Q&A: Can an employee who falls sick during parental leave cancel that leave and instead be treated as on sick leave?
Published on: 23/07/2026
Issues Covered:
Article Authors The main content of this article was provided by the following authors.
Madison Bowyer Associate in the Employment Law Group of Arthur Cox NI

Stay ahead of the curve with our exclusive Q&A series, brought to you by leading law firm, Arthur Cox, LLP, designed to answer your most pressing legal questions. These expert insights provide clear guidance to ensure your HR practices remain compliant and protect your organisation.  

This month's question:

Can an employee who falls sick during parental leave cancel that leave and instead be treated as on sick leave?

Under the Maternity and Parental Leave etc. Regulations (Northern Ireland) 1999 (“NI-MAPLE”), employees who wish to take parental leave must provide notice of their intention to do so, including the dates on which the leave will begin and end.  Employees are also required to give at least 21 days’ notice before the leave starts. 

The legislation further provides that parental leave must generally be taken in blocks of at least one week (unless the child is disabled).

While the NI-MAPLE legislation sets out circumstances in which an employer may postpone a period of parental leave, there is no corresponding provisions allowing an employee to postpone or amend leave once notice has been given. 

In light of the statutory notice requirements for taking parental leave, the requirement that leave be taken in week-long blocks and the fact that the legislation only expressly permits employers, and not employees, to postpone leave, it appears that an employee does not have a statutory right to convert a period of parental leave into sick leave if they become unwell during that period.

Accordingly, unless the employer agrees otherwise, or there is a contractual provision permitting the leave to be varied, an employee who falls ill during parental leave is unlikely to be entitled to end the parental leave early and be treated as on sick leave instead.

This article was provided by Madison Bowyer, an Associate in the Employment Law Group at Arthur Cox NI. 

T:+44 28 9026 5886 
E: Madison.bowyer@arthurcox.com 
https://www.arthurcox.com/ 

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Disclaimer The information in this article is provided as part of Legal Island's Employment Law Hub. We regret we are not able to respond to requests for specific legal or HR queries and recommend that professional advice is obtained before relying on information supplied anywhere within this article. This article is correct at 23/07/2026