Use Form 9465 to request a monthly installment agreement (payment plan) if you can't pay the full amount you owe shown on your tax return. Complete and sign this page.Mail it to: FRANCHISE TAX BOARD, PO BOX 2952, SACRAMENTO CA 95812-2952. The IRS Online Payment Agreement system lets you apply and receive approval for a payment plan to pay off your balance over time. If you can't pay the full amount you owe, you can ask to make monthly installment payments. You'll receive an acceptance letter in the mail with payment details. If you owe the IRS but can't afford the amount, an installment agreement could be the solution. Learn how to request one with IRS Form 9465. You may require a long-term payment plan, such as a non-streamlined installment agreement. He lived with the unrelenting anxiety of the IRS finding out and taking the little money he had to live on.