Please see this information on what AGI to use after you have filed or your tax return has been rejected:
- Filed with your spouse last year—you and your spouse have the same 2016 AGI. (Don’t split the AGI amount or enter “0” for one of you.)
https://ttlc.intuit.com/replies/5595742
Here is additional information on where to locate your AGI:
https://ttlc.intuit.com/replies/3301618