Tradie Legal Requirements New Zealand (2026 Checklist)

Executive Summary

The legal boxes every New Zealand tradie has to tick

Registration: electricians need EWRB registration, plumbers/gasfitters/drainlayers need PGDB registration, and building or restricted building work needs an LBP, for any job, no matter the size
Insurance: public liability for almost every site, and ACC work levies the moment you employ anyone (NZ has no separate "workers comp" to buy, ACC is compulsory and no-fault)
Contracts and tax: a written contract is smart practice past a few thousand dollars, an NZBN on every invoice, GST once you hit NZ$60,000
Safety: the Health and Safety at Work Act 2015 applies to every tradie, and most principal contractors expect a Site Safe card even though it isn't a legal mandate
Marketing and website: honest advertising under the Fair Trading Act, a privacy policy (NZ has no small-business exemption), and your NZBN on show

If you are setting up from scratch, our step-by-step guide on going from subbie to your own trade business walks the order. This guide is the standing checklist: am I actually compliant right now?

Quick heads up. This is a plain-English guide, not legal, tax, or financial advice. The figures are current as of 2026, and several are moving targets this year (flagged below). Fees and thresholds change, so check the official source linked for each point and talk to an accountant or the relevant regulator about your own situation.

Legal requirements for tradies are the registrations, insurances, contracts, tax obligations, safety duties, and advertising rules you must meet to carry out and charge for trade work in New Zealand. Some of them kick in at a hard dollar threshold, and getting one wrong can mean a fine, a job you cannot enforce, or a bill you did not see coming.

A few numbers to frame why this matters:

Prescribed Electrical Work carried out by someone who isn't registered and licensed with the Electrical Workers Registration Board is a breach of the Electricity Act 1992, and PGDB-restricted plumbing, gasfitting and drainlaying work is exactly the same story under the Plumbers, Gasfitters, and Drainlayers Act 2006 1 2.

KiwiSaver's minimum employer contribution stepped up from 3% to 3.5% on 1 April 2026 and is set to reach 4% on 1 April 2028, so if your payroll is still set to 3% you are underpaying your staff 3.

A statutory contractor gateway test commenced 20 February 2026, and if a worker you have treated as a contractor challenges that status, you now need to show a written agreement plus four specific conditions were met, not just point at their NZBN 4.

This guide covers all of it in plain English.

Do You Need to Be Registered to Work as a Tradie?

Short answer: for the three big regulated trades, yes, for any job, no matter how small. Unlike Australia there is no state-by-state table to check, one national scheme per trade.

Electrical work. Anyone carrying out or supervising Prescribed Electrical Work (PEW) must be registered and hold a current practising licence with the Electrical Workers Registration Board (EWRB), under the Electricity Act 1992 and the Electricity (Safety) Regulations 2010. There is no minor-jobs exemption for PEW 1.

Plumbing, gasfitting and drainlaying. Restricted work in any of these three areas can only be carried out or supervised by someone registered and licensed with the Plumbers, Gasfitters and Drainlayers Board (PGDB), under the Plumbers, Gasfitters, and Drainlayers Act 2006. Note these are three separate registrations, not one blanket "plumbing" ticket, so a plumber doing gas work needs the gasfitting registration called out separately, and a plumber laying drains needs the drainlaying registration too 2.

Building, carpentry, roofing and structural work. A Licensed Building Practitioner (LBP), administered by MBIE under the Building Act 2004, is required to carry out or supervise Restricted Building Work, meaning work affecting a home's structure or weathertightness, and has been since 1 March 2012 5.

Here is the distinction that trips people up in any registered trade. Being registered and licensed says you are qualified to carry out the restricted work. It does not automatically mean you can run every side of a job unsupervised on every project, so always check the specific licence class against the specific work you are quoting, using the regulator's own register.

Trade	Regulator	What triggers it
Electrical	EWRB	Any Prescribed Electrical Work
Plumbing / gasfitting / drainlaying	PGDB	Any restricted work in that class
Building / carpentry / roofing / structural	LBP via MBIE	Any Restricted Building Work
Solar install (grid-connected)	EWRB (plus the Mains Parallel Generation Systems endorsement, phasing in from Sept 2024)	Any grid-tied electrical connection
Painting	No licence, Master Painters NZ is a voluntary industry body	N/A
Pest control (hazardous substances)	WorkSafe NZ Certified Handler status	Handling HSNO 6.1A/6.1B substances, fumigants, vertebrate toxic agents

Because it's one national scheme per trade, there is no NZ equivalent of Australia's state-by-state mutual recognition maze, once you're registered with EWRB or PGDB, or licensed as an LBP, that status is national.

Action: Confirm your registration or licence is current on the regulator's public register (EWRB, PGDB or the LBP register at lbp.govt.nz), and check it actually covers the class of work you're quoting.

What Insurance Do You Legally Need?

Two things matter here, and NZ's setup is genuinely different from Australia's, not just relabelled.

Public liability is not written into one law as a flat requirement, but it is expected by commercial clients, principal contractors and most head contracts before you set foot on site. In practice, you cannot realistically work commercially without it.

ACC cover, not "workers comp". New Zealand does not have a workers compensation scheme you buy like insurance. Instead, the Accident Compensation Corporation (ACC) runs a single, compulsory, no-fault national scheme. If you employ anyone, you pay a compulsory Work levy, rated by your industry's risk profile and your payroll. In exchange, injured workers generally cannot sue for personal injury, ACC pays for treatment and up to 80% of lost income instead. If you are a sole trader with no staff, you still pay ACC levies as a self-employed person, so check your own cover level and top-up options rather than assuming you're automatically fully covered 6.

Home warranty insurance does not exist as a mandatory scheme in New Zealand. This is one of the biggest contrasts with Australia, where a compulsory home warranty scheme (icare in NSW, for example) kicks in above a dollar threshold. In NZ, builder guarantees are entirely voluntary: the Master Build 10-Year Guarantee (Registered Master Builders) and the Halo 10-Year Guarantee (NZ Certified Builders, Lloyd's-underwritten) sit alongside the implied warranties in the Building Act 2004, but there is no statutory equivalent you must purchase before taking a deposit 7.

⏳ Worth watching: a mandatory home-warranty scheme (broadly, a 1-year defect period plus a 10-year structural guarantee for buildings up to three storeys, or renovations over NZ$100,000) was announced 24 November 2025 via a Building Amendment Bill, but as of writing it is not yet law. Don't tell customers it's compulsory until it actually is 7.

Professional indemnity matters if you do design work or provide specifications, and tool and contract-works cover isn't a legal requirement but protects your gear and half-finished jobs.

Action: Confirm your public liability limit matches what your commercial sites and head contractors demand, check your ACC levy classification is correct for your actual work, and if you're quoting builder guarantees, be clear with customers that Master Build and Halo are voluntary, not compulsory.

Do You Need a Written Contract?

Not a single hard legal trigger the way NSW has one at $5,000, but a written contract is strongly recommended past a few thousand dollars, and a handshake gives you very little to stand on if a job goes wrong.

Good practice for any sizeable residential job:

The parties' names and contact details
Your registration or licence number where one applies (EWRB, PGDB or LBP)
A clear description of the work and materials
The price, and how variations are handled
A payment schedule for larger jobs
What happens if either side wants to end the contract early

The Consumer Guarantees Act 1993 sits underneath every job regardless of whether you signed anything: your work has to be of acceptable quality, fit for purpose, and carried out with reasonable care and skill, in a reasonable time, for a reasonable price. If it isn't, the customer's remedies are repair, replacement or refund at no cost to them 8. A written contract doesn't replace that guarantee, but it makes disputes over scope, price and variations far easier to resolve, and far easier to enforce if it ends up in the Disputes Tribunal.

Action: Use a written contract or at minimum a detailed written quote for any job past a few thousand dollars, and keep a paper trail of every variation the customer agrees to.

What Tax and Registration Do You Have To Sort?

This part is national, so it applies the same whether you're in Auckland, Hamilton, Wellington or Hawke's Bay.

NZBN: the New Zealand Business Number is a free, 13-digit identifier administered by MBIE. Companies are automatically assigned one on incorporation; sole traders, partnerships and trusts can apply for free using RealMe, an IRD number and ID. Put it on your quotes and invoices, it's the NZ equivalent of putting your ABN on show, and it signals a registered, legitimate business 9.

Company registration, if you incorporate rather than trade as a sole trader, goes through the NZ Companies Office (companies-register.companiesoffice.govt.nz) via RealMe. Indicative fees (each plus GST, correct as of the 2025 MBIE fees review): NZ$10 for a name reservation, NZ$118.74 to incorporate, NZ$49.74 for the annual return. Your NZBN is issued automatically on incorporation 10.

GST: registration is compulsory once your turnover crosses NZ$60,000 in any rolling 12-month period (you can register voluntarily below that). You have 21 working days from when you expect to cross the line to register with IRD. Miss it and IRD can still treat you as liable for GST on your sales from the date you should have registered 11.

Tax invoices changed name and structure on 1 April 2023: "tax invoice" became "taxable supply information", tiered by value. For supplies of NZ$200 or less, minimal information is fine. Between NZ$200 and NZ$1,000, you need more detail. Above NZ$1,000, the fullest requirements apply, including the buyer's name and an identifier and your GST number. If a customer asks for it, you have 28 days to provide it for any supply over NZ$200 12.

KiwiSaver: if you have staff enrolled in KiwiSaver, the minimum employer contribution is 3.5% of their gross pay (it stepped up from 3% on 1 April 2026), rising again to 4% from 1 April 2028. This is structurally different from the Australian super guarantee (12% and paid to a super fund), so don't assume the same percentage or mechanics apply 3.

Records: IRD generally expects business records to be kept for 7 years.

Action: Track your rolling 12-month turnover so you see the NZ$60,000 GST line coming, and check your payroll is applying the 3.5% KiwiSaver employer rate that took effect on 1 April 2026 (with the next step to 4% due 1 April 2028).

Are Your Subbies Actually Employees?

This is the area Employment NZ is tightening hardest, and the one tradies most often get wrong.

"They've got an NZBN, so they're a contractor" is the number one myth, an NZBN says nothing about employment status. What decides it has historically been a set of common-law tests (control, integration, the "fundamental" test) applied by the Employment Relations Authority. As of 20 February 2026, there is now also a statutory gateway test under the Employment Relations Amendment Act 2026: if a written agreement is in place and four specific conditions are all met, the worker is treated as a contractor; if not, the older common-law tests still apply 4.

A worker looks like an employee if they:

Work mainly or only for you
Work the hours, methods and location you set
Use your tools and equipment
Cannot send someone else in their place
Are paid for their time, not for a quoted result

A genuine contractor runs their own show: multiple clients, their own tools, quotes a price for a result, carries the risk and cost of fixing their own mistakes, and can delegate the work.

Get this wrong and misclassification exposes you to back-pay, holiday pay, KiwiSaver contributions and personal grievance claims, on top of the reputational cost.

Action: Check every regular subbie relationship against the gateway test's four conditions and make sure you have a written agreement in place. If someone looks like an employee under the common-law tests, fix the arrangement before Employment NZ or the worker does.

What Are Your Safety Obligations?

Every tradie in New Zealand has duties under the Health and Safety at Work Act 2015 (HSWA), the single national health and safety law, in force since 4 April 2016 and regulated by WorkSafe NZ. That duty applies to keeping anyone affected by your work safe, clients, neighbours, the public, not just your own crew, and it applies even if you're a one-person sole trader 13.

⏳ An amendment to HSWA is scheduled to land 1 April 2027, so if you're reading this close to that date, check whether anything below has changed.

In practice, day to day:

Site Safe card: unlike Australia's mandatory White Card, the Site Safe Site Safety Card is not a legal requirement in New Zealand. It's an industry-standard credential most principal contractors will insist on for site access, so in practice you'll struggle to get onto a lot of commercial sites without one, but it isn't a statutory mandate the way the White Card is in Australia 14.
Hazardous substance handling (relevant for pest control, and for handling certain refrigerants) requires Certified Handler status under HSWA regulations for the most hazardous classes, valid for 5 years.
If you work on anything built before the mid-1980s to early 1990s, treat suspect material as asbestos until proven otherwise, and don't disturb it without an assessment.

Action: Get a Site Safe card if you work on commercial sites, since most principal contractors will require it even though it isn't law, and build a simple safety plan for any genuinely high-risk work you do.

What Are the Legal Rules for Your Marketing and Website?

This is the part most tradies never think about, and it sits on your website and your van where anyone, including a competitor, can see it.

Your advertising has to be honest

The Fair Trading Act 1986, enforced by the Commerce Commission, bans misleading or deceptive conduct in trade, nationwide. That catches fake or edited before-and-after photos, "was NZ$5,000, now NZ$3,000" pricing that was never really NZ$5,000, made-up qualifications, and fake or incentivised reviews. The Commerce Commission has actually prosecuted this: in Commerce Commission v Bachcare (2019), the company was fined NZ$117,000 over misleading conduct. Penalties under the Act currently run up to NZ$200,000 for an individual and NZ$600,000 for a body corporate per breach 15.

⏳ A 2025/26 reform is expected to lift those penalties to roughly NZ$1 million for individuals and NZ$5 million for body corporates, but that has not yet passed. Don't quote the higher figures as current law until it does.

"Best plumber in Hastings" with nothing to back it up is a risk, not a tagline.

Get a privacy policy on your website now, whatever your size

Here is the single biggest contrast with Australia's rules, and the one most likely to catch a New Zealand tradie out if they've read AU content. The Privacy Act 2020 applies to every business in New Zealand, with no turnover or size exemption. The Office of the Privacy Commissioner explicitly lists sole traders and small businesses among those it covers, there is no equivalent of Australia's under-A$3 million carve-out 16. If your contact form collects a name, phone number or email address, you're covered, full stop.

Two more reasons to sort one regardless:

If you run Google or Meta ads, you already need one. Their ad policies require a privacy policy on your site.
It's a basic trust signal. A contact form with no word on what happens to the customer's details looks dodgy.

Action: Get a privacy policy on your website now, it's a cheap, one-off job, and in New Zealand it isn't optional past some future date, it already applies to you today.

Show your NZBN

Displaying your NZBN isn't a website law as such, but it tells customers you're a registered, legitimate business, and it's free to get and cheap to display.

Action: Put your registration or licence number (EWRB, PGDB or LBP where it applies), your NZBN, and a privacy policy on your website, and check your ad accounts have one on file. Not sure your site covers the basics? See what a good tradie website looks like and why tradie sites must be mobile-first.

What's Actually Different From Australia?

If you've read any Australian tradie content, here's the short version of what changes crossing the Tasman. New Zealand runs single national schemes where Australia runs eight separate state ones, and a handful of specific rules flip the other way.

Area	Australia	New Zealand
Trade licensing	State-by-state (NSW Fair Trading, QBCC, VBA…)	One national body per trade (EWRB, PGDB, LBP/MBIE)
GST threshold	A$75,000	NZ$60,000
Business number	ABN	NZBN
Site safety card	White Card, legally mandatory	Site Safe card, industry-standard but not legally mandatory
Injury cover	Workers compensation (state schemes, fault can matter)	ACC (single national, no-fault)
Retirement savings	Super guarantee, 12%	KiwiSaver, employer minimum 3.5% (up from 3% on 1 April 2026), rising to 4% from 1 April 2028
Home warranty	Compulsory above a state threshold	No mandatory scheme; Master Build and Halo are voluntary
Privacy law	Privacy Act 1988, exemption below A$3M turnover	Privacy Act 2020, applies to every business, no exemption
Consumer/ads law	Australian Consumer Law / ACCC	Fair Trading Act 1986 / Commerce Commission

The rule of thumb: don't assume an Australian figure, threshold or exemption applies here. New Zealand's version is usually a single national rule, but it is rarely the same number, and in the case of privacy law and home warranties, it runs the opposite direction to what you'd expect.

Is Your Website Doing the Legal Basics?

Most of this list is off-site paperwork. But some of it lives on your website right now: your registration or licence number, a privacy policy, and your NZBN as best practice. Those are the easiest to get wrong and the easiest to fix.

Want a hand getting your trade and online setup right? Have a chat with us, no pitch, just a straight read on where you stand.

What a compliant tradie site costs

Single Page$1,099
one page, conversion sections, Call + Get a quote
Multi-Page$2,199$1,899Founding Offer
Home, About, Reviews, Contact + page per service
Multi-Page + Extras$3,299
above + ~10 suburb pages + Google Business Profile optimisation

Maintenance: optional $50/month for edits on existing pages (what maintenance covers)

Free strategy call →

A 20-minute call and a plan for more leads. No sales pitch.

Prefer to check the site you already have? Run a free website audit or a free Google listing audit and we will flag what is missing, including the compliance basics.

Frequently Asked Questions

Do I need to be registered to work as a tradie in New Zealand?

For electrical work you need EWRB registration and a current practising licence for any Prescribed Electrical Work, no matter the value. For plumbing, gasfitting and drainlaying, PGDB registration and licensing covers any restricted work in those classes. For building work affecting structure or weathertightness, you need an LBP under the Restricted Building Work scheme. These are single national schemes, unlike Australia's state-by-state licensing.

Is public liability insurance legally required for tradies in New Zealand?

It isn't written into one flat law, but commercial clients and principal contractors expect it before you start, so in practice you can't work commercially without it. What is compulsory is ACC cover: if you employ anyone, you pay a compulsory, no-fault Work levy, and there's no separate "workers comp" policy to shop for the way there is in Australia.

Do I need a written contract for a residential job?

There's no single statutory dollar trigger like NSW's $5,000 rule, but a written contract or detailed written quote is strongly recommended for anything past a few thousand dollars. Every job is still covered by the Consumer Guarantees Act 1993 regardless of whether anything was signed, work has to be of acceptable quality and fit for purpose, or the customer can demand repair, replacement or a refund.

Is home warranty insurance compulsory in New Zealand?

No. Unlike Australia, New Zealand has no mandatory statutory home-warranty scheme. Master Build (Registered Master Builders) and Halo (NZ Certified Builders) are voluntary 10-year guarantees, not a legal requirement. A mandatory scheme was announced in November 2025 but is not yet law, so don't tell customers it's compulsory until it actually passes.

Do I owe KiwiSaver to my subbies?

KiwiSaver employer contributions only apply to genuine employees enrolled in the scheme, not to genuine contractors. But if a "contractor" actually works your hours, uses your tools and can't send a replacement, they may really be an employee under the common-law tests or the new statutory gateway test (in force from 20 February 2026), and treating them as a contractor when they're not exposes you to back-pay and KiwiSaver contribution claims.

Do I need a privacy policy on my tradie website?

Yes, regardless of your size or turnover. Unlike Australia's Privacy Act 1988, which exempts small businesses under roughly A$3 million turnover, New Zealand's Privacy Act 2020 applies to every business, sole traders included, with no exemption. If your site collects a name, phone number or email, get a privacy policy on it now.

Do I need to display my registration number on my website and ads?

There's no single blanket law requiring it the way NSW mandates licence numbers on ads, but showing your EWRB, PGDB or LBP number where it applies builds trust and lets a customer verify you on the public register before they book. Your advertising still has to be honest either way, the Fair Trading Act 1986 bans misleading conduct in all advertising, so fake before-and-after photos or invented pricing claims are a genuine legal risk regardless of registration display.

References:

This article is general information for New Zealand tradies, current as of 2026. It is not legal, tax, financial, or insurance advice. Fees, thresholds, and rules change, so confirm the current details with the official source linked for each point and speak to a licensed accountant, lawyer, or the relevant regulator before you act.

Published by Made 4 Tradies. Kiwi-owned, run by a Hawke's Bay local. Serving Hawke's Bay, Hastings, Napier, and nationwide.

Tradie Legal Requirements in New Zealand: The Complete 2026 Checklist