Budget: Single parents to lose 15% of disposable income

SINGLE parents and low-income couples with children could lose as much as 15% of their disposable income under the full impact of the Abbott government's first budget.

The findings were released in new modelling by the University of Canberra's National Centre for Social and Economic Modelling on Tuesday.

It says cuts across family tax benefits, welfare payments and the end of some smaller benefits would cut some 47.5 billion from the federal budget from July next year.

The study showed the cuts could affect as many as 1.2 million families, NATSEM research fellow Ben Phillips told ABC.

Mr Phillips said those families could be on average $3000 a year worse off by 2017-18, while high-income earners would feel virtually no impact.