So here's the deal. As a grad student, you will recieve a chunk of untaxed money every month. I'm a DDS/PhD at Ohio State, and all I had to do was contact the HR department at OSU, and they hooked me up with forms to estimate how much tax I would owe and forms to pay quarterly installments of that tax. If you pay quarterly, it should be a few hundred dollars every 3 months. You can also elect to just send the government a big chunk of money in April for your whole year's taxes, but I really wouldn't reccommend doing that. I also pay an accountant ~$15 to figure out my taxes for me at the end of the year. She's a family friend of a classmate, but you should be able to find someone pretty easily. The taxes aren't difficult to figure out, but I wouldn't want to mess them up. You can deduct all of your school expenses (books, supplies, etc) since they are "business expenses." Once you're in a program, just ask people ahead of you in the program how they pay taxes, and I'm sure you'll get all the info and contacts you need. This isn't really something to stress about ahead of time.
Good Luck!
