After you file

Oh no.  You cannot "fix" the year.  You have used the online program that is ONLY for 2018 to prepare a 2017 return.  That is a HUGE mistake.  You cannot file it.  You need to clear it out.  

https://ttlc.intuit.com/questions/2586254-how-do-i-clear-and-start-over

 

Each tax year has software written for the specific tax laws in effect for the tax year.  You cannot use a different year's software for your 2017 return.  The software years cannot be changed or updated.  You can ONLY use 2017 software.

 

Online preparation and e-filing for 2017 is permanently closed.

To file a return for a prior tax year

If you need to prepare a return for 2015, 2016, or 2017 you can purchase and download desktop software to do it, then print, sign,  and mail the return(s)

https://turbotax.intuit.com/personal-taxes/past-years-products/

Remember to prepare your state return as well—if you live in a state that has a state income tax.

When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s.  Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS/state received the return.

Note:  The desktop software you need to prepare the prior year return must be installed/downloaded to a full PC or Mac.  It cannot be used on a mobile device.

**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**