Mckenzie Law

Suspected Sick Leave Abuse? A Guide for NZ Employers to Handle It Legally

Ron Mckenzie

Ron Mckenzie | April 10, 2025

Sick leave is an important employee right in New Zealand, but many employers struggle when patterns of absence start raising concerns. Frequent Monday sick days, repeated short-notice absences, or suspicious timing around public holidays can create frustration and operational strain.

The challenge is knowing how to respond without breaching employment law.

Act too aggressively, and the business may face a personal grievance. Ignore the issue, and the behaviour may continue

What Counts as Sick Leave Abuse?

Not every inconvenient absence is misconduct. Employers should avoid assumptions.

Concerns usually arise when there is a clear pattern such as:

  • Repeated absences before or after weekends
  • Sick leave during declined annual leave periods
  • Social media activity inconsistent with claimed illness
  • Frequent last-minute absences
  • Ongoing absenteeism affecting operations

Patterns may justify investigation, but they do not automatically prove wrongdoing.

Can Employers Ask for Proof?

Yes, in many situations.

Medical certificates and evidence may be requested depending on timing and circumstances. Employers should follow lawful process and apply policies consistently across staff.

What Employers Should Do

1. Review Attendance Records

Focus on facts, dates, frequency, and impact on the business.

2. Check Internal Policies

Ensure leave policies are current, clear, and consistently applied.

3. Meet With the Employee

Raise concerns privately and respectfully. Give the employee a chance to explain.

4. Investigate Fairly

Do not predetermine guilt. Consider all explanations and relevant evidence.

5. Take Proportionate Action

The right response may range from support measures to formal warnings, depending on the facts.

Common Employer Mistakes

Businesses often create legal risk by:

  • Accusing staff without evidence
  • Applying rules inconsistently
  • Publicly discussing absences
  • Ignoring medical information
  • Disciplining without fair process

Process matters as much as the outcome.

Managing Genuine Absenteeism

Sometimes the issue is not misconduct but health, burnout, or personal challenges. In those cases, employers may need a performance, wellbeing, or support-based response rather than discipline.

Need Advice as an Employer?

If absenteeism is affecting your business, the safest path is early legal guidance. A well-managed process can protect operations while reducing the risk of claims.

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