You should be able to enter each spouse's individual AGI separately. To get back to this entry and correct your last year's AGI:
- Open your return
- Select the File tab
- Continue until you reach the screen that says To continue, select options below
- Enter your corrected AGI in Enter last year's AGI here
- Select Continue and follow the screens until you've re-transmitted your return
Please reach out again if your problem continues. See the images below for you reference:


