Updated May 13, 2020 April 28, 2020 As a result of COVID-19, the due date to claim your refund for 2016 individual income tax returns has been postponed until July 15, 2020. To claim refunds for 2016, make sure your tax return is properly addressed, postmarked and mailed by July 15, 2020. For more information, visit the Coronavirus Tax Relief page of IRS.gov.