Retainer Invoice Template for New Zealand
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What is a Retainer Invoice?
The Retainer Invoice is a critical document used in New Zealand business operations where professional services are provided on an ongoing basis under a pre-arranged agreement. It serves as both a billing instrument and a formal record of services rendered, incorporating all necessary elements required by New Zealand tax legislation, particularly the Goods and Services Tax Act 1985. This document type is typically used when a client has engaged a service provider on a retainer basis, where regular payments are made in exchange for guaranteed service availability or regular service provision. The Retainer Invoice should include detailed information about the billing period, services covered, GST calculations, and payment terms, while maintaining compliance with New Zealand's financial reporting and tax requirements.
About the Retainer Invoice
A retainer invoice is a specialized billing document that allows you to charge clients for ongoing professional services under a pre-arranged agreement. In New Zealand, this document serves as both a payment request and legal record, ensuring compliance with multiple pieces of legislation while establishing clear financial obligations between service providers and clients.
When do you need this document?
You need a retainer invoice when providing professional services on an ongoing basis, such as legal representation, consulting, or advisory services. This document is particularly valuable when you've established a retainer agreement where clients pay regular amounts for guaranteed service availability or monthly service allocations. Professional services firms commonly use retainer invoices for clients who require continuous support, project-based work with monthly billing cycles, or exclusive service arrangements where immediate availability is guaranteed.
Key legal considerations
Your retainer invoice must clearly specify the billing period covered and provide detailed descriptions of services included under the retainer arrangement. The document should outline any unused retainer amounts that carry forward to subsequent periods and establish clear terms for additional work beyond the retainer scope. Include specific payment terms, late payment penalties if applicable, and procedures for retainer adjustments or termination. Ensure your invoice distinguishes between retainer fees for service availability versus actual work performed, as this affects both GST treatment and contractual obligations under New Zealand law.
Legal requirements in New Zealand
Under the Goods and Services Tax Act 1985, your retainer invoice must include your GST registration number if you're GST-registered, clearly show GST amounts separately, and contain sufficient detail for tax purposes. The Tax Administration Act 1994 requires you to maintain these invoices as financial records for at least seven years. Your invoice must comply with the Fair Trading Act 1986 by providing accurate service descriptions and avoiding misleading pricing information. Include your full business name, address, and contact details as required by the Contract and Commercial Law Act 2017 for valid contractual documentation. The Financial Transactions Reporting Act 1996 may require additional record-keeping if your retainer arrangements involve significant amounts or meet certain reporting thresholds.
GOVERNING LAW
Applicable law
This Retainer Invoice is drafted to comply with New Zealand law. Key legislation includes:
Contract and Commercial Law Act 2017: Provides the fundamental legal framework for contracts in New Zealand, including formation, interpretation, and enforcement of contractual agreements
Fair Trading Act 1986: Ensures fair trading practices and prohibits misleading and deceptive conduct in trade, including pricing and service descriptions
Tax Administration Act 1994: Sets requirements for maintaining financial records and documentation for tax purposes, including invoice retention periods
Financial Transactions Reporting Act 1996: Outlines requirements for recording and reporting financial transactions, which may be relevant for certain types of retainer arrangements
Credit Contracts and Consumer Finance Act 2003: May be relevant if the retainer arrangement includes any credit terms or payment plans
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