Overtime can be a great way to hit deadlines, keep customers happy, and grow your business. But it can also become a fast track to payroll disputes, burnout, and employment law headaches if you don’t set expectations clearly from day one.
This guide is updated to reflect the way overtime is being handled in practice right now (including increased focus on accurate record-keeping and clear employment terms), and it’ll walk you through what overtime means in New Zealand, when you need to pay it, and how to manage it fairly and legally.
Whether you’re an employer building a sustainable workplace, or an employee trying to understand your rights, the key theme is the same: get the agreement right, keep good records, and don’t rely on “we’ve always done it this way”.
What Counts As “Overtime” In New Zealand?
In New Zealand, there isn’t one single legal definition of “overtime” that automatically applies to every workplace. Instead, overtime is usually a contractual concept-meaning it depends on what the employment agreement says about hours of work and pay.
Most commonly, overtime means:
- Hours worked beyond an employee’s agreed hours (for example, anything over 40 hours per week), and/or
- Hours worked outside an agreed span (for example, work done after 5pm or on weekends), depending on how the agreement is written.
That’s why it’s so important that your employment paperwork is clear. A well-drafted Employment Contract will usually spell out:
- the employee’s “ordinary” hours and days of work
- whether additional hours may be required
- how overtime is approved and paid (or compensated)
- any penalties, allowances, or alternative arrangements (like time off in lieu)
If the contract is vague, you’re much more likely to end up with mismatched expectations-particularly when workloads spike.
Is Overtime Always Paid At A Higher Rate?
Not necessarily. In New Zealand, there’s no universal legal rule that overtime must be paid at “time and a half” (unlike some other countries). Higher overtime rates usually exist because:
- they’re written into the employment agreement, or
- they come from an applicable collective agreement, or
- they’re part of workplace policy and custom that has effectively become an expected term over time.
Even if you don’t have to pay a higher rate, you still need to make sure the employee is properly paid for hours worked and that you’re meeting minimum legal standards.
Do You Have To Pay Employees For Overtime?
In many cases, yes-employees must be paid for all hours they actually work. The trickier question is whether those hours are paid in addition to salary, or whether they’re considered already included in the salary package.
Here are the main situations we see.
1) Hourly Paid Employees
If someone is paid hourly, overtime is usually straightforward: if they work additional hours, those hours are paid at the agreed hourly rate (or an agreed overtime rate, if the contract says so).
As an employer, it’s still smart to set rules around:
- who can approve overtime
- when it can be worked
- how it’s recorded (timesheets, clock-in systems, job management apps)
Without a process, you can quickly end up paying for unapproved work-or arguing about whether the work was “required”.
2) Salaried Employees (When Overtime Is “Included”)
For salaried employees, the employment agreement may say their salary compensates them for the hours required to do the job, including “reasonable” additional hours.
This can be lawful, but it needs to be handled carefully. The key risks are:
- Minimum wage compliance: if the salary is spread across the actual hours worked, it must still come out to at least minimum wage.
- Unclear expectations: “reasonable additional hours” is a common phrase, but it can become a problem if overtime becomes constant rather than occasional.
- Wellbeing and safety: sustained long hours can become a health and safety risk (more on this below).
So while salary can be structured to include overtime, it should still be realistic and fair-especially for roles where long hours are likely.
3) Salaried Employees (When Overtime Is Paid On Top)
Some employment agreements provide a salary for ordinary hours and then pay overtime at an hourly rate beyond that. This is common in roles where:
- workloads fluctuate significantly
- shift coverage is required
- there are strict deadlines or call-outs
It’s also a good approach when you want transparency and fewer disputes about what’s “reasonable”.
What If An Employee Works Overtime Without Approval?
This depends on the circumstances, but a practical rule of thumb is: if the employer knew or should have known the work was being done, and the work was effectively allowed to happen, the employee may still need to be paid.
That’s why a clear overtime policy and proper management matters. If you don’t want overtime happening, you need to actively manage workloads and enforce your approval process-rather than relying on an assumption that “they chose to do it”.
What Laws Apply When Managing Overtime?
Overtime isn’t governed by one “overtime Act”. Instead, it sits across several key employment and workplace laws. Here are the ones that commonly matter in overtime scenarios.
Employment Relations Act 2000
This Act underpins the employment relationship, including obligations of good faith. In practice, that means employers and employees should be upfront and communicative about expectations, including hours of work.
If overtime becomes a constant requirement, it’s a good faith issue to address it openly-rather than leaving the employee guessing, or punishing them for raising concerns.
Holidays Act 2003 (Leave, Public Holidays, And “Extra” Pay)
Overtime can affect leave calculations and pay in more indirect ways. For example:
- if an employee regularly works extra hours, it may affect what “normal” looks like for holiday pay calculations
- work on public holidays can trigger alternative holidays and specific pay requirements
If your payroll practices are inconsistent, overtime is one of the things that can cause errors over time.
Minimum Wage Act 1983
Even where a salary is intended to “cover” extra hours, you still need to check that the employee’s average hourly earnings don’t drop below minimum wage when you divide pay by actual hours worked.
This is especially important for junior staff, entry-level managers, and fast-growing startups where people are wearing multiple hats.
Wages Protection Act 1983
This Act matters when businesses try to make deductions from wages (for example, for “overpaid overtime” or unauthorised overtime). Deductions are not something you can do casually-there are rules around authorisation and reasonableness.
If you think you’ve overpaid wages or overtime, it’s usually better to get advice before attempting to recover it.
Health And Safety At Work Act 2015
Long hours can become a health and safety risk, particularly in safety-sensitive environments (driving, machinery, construction, healthcare, security, manufacturing), but also in office-based roles where fatigue and stress build up.
As an employer, you have a duty to take reasonably practicable steps to keep people safe at work. That can include managing fatigue risk by:
- monitoring excessive hours
- encouraging real breaks
- resourcing work appropriately
- avoiding “always on” expectations
Break compliance also matters here. If you’re unsure what employees are entitled to during long shifts, it helps to read up on work breaks and build that into rostering and workload planning.
Can You Offer Time Off In Lieu Instead Of Overtime Pay?
Time off in lieu (often called TOIL) can be a great solution when cashflow is tight or when employees value flexibility more than extra pay.
But it needs to be handled properly, because “we’ll give you a day off later” can quickly turn into an argument if the details aren’t clear.
At a minimum, you want agreement on:
- when TOIL applies (e.g. only for approved overtime, or only after a certain number of hours)
- the conversion rate (for example, 1 hour overtime = 1 hour TOIL, or a higher rate for weekends/public holidays)
- how and when it can be taken
- whether it expires after a certain period
- what happens if the employee leaves before using it
If you use TOIL, make sure the arrangement is clearly written into the agreement or policy. This is one of those areas where vague promises cause real disputes.
For a deeper breakdown of common approaches, Time Off In Lieu is a helpful reference point when you’re deciding what to implement in your business.
A Quick Warning About “Banking” Too Much Time
If employees build up a large TOIL balance, it can become a liability for your business (similar to annual leave owing). It also becomes harder to schedule time off later-especially if multiple team members are owed time at the same time.
A practical approach is to review TOIL balances regularly and set expectations that it should be taken within a reasonable window.
How Do You Set Overtime Rules That Actually Work?
Overtime issues usually aren’t caused by one late night. They build up when expectations, workload, and documentation don’t line up.
Here’s what a sensible overtime setup often includes.
1) Put It In Writing (And Keep It Consistent)
Your employment agreement should clearly cover ordinary hours, overtime expectations, and pay/TOIL rules. If you’re relying on a policy, make sure it aligns with the contract and is consistently enforced across the team.
If you’re hiring, updating contracts, or formalising processes, it’s worth having your Employment Contract drafted or reviewed so your overtime clause matches how the business actually runs.
2) Create A Simple Overtime Approval Process
This can be as lightweight as:
- a manager approving overtime in writing (text/email/roster system)
- a requirement that overtime must be requested before it’s worked (except emergencies)
- clear rules on who can approve it
The goal isn’t bureaucracy-it’s preventing misunderstandings.
3) Track Hours Properly
If overtime is regularly happening, you should have a reliable system for recording hours worked. This matters for payroll accuracy, minimum wage compliance, and leave calculations.
Even for salaried employees, tracking hours can help you spot patterns (like chronic overwork) early.
4) Manage Workloads (Not Just Timesheets)
If your business model relies on constant overtime, it’s worth stepping back and asking:
- Do we need more staff or different rostering?
- Are deadlines realistic for the resources we have?
- Are we depending on one person’s “hero effort” to keep things running?
Overtime can be a tool. It shouldn’t be a permanent staffing strategy.
5) Be Careful With Contractors And “Casual” Labels
Sometimes businesses try to avoid overtime complexity by engaging people as contractors, or calling someone “casual” when they actually work regular hours.
This is risky. Misclassification can lead to disputes and unexpected liabilities (including leave entitlements and backpay). If you’re engaging non-employees, you’ll want a properly drafted Contractor Agreement and you should be confident the relationship is genuinely contractor-based, not employment in disguise.
If you’re unsure where the line is, getting advice early can save you a lot of cost later.
Common Overtime Disputes (And How To Avoid Them)
Overtime disputes often feel personal, but they usually come down to the same few practical issues. Here’s what we commonly see, and how you can reduce the risk.
“My Salary Covers It” vs “That’s Not What I Agreed To”
If the contract doesn’t clearly explain overtime expectations, employees may believe overtime is optional or exceptional-while employers may believe it’s built into the role.
How to avoid it: use clear drafting (including whether overtime is expected, how often, and what’s “reasonable”) and revisit expectations in performance and workload discussions.
Unapproved Overtime That Still Gets Worked
Employees might work extra hours to keep up, respond to customers, or meet deadlines-then expect to be paid. Employers might refuse because it wasn’t approved.
How to avoid it: enforce the approval process, but also monitor workloads so people aren’t silently “forced” into overtime to complete their duties.
Overtime And Break Entitlements
Long shifts without proper breaks can raise both compliance and safety issues, and they can also be a red flag in disputes (for example, if an employee argues they were overworked or treated unfairly).
How to avoid it: build break entitlements into rosters, encourage staff to actually take breaks, and make sure managers understand the rules around work breaks.
TOIL Promises That Don’t Get Honoured
TOIL is a common “handshake” arrangement that later becomes contentious-especially if the employee leaves and claims they’re owed paid time.
How to avoid it: document it, track it like a leave balance, and be clear about what happens on termination.
Termination And Payments Owed
If an employee leaves (or is terminated), any outstanding wages need to be handled correctly, including overtime that has been worked and not yet paid, and any agreed entitlements that need to be paid out.
Depending on the situation, employers may also consider arrangements like payment in lieu of notice, but it’s important that final pay is calculated carefully and in line with the agreement and legal obligations.
Key Takeaways
- Overtime in New Zealand is usually determined by what the employment agreement says, so clear drafting is essential.
- There’s no universal rule that overtime must be paid at a higher rate, but employees still generally need to be paid for hours worked.
- If a salary is intended to cover extra hours, you still need to ensure minimum wage obligations are met based on actual hours worked.
- Time off in lieu can work well, but it should be agreed in writing with clear rules for accrual, use, tracking, and what happens if someone leaves.
- Overtime isn’t just a payroll issue-fatigue and excessive hours can create health and safety risks, so workload management matters.
- Most overtime disputes come from unclear expectations, poor record-keeping, or inconsistent enforcement, all of which are fixable with the right systems.
If you’d like help putting overtime arrangements in place, updating your employment agreements, or resolving an overtime dispute, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.
