This year the ETS (Educational Testing Service) has added British and Australian English accents to the TOEFL iBT test. The Listening and Speaking sections of the TOEFL iBT® test will include other native-speaker English accents in addition to accents from North America. Test takers may hear accents from the United Kingdom, New Zealand or Australia.
ETS is adding these accents to better reflect the variety of native English accents you may encounter while studying abroad. Seeking English recommends test takers to listen to British and Australian radio a week before the test, in addition ask your test preparation tutors if they have official TOEFL Listening and Speaking exercises with these accents.