Question: how do i find out how much i owe in past taxes?
Answer: If you're an individual taxpayer looking into your balance, you can call the IRS at 1-800-829-1040 between 7:00 a.m. and 7 p.m. local time. Representing a business? Call the IRS at 1-800-829-4933 instead between 7:00 a.m. to 7:00 p.m. local time.