Geologist salary: what lands in your bank account after tax and Medicare

Comparing job offers? Focus on take-home pay

When you're weighing up a job offer as a geologist, the headline figure – the annual salary or hourly rate – is only part of the story. What really matters is the amount that reaches your bank account after tax and the Medicare levy. This guide uses the latest public data to show you how a typical geologist salary translates into take-home pay, so you can compare offers on an equal footing.

The median geologist salary in Australia

The Australian Bureau of Statistics reports that the median full-time weekly earnings for geologists, geophysicists and hydrogeologists is $2,914. That works out to about $151,528 a year before tax. Keep in mind this is a median – half earn more, half earn less. The average full-time hours for this occupation are 51 per week, which is higher than the all-occupations average of 44 hours. The median hourly rate is $61.

These figures come from the ABS Labour Force Survey and the Survey of Employee Earnings and Hours. They are the most reliable public benchmark for a geologist salary in Australia.

How tax and Medicare affect your geologist salary

Your take-home pay is what remains after the Australian Taxation Office deducts income tax and the Medicare levy. For the 2026–27 tax year, the rates are:

• Tax-free threshold: $0 to $18,200 – no tax
• $18,201 to $45,000: 15 cents for each dollar over $18,200
• $45,001 to $135,000: $4,020 plus 30 cents for each dollar over $45,000
• $135,001 to $190,000: $31,020 plus 37 cents for each dollar over $135,000
• $190,001 and over: $51,370 plus 45 cents for each dollar over $190,000

Most geologists fall into the 37% bracket. On top of income tax, you pay the Medicare levy of 2% of your taxable income. The latest published single-person Medicare thresholds are $28,011 and $35,013 – if you earn below the lower threshold you pay no levy, and between the thresholds you pay a reduced rate. But at a full-time geologist salary you will pay the full 2%.

Estimating your take-home pay

Let's run the numbers for a geologist earning the median $2,914 per week ($151,528 annual).

Income tax (2026–27):

• Tax on first $135,000: $31,020
• Tax on remaining $16,528 ($151,528 – $135,000): $6,115.36 (37 cents per dollar)
• Total income tax: $37,135.36

Medicare levy: 2% of $151,528 = $3,030.56

Total deductions: $40,165.92

Estimated annual take-home: $151,528 – $40,165.92 = $111,362.08

Weekly take-home: approximately $2,142

This is an estimate – it doesn't include HELP/HECS repayments, the Medicare levy surcharge, or salary sacrifice arrangements. Use our Take-home pay tool for a personalised calculation.

What about super and salary packaging?

Most geologist job advertisements quote a salary plus superannuation. From 1 July 2026, the super guarantee rate is 12% of your ordinary time earnings, up to a maximum contribution base of $270,830. Super is not deducted from your take-home pay – it's paid on top by your employer. If an offer says "$150,000 plus super", your take-home calculation is based on the $150,000, and your super is additional.

Salary packaging (salary sacrificing) can reduce your taxable income. For example, packaging a car or additional super contributions lowers the amount of tax and Medicare levy you pay. However, it also reduces your cash take-home. Check our Salary packaging guide for details.

How the geologist salary compares to benchmarks

• National minimum wage: $26.44 per hour, $1,004.90 per week (from 1 July 2026). The median geologist hourly rate of $61 is more than double that.
• All employees average weekly total earnings: $1,579.20 (includes part-time). Geologists earn well above this.
• Full-time adult ordinary time earnings: $2,083.70 per week. The median geologist salary of $2,914 is about 40% higher.

These benchmarks come from Fair Work and the ABS. See our Benchmarks page for the full set.

Industry and award considerations

Geologists work across mining, oil and gas, environmental consulting, and government. Some are covered by awards such as the Hydrocarbons Field Geologists Award, which sets minimum pay rates and conditions. If you're covered by an enterprise agreement, your pay may differ. Always check your specific award or agreement using Fair Work's Pay and Conditions Tool.

Key takeaways for comparing offers

• Look at the after-tax figure, not just the headline salary. A higher gross salary may push you into a higher tax bracket, but the net difference can still be worthwhile.
• Consider hours. The median geologist works 51 hours a week. If one offer pays more but expects longer hours, calculate your effective hourly rate.
• Factor in super. An offer with 12% super is better than one with 10.5%, all else equal.
• Don't forget the Medicare levy. At typical geologist incomes, it's a flat 2%.

For a detailed breakdown of how tax and Medicare apply to your situation, visit our Tax and Medicare page.