<blockquote class="Quote" rel="marierenz">hello! i just want to ask if okay lang ba na wala pa return ticket if pumunta na ako australia. i have a visa grant na po, multiple sya. plan ko kase na doon na antayin yung result ng student dependent visa ko, on shore, then plan namin ng hubby ko na umuwi ng december sa pinas. is it okay ba na magenter ako na one way ticket lang muna? thank you sa sasagot po.</blockquote>
Personally, I wouldn't recommend getting a one-way ticket if you only have a tourist visa. Very strict sila sa immigration and they will definitely ask questions such as where you are staying, your itinerary for your trip, how long you are staying and even when you are going back to the Philippines. This means that even if you already have a visa, meron parin chance na harangin or i-deny ang entry mo if they feel like you will stay longer than intended, lalo pag walang return ticket.
Also, check mo yung restrictions sa visa mo, kasi kahit multiple visit, merong stay period limit yan, usually "3 months from the date of each arrival." An option would be to buy a round-trip ticket for September and then leave in December if you really want to stay for that long.