Job Invoice Template - Australia

Yes, including your ABN is important for credibility and compliance. Even if you're below the $75,000 GST registration threshold, displaying your ABN helps clients trust your legitimacy and is required if you do invoice GST. If you're not registered for GST yet, you can include 'ABN applied for' temporarily, but registering strengthens your professional image. The Australian Taxation Office identifies businesses by ABN, so this field establishes your legal identity on all financial records.

Calculate GST by taking your total job cost and multiplying by 10%. If the job totals $1,000 before GST, add $100 GST for a final invoice of $1,100. For multiple service line items—labour, materials, subcontractors—apply 10% GST to the complete subtotal, not individual items. Include a clear subtotal line before GST so the client sees exactly what services cost before tax. Some items may be GST-exempt, so consult an accountant if offering specialized work.

For multi-day or complex jobs, progress invoices are standard practice. You can invoice at project milestones—after completing the first stage, upon material delivery, or at 50% completion. This ensures cash flow while the job continues and protects you against payment default. Send progress invoices with descriptions of work completed, clearly marked as 'Progress Invoice' so the client understands more work remains. The final invoice follows project completion and adjusts for any work variations.

Most Australian contractors use net 7 (payment due within 7 days) or net 14 (within 14 days) payment terms. For larger jobs or new clients, net 30 is common but increases payment risk. State payment terms clearly on the invoice with the exact due date. Include your payment details—bank account, accepted payment methods. Some contractors require a 50% deposit before starting major jobs, which you can specify upfront or on the initial invoice to protect cash flow.

Keep all job invoices for at least five years for tax and GST compliance. Store copies digitally and in hard copy when possible, as the ATO may request them during audits. Retain supporting documentation—quotes, variations, material receipts, timesheets. This backup documentation proves work was completed and matches what was invoiced, protecting you during payment disputes or tax inquiries. Organized records also simplify your accounting process and demonstrate professional business practices.

An Australian job invoice must include: your business name and ABN (if GST-registered), client name and ABN (if registered), invoice number and date, detailed description of work or services, quantity and unit rates, GST amount (if applicable), total due, and your payment details. For construction jobs, clients often require the site address, project dates, or contractor license numbers. Missing critical fields delays payment or creates compliance problems with clients' accounting systems.

Document any cost changes in writing before proceeding with extra work. Address this with an updated invoice, a separate variation invoice, or an additional progress invoice specifying the extra work. Clearly label it as 'Variation Invoice' or 'Additional Invoice' so the client understands it's not final payment. Communicate cost changes as soon as they're identified and obtain written approval if possible, then invoice accordingly. Avoiding surprises on the final bill reduces payment disputes.

Yes, separate line items for different services improve clarity. For example, list 'Electrical installation—labour' and 'Electrical installation—materials' with different rates. This breakdown helps clients understand costs and allows easier expense allocation to their accounting system. If charging hourly labour and materials at cost, separate items show this structure clearly. The subtotal remains unchanged, but transparency builds trust and reduces payment disputes with clients reviewing their invoices.