Amazon FBA profit & import-cost planner

US marketplace, USD. The numbers shown on first load are an example, not Amazon quotes. Enter the fulfilment fee from your ASIN fee preview, including any surcharge. This avoids guessing a size tier or using an unverified fee table.

Sale and account fees

Selling price

Referral rate from your category

For a tiered category, divide the quoted referral fee by the selling price and multiply by 100.

Quoted FBA fulfilment fee per unit

Include fuel/logistics surcharges in this input once.

Storage per sold unit

Other fees per sold unit

Inbound placement, preparation, aged stock and other applicable charges.

Units sold per month

Professional plan ($39.99/month)Off uses the Individual plan fee of $0.99 per item. Confirm plan eligibility and current charges with Amazon.

Calculate import duty in the same worksheet

Product costs

Cost of goods per unit

Inbound shipping per unit

Advertising per sold unit

Estimated net profit per order

$9.92

Uses your fee inputs; no live Amazon account connection.

Net margin

33.1%

Step-by-step breakdown of the calculation
Step	Working	Result
Selling price		$29.99
Marketplace commission	29.99 × 15%	-$4.50
Fulfilment		-$4.50
Storage per unit		-$0.20
Cost of goods		-$6.00
Inbound shipping		-$1.20
Returns at 5%Per return: handling + refund admin + written-off stock + the outbound fulfilment fee you do not get back + the 100% of commission the marketplace keeps.	13.40 × 0.05	-$0.67
Advertising per unit		-$3.00
Net profit per unit	29.99 − 20.07	$9.92
Net marginMargin is measured against net revenue, so it stays comparable across tax regimes.	9.92 ÷ 29.99 × 100	33.08 %
Monthly profit at 300 units	9.92 × 300 − 39.99 fixed	$2,936.49

Before committing to a purchase, reconcile these inputs to your Amazon fee preview and plan. Sales tax collected for a tax authority is not seller revenue. This model excludes income tax and cash-flow timing.

Amazon FBA on ShipMargin Rates checked 21 Sept 2026 How this is calculated