Sep 21st, 2026
Buying a Business Vehicle in NZ: What You Can Claim, How to Finance It, and What to Watch Out For
TL;DR: Buying a vehicle through your business in NZ can offer genuine tax advantages, but the rules around what you can claim depend on your business structure, how much the vehicle is used for business vs personal use, and whether FBT applies. Finance options include chattel mortgage, finance lease, and operating lease. Always confirm your tax position with an accountant before purchasing.
Table of Contents
- Can You Buy Any Vehicle Through Your Business?
- What Can You Actually Claim?
- What Is Fringe Benefit Tax (FBT) and When Does It Apply?
- Business Finance Structures: Which One Is Right for You?
- Sole Trader vs Company: Does It Matter?
- Are EVs a Better Deal for Businesses?
- How to Finance a Business Vehicle at Rostron Finance
- 10 Frequently Asked Questions
The idea of buying a vehicle through your business is appealing. The reality requires a bit more understanding before you commit. Get it right and there are genuine savings on the table. Get it wrong and Inland Revenue will have questions.
This guide covers everything: the tax rules, the finance options, the FBT implications, and how to structure the purchase to suit your business.
Can You Buy Any Vehicle Through Your Business?
Technically, yes, but whether it's financially smart depends on how the vehicle is used. IRD distinguishes between business use and private use. Only the business-use portion of vehicle costs is deductible. If you buy a family SUV through your company but use it for personal trips, FBT may apply on the personal-use portion.
What Can You Actually Claim?
- Interest on the loan: the interest component of your vehicle finance repayments is deductible for business use
- Depreciation: vehicles lose value over time, and this depreciation is a legitimate business expense
- Running costs: fuel, maintenance, registration, and WOF costs (business-use proportion only)
- GST on purchase: if your business is GST registered and the vehicle is used for business, you can claim a GST credit on the purchase price (business-use proportion)
You cannot claim the full loan repayment, only the interest portion. The principal repayment reduces a liability on your balance sheet and is not a tax deduction.
For more detail on this, read our guide to claiming on your car loan.
What Is Fringe Benefit Tax (FBT) and When Does It Apply?
FBT is a tax your business pays when it provides a vehicle to an employee (including a director/shareholder employee) and that vehicle is available for private use. "Available for private use" is broadly interpreted by IRD, and simply being able to drive the car home at night counts.
FBT is calculated on the cost price of the vehicle and applies quarterly. It's a real cost that some business owners overlook when planning a vehicle purchase.
There are exemptions and ways to structure the arrangement that reduce FBT exposure, and your accountant can advise on this.
Business Finance Structures: Which One Is Right for You?
| Structure | Own the Vehicle? | Best For |
|---|---|---|
| Chattel Mortgage | Yes (from day 1) | Businesses wanting to own the asset and claim depreciation |
| Finance Lease | Option to own at end of term | Businesses wanting lower repayments with a residual at the end |
| Operating Lease | No, you return the vehicle | Businesses that want fleet flexibility without ownership |
| Personal Loan (business use) | Yes | Sole traders or individuals who prefer simplicity |
Read our full explanation of finance leases to understand the lease vs own decision in more detail.
Sole Trader vs Company: Does It Matter?
Yes. If you're a sole trader, the vehicle is purchased in your personal name and you claim the business-use portion of expenses. If you're buying through a company, the company owns the vehicle, which changes the depreciation treatment and potentially triggers FBT.
The guide to buying a vehicle for your small business covers the key considerations across both structures.
Are EVs a Better Deal for Businesses?
Potentially. Businesses buying EVs may benefit from IRD's EV-specific kilometre rates (which differ from petrol rates) and lower running costs (no fuel expense, reduced maintenance). For businesses with high annual mileage, the operating cost savings over a 5-year finance term can be significant.
How to Finance a Business Vehicle at Rostron Finance
- Decide on the right structure: with your accountant, determine whether chattel mortgage, finance lease, or another structure suits your business.
- Use the loan calculator: model repayments on the Rostron Finance calculator.
- Apply through Rostron Finance: we compare business vehicle finance options across our lender panel, subject to lender criteria.
- Purchase the vehicle: through a dealer or private sale, new or used.
10 Frequently Asked Questions: Business Vehicle Finance NZ
1. Can I buy a sports car through my business in NZ?
You can, but IRD will scrutinise the business purpose. A sports car that's primarily used for personal driving won't attract many deductions, and FBT will apply on the personal-use component. The vehicle must have a genuine business purpose to justify the purchase through the company.
2. Can I buy a car through my business as a sole trader?
Yes. As a sole trader, you purchase the vehicle in your personal name and claim the business-use portion of running costs and loan interest. Keep a logbook to substantiate the business-use percentage, as IRD may ask for it.
3. What is the IRD EV mileage rate in NZ?
IRD publishes separate mileage rates for electric and petrol vehicles. The EV rate is lower per kilometre because electricity is cheaper than petrol, but the rates change periodically. Check the IRD website for current rates applicable to the current tax year.
4. Can I claim the full vehicle purchase price as a tax deduction?
No. In NZ, vehicles are depreciated over time, so you can't expense the full purchase price in the year of purchase. You claim annual depreciation based on the cost and IRD's applicable depreciation rate for motor vehicles.
5. How does FBT affect the cost of a company car?
FBT is calculated quarterly as a percentage of the vehicle's cost price and paid by the employer (the company). It's a real cash cost that can add thousands per year. Whether FBT makes a company car financially unattractive depends on the vehicle cost and how much private use occurs. Your accountant can model this.
6. Is there a vehicle value limit on what businesses can finance?
There is no strict IRD cap on vehicle value for business purchases, but lenders will assess the purchase against your business income and financial position. Luxury vehicle finance is available, and Rostron Finance has a specialist luxury vehicle finance option for higher-value purchases.
7. Can I use a chattel mortgage to buy a used vehicle through my business?
Yes. Chattel mortgages can be used for both new and used vehicle purchases through a business. The lender takes a registered interest in the vehicle as security, but your business has full use and ownership of it from day one.
8. What records do I need to keep for a business vehicle in NZ?
IRD recommends keeping a vehicle logbook for at least 90 consecutive days to establish your business-use percentage. Once established, that percentage can be used for the following tax year. Keep all fuel receipts, maintenance invoices, and records of business trips.
9. Can a business write off a caravan or trailer purchased for work?
If the caravan or trailer is genuinely used for business purposes (transporting tools, equipment, or materials), it may qualify as a business asset and attract depreciation deductions. The same business-use proportion rules apply. Confirm the treatment with your accountant before purchasing.
10. What's the difference between a chattel mortgage and a finance lease for a business vehicle?
With a chattel mortgage, your business owns the vehicle from day one and can claim depreciation. With a finance lease, the lender owns the vehicle during the term and you make lease payments, with the option to purchase at the end. Tax treatment differs between the two. Your accountant can advise which structure better suits your business's financial position.
This post is for general information only and does not constitute financial or tax advice. Always speak with a qualified accountant or financial adviser before making investment or tax decisions.
