http://www.immi.gov.au/allforms/pdf/1127.pdf (P.37)
In most cases, permanent residence cannot be granted less than 2 years from when you lodge your
application. You may, however, be granted a permanent visa without having to fulfil the usual two-year
waiting period if:
•
at the time you apply, you have been in a partner relationship with your partner for
3 years or more, or 2 years or more if you and your partner have a dependent child of your
relationship; or
•
your partner holds or held a permanent humanitarian visa and you were in the relationship before
the visa was granted and this relationship was declared to the department at the time (applies to
subclass 100 visas only).