This is the first reminder notice that you have a balance due on a tax account.
The IRS has previously sent a notice about a balance due on a tax account. This reminder notice alerts you that there is an outstanding balance and, if not paid within 10 days, the possible actions the IRS may take.
Sections of the Notice:
Sample CP 501: 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.