Ber Grogan, Executive Director at the Simon Communities of Ireland, said the budget doesn't effectively address the problem.
Just two properties were available to rent with the Housing Assistance Payment in Kildare last month.
The Simon Communities latest Locked Out report shows a single home was on offer on Daft.ie in Dublin City.
It says thousands will continue to experience the trauma of homelessness unless developers and landlords are obliged to offer social and affordable housing.
Ber Grogan, Executive Director at the Simon Communities of Ireland, says the budget doesn't effectively address the problem.

Water Outage In Place For Maynooth And Straffan Tomorrow
Kfm Obituary Notices
Nationwide Fuel Protest Continues Into Third Day
"I Don't Think Anybody Is Going To Really Listen To Us Until Somebody Dies On That Road": Criticism Of Moone-Timolin Cycleway Continues
International Wholesale Prices Are "Not Price Gouging", Says CCPC
Costs Of Home Heating Oil Up By 67.5 Per Cent Between February and March
91-Year-Old Lelia Doolan To Arrive In Monasterevin Today As Part Of Her Walk For Peace
Over €400,000 Awarded To Repair And Protect Three Kildare Heritage Structures