Are you asking about how to prepare your return together with your wife?
If you'd like to prepare your wife's return using TurboTax Self-Employed, when you choose to prepare your returns together you'll also be preparing your return in TurboTax Self-Employed. The cost of the second return is just $19.99 and TurboTax will customize your interview based on your Tax Profile. So, just because you're in TurboTax Self-Employed because it's right for your wife, you won't get asked a bunch of self-employment questions when you're working on your return.