If you work in the UK, you’ve probably seen codes like “1257L” or “1257L W1” on your payslip. You might wonder what these mean and how they affect your pay. These codes are part of the UK tax system. Understanding the difference between cumulative and non-cumulative tax codes can change how much money you take home monthly. https://clarkwell.co.uk/cumulative-vs-non-cumulative-tax-codes-uk/