The Internal Revenue Service said Friday that one million taxpayers are set to receive about $2.4 billion in stimulus checks in the coming weeks.

The IRS says that over one million taxpayers may have missed out on the Recovery Rebate Credit (RRC) claimed on their 2021 tax returns.

The Internal Revenue Service, IRS, will mail checks worth up to $1,400 to taxpayers who did not claim their stimulus checks during the COVID-19 pandemic. Around one million U.S. taxpayers who were eligible for the check can expect a lump sum mailed to them during tax season.