Updated: Aug 5
Make your check payable to the "United States Treasury".
Write your Social Security number , ITIN (Tax ID), tax year, and the memo line of the check eg "2021 Tax return"
Mail your check to the appropriate address as indicated on the IRS website or on the letter you received
It's important to note that checks are just one of several payment options available to taxpayers. The IRS also accepts electronic payments, credit card payments, and even cash (although cash payments must be made in person at a participating retail partner). Be sure to explore all payment options and choose the one that works best for you.