Right now, the money they earn, if it's considered employment income for tax purposes, they can exempt up to $3,500 of this income. If they earn beyond $3,500, they will benefit from this enhancement.
If it's considered self-employment income, right now there is no exemption at all on it. This type of income doesn't qualify for the current $3,500 exemption. People with self-employment income will benefit from this exemption. It means they will be able to earn this additional money without seeing a reduction in their guaranteed income supplement.