If this is in the course of your preparation, numbers change as you enter income.
If this is after you filed, you need to check on garnishment.
To see if IRS will keep your refund for student loans or other debt, call (800) 304-3107, for the US Treasury's Bureau of Fiscal Services.
For IRS debt, call the FMS at 1-800-304-3107 to find out if your refund was reduced because of an offset.
Call the IRS Taxpayer Advocate Service at 1-877-777-4778 (or visit www.irs.gov/advocate) if you feel your refund was reduced in error. The service is free.