NSW Premier Mike Baird says he will be forced to consider dramatic increases in state taxes including stamp duty and payroll tax unless all Australian governments can agree to raise the GST rate.

The comments increase the pressure on state and territory leaders to reach a breakthrough agreement on GST reform to meet a looming rise in healthcare costs.

Mr Baird proposed to all state and federal leaders this week that the GST be raised from 10 per cent to 15 with compensation for low-income earners to cover an estimated $35 billion national health funding shortfall by 2030.

Asked if he would have to raise state taxes if his GST proposal failed, he said: "Of course we'd have to look at options if there isn't a consensus. Everyone would."