: If you are filing late to claim a refund, the deadline to receive 2016 refunds has passed. However, if you owe taxes, you must still file to stop the accumulation of interest and penalties.

: Because the 2016 software is no longer supported by Intuit, you cannot download the latest tax table updates or security patches. This may affect the accuracy of your final calculations.

: The IRS and state agencies no longer accept e-filed returns for the 2016 tax year. You must print, sign, and mail your return manually.