4a317c29_lian_Broadcasting_Corporation___Definition
[Term] Debt Levy [Definition] 
The debt levy has been proposed as a possible means for the government to pay back the budget surplus, and is expected to hit people earning more than $80,000 or $180,000 a year, taking an extra 1 per cent of their annual income. The Government, including Prime Minister Tony Abbott, is claiming it does not constitute a broken promise, as the levy will not be permanent (and so is different from a tax), but widespread polling indicates this won't wash with the public.
Budget 2014: Deficit tax may raise a lot less than Treasury forecasts says analyst - ABC News (Australian Broadcasting Corporation)
Definition