my husband and I received our SSD this past year and neither of us have worked any in the past year,however we have used savings to help support our disabled son and 2 grandchildren.Can we file a return to claim them as deductions?

it depends; each dependent reduces your taxable income by $3,950. Even if you have no earned income, i.e., salary wages, commissions or etc,you can still claim the exemptions, as long as you pay income tax on the money you received. If not , no. I mean unless you you have earned income, you need to check whether you need to file at all. Some forms of unearned income aren't taxable: If the money you live on comes out of Social Security benefits, your taxable income could be so low you don't have to file a return. then, there's no benefit to claiming dependent exemptions as you won't be paying any money to the IRS.