How to Invoice as a Contractor

As a contractor you invoice your client like any other business — but you need to be especially careful about accurate hours, agreed rates, GST handling, and including your ABN. Many contractors are paid weekly or fortnightly, so consistent, timely invoicing keeps cash flow steady.

Every contractor invoice should include:

Your full name or trading name and ABN
Your contact details and bank or PayID for payment
The client's name, address, and project or purchase order reference
The dates worked or the billing period covered
A breakdown of hours, days, or milestones with the agreed rate
Subtotal, GST (if registered for GST), and total amount due
Payment terms — most contractors use Net 7 or Net 14

If you don't quote an ABN, the client may withhold 47% of your payment under the No-ABN Withholding rule. For ongoing engagements, set up a recurring invoice template with the project details pre-filled. InvoiceSonic supports timesheets, milestone billing, and weekly recurring invoices designed for contractors.

See a real invoice example

A B2B contractor invoice tied to a purchase order and project milestone — common for IT contractors, consultants, and trade subcontractors.

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How to Invoice as a Contractor

See a real invoice example

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