Income Tax Return Deadlines, Forms Important: You can no longer eFile IRS back taxes (prior 2019) or State Tax Return. Mail-in instructions are below. Prepare and eFile your 2019 Tax Return or Tax Extension by July 15, 2020. View a more comprehensive Tax Year 2019 deadline listing Deadlines by Return Type and Tax Year Tax Year Return Type Due Date 2019 IRS Income Tax Returns July 15, 2020 - eFileIT now - plus state return(s). As of March 17, 2020 only the deadline to pay IRS taxes owed for 2019 Tax Returns has been extended or postponed to July 15, 2020. Thus, the filing deadline of April 15, 2020 has not changed. Should anything change, we will update this here. Details. 2020 IRS Tax Refund Date - DATEucator July 15 and Oct. 15, 2020 - Estimate your Tax Refund Date 2019 IRS Tax Extension July 15, 2020 - eFileIT - Available on efile.com mid/late March. Details. 2019 IRS Tax Amendment Now. IRS does not enable e-File. If you used eFile.com for your tax return, you can complete an amendment on eFile.com. Otherwise, complete, sign, download and mail in Form 1040X. Details. 2019 State Income Tax Returns Most on July 15, 2020 - eFileIT now with your Federal Return. State Deadlines vary by State. Optional: Prepare a state only return on efile.com - download, sign, and mail in your state forms. Details. 2019 State Tax Extensions Varies by State. Some states grant automatic extension with federal extension, others have no extension deadline, but require tax payments if you owe. Details. 2019 State Tax Amendments Mail in Forms only. Cannot be e-Filed with most states. Varies by State. Details. 2019 2020 Insurance Marketplace Health Insurance Marketplace Enrollment Deadlines for 2019 and 2020 Back Taxes IRS Income Tax Returns You can no longer e-file back taxes. Complete, sign, download, print and mail in Forms only. Details. Back Taxes IRS Tax Extension No longer available Back Taxes IRS Tax Amendment As soon as possible if you owe taxes. Mail in Forms only. If you expect a Tax Refund, you must file by Dec. 31, 2020, otherwise your refund will expire. If you owe Taxes, there is no deadline, but penalties. Estimate Penalties. Back Taxes State Taxes Can no longer be e-Filed. Mail in Forms only. Varies by State; visit your State page. Previous Tax Years IRS Taxes As soon as possible if you owe taxes. Mail in Forms only; eFilee deadline expired. If you expect a Tax Refund, you have three years after the subject Tax Year to claim it; after that it expires. If you owe taxes, complete and mail in the income tax return forms as soon as possible to avoid further late filing and/or payment penalties. Estimate Penalties. Previous Tax Years State Taxes File as soon as possible. Complete, sign, download and mail in the Forms only. eFile option has expired for back taxes. Visit your State page for details. Back Taxes, Previous Year Tax Forms, Calculators, Payments, Penalties IRS or Federal Tax Forms for Tax Years 2018 - 2004 IRS Tax Calculators, Estimators for Tax Years 2018 - 2004 How to pay Taxes if you don't have the funds PENALucator: Late Filing and late Payment Penalty Estimator, Calculator 1) TurboTax® is a registered trademark of Intuit, Inc.