How to Create a GST Invoice in New Zealand
Creating a GST invoice doesn't need to be complicated. With Daybook's free invoice generator, you enter your details once, add your line items, and download a professional PDF — all in under a minute.
Here's how it works:
- Enter your business details — your name, address, and GST number (if registered). These are saved for next time.
- Add your client's details — who you're billing and where to send it.
- Add line items — describe the work, enter the amount, and the GST is calculated automatically.
- Download and send — get a professional PDF you can email, text, or share via WhatsApp.
No account needed. No sign up required. Just a clean, compliant invoice you can send in under a minute.
What Must Be on a Tax Invoice in NZ?
The IRD has specific requirements for what makes a valid tax invoice. If you're GST registered, your invoices must include certain information — otherwise your customers can't claim GST back, and you could have issues at tax time.
IRD Tax Invoice Requirements
- The words "Tax Invoice" — clearly displayed on the document
- Your business name and GST number — so the IRD knows who issued it
- Invoice date — when the invoice was issued
- Your customer's name and address — for invoices over $1,000
- Description of goods or services — what you're charging for
- The amount, excluding GST — the base price
- The GST amount — clearly shown (15%)
- Total amount including GST — the final amount payable
Daybook includes all of this automatically. You fill in your details, and we make sure the invoice meets IRD requirements. No need to remember the rules or worry about compliance.
GST or No GST: Which Invoice Do You Need?
Not everyone needs to charge GST. In New Zealand, you're only required to register for GST if your turnover exceeds $60,000 per year (or you expect it to). Below that threshold, registration is optional.
If you're not GST registered, you can still use Daybook — just leave the GST number blank and create a standard invoice. The invoice won't show GST calculations, which is exactly what you need.
If you're GST registered, add your GST number in your business details and Daybook will automatically calculate and display GST on every invoice.
Not sure if you should register? Use our GST Registration Checker to see if you've hit the threshold, or check out our GST Calculator to understand how GST affects your pricing.
Who Uses This Invoice Generator?
Daybook is built for New Zealand sole traders, tradespeople, and small business owners who want to get paid without the admin headache. Perfect for:
Whether you're fixing a hot water cylinder, rewiring a house, or designing a logo — if you do work and need to get paid, Daybook helps you invoice properly and professionally.
Invoice Templates by Trade and Use
Need a template that fits your trade or situation? These pages include example line items and when to use them. Each links to the same free invoice generator.
Why Tradies Choose Daybook
It works on your phone. Daybook is built mobile-first. Create an invoice from the van, the site, or wherever you finish the job.
No sign up required to start. Many invoicing apps charge a monthly fee from day one. Daybook lets you create invoices with no sign up required—upgrade when you need more.
GST calculated for you. No calculator, no mental maths. Enter your amounts and Daybook handles the GST.
Looks professional. Daybook invoices are clean and modern—so your business looks the part even if you're just starting out.
Ready to Get Paid Faster?
Join the rest of NZ tradies who've ditched the spreadsheets.
Create Your First InvoiceFrequently Asked Questions
Is there a free option?
Yes. No sign up or credit card required. Create invoices and download PDFs. You can upgrade later if you need more features.
Are the invoices GST compliant for IRD?
Yes. Daybook invoices include all the information required by the IRD for a valid tax invoice: your business name, GST number, invoice date, description of goods or services, GST amount, and total including GST.
Do I need to create an account?
No. You can create and download invoices immediately without signing up. Your business details and invoice history are saved locally on your device, so your information is ready next time you need it.
Can I use this on my phone?
Yes. Daybook is built mobile-first for creating invoices on the go. Works on iPhone, Android, tablets, and computers.
Can I add my business logo?
Yes. Upload your logo in your business details and it'll appear on every invoice. Makes your invoices look professional without any extra effort.
How do I send the invoice to my customer?
After creating your invoice, you can download it as a PDF, share it via email, text message, or WhatsApp, or copy a shareable link. Send it however your customer prefers.
What if I'm not GST registered?
No problem. Just leave the GST number field blank and Daybook will create a standard invoice without GST calculations. Perfect for businesses under the $60,000 threshold.
Free Tools for NZ Business
Start Invoicing Properly
You didn't get into your trade to become an accountant. Daybook handles the admin so you can focus on the work. Professional invoices, correct GST, no sign up required — just the basics done right.