Employees of the Internal Revenue Service (IRS) returned to work just in time for the 2019 tax-filing season to begin. By mid-day Monday, several million tax returns had already been received for processing, and the IRS expects about 150 million individual tax returns by the April 15th deadline. As a reminder, a new Form 1040 is being used for tax year 2018. Details about this change and other information for the 2019 federal filing season can be found here.