Can you get a discount on the New York City subway with a student ID?

Not exactly, no. Student Metrocards are available for kindergarten through 12th grade students. There are no Student Metrocards for college students. And your school gets the card for you. You do not get it directly from the MTA-NYCTA (Metro Transit Authority, which is the New York State transit authority, and New York City Transit Authority, which is a sub-division of the MTA).

You certainly cannot present a student ID at the subway station and get a discount on your Metrocard, not least because most stations do not have full-time tellers (or any tellers at all), only Metrocard machines. So there is no one to show your ID to, anyway.

Student Metrocards offer either half-fare or full-fare discounts, depending on how far you have to travel to and from school. They can be used only on school days, and only 3 times a day.

See the Related Link below for more details.