This is the final notice that you have a balance due on a tax account.
The IRS has previously sent the taxpayer notices about a balance due on a tax account. This urgent notice alerts you that there is an outstanding balance and the IRS intends to levy or take your state tax refunds.
Sections of the Notice:
Sample CP 504: PDF Pages 1-4
Note that any link in the information above is updated each year automatically and will take you to the most recent version of the document at the time it is accessed.