Here's who may still be eligible for up to $1.6 billion in stimulus checks

Thousands of Americans may still be owed a third government stimulus check — a payment of $1,400 per eligible taxpayer that was authorized by the American Rescue Act in 2021.

About 645,000 potentially eligible people hadn't gotten a third stimulus check by the middle of September 2021, according to a new report from the Treasury Department's Inspector General for Tax Administration. Some of those people received checks after September, but the report didn't identify how many of those taxpayers have received their payments since then. 

The amount of the unpaid stimulus checks isn't small, with the Treasury estimating the balance at $1.6 billion.