Free GST calculators and invoice templates by trade

Worked examples, typical line items, GST credits and common mistakes for each trade, checked against the ATO. Every page includes a working calculator or a printable invoice template.

Printable invoice templates (GST ready)

• Invoice template for electricians
• Invoice template for plumbers
• Invoice template for carpenters
• Invoice template for painters
• Invoice template for cleaners
• Invoice template for landscapers and gardeners
• Invoice template for photographers
• Invoice template for handymen and odd-job businesses

GST calculators with worked examples

• GST for electricians
• GST for plumbers
• GST for carpenters
• GST for painters
• GST for cleaners
• GST for landscapers and gardeners
• GST for photographers
• GST for rideshare drivers

Dates

• BAS due dates 2026-27 by state and territory
• BAS due date calculator

Articles

• How to chase an unpaid invoice in Australia: 5 polite email templates
• Tax invoice vs invoice in Australia
• BAS G1, 1A and 1B explained
• NZ GST return boxes explained

General information, not tax advice.