Sick Leave Entitlements For Employers In New Zealand

Managing sick leave can feel straightforward until you’re actually running a team. One person is off with the flu, another needs time for a medical appointment, and someone else calls in sick the day after a public holiday - and suddenly you’re juggling staffing, payroll, and legal compliance all at once.

For small business owners, the key is to understand your obligations early (and set expectations clearly in writing), so you can support your staff and protect your business from day one.

This guide breaks down sick leave entitlements in New Zealand that employers need to know, including who qualifies, how much leave applies, evidence rules, paying employees correctly, and what to document in your employment agreements and policies.

What Are Sick Leave Entitlements In New Zealand?

In New Zealand, sick leave is a minimum employment entitlement under the Holidays Act 2003. It’s paid leave that eligible employees can take when they’re:

• sick or injured; or
• need to care for a dependent person who is sick or injured (for example, their child or someone who depends on them for care).

From an employer’s perspective, the main things to remember are:

• Sick leave is a minimum legal entitlement once eligibility is met (you can’t contract out of it).
• You must apply sick leave rules consistently and fairly (including when you suspect misuse).
• Your Employment Contract should clearly explain how sick leave works in your business, including notification and evidence requirements.

While there are practical and “people” considerations, sick leave management is also a compliance issue. If you get it wrong, you can face disputes, wage arrears claims, or personal grievances - so it’s worth setting up good systems early.

Who Is Eligible For Sick Leave (And When Does It Start)?

Not every new hire is entitled to paid sick leave immediately. Under the Holidays Act, an employee generally becomes entitled to sick leave once they have worked for you for:

• 6 months continuously; or
• 6 months if they meet one of the Act’s “average” tests for employees with less regular work patterns (for example, where they’ve worked for you across a 6-month period and meet the required work frequency/hours thresholds).

In a small business, the most common trap is assuming sick leave applies “from day one” because it feels like the fair thing to do. You can offer sick leave in advance (many employers do), but you should do it deliberately, and document it properly so there’s no confusion about whether it’s:

• an advance on future entitlement;
• discretionary paid leave; or
• an additional benefit on top of minimum entitlement.

If you want to offer more generous terms (which can be a great retention tool), make sure it’s clearly written into your employment documents - otherwise, you may accidentally create an ongoing expectation or inconsistency between staff.

If you’re also working with casuals or genuinely intermittent staff, eligibility can get tricky, so it can help to check how their arrangements are structured (and whether they are actually “casual” in a legal sense). Your approach should match the realities of the work pattern, not just the label.

How Much Sick Leave Do Employees Get?

Once an employee becomes entitled, the minimum sick leave entitlement is:

• 10 days of paid sick leave per year.

This entitlement is ongoing and “renews” every 12 months after the employee becomes entitled (based on their sick leave anniversary date).

Can Sick Leave Accumulate From Year To Year?

Yes. Unused sick leave can carry over to the next year, but there is a cap.

Under the Holidays Act rules, an employee can accumulate up to a maximum of 20 days of sick leave at any one time (for minimum entitlements). That means if an employee doesn’t use their sick leave for a period, they can build up a balance - but once they hit the cap, further “new” entitlement won’t increase their total above 20 days.

As an employer, you’ll want your payroll and leave system to track this properly. Incorrect balances can create real problems later, especially during disputes or if an employee takes extended time off and questions their available entitlements.

What If You Provide More Than The Minimum?

Some businesses choose to offer extra sick leave as a benefit. If you do, be clear about:

• how many days are provided;
• whether the extra days accumulate;
• whether there is a cap; and
• whether any “extra” sick leave is treated differently from the statutory minimum (for example, evidence requirements or approval process).

This is where a well-drafted Staff Handbook can be very helpful - it keeps your leave rules in one place, and you can update the policy as your business grows.

What Can Sick Leave Be Used For (Including Mental Health)?

Sick leave isn’t just for colds and injuries. It can cover a wide range of physical and mental health situations, including stress, burnout, anxiety, depression, and medical appointments where the employee is unfit for work.

It can also be used when an employee needs to care for someone who depends on them and is sick or injured.

For employers, the practical takeaway is that you should focus on the entitlement criteria (unfit for work / caring responsibilities) rather than trying to “rank” illnesses. If you start treating one type of illness as more legitimate than another, you can quickly find yourself in risky territory from a discrimination or unfair treatment perspective.

Do Employees Have To Tell You What’s Wrong With Them?

Usually, no - not in detail.

You can require that employees notify you they’re sick and unable to work, and you can request evidence in certain circumstances (more on that below). But you should be careful about asking for detailed health information unless it’s genuinely necessary.

Health information is sensitive personal information. If you collect or store medical certificates or other health details, you should make sure your workplace approach aligns with privacy expectations, including secure storage and limited access. In some workplaces, a Privacy Policy and internal privacy practices are useful even if you’re not a “big business” - because handling sensitive employee information is still a serious responsibility.

Can You Ask For A Medical Certificate (And Who Pays)?

This is one of the most common sick leave questions we see from employers, because it sits right at the intersection of running a business and respecting employees’ rights.

When Can You Request Evidence?

Generally, you can ask an employee for proof of sickness or injury (for example, a medical certificate) if:

• the employee has been sick for 3 or more consecutive calendar days; or
• you ask for proof within the first 3 consecutive days - but if you do this, you’ll usually need to cover the reasonable cost of obtaining that proof.

“Consecutive calendar days” includes days that aren’t otherwise working days. For example, if an employee is sick on Friday and Monday, that may count as four consecutive calendar days (Friday, Saturday, Sunday, Monday) even though they weren’t rostered on over the weekend.

Evidence requests should be handled consistently. If you only ask some employees for proof (and not others), you increase the risk of disputes and allegations of unfair treatment.

What Counts As Evidence?

A medical certificate from a registered health practitioner is the common option. In some situations, other forms of evidence may be acceptable if they reasonably show the employee was unfit for work (and what’s “reasonable” will depend on the circumstances, including accessibility and the nature of the absence).

From a risk-management perspective, it’s smart to set out in writing what you’ll accept as evidence and when you’ll require it - that way, your managers aren’t making it up on the spot in a stressful moment.

How Do You Pay Sick Leave Correctly?

Paying sick leave sounds simple - “pay them as normal” - but payroll errors are one of the fastest ways for sick leave issues to escalate into formal complaints.

When an eligible employee takes sick leave, you generally pay them what they would have earned if they had worked that day.

What that means in practice depends on how the employee works:

• Fixed hours: usually straightforward - pay their normal hours at their normal rate.
• Variable hours or shifts: you may need to use a “relevant daily pay” or “average daily pay” approach under the Holidays Act framework, depending on what applies.

If you have staff on variable rosters, it’s worth getting your payroll settings checked. Small errors repeated over time can turn into significant arrears (and cause a lot of stress if an employee raises it later).

Does Sick Leave Include Overtime Or Allowances?

Sometimes, yes - depending on whether the overtime or allowance would have been paid if the employee had worked that day.

For example, if an employee is rostered on a shift that would normally attract a regular allowance, that allowance may form part of what they would have earned. This can get complex quickly, so if you’re unsure, it’s worth getting advice based on your pay structure and roster patterns.

Managing Sick Leave In Practice: Notifications, Patterns, And “Suspected Misuse”

Most sick leave is genuine. But even when it’s legitimate, it can still create operational pressure - especially for smaller teams.

The best approach is to set expectations clearly and early, then handle issues calmly and consistently when they arise.

Set Clear Notification Rules

Your employment documents should spell out:

• when the employee must notify you (for example, “as soon as practicable and before their shift starts”);
• how they must notify you (call, text, email, roster app);
• who they must notify (manager, owner, duty supervisor); and
• what information you need (for example, “I’m unwell and can’t work today” and expected return date if known).

These rules should be included in your Employment Contract and reinforced in your policies. Clear rules make it easier to act quickly to cover shifts and reduce misunderstandings.

What If You Suspect An Employee Isn’t Really Sick?

This is where many employers get into trouble - not because they’re wrong to be concerned, but because they respond in a way that’s inconsistent, overly accusatory, or not evidence-based.

If you suspect misuse, practical steps can include:

• requesting evidence where you’re entitled to do so (and paying for it if you’re requesting it early);
• checking whether there’s an underlying health issue or workplace issue contributing to absences;
• having a calm, documented conversation about attendance expectations; and
• following a fair process if you move into performance management or disciplinary action.

A common mistake is to jump straight to disciplinary action without first confirming whether the employee is entitled to sick leave, whether evidence can be requested, and whether there are any medical or personal factors at play.

Also, be careful about “pattern-based assumptions” (for example, sick leave always on Mondays). Patterns can be relevant, but they aren’t proof on their own - and responding too aggressively can create legal risk.

What If An Employee Has No Sick Leave Left?

If an employee has used up their sick leave entitlement, you’re not automatically required to keep paying them for time off sick (unless you’ve agreed to provide additional paid leave).

In practice, employers may consider options like:

• annual leave (if the employee requests it and you agree);
• unpaid leave (by agreement);
• alternative duties or adjusted hours (where appropriate); or
• a medical plan for return to work (for longer absences).

This is also a good reminder to ensure your contracts and leave policies clearly outline how different leave types interact and what happens when entitlements are exhausted.

Keep Good Records (Without Over-Collecting Information)

You should keep accurate records of:

• sick leave accrued and taken;
• dates of absence;
• payments made; and
• evidence requested/received (where applicable).

At the same time, avoid collecting more health detail than you actually need. If you store certificates or medical letters, restrict access and store them securely.

Key Takeaways

• Sick leave entitlements in New Zealand are set by the Holidays Act 2003, and eligible employees receive a minimum of 10 days per year.
• Employees generally become entitled to paid sick leave after 6 months of employment (either continuous or by meeting one of the Holidays Act “average” work-pattern tests).
• Unused sick leave can carry over, but minimum sick leave balances are generally capped at 20 days.
• Sick leave can be used for physical or mental illness and for caring for a dependent person who is sick or injured.
• You can usually request a medical certificate after 3 consecutive calendar days sick, and if you request evidence earlier you’ll generally need to pay the reasonable cost.
• Clear notification rules and consistent processes (supported by well-drafted contracts and policies) help you manage sick leave fairly and reduce disputes.
• Accurate leave and payroll records are essential - but be careful not to over-collect sensitive health information.

If you’d like help putting the right leave clauses and workplace policies in place (or you’re dealing with a tricky sick leave situation), you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.