Informal Invoice Template for New Zealand

An Informal Invoice is a straightforward billing document that allows you to request payment from customers for goods or services you've provided. While it's called "informal," this document still needs to meet certain legal requirements under New Zealand law, particularly if your business is registered for GST. Understanding when and how to use this document properly can streamline your billing process while ensuring compliance with local regulations.

When do you need this document?

You'll need an Informal Invoice whenever you want to bill a customer in a less formal setting than a full tax invoice requires. This is particularly useful for small businesses, freelancers, and contractors who provide services or sell goods but don't need the complexity of a formal tax invoice. You might use this document when billing for consulting services, small retail transactions, or ongoing service agreements where a simpler format is more appropriate. It's also valuable when you're dealing with customers who prefer straightforward, easy-to-understand billing documents without extensive legal terminology or complex formatting.

Key legal considerations

While informal in nature, your invoice must still include essential information to be legally valid and useful for both parties. The document should clearly identify your business, include accurate descriptions of goods or services provided, and specify payment terms and amounts. If you're GST-registered, you must include your GST number and clearly show GST amounts, even on informal invoices. The Contract and Commercial Law Act 2017 requires that commercial documents accurately represent the transaction, so ensure all details are correct and complete. Under the Fair Trading Act 1986, any descriptions of services or goods must be accurate and not misleading, which extends to how you describe items on your invoice.

Legal requirements in New Zealand

New Zealand law imposes specific requirements on business invoicing, even for informal documents. The Goods and Services Tax Act 1985 mandates that if your business has a GST turnover exceeding $60,000 annually, you must register for GST and include GST details on all invoices. Your informal invoice must include your legal business name, contact details, and if applicable, your GST number. The Tax Administration Act 1994 requires you to maintain proper records of all business transactions, including informal invoices, for at least seven years. If you're providing goods or services to consumers, the Consumer Guarantees Act 1993 may require you to include information about consumer rights, particularly for transactions involving warranties or guarantees. Additionally, ensure your invoice clearly states payment terms, due dates, and any applicable interest charges for late payment to avoid disputes and ensure enforceability under New Zealand commercial law.