Councillors voted to offer Mr Jardine an additional five-year term of employment on April 5.
Stirling corporate services director Ed Herne said Mr Jardine’s remuneration had not changed since 2014.
“The base salary of $325,379 has remained unchanged since July 2014, which was also the last occasion when the chief executive received a bonus payment,” he said.
In 2014, the Stirling Times reported the chief executive earned $21,992 above the recommended amount due to a clause in the Salaries and Allowances Act.
Chief executives from the cities of Stirling, Wanneroo and Cockburn, and Town of Claremont were exempt from the Salaries and Allowances Tribunal salary bands because they were appointed to the positions before October 19, 2011.
Mr Jardine was appointed as Stirling chief executive in 2007.
Mayor Giovanni Italiano said extending Mr Jardine’s contract was important for strong leadership and stability at the City.
Mr Jardine said he was “delighted” to lead the City through “exciting times”.
“I look forward to maintaining a high level of facilities and services for the community that sets us apart from other local governments,” he said.
The City would not confirm details of additional allowances, including the cost of a corporate car.