Small Business Tax
Deductions NZ — What You Can Claim
in 2026
📅 Updated April 2026
⏱ 12 min read
📍 New Zealand
Most NZ small business owners miss at least 3–4 legitimate deductions every year. This guide covers every expense category you can claim — so you only pay the tax you actually owe.
20+Deductible expense categories covered
$0Cost to check what you're missing
IRDCompliant advice for 2026
IRD-Compliant Advice · Auckland Based
One of the biggest mistakes NZ small business owners make is not claiming all the expenses they are entitled to. Every year thousands of Kiwi business owner pay more tax than they need to, simply because they didn't know something was deductible. This guide covers every major small business tax deduction NZ category for 2026 — vehicles, home office, equipment, travel, marketing and more with real examples. Check the IRD business expense guide for the technical rules, or talk to our Auckland team to make sure you're not leaving money on the table.
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The Golden Rule — What Makes an Expense Deductible?
IRD's core rule: the expense must be incurred to earn income. Keep receipts for everything.
Before we get into the specific categories, here's the golden rule that applies to every single deduction on your NZ tax return. IRD says an expense is deductible if it was incurred in the course of earning income. It Means if you spent your money to earn money then you can usually claim it.
But there are three conditions that have to be met. The expense must be real — you actually paid it. It must be related to your business — not a personal expense. And it must not be capital in nature — meaning it's not an asset that lasts more than a year (those get depreciated instead).
The tricky part is mixed-use expenses — things like a car you use for both work and personal trips, or a phone you use for business and personal calls. IRD requires you to split those expenses based on actual business use. Most accountants recommend keeping a logbook for vehicles and checking your phone bills quarterly.
💡 Important: You don't need receipts under $50 for most expenses — but you still need to be able to prove the expense was real. IRD recommends keeping bank statements, invoices and receipts for at least 7 years. Digital records are perfectly fine.
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The 20 Main Deductible Expense Categories
Here are the most common tax deductible expenses NZ small business owners can claim. Each category has rules and limits — read the notes carefully:
🚗
Vehicle & Motor Expenses
Petrol, insurance, registration, repairs and WOF for vehicles used in the business. Must be split between business and personal use. Keep a logbook for 90 days to establish your business use percentage.
⚠️ Apportionment required
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Home Office Expenses
Rent or mortgage interest, rates, insurance, power and internet — for the portion of your home used exclusively for business. Calculate as a percentage of total floor area. IRD has a standard rate option too.
⚠️ Percentage of home only
💻
Equipment & Technology
Computers, printers, phones, tablets and other business equipment. Items under $1,000 can be claimed in full immediately. Items over $1,000 are depreciated over their useful life.
✓ Fully deductible (or depreciated)
📱
Phone & Internet
Business portion of your mobile phone plan, landline, and internet connection. If you use your personal phone for business, you can claim the business-use percentage of the monthly cost.
⚠️ Business % only
📢
Marketing & Advertising
Google Ads, Facebook Ads, TikTok Ads, website costs, SEO, flyers, business cards, signage, sponsorships and any promotional materials. All fully deductible as business expenses.
✓ Fully deductible
🧑💼
Accounting & Professional Fees
Your accountant fees, bookkeeper fees, tax return preparation, legal advice for business matters and professional consulting fees. All 100% deductible. This includes what you pay Elite Taxation!
✓ Fully deductible
👥
Staff Wages & Salaries
Wages, salaries, bonuses and any other employee remuneration. KiwiSaver employer contributions are also deductible. Contractor payments where you've received an invoice are also claimable.
✓ Fully deductible
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Bank Charges & Interest
Business bank account fees, merchant fees, credit card fees, and interest on business loans. Personal credit card interest is not deductible — only interest on money borrowed for business purposes.
✓ Business portion deductible
🛡️
Insurance
Public liability insurance, business interruption insurance, professional indemnity, key person insurance and business assets insurance. All deductible. Life insurance and personal income protection are generally not.
✓ Business insurance deductible
✈️
Travel & Accommodation
Flights, hotels, taxis and transport costs for genuine business travel. Must be business purpose — not personal holidays. Mixed trips need to be split. Meals during travel are only 50% deductible.
⚠️ Business purpose required
🍽️
Meals & Entertainment
Client lunches, team meals and business entertainment — but only 50% of the cost is deductible. Taking a client for dinner? Claim half. Taking yourself for lunch? Not deductible at all. Keep the receipt and note who you were with.
⚠️ 50% deductible only
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Training & Education
Courses, workshops, webinars, books and subscriptions to industry publications — as long as they're directly related to your current business skills. A plumber doing a plumbing course — deductible. Same plumber doing a cooking class — not deductible.
✓ If related to current work
☁️
Software & Subscriptions
Xero, MYOB, Microsoft 365, Canva, Slack, Dropbox, Shopify, accounting software and any other software subscriptions you use in the business. All fully deductible as regular business operating expenses.
✓ Fully deductible
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Rent & Office Costs
Commercial rent, power, cleaning, maintenance, stationery and office supplies. If you rent a dedicated office or workshop, all associated costs are deductible. No apportionment needed for dedicated commercial premises.
✓ Fully deductible
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Stock & Materials
Cost of goods sold — raw materials, stock purchased for resale and direct manufacturing costs. This is usually your biggest deduction if you sell physical products. Unsold stock at year end is treated as inventory, not an expense.
✓ Fully deductible
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Repairs & Maintenance
Repairs to business equipment, vehicles and premises that restore them to their original condition. Improvements that make something better than it was are capital expenditure — not deductible as a running expense.
✓ Repairs deductible
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Postage & Courier
NZ Post, CourierPost, DHL and any delivery costs for sending business goods or documents. All fully deductible. If you run an online store this can add up to a significant annual deduction.
✓ Fully deductible
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Rates & Council Fees
If your business owns or leases commercial property, council rates are fully deductible. For home-based businesses, you can claim the business proportion of your residential rates.
⚠️ Home business = % only
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Industry Memberships & Associations
Annual subscriptions to trade associations, professional bodies, chambers of commerce and industry groups relevant to your business. Fully deductible. Personal club memberships with a business development argument are borderline.
✓ Fully deductible
🎁
Business Gifts
Gifts to clients and suppliers — but only 50% is deductible and there are FBT considerations if you're giving gifts to employees. Keep receipts and note who received the gift and why.
⚠️ 50% deductible
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Vehicle Expenses — The Full Breakdown
Vehicle deductions are one of the most claimed — and most audited — expense categories by IRD
Vehicle expenses are one of the most common deductions for NZ small businesses — and also one of the most scrutinised by IRD. There are two methods you can use to claim vehicle costs, and which one you choose can make a significant difference to your deduction.
Method 1 — Actual Cost Method
You claim the actual costs you incurred — petrol, insurance, WOF, registration, repairs, and a portion of the purchase price through depreciation. Then you apply your business-use percentage to get the deductible amount. This requires keeping a 90-day logbook every 3 years to establish your percentage.
Method 2 — IRD Kilometre Rate
You use the IRD's published rate per kilometre for business travel. For 2025–26 the rate is $1.04 per km for up to 14,000 km and $0.28 per km after that. This is simpler but usually gives a smaller deduction for high-use vehicles. You do need to keep a record of business kilometres.
Vehicle Expense
Actual Method
Kilometre Method
Notes
Petrol / fuel
✓ Yes
✓ Included
Business % only for actual method
Insurance
✓ Yes
✓ Included
Business % only
WOF & registration
✓ Yes
✓ Included
Business % only
Repairs & servicing
✓ Yes
✓ Included
Business % only
Vehicle depreciation
✓ Yes
✗ Not separately
Included in km rate
Tolls & parking (business)
✓ Yes
✓ Yes — extra
Parking is claimable on top of km rate
Home to work commute
✗ No
✗ No
Never deductible under either method
⚠️ Logbook required: IRD requires you to keep a vehicle logbook for a continuous 90-day period at least once every 3 years. The logbook must record every trip — date, destination, purpose and kilometres. Without a logbook, IRD may disallow your vehicle deductions entirely on audit.
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Home Office Deductions — Exactly What You Can Claim
If you run your business from home — or even just do admin work from home — you can claim a portion of your home expenses as a home office tax deduction NZ. This applies to sole traders and companies alike.
The key is that the space must be used predominantly for business. A dedicated home office you use only for work is fully claimable at its floor area percentage. A spare bedroom you occasionally use for business is a much weaker claim and IRD is more likely to question it.
🏠 Home Office — Real Calculation Example
Sarah's Home Office Setup
Sarah is a freelance graphic designer. Her house is 160sqm total. Her dedicated home office is 16sqm — exactly 10% of the total floor area. Her annual home costs are: rent $28,800 · power $2,400 · internet $1,200 · rates $2,000 · insurance $1,800. Total: $36,200 × 10% = $3,620 deductible per year.
✓ Fully claimable at 10% apportionment
Mark's Spare Bedroom "Office"
Mark uses his spare bedroom as both a guest room and occasional workspace. Because it's not used exclusively for business, IRD is likely to reduce or disallow a home office claim here. He'd need to show the room is genuinely dedicated to business use most of the time.
⚠️ Risky — mixed use room may be questioned by IRD
IRD Standard Cost Option
IRD also offers a simplified "standard cost" method — a flat rate of $50 per week for home office expenses, no calculation needed. This is simpler but usually gives a smaller deduction than the actual cost method. Good for businesses with small home offices or low home costs.
✓ Simple option — $50/week with no receipts needed
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Quick Reference — Deductible or Not?
Here's a fast-reference table for the expenses NZ business owners ask about most often. Use this when you're not sure if something you've paid for is claimable:
Expense
Deductible?
Notes
Accounting fees
✓ Yes — 100%
All accounting and tax preparation costs
Business meals with clients
⚠️ 50% only
Keep receipt + note who attended and why
Business cards and stationery
✓ Yes — 100%
Office supplies and printed materials
Coffee while working from café
⚠️ 50% only
Treated as entertainment expense
Personal clothing
✗ No
Unless it's a uniform with logo or protective gear
Branded uniform with logo
✓ Yes — 100%
Must have business branding on it
Gym membership
✗ No
Personal health — not deductible
LinkedIn Premium
✓ Yes — 100%
Business-related subscription
Netflix / Spotify
✗ No
Personal — not a business expense
Domain name & website hosting
✓ Yes — 100%
Essential business costs
Home to work travel
✗ No
Commuting is never deductible
Travelling between client sites
✓ Yes — 100%
Business travel between locations
Personal supermarket shop
✗ No
Personal living expenses not claimable
Coffee and snacks at office
✓ Yes — 100%
Provided for staff — deductible
IRD penalties and fines
✗ No
IRD late payment penalties — not deductible
Income protection insurance
✗ No
Personal insurance — not a business expense
Business interruption insurance
✓ Yes — 100%
Business-related insurance policy
Donations to charity
⚠️ Depends
Claim via personal return via donation tax credit
Tools under $1,000
✓ Yes — 100%
Low-value asset — claim in full immediately
Tools over $1,000
⚠️ Depreciated
Claim over useful life as depreciation
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Depreciation — Claiming Assets Over Time
Assets over $1,000 are depreciated annually — not claimed in full in year one
When you buy a business asset that lasts more than a year and costs more than $1,000 — like a vehicle, computer or piece of machinery — you can't claim the full cost in the year you buy it. Instead you depreciate it — which means claiming a portion of its value every year over its useful life.
IRD sets the depreciation rates for different types of assets. The most common method is diminishing value (DV) — where you apply the rate to the remaining book value each year. There's also straight-line (SL) depreciation — where you claim the same amount every year until the asset reaches zero.
The good news is that assets costing under $1,000 can be written off in full in the year of purchase. This is called the low-value asset rule and it means most small tools, office items and pieces of technology under $1,000 can be claimed immediately.
Asset Type
DV Rate
Useful Life
Example Claim Year 1 ($5,000 asset)
Laptop / Computer
50%
2 years
$2,500
Smartphone
50%
2 years
$750 (on $1,500 phone)
Office furniture
18%
~8 years
$900
Car (used in business)
30%
~5 years
$1,500 × business %
Heat pump / Air con
20%
~7 years
$1,000
Commercial kitchen equipment
18%
~8 years
$900
Shop fit-out
12%
~12 years
$600
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What You Cannot Claim — Common Mistakes
Just as important as knowing what you can claim is knowing what you can't. These are the most common overclaiming mistakes IRD picks up in small business audits:
🚨 IRD audit trigger areas: Vehicle personal use overclaiming, home office without logbook or floor area calculation, meals claimed at 100% instead of 50%, personal expenses run through the business, and capital improvements claimed as repairs.
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Personal Living Expenses
Groceries, power, rent, clothing — these are personal. You can only claim the portion that's genuinely used for business. Don't run personal expenses through your business account thinking they'll be deductible.
✗ Not deductible
🚙
Commuting to Work
Travel from your home to your regular place of work — even if that's a client's office you go to every day — is never deductible. IRD specifically excludes commuting as a business expense.
✗ Never deductible
💳
Capital Expenditure
Buying an asset — a vehicle, major equipment, building improvements — is not a deductible expense. It gets added to your depreciation schedule instead. Claiming capital purchases as expenses is one of the most common IRD adjustment items.
✗ Must be depreciated
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IRD Penalties & Fines
Late filing penalties, late payment interest and other IRD penalties are specifically excluded from deductibility. You can't reduce your tax bill by claiming the penalty you incurred for not paying your tax on time.
✗ Specifically excluded
👔
Personal Clothing
A suit or business attire you wear to meet clients is not deductible — even if you only wear it for work. To be deductible, clothing must be a uniform with your business logo or be protective work gear.
✗ Not deductible
🏋️
Personal Health & Wellness
Gym memberships, personal health insurance, medical bills and wellness apps are personal expenses. Even if you argue your health is important for your business performance — IRD won't accept these as deductions.
✗ Personal expense
📁
Record Keeping — What IRD Requires
You can claim every deduction on this page — but only if you have the records to back it up. IRD requires NZ businesses to keep records for 7 years. That's a long time, but digital storage makes it easy.
📋 Minimum Records IRD Expects You to Keep
Invoices and receipts for all expenses over $50
Bank statements for all business accounts
GST records — invoices, credit notes and GST returns filed
Payroll records — PAYE, KiwiSaver and Payday Filing history
Vehicle logbook — required for vehicle expense claims (90 days every 3 years)
Asset register — list of all depreciable assets with purchase price and date
Shareholder current account records (companies only)
Contracts and agreements for major business transactions
Lease agreements for any business premises or equipment
Any IRD correspondence, assessments and tax returns filed
💡 Pro tip: Use Xero's receipt capture feature on your phone to photograph receipts immediately when you receive them. This means you'll never lose a receipt and your records are always audit-ready. Your accountant can see everything in real time too.
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Tax Deductions vs GST Claims — They're Different Things
This trips up a lot of NZ small business owners. Income tax deductions and GST input tax credits are two completely separate things — and you need to understand the difference.
When you claim an expense as a deduction on your income tax return, it reduces your taxable profit and therefore reduces your income tax bill. When you claim back GST on business expenses, that's separate — you get back the 15% GST you were charged, directly from IRD, through your regular GST return.
Most business expenses give you both benefits: an income tax deduction and a GST refund on the purchase. To get the GST back, you need a valid tax invoice showing the GST component — which is why keeping proper invoices matters so much.
Director & Founder, Elite Taxation. AUT Graduate · CPA Australia (in progress) · IRD-Registered Tax Agent · Specialist in NZ Small Business Tax, GST and IRD Compliance.
🎓 AUT Graduate📋 CPA Australia (in progress)🛡️ IRD Registered Tax AgentIRD No. 135-715-344
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Frequently Asked Questions
NZ small businesses can claim any expense incurred to earn income — including vehicle costs, home office expenses, equipment, marketing, accounting fees, staff wages, software, insurance, travel, repairs and maintenance, phone and internet, and professional memberships. The expense must be real, business-related and not capital in nature. Mixed-use expenses like vehicles and home offices must be split between business and personal use.
Yes — if you have a dedicated space in your home used predominantly for business, you can claim a percentage of home costs including rent or mortgage interest, power, internet, rates and insurance. The percentage is based on the floor area of your home office divided by the total floor area of your home. IRD also offers a simplified $50 per week standard cost option which doesn't require you to calculate actual costs. See the IRD home office expenses guide for full details.
Yes, but only 50% of the cost is deductible. This applies to client lunches, team dinners, business entertainment and any meal where there's a genuine business purpose. You need to keep the receipt and note who attended and the business reason. Taking yourself for lunch while working alone is not deductible. Meals and snacks provided for staff at the office are 100% deductible as a staff expense.
The low-value asset threshold in New Zealand is $1,000 (excluding GST). Any business asset costing $1,000 or less can be written off in full in the year of purchase rather than depreciated over time. Assets costing more than $1,000 must be added to your depreciation schedule and claimed over their useful life at IRD's published depreciation rates.
IRD's general guidance is that you need supporting records for all expenses — but in practice, for expenses under $50 you don't need a physical receipt as long as you can prove the expense happened through other records like bank statements. For anything over $50, keep the invoice or receipt. For GST-registered businesses, you need a valid tax invoice to claim GST back on purchases over $50. IRD can go back 7 years so digital records stored securely are strongly recommended.
Yes — you just need to calculate the business-use percentage and apply it to your total vehicle costs. Keep a logbook for a continuous 90-day period to establish your percentage — you'll need to do this at least once every three years or whenever your usage pattern changes significantly. Alternatively, use IRD's kilometre rate method where you claim a set rate per business kilometre instead. Travel from your home to your regular workplace counts as personal — not business — travel.
If IRD audits your return and finds you've overclaimed deductions, they'll disallow the expenses, recalculate your tax liability, charge you the extra tax owed plus interest from the original due date, and may apply a shortfall penalty of up to 20% of the tax underpaid. If they believe the error was deliberate, penalties can be higher. The best protection is keeping complete records for all claims and having your return prepared by a registered accountant who knows the rules.
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Are You Claiming Everything You're Entitled To?
Most NZ small business owners miss at least 3–4 legitimate deductions every year. At Elite Taxation, our Auckland-based team reviews every expense category with you and makes sure your return is complete, correct and fully IRD compliant. Fixed monthly fees. No surprises.
