How to Work Out Maternity Pay
SMP is paid for up to 39 weeks. It consists of:
- First 6 weeks: Paid at 90% of the employee’s average weekly earnings (AWE) before tax.
- Next 33 weeks: Paid at either the SMP rate (£172.48 per week as of 2024) or 90% of their AWE (whichever is lower).
To calculate maternity pay:
- Identify the qualifying week: This is the 15th week before the baby is due. You will use the employee’s earnings over an 8-week period ending with the last payday before this week.
- Calculate average weekly earnings (AWE): Total the earnings during the 8-week period and divide by 8.
- Apply the appropriate rates: Pay 90% of the AWE for the first 6 weeks and either the SMP rate or 90% of the AWE (whichever is lower) for the remaining 33 weeks.
Maternity Pay After Tax
Maternity pay is subject to tax and National Insurance contributions, just like normal earnings. If you want to estimate the amount an employee will take home, you can use a maternity pay after tax calculator, which will deduct tax, National Insurance, and any other deductions from the gross SMP.