To calculate VAT on £150, you multiply the amount by 20%, which gives £30 in VAT.
You then add this to the original amount to get a total of £180, including VAT.
This method works for any amount using the standard UK VAT rate.
Related VAT Calculations
How much VAT is on £100?
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How much VAT is on £1000?
This example uses the standard UK VAT rate of 20%. Always check official HMRC guidance or consult a professional for specific situations.