VAT Inclusive Margin Calculator
Calculate your real margin
This calculator shows your true profit and margin when your selling price includes VAT but your costs are net.
Many businesses overestimate their margins because they forget that VAT is not part of their revenue.
To calculate real profit, VAT must be removed from the selling price before comparing it to costs.
This tool helps you understand your actual margin so you can price correctly and avoid hidden losses.
Understanding your margin
The calculator removes VAT from your selling price to reveal the true revenue your business keeps.
Your profit is calculated using this net amount, not the VAT-inclusive price.
This often results in a lower margin than expected.
How the calculation works
First, VAT is removed from the selling price to get the net value.
Then profit is calculated by subtracting cost from the net selling price.
Margin is calculated as profit divided by the net selling price.
Why VAT reduces your margin
- VAT is not revenue: It is paid to HMRC
- Reduces effective selling price: Your real income is lower
- Impacts pricing strategy: Must be included in calculations
- Hidden margin loss: Many businesses overlook this
Ignoring VAT in margin calculations can lead to underpricing and reduced profitability.
Examples
Example 1:
£120 inc VAT → £100 net → £70 cost → £30 profit → 30% margin
Example 2:
£52.50 inc VAT → £50 net → £40 cost → £10 profit → 20% margin
Example 3 (Common mistake):
Using gross price instead of net overstates margin.
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Frequently asked questions
Does VAT reduce margin?
Yes, because it is not part of your profit.
Should I remove VAT before calculating margin?
Yes, always use net price.
Why is my margin lower than expected?
Because VAT reduces your real revenue.