Use Form 9465 to request a monthly installment plan if you cannot pay the full amount you owe shown on your tax return (or on a notice we sent you). The 9465 form is rather short and only requires your personal information, the name and addresses of your bank and employer, the amount of tax you owe.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. I've Been making payments manually for IRS installment plan (and never missed one) but certified letter coming in today's mail from IRS? Need to request installment payments with the IRS? Check out our quick guide for filing IRS Form 9465, Installment Agreement Request. The IRS Online Payment Agreement system lets you apply and receive approval for a payment plan to pay off your balance over time. Florida State Disbursement Unit 1-877-769-0251 am to 6 pm EST, Monday-Friday. How to Complete Form 9465? The IRS automatically identifies taxpayers located in the covered disaster area and applies filing and payment relief.