Does the 25% casual loading apply to senior software engineer salaries?

Yes, if you are engaged as a casual employee under a modern award or enterprise agreement, you are entitled to a 25% casual loading on top of the base hourly rate. This loading is included in your ordinary time earnings for superannuation purposes. However, many senior software engineers are employed on fixed-term or permanent contracts, so check your employment type.

How is superannuation calculated on a senior software engineer salary?

Superannuation is paid on top of your ordinary time earnings at a rate of 12% (from 1 July 2026). For example, if your annual gross salary is $150,000, your employer must contribute an additional $18,000 to your super fund, up to the maximum contribution base of $270,830. This is not deducted from your take-home pay.

What tax will I pay on a senior software engineer salary?

For the 2026–27 financial year, resident tax rates are: nil on the first $18,200, 15% on income between $18,201 and $45,000, 30% on $45,001 to $135,000, 37% on $135,001 to $190,000, and 45% above $190,000. A 2% Medicare levy generally applies. Use our [take-home pay](/topics/take-home) guide for a detailed estimate.

Senior Software Engineer Salary: How to Convert Hourly Rates to Annual Pay

For a senior software engineer earning $80 per hour, working 38 hours per week, the annual gross salary is approximately $158,080 before super and tax.

Understanding the hourly-to-annual conversion

When you see a senior software engineer salary quoted as an hourly rate, converting it to an annual figure is straightforward. Multiply the hourly rate by the number of hours worked per week, then by 52 weeks. For a full-time employee, we assume 38 hours per week – the standard under the Fair Work Act. For example, an hourly rate of $80 gives:

$80 × 38 hours × 52 weeks = $158,080 gross per year.

If you are paid fortnightly, simply double the weekly amount. A weekly pay of $3,040 becomes $6,080 per fortnight before tax and super.

This calculation assumes the same rate every week with no unpaid overtime, penalty rates, or allowances. It is a baseline estimate.

The National Minimum Wage and award rates

The Fair Work Ombudsman sets the National Minimum Wage, which from 1 July 2026 is $26.44 per hour for ordinary hours, or $1,004.90 per week for 38 hours. Casual employees receive a 25% loading, making the casual rate $33.05 per hour. Most senior software engineers earn well above this minimum, but award rates may apply if you are covered by an industry award such as the Professional Employees Award. Always check the relevant pay guides for your classification.

Where does a senior software engineer salary fit?

A senior software engineer salary is typically above award rates and often negotiated under an enterprise agreement or individual contract. The Australian Bureau of Statistics (ABS) reports that full-time adult average weekly ordinary time earnings were $2,083.70 in May 2026. That equates to an annual salary of about $108,352. However, senior software engineers generally earn more than the all-occupations average. The available data does not provide a specific senior software engineer salary figure; however, the ABS average weekly earnings can serve as a benchmark. For a more tailored estimate, use the timesheet on this site to enter your own hourly rate and see the annual equivalent.

Casual loading and superannuation

If you work as a casual senior software engineer, you are entitled to a 25% loading on your base hourly rate. This loading is part of your ordinary time earnings, so superannuation is calculated on the loaded rate. For example, a base rate of $80 becomes $100 per hour with casual loading. Annual gross (38 hours) would be $197,600. Superannuation at 12% is paid on top of that – an additional $23,712, up to the maximum contribution base of $270,830. See our super and packaging page for more details.

Tax considerations

Your take-home pay depends on your tax residency and the 2026–27 resident tax rates: nil on the first $18,200, 15% on income up to $45,000, 30% up to $135,000, 37% up to $190,000, and 45% above that. A 2% Medicare levy generally applies. For a senior software engineer earning $158,080, the estimated tax (including Medicare) would be around $38,000–$40,000, depending on offsets. Use our take-home pay guide for a detailed estimate.

Using the timesheet tool

Our the timesheet lets you enter your base hourly rate and optionally add the 25% casual loading. It then calculates your weekly, fortnightly, and annual gross pay, plus estimated super and tax. Remember: do not enter a rate that already includes casual loading – check the box to add it on top. The tool uses the latest Fair Work and ATO figures to give you a reliable estimate.

Important disclaimer

Annual pay here is hourly rate × hours per week × 52. It assumes the same rate every week, no unpaid overtime, no penalty rates, no allowances, and no salary sacrifice. Super is estimated at 12% of ordinary earnings only, paid on top, and stops at the $270,830 maximum contribution base. Tax is the 2026–27 resident scale with the full tax-free threshold. Medicare uses the 2025–26 single reduction thresholds because the 2026–27 reduction thresholds were not confirmed here. HELP, the Medicare levy surcharge, and salary packaging are not deducted. This is an estimate, not a determination of your pay or tax.