It's that time of year again. Monday, Jan. 24 marks the first day U.S. taxpayers can file their 2021 federal returns, and if you're anticipating a refund, don't wait until they're due on April 18 to do so. You will want to get a jump on filing as soon as you can this year.

Typically, the IRS aims to send refunds within 21 days of filing electronically and within six weeks for returns filed by mail. But the agency is already warning that this tax season will be a hectic one, with all of the Covid-19-related tax changes like the stimulus checks and enhanced child tax credit payments.