It's part of an effort to shift the voice debate away from politicians and into communities after federal parliament passed legislation to allow a referendum to take place.
The Yes 23 campaign will provide one-off grants of up to $15,000 to encourage further engagement and conversations about the importance of a successful referendum.
It's hoped the grants will assist regional and rural community groups to run 'yes' activities and forums.
Indigenous community organisations have also been encouraged to apply for financial assistance.
Yes 23 campaign director Dean Parkin said hundreds of community events supporting a 'yes' vote had already been held and the fund would support even more conversations across Australia.
"It is about ensuring people, no matter where they live, can get informed about how a voice will give Indigenous people a real say on how to fix unique challenges across areas such as health, housing and education," he said.
A JWS Research poll published on Friday showed support for the voice had slipped to 46 per cent, from 51 per cent in February. The 'no' vote was sitting at 43 per cent, from 36 per cent four months ago.
Prime Minister Anthony Albanese remains confident about the referendum's success and has confirmed a vote would be held in the final quarter of the year.
Opposition Leader Peter Dutton maintains Australians are not ready to vote for the voice, as proposed, because there are unanswered questions about how the voice advisory body will work.
But Yes 23 has been energised and humbled by the community engagement and support right across the country for the 'yes' movement, Mr Parkin said.
"It is all about supporting the conversation on constitutional recognition through a voice to parliament across the country from the big cities, to rural and regional Australia and everywhere in between, whether that be in Albany, Armidale or Aurukun," he said.
Thousands of 'yes' events are expected to be held between now and referendum day.
There are more than 100 active community-based 'yes' groups around the country, and almost 10,000 volunteers.
More than 500 organisations, including businesses, faith groups and sporting bodies, have already confirmed their support of the 'yes' campaign.
The voice to parliament will be able to advise parliament and the executive government on issues affecting Aboriginal and Torres Strait Islander people.
The referendum's success depends on majority support across the country and in four of six Australian states.
The question to be put in the referendum is: "A Proposed Law: to alter the Constitution to recognise the First Peoples of Australia by establishing an Aboriginal and Torres Strait Islander Voice. Do you approve this proposed alteration?
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