It depends on how you look at the statistics. Australia relies heavily on income tax, collecting 40% of tax revenue from personal income. That makes Australia the fourth highest taxing nation for personal tax in the OECD – but we were second highest in 2019 if that makes you feel better. But, if you are looking at take home pay there is a separate measure for that.

The Employee tax on labour income looks at our take home pay once tax is taken out and benefits have been added back in. This shows that the take home pay of an average single worker is 77% of their gross wage compared to the OCED average of 75.4%. For the average worker with a family (one married earner with 2 children), once tax and family benefits are taken into account, the Australian take home pay average is 84.1% compared to the OECD average of 85.9%. 

Australia also does not have social security contributions like other nations. These contributions represent an average of 27% of the total tax take for OECD nations.

With the final round of legislated income tax cuts due to commence on 1 July 2024, this should reduce the overall dependence on personal income tax relative to corporate and other taxes

In an Uber the other day, the driver revealed that he had become a driver to pay for his second mortgage. He invested in property but with interest rates spiking, the only way he could hold onto the property was to earn additional income. His “day job” starts early and ends at 3pm at which time he heads off to start driving.

He is not alone. The latest stats from the Australian Bureau of Statistics reveal that the number of workers holding multiple jobs has increased by 2.1% since December 2022 – in total, Australia has 947,300 people holding multiple jobs or 6.6% of the working population.

Is it worth it?

From a tax perspective, Australia has a progressive income tax system – the more you earn the more tax you pay, and access to social benefits tapers off.  It’s important when looking at a second job to understand your overall position – how much you are likely to earn, your costs of generating income, and what this income level will mean.

If you are taking on a second job, ensure that your tax-free threshold applies to your highest paying job from a PAYG withholding perspective.