Procedure & Administration
The IRS CP 89, Annual Installment Agreement Statement , is not a "bill." If the taxpayer has entered into an installment agreement to make monthly payments for past due tax liabilities or has paid off the liability in the last 12 months, he or she will receive this notice.
Regs. Sec. 301.6159-1(i) requires the IRS to send every taxpayer on an installment agreement an annual statement that identifies the balance owed at the beginning of the year, the payments made during the year, and the remaining balance at the end of the year. Congress believed that taxpayers who entered into an installment agreement should be kept informed of amounts applied to the outstanding tax liability and amounts remaining due (S. Rep't No. 105-174, 105th Cong., 2d Sess., p. 98 (April 22, 1998)).