Free CalcCommerce calculator

Amazon FBA Profit Margin Calculator

Estimate per-unit profit, contribution margin and advertising room from your selling price, VAT, landed cost and Amazon fees.

Enter your costs

Selling price (£)

VAT rate (%)

Price includes VAT?

Landed product cost (£)

Referral fee (£)

Fulfilment fee (£)

Other variable costs (£)

Average ad spend per attributed sale (£)Use £0 to view profit before advertising.

Your estimate

Net revenue after VAT

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Profit before ads

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Profit after ads

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Profit margin on net revenue

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Break-even ACOS

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What costs should Amazon sellers include?

Start with the customer selling price, then account consistently for VAT where relevant, landed product cost, referral fee, fulfilment fee and other material per-order costs. Advertising is shown separately so you can see how much contribution exists before PPC.

Why profit margin can be misleading

A SKU can look healthy before advertising and weak after advertising. Use your real search-term and campaign data, and keep product economics updated when Amazon fees or sourcing costs change.

Need a fuller model?

The paid Amazon FBA Profit Calculator - UK is built for repeat use and scenario planning rather than one-off checks.

Independent planning tool. CalcCommerce is not affiliated with or endorsed by Amazon. Results depend on the figures entered and are estimates, not accounting, tax, legal or financial advice. Verify current Amazon fees and your own tax treatment.