To ring in the New Year, CNBC Select is posting a new money challenge each day for the first week of 2021. Think of these tasks as your financial deep clean, based on expert advice, to help you ...

(NEXSTAR) — The IRS says an estimated $1 billion in tax refunds from the 2021 tax year may become the property of the U.S. Treasury if over 1.1 million Americans don’t take action soon.