Queensland's Liberal National Party has become the highest-earning political machine in the country.

The latest financial returns, published by the Australian Electoral Commission on Monday, showed the Queensland LNP received just under $17 million in 2012/13.

The biggest single donations came from now-former member and billionaire Clive Palmer ($43,300), Gold Coast window and door company Jeld-Wen Australia ($100,000), the Manildra Group ($49,500) and Beach Energy ($55,000).

The party's receipts outstripped the combined national efforts of the Nationals ($8.3 million) and the Greens ($8.1 million).

Mr Palmer went on to form his own party in July 2013, which meant the Palmer United Party's financial returns were not disclosed in the period.