Because you filed jointly, you should use the exact same AGI amount for you and your spouse.
Your AGI can be found on your 2017 Tax Return:
If you filed a:
- 2017 Form
1040: your AGI can be found on line 37
- 2017 Form
1040A: your AGI can be found on line 21
- 2017 Form
1040 EZ: your AGI can be found on line 4
