If you enroll spouses card, is it necessary to tell the company that the card is in your spouses name?
I might set up a spouse as a separate client with a separate email and separate cards, for two reasons. First, if we were also doing bank bonuses, it would be helpful to have two different paychecks from the company to more easily facilitate getting multiple bank bonuses at a time. And second, just because I view it as cleaner somehow - it makes things line up with the tradeline company the way things actually are, and it doesn't misrepresent to the tradeline company whose card it actually is.
But as a practical matter, if you're sharing finances, I think it would work just fine. I can't think of a reason it wouldn't.
Actually, now that I think about it, there are a couple of minor practical snags to consider:
First, if you get the email to add an AU on your spouse's card and they have to call in to add the AU, then you'd have to coordinate that handoff with your spouse. Sometimes their can be tight timeframes to add AUs, and if you're busy or don't share an email or aren't otherwise able to coordinate the handoff (and hand-back to mark the AU as added) then that could occasionally create minor issues and perhaps even a situation where you're not able to add the AU in time, which is generally not good for anyone.
Second, from a tax perspective, if you're using your piggybacking income to contribute to a retirement plan, then the income and the retirement plan both have to be in your name. This could affect you in situations where you're claiming the retirement savings tax credit because there is a per-spouse limit and spouses' contributions are treated individually. Or if you want to max everything out, then having that income in just your name could hamper that goal, but that is probably only in extreme scenarios.
HTH.