You can find the CP or LTR number on the right corner of the letter. Letter 6475 helps EIP recipients determine if they're eligible to claim the Recovery Rebate Credit on their 2021 tax year returns.Fill out the "Reply to FTB" form included with your notice. A few "must knows" for taxpayers to learn before starting the Free File Fillable Forms program. The Individual Status Letter may be requested after the original due date of the return for the tax year in question. On March 1, 20XX, the Internal Revenue Service sent Letter 3611, Publication One and Form 4564, Information Document Request to ORG. Financial aid is available for degree-seeking students. For other filing options, view the File your taxes for free page. Get up-to-date refund information with Where's My Refund. Fill out the enclosed questionnaire and return it within 45 days.