TOEFL or IELTS is required of most applicants whose native language is not English.
If you have received (or will receive) an undergraduate degree from a college or university where English is the primary language of instruction, and if you have studied in residence at that institution for at least three years, you are exempt from the English Language Test requirement and are not required to submit the TOEFL or IELTS.
No exemptions are made on the basis of an advanced degree (e.g. M.A./M.S. or Ph.D.) from any institution.
When you complete your application, you will answer questions about your native language and the primary language of instruction at your baccalaureate institution. If either was English, you will not be required to submit TOEFL or IELTS scores when you submit your application. No separate documentation is necessary.
Although the Graduate School does not have set test minimums for admission, individual departments use these test scores as part of their holistic review of your application. Please check with the department to which you are applying to see if they have a minimum requirement. The Graduate School does require incoming doctoral students who received a score of 25 or below on the TOEFL Speaking section or a 7.5 or below on IELTS Speaking section to participate in a Summer English Language program at Yale in August prior to matriculation. These students are required to demonstrate English proficiency before they are permitted to teach.