The personal tax allowance is the amount of income an individual is allowed to earn each tax year before they start paying income tax. For the tax year 2023/24, the standard personal allowance in the UK is £12,570. If an individual earns less than this amount, they usually wont have to pay any income tax. However, if an individual earns above the threshold, their personal allowance is reduced by £1 for every £2 they earn above it, until it reaches £0. The personal allowance may be bigger if an individual claims Marriage Allowance or Blind Person’s Allowance, or smaller if they are a high earner or owe tax from a previous tax year. The personal allowance is applied differently depending on the type of income an individual receives. For example, if an individual is self-employed, they will take their personal allowance off their profit before working out how much income tax to pay. If an individual is a salaried employee, their employer will apply their personal allowance to their wages when working out how much income tax to deduct from their wages.