Sole Trader Invoice & GST Threshold Tracker (AU) - Not GST Registered - Excel & Google Sheets

Not registered for GST yet? Send proper invoices with your ABN and no GST, see who owes you, and know months ahead whether you're heading for the A$75,000 GST threshold.

What's inside

- Printable invoice. Pick an invoice number and it fills in your business details, ABN, client, dates, up to 20 line items, total and payment details. Titled INVOICE (not "tax invoice") with "No GST has been charged" printed on it. Print A4 or save as PDF.

- Income Register. Every invoice and cash sale in one place. Due dates from your payment terms (or each client's own terms). Status: PAID, PART PAID, UNPAID, DUE SOON or OVERDUE (with days). Flags duplicate invoice numbers.

- GST Threshold monitor. 36 months. For each month: current GST turnover (that month + previous 11), projected GST turnover (that month + next 11, using your estimates), headroom, and UNDER / WATCH / REGISTER - within 21 days. Sales of business assets count in current turnover but are left out of projected turnover, as the ATO says.

- ABN check. Tests your ABN and your clients' ABNs against the official check-digit rule, so a typo shows up before the invoice goes out.

- Summary (one A4 page). Threshold status, this financial year's income and payments, total owing, overdue and due-soon amounts.

- Printable templates (PDF): blank invoice to fill by hand, monthly GST turnover worksheet, invoice & payment log.

- Guide (PDF) with the ATO and business.gov.au rules it's built on, with sources.

- BLANK and EXAMPLE files (a made-up Brisbane garden-care sole trader).

Good to know

- Built on ATO guidance checked 4 Nov 2026: not registered for GST means no "tax invoice" and no GST; register within 21 days once current or projected GST turnover reaches $75,000; quote your ABN or business payers generally withhold 47% from payments over $75.

- Rideshare and taxi drivers must register for GST regardless of turnover, so this tracker isn't for them.

- Already registered for GST? You need a BAS tracker instead.

- Works in Excel and Google Sheets. No macros. AUD, prints A4. Holds 100 clients, 300 invoices/sales and 500 invoice lines.

- The ABN check only tests the format. Confirm an ABN is active on ABN Lookup.

- It doesn't lodge anything, connect to your bank or email invoices. Record-keeping aid, not tax advice.

Digital download (zip).