Margin After Fees Calculator

Calculate margin after fees

The margin after fees calculator shows your true profit after accounting for platform fees and payment processing costs. This is one of the most critical calculations for ecommerce businesses selling on platforms like Amazon, Etsy, Shopify, or eBay.

Many sellers underestimate how much fees reduce profitability. A product that appears profitable before fees can quickly become unprofitable once transaction costs are included.

This calculator helps you understand your real margin so you can price correctly, avoid hidden losses, and build a sustainable business model.

Understanding your result

The result shows how much profit remains after fees are deducted, along with your true margin percentage.

For example, a 30% margin after fees means that £0.30 of every £1 sale is actual profit after all costs and fees are paid.

If your margin is too low, your business may struggle to scale profitably, especially when advertising or increasing costs.

How it works

Formula:

Fees = Price × Fee %

Profit = Price − Fees − Cost

Margin = Profit ÷ Price × 100

This ensures that all transaction-based costs are included in your profit calculation.

How to improve your margin after fees

  • Increase your price: Offset platform and payment fees.
  • Reduce costs: Improve sourcing or production efficiency.
  • Switch platforms: Lower fee structures can improve margins.
  • Optimise payment methods: Reduce processing fees.

Understanding your true margin after fees is essential for long-term profitability.

Examples

Example 1:
Price = £50
Cost = £30
Fee = 10%
Fees = £5
Profit = £15
Margin = 30%

Example 2:
Price = £25
Cost = £16
Fee = 6.5%
Profit ≈ £7.37
Margin ≈ 29.48%

Example 3 (Ecommerce):
Price = £40
Cost = £22
Fee = 12%
Profit = £13.20
This shows how fees significantly impact profitability.

Related calculators

Frequently asked questions

What is margin after fees?

Your real profit margin after all fees are deducted.

Do fees really matter?

Yes, they can significantly reduce profitability.

Can I ignore fees?

No, ignoring fees leads to incorrect pricing and losses.