Last week, The Age reported that the State Government was set to delay when the growth areas infrastructure contribution (GAIC) was payable. The proposed tax was to apply retrospectively from last December.

Taxed Out chairman Michael Hocking has argued that the timing would cause hardship to affected landowners in Clyde and Devon Meadows, who would not see a windfall from the proposed extension of the urban growth boundary for up to 15 years.

"We will continue to push for the tax to be payable when a planning permit for development is granted, thus making the tax payable by whoever develops the land rather than by landowners.

"If the GAIC is payable when a planning permit for development is granted, the responsibility for paying the tax rests with whoever develops the land and so the tax is triggered willingly."

Meanwhile, Casey councillors last week approved a submission to the Government for the tax to apply at the point of development and not to current landowners.