Should questions pertaining to tax law be asked here or on money SE? I guess questions for businesses should be asked here, but I am unsure regarding questions about individuals facing taxes.
I think if an accountant could answer the question, money.SE probably has more expertise than here.
If it's more a question within the scope of administrative law or statutory/regulatory interpretation, deference, etc. this site would have more expertise. As far as I can tell, we don't have any tax law specialists here.
It's a hard line to draw without first seeing the specific question.