Marine biologist salary: what lands in your account after tax and Medicare
The median full-time marine biologist salary is $80,300 per year before tax, according to career data; take-home pay after tax and Medicare is estimated at about $64,100 annually.
Understanding the marine biologist salary
If you are looking at a role in marine biology, the first number you see is usually the gross annual salary. According to career data, the median full-time marine biologist salary in Australia is $80,300 per year before tax . The Australian Government’s Jobs and Skills Australia notes that median weekly earnings are not published for this occupation because the sample size is too small . SEEK’s salary data shows a range but does not give a single median figure. That $80,300 is a useful anchor, but what really matters is the amount that lands in your bank account after tax and the Medicare levy.
What that means for your take-home pay
Using the 2026–27 tax rates, a gross salary of $80,300 results in:
- Income tax: $14,610 (calculated as $4,020 plus 30¢ for every dollar over $45,000)
- Medicare levy: $1,606 (2% of $80,300; full rate applies because your income is well above the single threshold of $35,013)
- Low Income Tax Offset (LITO): $0 (it phases out completely above $66,667)
- Estimated take-home pay: $64,084 per year, or about $2,464 per fortnight and $1,232 per week
This is a resident estimate only. It excludes HELP/HECS repayments, the Medicare levy surcharge, and salary packaging. For a personalised calculation, use our Take-home pay tool. You can also read more about how tax and the levy work on our Tax and Medicare page.
Comparing job offers using take-home pay
When you receive a job offer, look beyond the headline figure. Two offers with the same gross salary can have different take-home amounts depending on:
- Superannuation: Is the salary quoted as “plus super” or “including super”? If it’s $80,300 plus 12% super, your take-home is calculated on the $80,300 base. If it’s $80,300 inclusive, the base is lower.
- Sector: Universities and government agencies pay according to enterprise agreements with set pay bands. Consultancies and not-for-profits may offer more flexibility but also more variability.
- Contract type: Early-career roles are often short-term contracts tied to research grants. Your annual earnings can fluctuate between projects.
- Location and experience: Senior roles or positions in remote areas may attract higher pay. A doctorate and published research often separate applicants for senior positions.
To compare offers fairly, convert each to a fortnightly take-home figure using the same tax assumptions. That way you see what you can actually spend or save.
Key benchmarks to keep in mind
- National minimum wage: $26.44 per hour, $1,004.90 per week (from 1 July 2026) – Minimum wage
- All employees average weekly total earnings: $1,579.20 (includes part-time) – Average pay
- Full-time adult ordinary time earnings: $2,083.70 per week – Average pay
- Medicare levy single thresholds: $28,011 (lower) and $35,013 (upper). Full-time salaries above $35,013 pay the full 2%.
These figures help you see where the marine biologist salary sits relative to the broader market.
Final thoughts
The marine biologist salary of $80,300 is a solid mid-range income, but your take-home is what funds your lifestyle. Always ask whether the offer is plus super, check the contract type, and use a take-home calculator to see the real number. For more guidance on negotiating or understanding your pay, explore our Guides and Topics.
Questions
How much does a marine biologist earn after tax?
On a median gross salary of $80,300, you would pay about $14,610 in income tax and $1,606 in Medicare levy, leaving an estimated $64,084 per year. That works out to roughly $2,464 per fortnight or $1,232 per week. Your actual take-home will vary if you have HELP/HECS, salary sacrifice, or other deductions.
Is the $80,300 figure plus super or inclusive?
The $80,300 median is typically quoted as base salary before super. From 1 July 2026, the super guarantee is 12%, so an employer offering $80,300 plus super would contribute an extra $9,636 to your super fund. That amount is not part of your take-home pay.
How does the marine biologist salary compare to the national minimum wage?
The national minimum wage is $26.44 per hour or $1,004.90 per week (about $52,255 per year). The median marine biologist salary of $80,300 is well above that, but entry-level or short-term contract roles may pay closer to the minimum. Always check the specific offer.