Net Price Calculator Improvement Act This bill establishes requirements concerning the information that must be provided to prospective students about the cost of attendance at an institution of higher education (IHE). Specifically, the bill establishes the minimum requirements for the net price calculator that an IHE must include on its website. An IHE's net price is the average yearly price actually charged to first-time, full-time undergraduate students receiving student aid at the IHE after deducting such aid. The bill also authorizes the Department of Education to develop a universal net price calculator that enables users to answer one set of questions and receive net prices for several IHEs and compare those prices.