How do you check on IRS refund without knowing amount?

To check the status of your IRS refund without knowing the exact amount, you can use the IRS "Where's My Refund?" tool on their website. You'll need to provide your Social Security number, filing status, and the exact refund amount, but if you don't know the refund amount, you can still call the IRS directly at 1-800-829-1040 for assistance. Additionally, you can check your tax return confirmation email or documents for any details if needed.