The CARES Act includes favorable changes to the rules for deducting net operating losses (NOLs) to provide businesses with relief from the novel coronavirus (COVID-19) crisis. It permanently eases the taxable income limitation on deductions. For tax years beginning before 2021, the CARES Act removes a taxable income limitation on deductions for prior-year NOLs carried over into those years. So NOL carryovers into tax years beginning before 2021 can be used to fully offset taxable income for those years. These changes may affect prior tax years for which you’ve already filed tax returns. To benefit from the changes, you may need to file an amended tax return.