House of Assembly Fifty-Fourth Parliament, Second Session (54-2) 54 2 Parliament of South Australia House of Assembly published Estimates Replies Businesses with Taxable Payrolls Businesses with Taxable Payrolls The Hon. S.C. MULLIGHAN House of Assembly Lee Businesses with Taxable Payrolls In reply to the Hon. S.C. MULLIGHAN (Lee) (25 November 2020). (Estimates Committee B) The Hon. R.I. LUCAS House of Assembly Treasurer The Hon. R.I. LUCAS (Treasurer): I have been advised the following: The requirement to register and the rate of payroll tax is calculated using total Australian grouped wages, with South Australian payroll tax paid on the South Australian wages. There are currently 12,790 taxpayers liable for payroll tax in South Australia, due to their total Australian grouped payrolls being above $1.5 million. Of these, the total Australian grouped wages 7,724 taxpayers exceed $4 million.