Social Justice Ireland has proposed placing a tax on text messages and junk food.
The organisation has launched its pre-Budget submission today and is calling on the Government to reach its targets without hitting the vulnerable.
It also say its costings include a quarter of a billion euro for social housing.
Director of Social Justice Ireland Dr Sean Healy says this will make a huge difference.
"It would create housing, obviously, for people who are on waiting lists at the moment, and some of them have been on for four or five years, on waiting lists, and longer," he said.
"Secondly, it would help those who are long-term unemployed, many of whom have skills for the construction industry but haven't worked since the crash."