Sinn Féin would repeal and refund the property tax as a matter of priority if they ever get into Government in the Republic, he party said today.
It said it would refund the Property Tax paid in whatever year that happens.
Deputy leader Mary Lou McDonald said that the legislation to repeal the tax is written and ready to go.
"I can't give you a specific day on which this would happen," she said.
"But we're stating very clearly, and we're doing this very consciously because we know that for very many families across the State, this will be the straw that breaks the camel's back.
"This will be the thing that tips them from struggling to not coping, from debt into poverty.
"This is how serious this is."