I have to say, the voting advice above is not correct.
What happens if you vote independent on May 21?
Ok, there are effectively 2 situations:
1: You vote independent in a safe seat where there is an independent candidate who has a chance of victory (eg: Kooyong, Goldstein etc)
So you vote independent in one of these seats, there are a few outcomes:
- The incumbent standing for the major party gains 50% of the primary vote - there are no preference flows but your vote did try and get the independent in.
- The incumbent standing for the major party gains less than 50% of the primary vote but your independent does badly and is no chance of winning - your vote goes to preferences so, if for example, you voted independent (LNP safe seat) and gave a higher preference to the ALP then the ALP gets your preference vote and it counts as a full vote. Let me make this very very plain - your vote counts as if you gave your first preference to the ALP, it is not diluted or devalued in any way.
- The incumbent does not do well and they are relying on preferences to get back in - so you voted independent and the independent is one of the last 2 candidates standing at the count (the other major party got less votes than the independent after earlier preferences are allocated, so their preferences are allocated). The winner is the candidate with 50%+1 votes or the candidate with the highest number of votes, since the independent you voted for survived to the last 2 candidates your preferences are not allocated.
Possibly the best way to illustrate this is with 2 examples:
We have an electorate with 3 candidates, here are 2 ways it could work out:
Scenario 1
ALP - 2100 votes
LNP - 2900 votes
Ind - 1000 votes
So, a total of 6,000 votes and no-one has 3001 votes so no winner. The independent drops out and their preferences are allocated. Now, if the second choice of the people who voted for the independent went mainly to the ALP (901 or more of the preferences) then the ALP candidate is elected. But, if 101 or more of the people who voted independent preference the LNP then they win. As you can see it really depends how far behind the ALP was when the independent dropped out and how the voters who voted for the independent allocated their preferences.
Scenario 2
ALP - 1500
LNP - 2500
Ind - 2000
What you will notice here is that I made it closer - the second ranked candidate is only 500 behind the LNP and the LNP need 501 preferences to get in. In this scenario, since no candidate received 3001 votes the preferences of the lowest ranked candidate are allocated. So, ALP preferences are allocated. If the independent gains 1001 or more of the ALP preferences they win, if the LNP gain 501 or more of the ALP preferences they win.
So, with preferential voting you are not wasting a vote when you vote for a candidate who is no chance of winning, or a candidate who receives very few votes. The reason for this is that your vote goes through as a preference at full value.
Now, if you are in a safe LNP seat with a competitive independent you likely have more chance that the independent will be elected than the ALP. For example, I live in Goldstein. Unless the independent can get votes from those who normally vote LNP then she is no chance. Plus, if the independent drops out before the ALP then it is highly unlikely that those who normally vote LNP, but this time voted independent, will give their preferences to the ALP - they will most likely preference the LNP. In my seat voting ALP first and independent second is helping the LNP get back in.
In a seat such as Goldstein or Kooyong you should vote strategically (it's good statecraft

), because it is critical that, when the count gets down to 3 candidates, that the independent is ahead of the ALP since the ALP are absolutely no chance of winning.
2: You vote independent in an electorate where the independent is no chance, even if the seat is marginal and both major parties are a chance of winning:
Ok, so you vote independent, and here it really is much simpler, and irrelevant as to whether the seat is marginal or safe.
If you vote independent, and your candidate is knocked out, and the last 2 candidates competing for the seat are the 2 major parties, your preference (ie: the major party candidate you place a lower number next to and it can be that you placed a 7 next to the ALP and an 8 next to the LNP, doesn't matter how high the numbers are) will be allocated at full value, as 1 full vote, to the major party you preferenced first.
I have been a poll clerk at elections, I have counted votes, I fully understand preferential voting. Normally the advice is to just vote according to your preference, if you favour the ALP ahead of the independent then put them higher in your preferences. This is sound advice. But with the prospect of independents who could win in safe seats (this applies to both ALP and LNP safe seats) and especially where one major party is running dead (eg: the ALP in the Teal Independent seats, I have seen nothing from the ALP and have no idea who their candidate is) then voting for the independent first means more chance that the major party candidate from the party which would normally win the seat will lose.
Just don't ask me about the Senate (Proportional Representation with a multi-member electorate), I understand how that works very well, but it is incredibly complex and votes do go through as partial votes. Always remember though, votes
only go through as partial votes if your vote had a successful candidate higher in the preferences. So, if you vote ALP and they get 2 senators from their votes, but the number of people who voted for the ALP added up to 2.5 quotas (a quota is the number of votes required to elect a candidate - so in the Senate where we vote for 6 Senators it is the number of votes divided by six plus 1 - in an electorate with 1.2m votes that is 200,001 votes). Now if the ALP got 2.5 quotas, they have used 80% of their votes getting the first 2 senators elected so all the preferences go through at 20% value. If you voted for a candidate who is not elected it goes through at 100% value as none of that vote was used to elect a candidate. You want to count these bloody things!
DS