The IRS MeF and TaxSlayer Pro support year round electronic filing (e-file) for the current tax year and the two previous years. An exception applies for the IRS annual scheduled maintenance outage which generally begins in late November and lasts until January. During this time tax returns cannot be electronically filed for any tax year.
Supported electronic filing for 1040, 1120, 1120-S, 1065, 1041, 990 is as follows:
Beginning in January 2019, IRS MeF is supported for tax years 2018, 2017, and 2016.
Before e-filing any prior year returns, TaxSlayer Pro recommends that you download and install any available federal and state updates and apply them to the prior year return by entering and exiting the return to be e-filed.
To access prior year updates, from the main menu of the prior year program select Updates > Download/Install Updates. Select each update that is available to download and install and click on the Download button.
For information on configuring updates to download and install automatically when the program is opened, click here.