Billions of dollars are spent on US election campaigns, significantly higher than in Australia. Yet on a per capita basis, the margins had been similar until a significant increase in spending in recent campaigns.

During the 2015-16 Australian federal election, political parties spent $US5.6 per person (US$136.4 million in total) while in the 2016 US elections, parties spent $US7.9 per person (US$2.57 billion in total).

For the Australian 2018-19 federal election campaign, parties forked out $US11.84 per person (US$295 million in total), while in 2020, US political parties spent $27.41 per person ($US9.02 billion in total) to attract votes.

Expenditure on election campaigns, per capita (in US dollars, converted at current exchange rate)

Expenditure on election campaigns, per capita (in US dollars, converted at current exchange rate)
Sources: Parliament of Australia Parliamentary Library; AdImpact