Clive Palmer says the Australian electoral system is deeply flawed and can easily be corrupted.
Mr Palmer is highly disturbed by what he's witnessed during what he claims will be an unsuccessful run for the Sunshine Coast seat of Fairfax.
But he says win or lose the seat, any Palmer United Party (PUP) senators who are elected will work to block all legislation until there's electoral reform.
"There's absolutely no way I will win based on voting irregularities and the security of the ballots," he told AAP on Tuesday.
"We think it's a corrupt system. Until that's sorted out (Tony) Abbott won't be getting any legislation through the senate with our support."
Mr Palmer had noticed a plethora of ways that votes could be tampered with, saying he was surprised that identification wasn't required to vote and that voters were given pencils to fill in ballots.
"Even in Zimbabwe you have to mark your thumb with ink and have identification," he said.
"What's to stop one guy to go into 10 different polling booths and voting 10 times."
The Australian Electoral Commission (AEC) said the use of pencils was allowed under the electoral act, and cost was also a factor.
"It would be quite expensive to give out pens every three years," an AEC spokeswoman told AAP.
"Showing ID is not a requirement under the act either.
"If people want that changed the laws need to change."
Mr Palmer also said AEC divisional officers had far too much authority over counting and that pre-poll ballot papers were left in a building owned by a Liberal National Party member for two weeks.
The AEC spokeswoman said ballots were always tightly secured, but she couldn't confirm who owned the premises where they were stored.
Mr Palmer said when he raised these issues with the AEC they always referred him back to the electoral act.
"It shouldn't be about what's in the act, it should be about best international practice," he said.
"The laws are inadequate if they allow these things to happen."
Mr Palmer was himself accused of a borderline breach of election laws by airing ads for his Palmer Coolum Resort after the advertising blackout deadline last week.
University of Queensland law professor Graeme Orr said the blackout rule only covered ads containing "election matter", but airing the resort ads was questionable.
"It's `not cricket', as they say," Prof Orr told AAP.
"If any other leader appeared in a puff piece they would risk being held to have breached the blackout."
Mr Palmer is currently 2016 votes ahead of Liberal National Party candidate Ted O'Brien in the seat of Fairfax.
The party could also pick up Senate seats in Queensland, Tasmania and Western Australia.
