Turbotax 2017 states my number it even uses that number for I.D. Purposes. But inputting it in 2018 form states not correct. How can that be ? Super confused at how same company info can be wrong. And company wants me to spend more money dor them to research the issue. Issue is company wants more money so they make it so you have to upgrade.
What exactly are you doing in regards to 2017 AGI? Are you trying to efile a 2018 return and got an efile rejection notice? If an efiled return is rejected for 2017 AGI reasons, it is the IRS that is doing the rejecting.
When did you file the 2017 return? If you filed it real late, such as November 2018 or later, then use an AGI of 0.
Otherwise, be sure you are using the 2017 AGI from the original 2017 return, not an amended one.
If a joint return, both spouses use the same total AGI. Do not split it.
If all else fails, then before giving up and mailing the return, try efiling with an AGI of 0 anyway. We have seen it occasionally work, even when there's not a good explanation.
See this TurboTax support FAQ for last year's AGI - https://ttlc.intuit.com/community/agi/help/how-do-i-find-last-year-s-agi/01/25947
To access your current or prior year online tax returns sign onto the TurboTax website with the userID you used to create the account - https://myturbotax.intuit.com/
Scroll down to the bottom of the screen and on the section Your tax returns & documents click on Show. Click on the Year and Click on View adjusted gross income (AGI)
If you filed the 2017 tax return late in the year (November 2018 or later) then enter a 0 (zero) for the 2017 AGI.
If the tax return continues to be rejected by the IRS for the 2017 AGI then you only other option is to print and mail the tax return.
See this TurboTax support FAQ for the procedure to print a tax return for mailing when using the online editions - https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online/01/26258