Most Amazon sellers calculate their profit margin wrong. They take their selling price, subtract the product cost and Amazon fees, and call it a day. But in 2026, tariffs can eat 25-60% of your product cost — and if you're not factoring that in, your "profitable" product might actually be losing money.
The line most sellers miss is Import Duties. In 2026, if you source from China, your effective tariff rate ranges from 27% to 72% depending on the product category. That $5 product from Alibaba? It might cost $7-8.50 after duties — before Amazon takes their cut.
Let's walk through a real example. You're selling a kitchen gadget sourced from China for $29.99 on Amazon.
❌ Wrong Calculation (Ignoring Tariffs)
Selling Price: $29.99
Product Cost: $5.00 | Shipping: $1.50 | Referral (15%): $4.50 | FBA Fee: $3.50
Profit: $29.99 - $14.50 = $15.49 (51.6% margin)
✅ Correct Calculation (With 2026 Tariffs)
Selling Price: $29.99
Product Cost: $5.00 | Shipping: $1.50 | Tariff (34% on $6.50): $2.21 | Referral: $4.50 | FBA Fee: $3.50
Profit: $29.99 - $16.71 = $13.28 (44.3% margin)
That's $2.21 per unit difference — or $2,210 per 1,000 units. On higher-value products, the impact is even larger.
| Category | From China | From Vietnam | From Mexico (USMCA) |
|---|---|---|---|
| Electronics | 42.5% | 17.5% | 2.5% |
| Kitchen/Home | 44% | 19% | 4% |
| Clothing | 58% | 33% | 18% |
| Toys | 43% | 18% | 3% |
| Beauty | 44% | 19% | 4% |
30%+ margin: Excellent. You have room for PPC, price competition, and tariff increases. This is the target.
20-30% margin: Healthy but tight. Be careful with PPC spend and monitor tariff changes closely.
10-20% margin: Dangerous. One tariff increase or Amazon fee change could wipe out your profit. Consider raising your price or switching suppliers.
Under 10%: Not viable for most sellers. The risk-adjusted return isn't worth it.
Vietnam and India face 15-20% total tariffs vs. 40-60% for China. The product cost might be slightly higher, but the tariff savings more than compensate. Mexico under USMCA is even better — as low as 0-5% on many products.
Even a $0.50 reduction in product cost saves $500 per 1,000 units. Use tools like Helium 10 to find products where the tariff math works before you commit — and reduces your tariff bill too, since duties are calculated as a percentage of product value.
Similar products can have very different MFN rates. A product classified as a "plastic household article" at 3.4% versus a "plastic toy" at 0% makes a real difference at scale.
Calculate Your Real FBA Margin
Our calculator includes 2026 tariff costs automatically.
FBA Profit Calculator →Target 30% or higher after all costs including tariffs. Below 20% is risky in the current tariff environment.
Yes. You pay tariffs when goods enter the US, before they reach Amazon's warehouse. The importer of record (you) is responsible.
Use our FBA Profit Calculator or Tariff Calculator. For exact rates, look up your product's HTS code at hts.usitc.gov.