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.You can find the CP or LTR number on the right corner of the letter. You can get in-person help at your local IRS Taxpayer Assistance Center. Call for an appointment after you find a Taxpayer Assistance Center near you. Vendor registration is free. The Where's my refund? Tool has the most up to date information available about a taxpayer's refund status. IRS Form 12153 is the official document taxpayers use to request a Collection Due Process (CDP) hearing or an equivalent hearing. On this page are descriptions of the various forms that landlords might encounter when participating in the HCV program.