Because the IRS continues to work through backlogs, the normal processing time of up to 16 weeks for a 1040-X submitted on paper also applies to a 1040-X submitted electronically. Taxpayers can still file a paper version of the 1040-X and should follow the instructions for preparing and submitting the paper form. Taxpayers filing their 1040-X electronically can use the Where's My Amended Return? online tool to check the status of their amended return. For more details, see the IRS 1040-X news release.