If you are filing married filing jointly, then you will enter your spouse's information on the same return/TurboTax account.
If you are filing married filing separately, then the spouse will need to fill out their own information in a separate TurboTax account.
Here is some more information about the two different statuses.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"