My husband and I filed separetly in 2017-I used turbo tax and he used a cpa. How do I manually add him to 2017 when working on my 2018?

[Ashby]

1. click Personal Info and proceed to the Your Personal Info Summary screen.
2. Scroll down to Your Filing Status and select the corresponding Edit button.
3. Check the Change my filing status checkbox, choose Married filing jointly, and select Continue.
4. Keep following any onscreen instructions until you return to the Your Personal Info Summary screen.
5. Click the Edit button next to your spouse's name and enter any missing information (date of birth, occupation, etc.)