Q. Am I allowed to give my maaser money to my parents so that they can use it for my tuition? Thank you
A. See Shulchan Aruch and Remoh (C.M. 207: 2 and Nesivos Hamishpot ibid. 2)) in regards to whom do the wages of a working girl, still at home and supported by the father, belong. Assuming the most likely scenario that the father willingly gives away his rights to those wages to his daughter, Horav Shlomo Miller Shlit'a suggest that when the father could afford to pay the tuition, it is best for the daughter to donate the maser monies directly to the institution and request from them if they would kindly and benevolently, from their own free will, deduct that amount from her tuition or agree that they would accept monies that were raised on their behalf as tuition.
The reason being is that you cannot use maser money for payments you are already obligated to compensate, as the Chofetz Chaim in Ahavas Chessed (Ch. 19) writes because "it is like paying one's own debts from maaser funds". Although girls schooling and tuition was in former years seen as optional since in Halacha there is no inherent parental obligation to educate girls in a school, that is not the case today (Igrois Moishe Y.D. 2: 113), therefore giving your maser money to your parents may not be of help as they can not use it for paying your tuition (assuming they are able to pay tuition).
Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit'a