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Australia Calculators
Free calculators built for Australia: a stud wall frame calculator for timber framing, income tax, superannuation, GST, car FBT and redundancy pay, plus seller and marketplace fees for eBay, PayPal, Amazon, Etsy and more. All in Australian dollars, updated for 2026. Fast, mobile-friendly, and no sign-up.
Marketplace selling fees
Payment & processor fees
Auto auction fees
Home & Building
Why Australians use these calculators
Australian money and work rules have their own quirks: a progressive income tax scale plus a separate Medicare levy, compulsory superannuation that compounds for decades, a flat 10% GST on most purchases, fringe benefits tax on salary-packaged cars, and a statutory redundancy pay scale under the NES. On the selling side, every marketplace and payment platform takes a cut, a final value fee, a listing fee, payment processing, GST on those fees, and optional promotion costs, before you subtract what the item cost you.
Each tool is updated for 2026 Australian rates and thresholds, works on any device, and lets you edit every input so you can match your exact numbers. Nothing is stored and there's no sign-up.
Popular questions
What Australian calculators are here?
Income tax, superannuation, GST, car FBT, redundancy pay, and seller/marketplace fee calculators, all in Australian dollars.
Which Australian platform is cheapest?
Payment processors like Stripe (1.7% + A$0.30 domestic) are usually cheaper than full marketplaces such as eBay.com.au or Etsy, which add listing and final value fees on top of processing.
Do the tools handle GST?
Yes, both as a standalone 10% GST calculator and built into the seller fee tools where platforms charge GST on fees.
Are the 2026 figures exact?
They're current published Australian rates for planning and are editable in every calculator.
Are these tools free?
Yes, completely free with no sign-up and nothing stored.