Hundreds of millions of euros are lying unclaimed by homeless charities.
The Government's Housing Finance Agency (HFA) claims that just five out of 13 charities registered as approved housing bodies, have applied to it for funding.
The current homeless problem has been labeled as a "national emergency" by Focus Ireland, but according to today's Sunday Times the charity still has not sought funding from the HFA, despite qualifying as an applicant earlier this year.
Chair of the Housing Finance Agency Michelle Norris, said: "Some of the subsidies they get from Government are a bit too complicated and the Government have moved to address that.
"The rest of the problem is that some of the organisations are very go-ahead and entrepreneurial and keen to use new sources of funding. Questions need to be raised with the organisations that are not drawing down the source of funding, about what they are planning to do.
"We need a really pro-active approach and we need to ask hard questions."