| Grocery & Gourmet | 8-15% |
For all examples in this article, we use the standard 15% referral rate. If your product falls in a lower category like electronics (8%), your margins will be significantly better.
Fulfillment Fees
This is the core FBA cost: the per-unit fee Amazon charges to pick, pack, and ship your product. It depends on the item's size tier and weight.
| Size Tier | Weight | Fee Per Unit |
|---|---|---|
| Small Standard | Up to 16 oz | $2.88 |
| Large Standard | Up to 3 lb | $4.50 - $5.68 |
| Large Standard | 3 - 20 lb | $6.15 + $0.08/4 oz over 3 lb |
| Large Bulky (Oversize) | Up to 50 lb | $8.84 + $0.38/lb over 1st lb |
| Extra-Large | Up to 50 lb | $25.56 + $0.38/lb over 1st lb |
For a typical small, lightweight product (under 1 lb), the fulfillment fee is $2.88 per unit. This is actually very competitive compared to what you would pay to ship the same item yourself via USPS or UPS.
Storage Fees
Amazon charges monthly storage fees based on the volume (cubic feet) your inventory occupies in their warehouses. Rates change dramatically between standard season and peak season:
- January - September (standard): $0.87 per cubic foot per month
- October - December (peak): $2.40 per cubic foot per month
If your inventory sits for too long, aged inventory surcharges kick in:
- 181 - 365 days: additional $0.50 per cubic foot per month
- 366+ days: additional $6.90 per cubic foot per month
Other FBA Fees
Beyond the big three (referral, fulfillment, storage), FBA has several situational fees that can add up:
- Returns Processing Fee: For products with high return rates (above category threshold), Amazon charges a per-return fee based on weight, typically $0.07 to $3+. Clothing and shoes are charged on every return regardless of rate.
- Removal / Disposal Fees: If you want to pull inventory out of Amazon's warehouses, expect to pay about $0.50 per unit for removal or $0.15 - $0.50 per unit for disposal.
- Inbound Placement Fee: When shipping to a single Amazon warehouse instead of distributing across multiple locations, additional per-unit fees apply. For large items under 5 lb, this runs about $1.10 - $1.60 per unit.
- Low Inventory Level Fee: New in 2025, if your stock drops below 28 days of supply, Amazon charges approximately $0.48 per unit sold.
Complete FBM Cost Breakdown
FBM sellers avoid all of the FBA-specific fees above, but replace them with their own operational costs. Here is what you actually pay when you fulfill orders yourself.
Referral Fees (Same as FBA)
The referral fee is identical whether you use FBA or FBM. Amazon takes the same category-based percentage (typically 15%) from every sale. There is no discount or premium for choosing one fulfillment method over the other.
Shipping Costs
This is the biggest FBM expense. You pay the carrier directly for every order. Average US domestic shipping rates in 2026:
- USPS Ground Advantage (under 2 lb): $5 - $8
- UPS/FedEx Ground (2 - 5 lb): $7 - $10
- UPS/FedEx Ground (10 - 20 lb): $12 - $15
For a typical small product (1 - 2 lb), you can expect to pay around $7 - $8 per shipment via USPS. Compare this to FBA's $2.88 fulfillment fee for the same item, and you start to see why FBA's logistics scale makes a real difference.
Packaging and Storage
Packaging costs per unit:
- Cardboard box (medium): $0.50 - $1.00
- Poly mailer: $0.20 - $0.60
- Packing tape: $0.05 - $0.10
- Barcode label: $0.02
Total packaging cost per shipment is roughly $0.75 - $1.50 depending on your product and materials.
Storage costs: If you store inventory at home, the direct cost is zero (but you lose space). If you rent warehouse or storage space, expect to pay approximately $0.60 - $1.00 per square foot per month in the US.
Side-by-Side Comparison: $25, $50, and $100 Products
Let's put real numbers together. The table below compares total fees and net profit for both FBA and FBM at three common price points. We assume a 15% referral rate, a standard small product (under 1 lb) for FBA, and average USPS shipping + $1 packaging for FBM.
| Fee / Cost | FBA ($25) | FBM ($25) | FBA ($50) | FBM ($50) | FBA ($100) | FBM ($100) |
|---|---|---|---|---|---|---|
| Referral Fee (15%) | $3.75 | $3.75 | $7.50 | $7.50 | $15.00 | $15.00 |
| FBA Fulfillment | $2.88 | - | $2.88 | - | $2.88 | - |
| Shipping + Packaging | - | $8.00 | - | $11.00 | - | $13.00 |
| Total Fees | $6.63 | $11.75 | $10.38 | $18.50 | $17.88 | $28.00 |
| Net Profit | $18.37 | $13.25 | $39.62 | $31.50 | $82.12 | $72.00 |
| Profit Margin | 73.5% | 53.0% | 79.2% | 63.0% | 82.1% | 72.0% |
FBA wins on profit margin at every standard price point for small, lightweight products. The gap is largest on cheap items ($25): FBA keeps 73.5% while FBM keeps only 53%. As product price increases, FBM's fixed shipping cost matters less and the gap narrows, but FBA still comes out ahead. The math only flips for very heavy, bulky, or expensive products where FBA fulfillment fees escalate.
Pros and Cons of Each Model
FBA Advantages
- Prime badge and fast shipping - Your products automatically qualify for Prime, which can increase conversion rates by 15-30%.
- Buy Box advantage - FBA sellers are favored in Amazon's Buy Box algorithm, which drives the majority of sales.
- Hands-off fulfillment - Amazon handles picking, packing, shipping, customer service, and returns. You focus on sourcing and marketing.
- Scalability - No need to hire staff or rent warehouse space as your volume grows. Amazon's infrastructure scales with you.
- Lower per-unit shipping cost - Amazon's bulk carrier rates are significantly cheaper than what individual sellers can negotiate.
FBA Disadvantages
- Higher total fees - Fulfillment + storage + situational fees add up, especially for low-margin or slow-moving products.
- Less control over branding - You cannot use custom packaging, inserts, or branded shipping materials.
- Inventory risk - Long-term storage surcharges punish slow sellers. Aged inventory over 365 days costs $6.90/cubic foot/month.
- Prep requirements - Amazon has strict packaging and labeling rules. Non-compliance results in additional fees or rejected shipments.
FBM Advantages
- Lower fees on paper - No fulfillment or storage fees to Amazon. Your costs are shipping + packaging, which you control.
- Full control over branding - Custom packaging, thank-you cards, inserts, and branded experience.
- Better for large or heavy items - Furniture, oversized products, and heavy goods often cost less to ship yourself than through FBA.
- Multi-channel flexibility - You can fulfill orders from your own website, eBay, and other marketplaces from the same inventory.
- No inventory limits - Amazon sometimes restricts how much FBA inventory you can send. FBM has no such limits.
FBM Disadvantages
- No Prime badge - You lose access to Prime customers, which is a massive portion of Amazon's buyer base.
- Buy Box disadvantage - FBM sellers are less likely to win the Buy Box, especially in competitive categories.
- Operational burden - You handle every shipment, tracking update, customer question, and return. Late shipments hurt your account health.
- Slower shipping - Without Amazon's logistics network, delivery times are typically longer, which can lower customer satisfaction and reviews.
Break-Even Analysis: When FBA Beats FBM
The decision is not just about per-unit fees. Volume and product characteristics shift the math significantly.
Volume threshold: At low volumes (under 100 units per month), FBM can be cheaper because you avoid FBA storage fees and can ship from home. Once you cross approximately 200 units per month, FBA's lower per-unit shipping cost and operational efficiency start to outweigh its fees. The time you save not packing and shipping 200+ orders has real monetary value.
Price point threshold: For very expensive products (above $200), FBM may actually win. The 15% referral fee alone on a $200 item is $30. Add FBA's fulfillment fee and storage, and your margin gets squeezed. With FBM, you only pay referral + a fixed shipping cost, which becomes proportionally smaller as product price increases.
Product size and weight: This is where the math changes most. FBA's fulfillment fee for a small standard item ($2.88) is a bargain. But for an extra-large item, the fee jumps to $25+ per unit. If your product is large or heavy, FBM almost always wins on cost.
2025-2026 Fee Changes
Amazon did not raise core referral or fulfillment rates in 2025, but introduced several structural changes that carry into 2026:
- Returns Processing Fee (mid-2024 onward): Products with high return rates now incur per-return fees based on weight ($0.07 to $3+). Clothing and shoes are charged on every return.
- Low Inventory Level Fee (2025): If your FBA stock drops below 28 days of supply, Amazon charges approximately $0.48 per unit sold. This incentivizes keeping healthy inventory levels.
- Inbound Placement Discounts (2025): New ASINs get fee waivers on the first 100 units. Large bulky items received an average $0.58 per unit reduction in inbound fees.
New for 2026:
- Price-based fulfillment tiers: Starting January 2026, FBA fulfillment fees are calculated partly by product price, not just size. Products priced $10 - $50 see a +$0.08 increase; products over $50 see a +$0.31 increase per unit.
- Inbound error penalties: Incorrect labeling or shipping to the wrong fulfillment center now costs $0.32 - $5.72 per unit, a dramatic increase from previous rates.
- FBA Prep Service discontinued: Amazon is ending its in-house prep service. Sellers must now prepare and label products themselves or use third-party prep centers.
- Storage fees stable: Monthly storage rates remain at $0.87 (Jan-Sep) and $2.40 (Oct-Dec) per cubic foot.
The Hybrid Approach: Using Both
About 22% of Amazon sellers use both FBA and FBM, and for good reason. A hybrid strategy lets you optimize by product type:
- Use FBA for your best sellers: High-volume, small, lightweight products benefit most from Prime eligibility and FBA's lower per-unit shipping costs.
- Use FBM for slow movers: Products that sell fewer than 50 units per month can sit in FBA storage racking up fees. Ship them yourself and avoid aged inventory surcharges.
- Use FBM for oversized items: Large, heavy, or fragile products often cost significantly less to ship yourself than through FBA.
- Use FBM as backup: When FBA inventory runs out, an FBM listing keeps you selling while new stock ships to Amazon's warehouses.
The hybrid model gives you the Prime advantage where it matters most while keeping costs under control for products where FBA does not make financial sense.
Which Model Should You Choose?
Here is a simple decision framework based on the data:
Choose FBA if:
- Your product is small and lightweight (under 3 lb)
- You sell more than 100 units per month
- Your product is priced between $15 and $200
- You want Prime eligibility and Buy Box advantage
- You value time over margin optimization
Choose FBM if:
- Your product is large, heavy, or oversized
- You sell fewer than 50 units per month
- Your product is priced above $200
- You want full control over branding and customer experience
- You already have fulfillment infrastructure in place
Most Amazon sellers report net profit margins of 10-25%, with the median around 15-20%. Whether you use FBA or FBM, the key is running accurate fee calculations before committing to a price point.
