About
SmartCalc is a small set of calculators built specifically around Australian rules.
SmartCalc is a set of 17 free, Australia-specific calculators covering tax, super, employment and property: GST, income tax, super guarantee and balance projection, HECS-HELP, novated lease and car FBT, stamp duty and land tax across all 8 states and territories, capital gains tax, the Medicare levy surcharge, redundancy pay and ETP tax, long service leave and notice periods, Division 293, the First Home Super Saver Scheme, and rental yield with negative gearing. Each tool is built around current Australian rules rather than being a generic global calculator with a currency dropdown.
SmartCalc doesn't have referral, commission, or affiliate relationships with any bank, lender, mortgage broker, novated lease provider, or super fund. That matters here specifically because several of these calculators sit in categories where most of the free tools online are built by a broker or lender to generate a lead, not to give a neutral answer. SmartCalc's calculators are built to be accurate first, without an incentive to nudge the result toward a product sale.
Every figure on this site is sourced directly from primary legislation and the relevant regulator, not from secondary blogs or aggregator sites: the Australian Taxation Office (ato.gov.au) for GST, income tax, super, FBT, HECS-HELP, CGT, ETP and redundancy tax, Division 293, the FHSSS, and the Medicare levy surcharge; the Fair Work Ombudsman (fairwork.gov.au) for redundancy pay and notice periods; ASIC and MoneySmart (moneysmart.gov.au) for the standard assumptions behind the super balance projection calculator, in line with ASIC Regulatory Guide 276; and each state or territory's own revenue office or long service leave legislation for stamp duty and land tax, since both genuinely vary state by state rather than following one national rule. Where a figure is an approximation (for example, a tapered concession band, or an assumption-based projection), the relevant calculator says so explicitly, names the primary source, and links to it directly wherever practical.
Rates, thresholds and legislation referenced across SmartCalc's calculators were last verified against primary sources on 4 September 2026. Most figures are re-indexed annually (commonly 1 July), and some, like the quarterly shortfall interest charge rate used in the FHSSS calculator, change more often than that. If you spot a figure that looks out of date, tell us using the contact details below and we'll check it.
All 17 calculators above are live now, each with reference pages and FAQ content built to the same standard: current rules, checked against primary sources, no clutter, and no receipt-style branding gimmicks that get in the way of the number you came for.
SmartCalc is an independent Australian-owned calculator website operated in Queensland, Australia. For questions, corrections, or to report an issue with a calculation, contact contact@smartcalc.com.au.