Why this is not a simple rule of three
You cannot just gross up a net by a fixed percentage: tax brackets are progressive, contributions have maximums, and the enhanced pension contribution reduces taxable income. Our reverse tool therefore runs the full calculation backwards until it finds the exact gross whose net matches your target — then shows you all the logic, line by line.
I want to check a gross I was offered instead of targeting a net.
Use the net salary calculator: enter the offered gross and see the matching net, with the same breakdown.