More stimulus checks are on the way in the mail. 2 ways to track yours through USPS This free and easy-to-use tool can show you when your stimulus payment is on the way to your mailbox. Here's what to look for so you don't throw it away. Listen - 04:34 Stimulus check or junk mail? Know what to look for so you don't toss your new payment in the trash. Angela Lang/CNET Your third stimulus payment of up to $1,400 per person could be arriving in the mail soon: The IRS said it's sending out 2 million paper checks to eligible Americans this week. But you don't want to accidentally throw yours away. We'll tell you what to look for, as well as how to track your money through the mail using a free service offered by the USPS.