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General3 min read

US Tariffs 2026: How Much Are You Really Losing Per Order?

Section 301 and HTS duty changes compress ecommerce margin before FBA fees apply. Calculate per-unit tariff cost and annual PO impact for 2026.

Import tariffs are not a line item on your Amazon settlement report — they hit before FBA fees, buried in COGS or supplier invoices. When Section 301 rates shift on your HTS code, the same $8.50 landed cost becomes $10.20 overnight, and your 30% gross margin becomes 18% without changing the sale price.

Most ecommerce sellers discover this at reorder, not at launch. Here is how to quantify the damage per order before you sign the next PO.

How tariff cost flows into margin

Tariff is applied to customs value (typically product cost + freight to port), not retail price. For a simplified US ecommerce model:

const tariffPerUnit = productCost * (tariffRate / 100);
const trueLandedCost = productCost + tariffPerUnit;
const marginImpact = (tariffPerUnit / salePrice) * 100;

A 25% tariff on $8.50 COGS adds $2.13/unit. On a $34.99 sale, that is 6.1 points of margin gone — before referral, FBA, or ads.

Section 301 and category risk

Not all categories move together. Electronics components, steel/aluminum inputs, and certain consumer goods saw rate adjustments entering 2026. Your supplier's "same price as last year" often means they absorbed one cycle — not that duties are stable.

Verify HTS classification with your customs broker before scaling inventory. Misclassification risk exceeds the tariff delta in many audits.

Tariff + FBA: the double squeeze

Sellers importing and fulfilling via FBA pay:

  1. Tariff on inbound COGS
  2. Referral on retail price
  3. FBA fulfillment + fuel surcharge
  4. Storage if velocity misses

Tariff is the only cost that scales with import volume regardless of sell-through. Dead inventory with elevated duty is worse than dead inventory at old duty rates.

Annual PO impact math

If you import 2,000 units/month at $2.13 tariff/unit:

  • Monthly tariff cost: $4,260
  • Annual: $51,120

That is not accounting — that is a hiring budget absorbed by duty. Model annual impact before approving supplier quotes that assume 2024 duty rates.

What to do before your next reorder

  1. Get current HTS rate for your SKU from a licensed broker
  2. Add tariff to true landed cost in your profit calculator
  3. Compare break-even sale price at old vs new duty
  4. Negotiate supplier split or retail price increase with data

Use FeeYield's Tariff Impact Calculator with your product cost, tariff rate, sale price, and monthly volume — then layer Amazon FBA fees on the post-tariff COGS.

Bottom line

Tariffs are a silent margin tax. They do not show on marketplace fee reports. Sellers who model duty in COGS before FBA fees reprice correctly; sellers who do not learn at the PO stage when cash is already committed.

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