Five unions are attempting to take the Government to court, over pay equity changes

The nurses organisation, Public Service Association, and three education unions are lodging a High Court challenge later this month, over the Government raising the threshold to lodge pay equity claims.

PSA national secretary Fleur Fitzsimons says they're asking for a declaration of inconsistency, with the Bill of Rights act.

She says if they get that, there'll be a report to Parliament and it will be considered by a Select Committee.