Adding VAT using a calculator is pretty straight forward, you first need to work out the “VAT fraction”. You do this by taking your VAT rate, divide by 100 then add 1.
An example of this using a 20% VAT rate would be 20/100 = 0.2 + 1 = VAT fraction OF 1.2.
A further example for 17.5% would be 17.5/100 + 1 = VAT fraction of 1.175.
Now you have your VAT fraction, you can use this to add VAT to a figure or remove VAT from a figure, here’s how.