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. You can request a payment plan.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). If you can't pay the full amount you owe, you can ask to make monthly installment payments. 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. This article discusses five methods that can be used to file Form 9465 as well as what states have an installment agreement request form in Drake Tax.