The number helps the Government track one’s earnings and ensures people pay the right amount of tax.
Employees pay 13.25 percent on earnings between £9,564 and £50,268. If they earn over £50,268 they’ll be taxed an extra 3.25 percent.
People can find out how much they’ve been taxed by checking their pay slip each month.
To help households with the cost of living crisis, the Government announced a package of measures to help people.