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). IRS Form 433D allows you to make monthly payments toward your tax debt instead of paying everything at once.This document is an Installment Agreement Request form for the Internal Revenue Service. Letter 6475 helps EIP recipients determine if they're eligible to claim the Recovery Rebate Credit on their 2021 tax year returns. All of the forms listed below are in Adobe Acrobat PDF (PDF) format. 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. 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. ⇒ Completed Form 9465 (Installment Agreement Request) or applied for Installment Agreement online. ⇒ Filed all past tax returns. The landlord does not fill out this form.