Invoicing, payment and GST resources

Start with the task you need to complete. These introductory guides include examples and official references.

How to track partial invoice payments

Record multiple receipts against one invoice, calculate the remaining balance and check it before following up.

Check the invoice details, numbering and tax breakdown before sending it to your customer.

Understand the basic difference between intra-state and inter-state supplies.

Organise invoices, payments and supporting documents for your accountant.

Understand each document's role and keep shared proforma revisions clear.

Examples for upcoming, overdue and partially paid invoices, with checks before you send.

Use our free GST calculator to add or remove GST from an amount.

Keep shared versions, document scope and price changes, and confirm the revision your customer accepted.

Download an Excel workbook for partial payments, outstanding balances, overdue days and follow-up dates.

Edit an invoice preparation worksheet or monthly records checklist directly on the website, then print or save a PDF.

Read how these guides are prepared. For transaction-specific advice, consult a qualified professional.