Margin Calculation for UK Ecommerce Sellers
A solid margin calculation in the UK starts with VAT-inclusive pricing. If you are VAT-registered, 20% of the shelf price is tax — not profit. Then subtract product cost, shipping, ads, and Shopify fees.
👉 Use our Dropshipping Profit Calculator UK as a margin calculator built for GBP + VAT.
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Profit Margin Calculation (UK Formula)
Profit margin % = (Net Profit ÷ Selling Price) × 100
For VAT-registered sellers:
1. Take VAT-inclusive price 2. Extract VAT (price × 20/120) 3. Subtract COGS, shipping, CPA, and platform fees 4. Divide net profit by selling price
This is also how a price margin calculator / pricing margin calculator should work for UK retail — tax-inclusive by default.
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Shopify Fees in the UK
Shopify fees usually mean:
- Monthly plan cost
- Shopify Payments (% + fixed pence per order)
Always model shopify fee impact per unit. A product that looks fine before fees often fails after VAT + CPA + payments.
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Margin and Profit Calculator Checklist (UK)
- [ ] VAT treated correctly
- [ ] AliExpress/supplier cost in GBP
- [ ] Shipping / returns buffer
- [ ] Ad CPA per order
- [ ] Shopify fees or eBay/Amazon fees
Run the full profit and margin calculator flow here: 👉 UK Dropshipping Profit Calculator
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