When do I need to register for GST as an electrician?

You must register for GST when your turnover exceeds $60,000 in any 12-month period. You can also voluntarily register if your turnover is below this threshold, which may be beneficial if you have significant business expenses.

How often do electricians need to file GST returns?

Most electricians file GST returns every two months (bi-monthly). However, you can choose to file monthly if you prefer, or every six months if your turnover is under $500,000 per year.

Can I claim GST on tools and vehicle expenses?

Yes, you can claim GST on tools, vehicle expenses, safety equipment, and other business-related purchases. Keep all tax invoices and receipts. For vehicles, you can only claim GST on the business-use portion.

GST Guide for NZ Electricians: Registration, Filing & Common Mistakes

Understanding GST is crucial for every electrician running their own business in New Zealand. Whether you're just starting out or you've been in the trade for years, getting your GST obligations right can save you thousands of dollars and prevent headaches with Inland Revenue.

Quick GST Facts for Electricians

GST rate in NZ is 15% on most goods and services
Register when your turnover exceeds $60,000/year
File returns monthly, 2-monthly, or 6-monthly
Claim GST back on business expenses

When Do You Need to Register for GST?

The $60,000 threshold is the key number to remember. You must register for GST if:

Your turnover was $60,000 or more in the last 12 months
You expect your turnover to be $60,000 or more in the next 12 months
You charge GST-inclusive prices for your services

Example: If you're a sole trader electrician earning $5,500 per month ($66,000/year), you must register for GST.

Should You Register Voluntarily?

Even if you're under $60,000, voluntary GST registration can be beneficial:

✓ Claim GST back on tools, van, and equipment
✓ Looks more professional to commercial clients
✓ Required for some government contracts
✗ Adds admin work with regular filings
✗ Must charge 15% more (though you claim it back)

How to Register for GST

Registration is straightforward through Inland Revenue's online services:

Log in to myIR: Go to ird.govt.nz and sign in
Register for GST: Look for "Register for new tax accounts" in the menu
Choose your filing frequency: Most electricians choose 2-monthly
Select accounting basis: Payments (cash) basis is simplest for most tradies
Confirm your details: Check everything is correct and submit

You'll receive your GST registration number within a few days. This must appear on all your invoices.

GST Filing Frequency Options

Frequency	Best For	Due Date
Monthly	High turnover ($24M+), frequent refunds	28th of following month
2-Monthly	Most electricians (recommended)	28th after period end
6-Monthly	Turnover under $500,000/year	28th October & 7th May

Calculating Your GST Return

The basic formula is simple:

GST on Sales (Output Tax)
−
GST on Expenses (Input Tax)
=
GST to Pay or Refund

Example GST Calculation

John's Electrical Services - Two-Month Period

Total sales (GST inclusive):$23,000

GST content (divide by 23 × 3):$3,000

Tools and materials:$5,750

Vehicle expenses (business portion):$1,150

Safety equipment:$460

Total expenses:$7,360

GST on expenses:$960

GST to pay:$2,040

What Can You Claim GST On?

✓ Claimable Expenses

Tools and testing equipment
Safety gear and PPE
Vehicle expenses (business use % only)
Fuel for work vehicles
Materials and supplies
Accounting and legal fees
Insurance premiums
Phone and internet (business portion)
Workshop/office rent
Training and professional development
Trade subscriptions (ECANZ, etc.)

✗ Cannot Claim GST On

Personal expenses
Wages and salaries (no GST on wages)
Bank fees and interest
Fines and penalties
Entertainment expenses (50% claimable in some cases)
Items for private use

Vehicle Expenses: The Tricky Part

Vehicle expenses are often the largest deduction for electricians, but you can only claim the business-use portion. Here are the three methods:

Method 1: Logbook (Most Accurate)

Keep a logbook for 90 consecutive days recording all business trips. Calculate the business percentage and apply it to all vehicle costs for the next 3 years.

Method 2: Kilometre Rate (Simpler)

Use IRD's set rates per km for business travel. First 14,000km at one rate, additional kms at a lower rate.

Method 3: 50/50 Split (If No Logbook)

If you don't keep records, you can only claim 50% of vehicle costs. Most electricians use their van more than 50% for business, so keep records!

Common GST Mistakes Electricians Make

❌ Mistake #1: Not Registering on Time

If you hit $60,000, you must register within 21 days. Late registration can result in penalties and having to pay GST on sales you already made.

❌ Mistake #2: Claiming GST on Wages

Wages, salaries, and contractor payments don't include GST. Don't try to claim GST on these - IRD will catch this quickly.

❌ Mistake #3: Losing Tax Invoices

You need tax invoices to claim GST. Take photos of receipts immediately or use an app like TPT ERP to photograph and store them digitally.

❌ Mistake #4: Claiming 100% of Vehicle Costs

Unless you have a dedicated work vehicle you never use personally, you can't claim 100%. Keep a logbook to maximise your legitimate claim.

❌ Mistake #5: Missing Filing Deadlines

Late filing incurs penalties. Set calendar reminders for your GST due dates. Consider using accounting software with automatic reminders.

Using Software to Track GST

Manual GST tracking is time-consuming and error-prone. Modern software can automate most of the work:

How TPT ERP Handles GST

Automatic 15% GST calculation on all quotes and invoices
GST-compliant tax invoices with your registration number
Track GST on expenses with photo receipt capture
Generate GST reports for your accountant or IRD filing
Export data to Xero or MYOB for complete accounting

FAQ

Do I charge GST on labour or just materials?

You charge 15% GST on your total invoice, including both labour and materials. The customer pays GST on everything. You then pay that GST to IRD (minus what you paid on your own business expenses).

What if a customer doesn't pay their invoice?

If you're on the payments basis (most electricians are), you only pay GST when you receive payment. So bad debts don't create a GST liability. If you're on the invoice basis, you may need to make an adjustment.

Can I claim GST on a vehicle purchase?

Yes, you can claim the GST on a work vehicle purchase, but only the business-use percentage. If the vehicle is available for private use, fringe benefit tax (FBT) rules may apply. Talk to your accountant about the best structure.

How long do I need to keep GST records?

You must keep all tax invoices and records for at least 7 years. This includes both sales invoices and expense receipts. Digital copies are acceptable if they're clear and complete.

Key Takeaways

Register for GST when you hit $60,000 turnover (or voluntarily before)
File every 2 months (most common) or choose monthly/6-monthly
Keep all tax invoices - photograph them immediately
Track vehicle usage with a logbook to maximise claims
Use software to automate calculations and reduce errors