When is the latest I can take the GMAT or GRE?

The GMAT or GRE is required by the application deadline. When submitting your application, you must report the unofficial GMAT or GRE score given on the day of the test. This is the only score that the Admissions Board acknowledges. The official test score(s) sent by GMAC or ETS may arrive after the deadline dates, and this score will be used for verification purposes.