You need a minimum marks of 60 to apply for Australian skilled immigration program.

If you score above 50 and less than 65 then you will be eligible to apply for Australian PR, but this score doesn’t give you any points, you will secure competent English which is the minimal English language criteria to apply. Above 50 in PTE gives ‘zero’ points for PR points tally. score of 65 and above, less than 79 gives you 10 points.