An employer must deduct 25% from a casual employee’s wages as PAYE tax. This will apply to employees who:
Exemptions to this rule are as follows:
If an employee works regularly for less than 22 hours per week and provides the employer with a written undertaking that they do not work for any other employer then they will be regarded as being in standard employment and tax must be deducted according to the standard weekly or monthly tax tables.
An employee who is in standard employment, in other words, he or she works for one employer for at least 22 hours per week.