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Salary Sacrifice WA: How It Affects Your Pay Compared to the National Line
Understand salary sacrifice in Western Australia, how it interacts with state and industry pay differences, and where your earnings sit on the national index.
Salary sacrifice in WA is common in high-paying industries; the state's full-time adult ordinary-time earnings index is 106.9, above the national line of 100.
Salary Sacrifice WA: What It Means for Your Pay
Salary sacrifice is a common way to reduce your taxable income by swapping part of your salary for benefits like extra super, a car, or other perks. In Western Australia, it is especially relevant because the state’s full-time adult ordinary-time earnings sit at an index of 106.9 – well above the national line of 100. That means the typical WA worker earns about $115,825 a year, compared to the national benchmark of $108,352. But salary sacrifice can change how much of that you actually take home.
How the National Index Works
The Salary Index uses a simple measure: your yearly gross ordinary-time earnings divided by the national line ($108,352) times 100. So a WA worker on the state average has an index of 106.9. This index is based on gross pay before any salary sacrifice deductions. When you sacrifice part of your salary, your taxable income drops, but the index figure for your role or state remains the same – it reflects what you earn before sacrifice.
State Differences: WA vs the Rest
WA’s index of 106.9 is the second highest among states, behind only the ACT (109.9). Compare that to Tasmania (88.6) or South Australia (94.6). The higher earnings in WA are driven by the mining and resources sector, which pulls up the average. If you work in mining, your industry index is 154.7 – that’s $167,600 annualised. Salary sacrifice in such a high-paying industry can save you thousands in tax each year.
For example, a WA miner earning $167,600 could sacrifice $25,000 into super. Their taxable income falls to $142,600, saving about $9,250 in tax plus $500 Medicare levy. The super guarantee (12%) still applies to the full $167,600, so the employer contributes $20,112 to super. The sacrificed amount is on top of that.
Industry Context and Salary Sacrifice
Not all industries in WA are high-paying. Retail trade has an index of 75.9, and accommodation and food services is 72.5. In these sectors, salary sacrifice is less common because workers are closer to award minimums. The national minimum wage from 1 July 2026 is $26.44 per hour (index 48.2). If you are on award rates, your employer cannot let you sacrifice pay below the award minimum. Always check your modern award or enterprise agreement.
Tax and Super Considerations
Salary sacrifice affects your tax bill because the sacrificed amount is deducted from your gross pay before tax. The 2026–27 resident tax rates are:
- Nil up to $18,200
- 15% from $18,201 to $45,000
- 30% from $45,001 to $135,000
- 37% from $135,001 to $190,000
- 45% above $190,000 Plus a 2% Medicare levy. The higher your marginal rate, the more you save. But remember that salary sacrifice into super counts towards the concessional contributions cap ($27,500 for 2026–27). Exceeding that cap incurs extra tax.
Super guarantee contributions are based on your ordinary time earnings, which include any salary sacrificed amounts. So your employer must pay 12% on your full ordinary-time earnings, even if you sacrifice part of it. This is a key rule from the ATO.
Practical Example: WA Professional
Consider a professional in Perth working in the professional, scientific and technical services industry (index 114.7, annualised $124,200). They decide to salary sacrifice a car worth $15,000 per year (including running costs). Their taxable income drops to $109,200. At the 30% marginal rate, they save $4,500 in tax plus $300 Medicare levy. Their take-home pay reduces by about $10,200, but they get the car. The employer still pays super on $124,200.
How to Set Up Salary Sacrifice in WA
You need a formal agreement with your employer. The benefit must be provided under a salary sacrifice arrangement, and your employer must report the sacrificed amount on your payment summary. Some benefits, like cars, have fringe benefits tax (FBT) implications, but the employer can choose to pass on the FBT to you. Salary sacrifice into super is generally FBT-free.
Key Points to Remember
- Salary sacrifice does not change your ordinary-time earnings benchmark for the index.
- It can reduce your taxable income and tax bill.
- Super guarantee is still calculated on your full ordinary-time earnings.
- Check your award or agreement – you cannot be paid below the minimum.
- WA’s high average earnings make salary sacrifice particularly attractive, especially in mining and professional services.
For more on how the index works, see how the index works. To compare states, visit states. Industry breakdowns are at industries.
Common Questions
Can I salary sacrifice if I’m on a junior wage? Junior rates are a percentage of the adult national minimum wage. You can still salary sacrifice, but your pay after sacrifice cannot fall below the junior minimum rate set by your award or the National Minimum Wage Order.
Does salary sacrifice affect my Medicare levy surcharge? The Medicare levy surcharge applies if you earn above a threshold and don’t have private hospital cover. Salary sacrifice reduces your taxable income, which may help you stay below the threshold. But the surcharge is based on your income for surcharge purposes, which includes reportable fringe benefits. Check with the ATO.
What happens if I leave my job? If you have a salary sacrifice arrangement for a car or other ongoing benefit, you may need to repay the residual value or transfer the lease. For super, the sacrificed contributions stay in your fund. Always read the terms of your agreement.
Questions people ask
What is salary sacrifice and how does it work in WA?
Salary sacrifice is an arrangement where you give up part of your pre-tax salary in exchange for benefits such as additional super contributions, a car, or electronic devices. In WA, it is common in industries like mining and resources. The sacrificed amount is deducted from your gross pay before tax, reducing your taxable income. However, the super guarantee (12% from 1 July 2026) is still calculated on your ordinary time earnings, including the sacrificed amount. Your employer must agree to the arrangement, and it cannot reduce your pay below the relevant award or minimum wage.
How does salary sacrifice affect my take-home pay and tax in WA?
Salary sacrifice lowers your taxable income, so you pay less income tax and Medicare levy. For example, if you earn $115,825 (WA average) and sacrifice $10,000 into super, your taxable income drops to $105,825. Using 2026–27 tax rates, you save about $3,000 in tax plus $200 Medicare levy. Your take-home pay decreases by the sacrificed amount, but the super contribution boosts your retirement savings. The effect depends on your marginal tax rate. Remember that salary sacrifice does not change the ordinary-time earnings figure used in the national index – that remains your gross pay before sacrifice.
Is salary sacrifice common in WA industries like mining?
Yes, salary sacrifice is widespread in WA’s mining sector, where the industry index is 154.7 (annualised $167,600). High earners often sacrifice into super to maximise tax benefits. Other industries like professional services (index 114.7) also use salary sacrifice for cars or laptops. In lower-paying industries such as retail (index 75.9) or accommodation (72.5), salary sacrifice is less common because employees may be closer to award minimums. Always check your award or enterprise agreement, as some restrict salary sacrifice arrangements.