Personally, I think one way to handle funding is that current tax deductions might count in some form as coming 'from' basic income so if you were already makin

Personally, I think one way to handle funding is that current tax deductions might count in some form as coming 'from' basic income so if you were already making significant income, then maybe there would be no additional government expenditure. Negative income taxes (linked in other comments) is similar to this idea.