Free tools for Australian sole traders

• GST calculator: add or remove 10% GST
• BAS due date calculator (FY2026-27, quarterly)
• Invoice reminder email generator (Australia)

Guides

• How to chase an unpaid invoice in Australia: 5 polite email templates
• Tax invoice vs invoice in Australia: what must be on it
• BAS G1, 1A and 1B explained, with FY2026-27 due dates
• NZ GST return (GST101A) boxes 5 to 15 explained
• Build an invoice reminder workflow in n8n with Google Sheets

Free downloads

• 5 payment reminder email templates (PDF)
• BAS quarter checklist (PDF)

Paid templates

• GST & BAS Workbook FY2026-27 · Tradie edition
• AU Invoice Chaser for n8n (automatic payment reminders from a Google Sheet)
• Sole Trader Admin Kit (workbook + invoice chaser bundle)
• Speed-to-Lead pack for n8n
• New Zealand: NZ GST Workbook 2026-27 · NZ Invoice Chaser for n8n

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