Prime Minister Scott Morrison has angrily dismissed claims money meant for the National Disability Insurance Scheme will be redirected to a drought fund.
The federal government will inject $3.9 billion into the Future Drought Fund from 2020, with the total kitty expected to rise to $5 billion by 2028.
The initial investment comes from money earmarked for the NDIS, but Mr Morrison insists the move won't leave the scheme short.
"This lie that somehow the NDIS is being taken from to support our farmers is rubbish," Mr Morrison told reporters in Geelong on Monday.
"I think it has created needless anxiety amongst parents of families with children and with others who live with children with disabilities."
The prime minister said the government's strong economy and budget management allowed the drought fund, which will release $100 million a year from its start date, to be created.
"The NDIS is 100 per cent fully funded. Every last dollar, every last cent," Mr Morrison said.
"The suggestion that somehow we're taking from disabled children to support our farmers is shameful."
The $3.9 billion was originally set down for the Building Australia Fund, an infrastructure program created by the Rudd government a decade ago.
