Theres no such concept of Pass or failure in IELTS as this test checks only the english proficiency of candidates. However , theres is a Bandwidth criteria which measures performance level.
9 39 – 40 (Expert User )
8.5 37 – 38
8 35 – 36 (Very good user )
7.5 32 – 34
7 30 – 31 ( Good user)
6.5 26 – 29
6 23 – 25 ( Competent user)
5.5 18 – 22
5 16 – 17 ( Modest user )
4.5 13 – 15
4 11 – 12 (limited user )
The truth is, you don’t fail or pass IELTS. IELTS (International English Language Testing System) is an exam conducted to check your English language proficiency. Whatever your proficiency is, this test is going to mark you accordingly. On the other hand, in case you score less, you might fail to get admission into your preferred college or university. Hence, there’s no pass or fail in IELTS. You might just pass or fail the criteria for admission into the college or university.