Pre-election pendulum for the 2019 Australian federal election

2019 Australian federal election
Debates and forums Pre-election pendulum Candidates Polling National Electorate
National results
House of Representatives Senate Post-election pendulum
State and territory results
New South Wales Victoria Queensland Western Australia South Australia Tasmania Australian Capital Territory Northern Territory
Elected House of Representative members Elected Senators
v t e

At the 2016 federal election of the 150 House of Representatives seats the Liberal/National Coalition won 76, a one-seat majority, Labor won 69 seats and crossbenchers won the remaining five. A redistribution in 2017/18 changed the representation entitlements. For the next election, the number of seats in the House will increase to 151, South Australia will lose a seat, Victoria and the Australian Capital Territory (ACT) will gain one seat each.

The following Mackerras pendulum shows the notional margins for seats following boundary redistributions in Victoria, Queensland, South Australia, Tasmania, the Northern Territory and the ACT. Based on ABC analyst Antony Green's calculations of the effect of boundary redistributions for the next election,^[1] and the outcome of the 2018 Wentworth by-election, the pendulum has the Coalition government on 73 of 151 seats with the Labor opposition on 72 seats and a crossbench of six seats.^[1]

Assuming a theoretical nationwide uniform swing, the Labor opposition would need at least 50.7% of the two-party vote (at least a 1.1-point two-party swing) to win 76 seats and majority government. The incumbent Coalition government no longer holds a majority, and would require at least 51.1% of the two-party vote (at least a 0.7-point two-party swing) to regain it.