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Maternity Leave Calculator


Your ultimate resource to help you plan for employee maternity leave and pay.

maternity leave calculator
  • Join date to qualify for SMP information
  • Maternity pay calculation period information
  • Notification deadline information
  • Earliest commencement date information
  • Start date if employee is marked sick information
Maternity leave planning

How does the maternity leave calculator work?

Our free maternity leave calculator is designed to assist UK employers to plan maternity leave entitlement for their employees.


To find out when an employee’s maternity leave is due to start, simply enter in the expected due date into the calculator above.

how to use the maternity leave calculator

What information does the maternity leave calculator provide?

Once you have entered the expected due date into the maternity leave calculator, you’ll be able to see:


  • The latest date at which an employee must have started their employment with you, in order to qualify for statutory maternity pay (there is no minimum required length of employment for maternity leave entitlement)
  • The maternity pay calculation period
  • The latest date at which an employee must notify you that they are pregnant
  • The earliest date at which maternity leave can commence
  • The start date for maternity leave if an employee is marked sick due to a pregnancy-related reason

Read our expert guide to maternity leave

As an employer, you’re required by law to offer your employees maternity leave. Read our essential guide to find out what's involved.

I’m really glad I could introduce edays at parkrun. The flexibility and customisation is great, as is being able to manage those more obscure requirements. The employees all really like it too and all find it so much easier having everything all in one place!

Emily Lenderyou, People & Culture Coordinator – parkrun

Maternity leave and pay questions


maternity leave calculator frequently asked questions

What is Statutory Maternity Leave?

Statutory maternity leave is a type of leave that employees are entitled to take after they have given birth. In the UK, statutory maternity leave is 52 weeks, which is broken down into Ordinary maternity leave (the first 26 weeks), and Additional maternity leave (the last 26 weeks). Not all of the 52 weeks has to be taken by an employee, but at least two weeks must to be taken after the baby is born – or four weeks if the individual works in a factory.

What's the difference between maternity leave and maternity pay?

Maternity leave is the time that an employee takes off work after their baby is born, whilst maternity pay is the amount that they are paid following the birth of their child. In the UK, Statutory Maternity Leave and Statutory Maternity Pay are two different entitlements. You can find out more about the eligibility criteria for Statutory Maternity Leave and Statutory Maternity pay set out by the government by visiting their website.

Who is entitled to receive Statutory Maternity Leave?

Employees are eligible to take Statutory Maternity Leave if they have an employment contract, and have provided their employer with the correct notice. Employees are entitled to Statutory Maternity Leave regardless of how long they have been employed by their current employer. They must provide their employer with their expected due date, and the date at which they wish to start their maternity leave, at least 15 weeks prior to the due date itself.

Who is eligible to receive Statutory Maternity Pay?

To be eligible to receive Statutory Maternity Pay, employees need to be on their employer’s payroll in the ‘qualifying week’, which is 15 weeks before the week that the baby is due. They must also have been employed for at least 26 weeks up to the qualifying week. In addition, eligible employees will need to have provided the correct notice and proof of pregnancy to their employer, and will need to be earning at least £123 a week in an 8-week period (which is known as the maternity pay calculation period as displayed in the calculator above).

What are an employee's rights whilst taking maternity leave?

An employee’s rights, such as their holiday accruals, pay rises and right to return to work, are protected when they are taking maternity leave. Employees taking maternity leave are also protected from redundancy whilst they are on leave. As of April 2024, this protection has also been extended by the UK government to include pregnant employees, under the new Protection from Redundancy (Pregnancy and Family Leave) Act 2023.

How can edays help with managing maternity leave?

edays absence management software can help your organisation to manage maternity leave with ease. By implementing custom leave types, you can create any type of leave within edays – including statutory leave such as maternity and paternity, and any other additional types of leave that your organisation has, such as birthday leave and wellbeing days.


With group calendars, maternity leave can be logged alongside all other types of leave and sickness absence, for a clear overview of your teams. Our absence reporting function also makes managing absence and leave simple, allowing you to monitor trends, integrate with payroll, and keep track of leave usage.