Free tools

Every calculator
a tradie needs.

No signup. No app download. Free to use right here. Built for Australian tradies, contractors, and small businesses.

4.9 App Store

7 tools · Free to use · No account required

GST Calculator

Add or remove 10% GST instantly. Enter any price, get ex-GST, GST amount, and inc-GST total.

Build a real ATO-compliant tax invoice in your browser. No login, no download.

Build a professional GST quote right now. Add line items, see live preview, send it.

See exactly what to charge for any job. Materials + labour + overhead + margin, calculated instantly.

Download a free ATO-compliant invoice template. Works in Word, Excel, or PDF.

Work out your minimum and recommended hourly rate based on your actual income goal and costs.

Calculate exactly how many days overdue and how much interest has accrued on an unpaid invoice.

SMASH Invoices

SMASH calculates GST, applies your rates, and sends a professional invoice before you leave the job site. Free to start.

4.9 App Store

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