The finance industry remains the biggest source of corporate donations to the major parties, but the Coalition's once potent advantage in corporate fundraising was partially erased in 2016-17.

An analysis of annual donation disclosures data from the Australian Electoral Commission showed that the finance industry gave around $857,000 to the Liberal and National parties, and just over $705,000 to the Labor Party. That was about $150,000 less than its total contribution in 2015-16. ANZ -- with a straight $150,000 donation to each side, was the biggest donor along with Macquarie Bank, which gave a total of $157,000 to the Coalition and $93,000 to Labor. Labor's share of the finance industry contribution is around the same as in 2015-16, but significantly up from 2013-15, when its share dropped below 40%.