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In any job management system built for Australia, GST cannot be an afterthought you bolt on at invoice time. It belongs on every line item, calculated the same way every time, with your ABN where the ATO expects it. Chippie builds it in.
GST is automatic
For GST-registered Australian businesses, every line-item quote and invoice calculates and shows GST automatically, and your ABN appears on the invoice. You set your GST registration once in business settings, then stop thinking about the arithmetic.
Per-item GST-free toggles
Not everything you bill carries GST. Individual line items can be marked GST-free, and the totals handle the mix correctly, which matters on jobs where materials, labour and GST-free items sit on one invoice.
Watching your quarterly position
The built-in BAS reporting dashboard shows your real-time quarterly GST position and a BAS-readiness score, so quarter-end is a check rather than a scramble. Lodgement itself still goes through your accountant; Chippie's job is making sure the numbers they get are right.
UK and Ireland
Businesses in the UK and Ireland get VAT handling at their local rates instead, including reduced-rate overrides such as Irish construction at 13.5%.
Common questions
I am not GST registered yet. What happens?
Quotes and invoices simply go out without GST. When you register (required once turnover passes $75,000), switch it on in settings and everything after calculates GST. The free GST calculator and GST guide cover the rules.
Does Chippie lodge my BAS?
No. Chippie keeps your GST position accurate and visible; lodgement goes through your accountant. Never let software you have not verified lodge for you.
Where does my ABN come from?
Business settings. Set it once and it appears on every invoice.