United Kingdom Price After Tax Calculator

Tax = net price × rate ÷ 100; gross = net + tax Tax is applied to the net price, so the gross is the net multiplied by one plus the rate. Note that tax as a share of the gross is always lower than the headline rate — 20% on net is 16.67% of gross, which is the figure to use when working backwards from a tax-inclusive price.

United Kingdom. Quoting the wrong side of a tax-inclusive price is one of the most common invoicing errors, and it compounds across every line of an order.

This calculator takes 3 inputs: Price before tax, Applicable tax rate, Quantity. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.