What changed in 2023
From 1 April 2023, Inland Revenue replaced the old tax invoice rules with taxable supply information (TSI). You no longer need one particular document — the information can be spread across invoices, contracts and statements — but most glaziers still send one invoice with everything on it, and you can still head it "Tax invoice". GST is 15%.
What to show, by price
| Supply (including GST) | Information to give |
|---|---|
| $200 or less | Your name, the date, a description of what was supplied, and the amount. |
| Over $200, up to $1,000 | All of the above, plus your GST number, and either the amounts before and after GST with the GST shown, or the GST-inclusive total with a statement that it includes GST. |
| Over $1,000 | All of the above, plus details that identify a GST-registered buyer — for example their name and an address, phone number, email, NZBN or website. |
If a GST-registered customer asks for the information on a supply over $200, you must give it within 28 days.
In practice
Builders, property managers and commercial customers will usually need the over-$1,000 information, so get their business details at the quote stage rather than chasing them at invoice time. Make sure deposit and final invoices add up to the job so the GST isn't counted twice.
Where Coglass fits
Coglass is not GST-return software. It produces the invoices and hands them to Xero, where your GST return is prepared:
- Deposit, proforma and final invoices from the job, with payments recorded against them and overdue invoices flagged.
- Xero. Invoices, payments and supplier bills push to your Xero organisation, coded to the accounts and tax rates you choose from your own Xero settings — your returns are then done in Xero.
- Customers pay by card from the invoice link when you connect your own Stripe account, and the payment is recorded on the invoice.
Want to see it on your own jobs? Book a demo or see pricing in NZD.
Sources
This page explains the rules in general terms. Standards and tax rules change, and how they apply depends on the job — check the source, your building control body or your accountant before relying on it.