Letter 6475 helps EIP recipients determine if they're eligible to claim the Recovery Rebate Credit on their 2021 tax year returns. We have provided sample letters that you can use to request waivers of several different types of IRS penalties.If you are receiving letters and notices from the IRS, contact our professional tax attorneys today. We can help you settle any outstanding tax debts. There are over 75 different letters and notices the IRS sends to taxpayers. Generally, they fall into five different categories. If you DIDN'T file a tax return:​​ Call the Taxpayer Protection Program hotline on your letter to tell us you didn't file a tax return. This page is designed to provide small business owners and entrepreneurs with information they need to start or grow their business. Let the IRS know of a disputed notice. Why do I need it for my business?