An invoice is a commercial document a seller issues to a buyer to request payment for goods or services. It records what was supplied, when, at what price, and on what payment terms. Invoices create a clear paper trail for both parties, support accurate bookkeeping, and serve as evidence if a payment is ever disputed. A standard invoice includes: - Your business name, address, and contact details - The client's name and billing address - A unique invoice number and issue date - A description of products or services with quantities and unit prices - Subtotal, any tax (such as GST), and total amount due - Payment due date and accepted payment methods Invoices differ from receipts: an invoice requests payment before money changes hands, while a receipt confirms payment after it's been made. In Australia, businesses registered for GST must issue tax invoices for sales over $82.50 (including GST). You can create a professional invoice in under two minutes with InvoiceSonic's free generator — no signup, watermark, or credit card required.

What Is an Invoice? | InvoiceSonic FAQs

What Is an Invoice?

An invoice is a commercial document a seller issues to a buyer to request payment for goods or services. It records what was supplied, when, at what price, and on what payment terms. Invoices create a clear paper trail for both parties, support accurate bookkeeping, and serve as evidence if a payment is ever disputed.

A standard invoice includes:

Your business name, address, and contact details
The client's name and billing address
A unique invoice number and issue date
A description of products or services with quantities and unit prices
Subtotal, any tax (such as GST), and total amount due
Payment due date and accepted payment methods

Invoices differ from receipts: an invoice requests payment before money changes hands, while a receipt confirms payment after it's been made. In Australia, businesses registered for GST must issue tax invoices for sales over $82.50 (including GST). You can create a professional invoice in under two minutes with InvoiceSonic's free generator — no signup, watermark, or credit card required.

What Is an Invoice?

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