“Declarations can only be made when the result of the official count is mathematically certain and an absolute majority is reached,” the ECQ said in a statement.
“Most often an absolute majority is not reached on the official first preference count and therefore a full preference count is required for a declaration to be made.
“Where there are a lot of candidates contesting within a state district, it may not be clear until all the votes have been counted which candidate has the fewest first preference votes in order to commence the distribution of preferences.”
When the final ballots arrive at postal hubs on Tuesday night, they will be sorted by electorate and sent by courier to seats around Queensland.
“When postal votes arrive, they will be scrutinised and, if they are correctly witnessed and signed by an enrolled elector who hasn’t already been marked off the roll, they will be included in the count,” the ECQ statement read.
About 740,000 postal votes have been counted compared with the 367,000 mailed in at the 2017 election.
About 50,000, or 7 per cent, of all postal votes received so far have been rejected.
It remains unclear whether the amount of dud postal ballots will affect the result in the three seats that remain too close to call.
The LNP is ahead in Bundaberg and Currumbin and the ALP is leading in Nicklin.