Into it enter the address on a 1099-1 int form and it doesn't have an address because it is for the Department of Treasury what do I do

Delete that 1099 and manually enter one with just the name IRS and put the interest amount in box 1.  You don't need to enter all that info on the form.

Or you can just enter anything in the street box.  It's not important.

Enter interest from the IRS like a 1099Int and put the amount in box 1.  Enter it manually and just enter IRS for the payer.  Don't enter any other info like the address or a EIN.

Enter a 1099-Int  under

Federal on left

Wages & Income at top

Interest and Dividends

Interest on 1099INT - Click the Start or Revisit button

for 1099-int and 1099-div and certain other 1099's the entry of the address is not needed.