What Duolingo score do you need for Northeastern University London?

English test results must have been obtained within two years before you start your course.

For comparison, the same page asks for IELTS Academic 6.5 with at least 6.0 in Listening, Speaking, Reading and Writing.

Undergraduate applicants who took higher-level English in secondary school exams may be exempt; the academic handbook lists equivalencies. The page also accepts IB English A at HL4 or SL5 and English B at HL5 or SL5.

Requirements vary by programme and change between admissions cycles. The score that binds you is the one on your Northeastern London programme page and in your offer letter, so check it there before you book a test.