Do Employers Have To Pay Mileage In New Zealand?

If you run a small business, there’s a good chance you’ve had this come up at some point: an employee drives to a client site, picks up stock, or uses their own car for errands - and then asks about mileage reimbursement.

It’s a fair question, and it’s also one that can quickly turn into an awkward conversation if you don’t have a clear policy. The tricky part is that “mileage” sits in the overlap between employment law, payroll, tax, and practical workplace expectations.

Below, we’ll break down how mileage reimbursement works in New Zealand, when you may need to pay it, and how to set up a simple approach that protects your business from day one.

Is Mileage Reimbursement Legally Required In New Zealand?

In most cases, there isn’t a single law that says every employer must pay mileage reimbursement in every situation. Instead, the legal answer usually depends on:

• what your employment agreement says
• what you’ve agreed to (or what has become “custom and practice” in your workplace)
• whether the employee is being required to incur work-related costs without fair compensation
• how you structure allowances and reimbursements for payroll and tax purposes

That said, just because mileage reimbursement isn’t always expressly required by a specific “mileage law” doesn’t mean you can ignore it.

In practice, if you expect or require an employee to use their personal vehicle for work purposes, it’s usually sensible to have a fair arrangement in place - whether that’s reimbursing kilometres, paying a vehicle allowance, or providing a work vehicle. What’s “required” will depend on your agreements and the circumstances, so it’s best to document it clearly.

Why This Still Matters (Even If It’s Not A “Hard Rule”)

If an employee is regularly out of pocket because they’re using their own car for your business, that can create real risk for you, including:

• employment relationship issues (disputes about fairness or good faith)
• pay issues (where costs materially affect take-home pay, especially for lower-paid staff)
• inconsistent treatment across staff (which can lead to complaints)
• tax and record-keeping problems (if you treat allowances incorrectly)

This is why it’s usually best to set expectations clearly in your Employment Contract and supporting policy documents, rather than dealing with mileage on a one-off basis each time it comes up.

When Are You Most Likely To Owe Mileage Reimbursement?

From a small business perspective, the cleanest way to think about mileage reimbursement is this:

If the travel is genuinely for work, and the employee is using their own vehicle because of your business needs, it’s usually appropriate to reimburse it (or provide an agreed alternative).

Here are common situations where mileage reimbursement is often expected and commercially sensible.

1) Travel Between Work Sites (Not Normal Commuting)

If you have staff travelling:

• from your office to a client site
• from one client site to another
• to pick up supplies, stock, or equipment
• to attend offsite meetings or training (where you’ve required it)

…then that’s typically work travel, and mileage reimbursement is often appropriate if they’re using their own vehicle.

2) You Require The Employee To Have A Car For The Role

If you advertise a role that effectively requires a car (for example, a mobile service role, sales visits, property inspections, or support work across multiple sites), you should be especially careful.

In those roles, the ability to travel is part of the service your business is delivering. If you’re shifting those operating costs onto the employee without a fair allowance or reimbursement, you can create both legal and retention problems.

3) “On Call” Or After-Hours Callouts

If someone is responding to urgent callouts or after-hours jobs, mileage reimbursement (and sometimes additional compensation) may be part of a fair setup - particularly if the travel is frequent and driven by your business needs.

This is also a good place to check your overall approach to overtime, time in lieu, and allowances so your pay practices stay consistent.

4) When You’ve Historically Paid It (Custom And Practice)

Even if your written documents are silent, if you’ve been paying mileage reimbursement as a normal practice for a long time, employees may reasonably expect it to continue - and in some cases it may be argued to have become an implied term through “custom and practice”.

If you want to change that approach, you should handle it carefully - ideally with advice - because changes to established expectations may require consultation (and, depending on the situation, agreement).

What About Commuting? Do You Have To Pay Mileage To And From Work?

For most businesses, you generally don’t pay mileage reimbursement for ordinary commuting (home to the usual workplace, and back again). That’s usually treated as the employee’s personal travel.

However, commuting can get blurry where there isn’t a “usual workplace”. For example:

• your employee works from home and travels to a client site
• your employee travels directly to different job sites each day
• your employee’s “base” location changes week to week

In these cases, whether travel is reimbursable often depends on what you’ve agreed in writing and how the role is structured. Clear wording in your Employment Contract and an expenses policy can save you a lot of back-and-forth later.

How Should You Structure Mileage Reimbursement (So It’s Clear And Tax-Smart)?

Once you decide you will pay mileage reimbursement, the next question is: how?

Most small businesses use one (or a mix) of these methods:

• per-kilometre mileage reimbursement (based on a rate)
• vehicle allowance (a fixed amount per week/pay period)
• company vehicle (and rules for private use)
• reimbursement of actual costs (less common, more admin-heavy)

Mileage Reimbursement Using A Per-Kilometre Rate

This is the most common approach when employees use their personal vehicles occasionally or moderately.

As an employer, you’ll want to decide:

• what rate you’ll pay (often aligned with what’s reasonable for vehicle running costs)
• what travel is eligible (and what isn’t)
• how employees should record kilometres (logbook, app, spreadsheet)
• what proof you require (job number, client name, date, purpose of travel)
• approval process (for example, manager sign-off)

Tax note: the tax treatment can vary depending on how reimbursements and allowances are structured and evidenced, and IRD guidance may change over time. This is general information only and isn’t tax advice - it’s a good idea to check with your accountant or the IRD about the right approach for your payroll setup.

Vehicle Allowances (Fixed Payments)

A vehicle allowance is a set amount you pay, often to employees whose roles require frequent travel.

This can be simpler administratively, but it creates a different set of issues you’ll want to manage, such as:

• what the allowance is intended to cover (fuel, wear-and-tear, insurance, registration, etc.)
• whether the allowance is paid regardless of travel (for example, during leave)
• what happens if the role changes and travel reduces

Allowances can also raise payroll and tax questions, so it’s worth setting this up properly from the start.

Company Vehicles

Providing a company vehicle can reduce arguments about mileage reimbursement - but it can increase your responsibilities around:

• vehicle policies and permitted use
• maintenance and safety
• insurance and incident reporting
• privacy considerations if you use GPS tracking

If you’re collecting location data (including via tracking apps or fleet systems), it’s smart to make sure your internal approach aligns with the Privacy Act 2020 and your broader Privacy Policy.

What Laws And Legal Risks Should Employers Keep In Mind?

Mileage reimbursement sits inside a bigger legal framework. Even where the obligation isn’t spelled out as “you must pay mileage”, the surrounding employment and safety rules still matter.

Employment Law And Good Faith

Under the Employment Relations Act 2000, employers and employees must deal with each other in good faith. If your employees are regularly paying for your business operations out of their own pocket (fuel, vehicle costs, tolls) and you refuse to reimburse them without a clear contractual basis, that can damage trust quickly.

It can also lead to disputes about what was agreed, what is fair, and what has become standard practice in your workplace.

Minimum Wage And “Out Of Pocket” Costs

Even if you’re paying the correct hourly wage, a role that requires an employee to regularly incur significant work-related costs without adequate reimbursement can create practical and legal risk - especially for lower-paid staff.

While expenses and reimbursements aren’t the same thing as wages, it’s worth checking whether your approach is effectively shifting operating costs onto employees in a way that could undermine the sustainability or fairness of their take-home pay (and, in some scenarios, raise questions about compliance with minimum employment standards).

Health And Safety: Work-Related Driving

Under the Health and Safety at Work Act 2015, you have duties to ensure (so far as reasonably practicable) the health and safety of workers while they’re at work - and that can include driving for work.

So if employees are driving as part of their role, you should think beyond just mileage reimbursement and consider:

• licence checks
• fitness to drive (fatigue, long shifts)
• vehicle safety expectations (roadworthy, WOF, maintenance)
• clear instructions about work travel
• incident reporting process

These rules are often documented in a broader Workplace Policy, supported by training and consistent enforcement.

Privacy And Tracking

Many businesses now use mileage apps, GPS check-ins, or digital timesheets to capture travel. That can be efficient - but if you’re collecting location data, travel patterns, or personal vehicle details, you should treat that as personal information and handle it accordingly.

Having a clear Privacy Policy and internal guidance reduces the risk of complaints and helps staff understand what’s being collected and why.

How To Create A Simple Mileage Reimbursement Policy (Without Overcomplicating It)

A good mileage reimbursement system doesn’t need to be long or legalistic - it just needs to be clear, consistent, and written down.

For most small businesses, the easiest approach is to create:

• a clause in your Employment Contract dealing with expenses and travel; and
• a short internal policy that explains the “how” day-to-day.

What Your Policy Should Cover

Consider including the following in your mileage reimbursement policy:

• Eligibility: who can claim mileage reimbursement (employees only, contractors, both?)
• When it applies: examples of reimbursable travel, and what isn’t reimbursable (especially commuting)
• Rate: the kilometre rate or allowance amount, and when it will be reviewed
• What costs are included: whether the rate covers fuel and wear-and-tear only, or also tolls/parking
• Record keeping: what information is required (date, purpose, start/end locations, kilometres, client/job)
• Timeframes: how often claims must be submitted (weekly/monthly) and cut-off dates
• Approvals: who signs off and what happens if a claim is incomplete
• Compliance expectations: licence requirements and minimum vehicle safety requirements

Putting this into a broader Workplace Policy suite is often the most practical approach, especially once you start scaling your team.

Don’t Forget Contractors (They’re Different)

If you use contractors, mileage reimbursement often works differently.

Contractors usually build their travel costs into their pricing, or they invoice you for travel as a separate line item. The key is to make sure it’s clearly agreed in the contract so you’re not surprised by invoices (and they’re not surprised by refusals to pay).

This is where a properly drafted Contractor Agreement can be really useful, especially if contractors are representing your brand onsite or travelling frequently as part of service delivery.

Common Mistakes We See Small Businesses Make

Here are a few issues that regularly cause disputes:

• No written agreement (everything is verbal until someone gets upset)
• Inconsistent reimbursement (one employee gets mileage reimbursement, another doesn’t, with no explanation)
• Unclear commuting rules (staff claim “home to client” while you assume it’s normal travel)
• Flat allowances with no structure (hard to manage and can create payroll/tax confusion)
• Forgetting tolls/parking (staff get reimbursed kilometres but stay out of pocket for other work travel costs)
• No process for disputes (what happens when a claim looks unreasonable?)

If your business provides services to clients and travel is part of your delivery model, it can also help to align staff travel arrangements with your external customer terms. Depending on your setup, your Service Agreement or client terms might deal with when you charge clients for travel - and your internal policy should support that approach.

Key Takeaways

• There isn’t a universal rule that employers must pay mileage reimbursement in every case in New Zealand, but it can become an obligation through your agreements, established practices, and fairness expectations.
• If you require staff to use their personal vehicle for work (client visits, errands, travel between sites), having a clear and fair reimbursement or allowance arrangement is usually the safest and most practical approach.
• Ordinary commuting (home to the usual workplace) generally isn’t reimbursable, but “no fixed workplace” roles can be a grey area - so write it down clearly.
• Set expectations early in your Employment Contract and a simple Workplace Policy so your team knows what they can claim and how.
• Think beyond kilometres: work-related driving also raises health and safety duties and (if you track travel digitally) privacy obligations under the Privacy Act 2020.
• Contractors are different - travel costs should be clearly handled in a Contractor Agreement to avoid invoice disputes later.

If you’d like help setting up a mileage reimbursement clause, an expenses policy, or a full suite of employment documents that fit how your business actually operates, you can reach us at 0800 002 184 or team@sprintlaw.co.nz for a free, no-obligations chat.