You still have to pay taxes on that $5000 if you file together or not. if you don't file as joint only one of you can claim the kids. if you did file jointly, chances are you would owe, regardless how much he was going to get back.
you would save more in taxes filing jointly, but if you did file jointly, your husband would be owing and not getting a refund.
i guess it depends on how separate the two of you keep your finances.


