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.

The Recovery Rebate Credit was available to taxpayers who did not receive one or more stimulus payments during the COVID-19 pandemic.

The Internal Revenue Service is sending unclaimed stimulus checks of up to $1,400 to 1 million US taxpayers in the coming weeks. Here’s why the payments are going out — and how to find out if you’re eligible for the credit: