If you and your spouse both file married filing separately, you can be claimed as a dependent by a parent. You cannot be claimed as a dependent if you file a joint return with your spouse. When you prepare your own return, you will need to indicate in MY INFO that someone else can claim you as a dependent.
Not sure what you mean by "tuition remission"----if a parent claims you, your parent can get education credit--such as the American Opportunity Tax Credit. YOU do not get any sort of education credit as a dependent---only the person who claims you as a dependent is eligible for an education credit. Your parent(s) would get the education credit if they claim you. And be aware of the other limitations of filing married filing separately. If your spouse was a student, or if he paid interest on student loans, he will not be eligible for any education credits when he files married filing separately.
There are other credits you cannot get when you file married filing separately---such as earned income credit---so neither you nor your spouse will get that credit if you file MFS. And if you have a child(ren) you are not eligible for any of the child-related credits if you are claimed as someone else's dependent.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
