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 April 15, 2020.

Deadlines by Return Type and Tax Year

Tax Year
Return Type
Due Date
2019
April 15, 2020 - efileIT now - optional: plus your state return. Details.
2010
IRS Tax Refund Date - DATEucator
April 15 and Oct. 15, 2020 - Estimate your Tax Refund Date
2019
April 15, 2020 - efileIT - Available on efile.com mid/late March. Details.
2019
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
April 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
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
Mail in Forms only. Cannot be e-Filed with most states. Varies by State. Details.
Back Taxes
You can no longer e-file back taxes. Complete, sign, download, print and mail in Forms only. Details.
Back Taxes
No longer available
Back Taxes
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
Can no longer be e-Filed. Mail in Forms only. Varies by State; visit your State page.
Previous Tax Years
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
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