Salary Sacrifice Lease Car: How It Affects Your Pay on the Australian Salary Index

Salary Sacrifice Lease Car and the Australian Salary Index

When you hear about a salary sacrifice lease car, the first question is often: how does it affect my pay compared to the national average? The answer is straightforward but worth unpacking because it touches on tax, take-home pay, and the way the Salary Index works.

What is a salary sacrifice lease car?

A salary sacrifice arrangement lets you give up part of your pre-tax salary in exchange for a benefit from your employer. With a car lease—often called a novated lease—you sacrifice a set amount each pay period to cover the lease payments, running costs, registration, insurance, and sometimes fuel and maintenance. The car is effectively yours to use, but the lease is managed through your employer.

The key point: the amount you sacrifice comes out of your gross salary before tax is calculated. That lowers your taxable income, so you pay less income tax and Medicare levy. But your gross ordinary-time earnings—the figure used to calculate your position on the salary index—do not change.

Where does your pay sit on the index?

The salary index compares your yearly gross ordinary-time earnings to the national line of 100, which is based on the ABS Average Weekly Earnings figure of $2,083.70 per week, annualised to $108,352 (May 2026 data). If you earn exactly that, your index is 100. If you earn more, your index goes above 100; if less, below.

Because salary sacrifice does not alter your gross earnings, your index number stays the same whether you sacrifice or not. For example, a retail worker earning $82,000 a year (index about 75.7) who sacrifices $10,000 for a car lease still has an index of 75.7. Their taxable income drops to $72,000, but the index is unchanged.

How take-home pay changes

Even though the index doesn't move, your take-home pay does. Less taxable income means less tax. Using the 2026–27 resident tax rates (with the tax-free threshold and 2% Medicare levy), someone on $108,352 (index 100) would have an estimated take-home of about $82,000. If they sacrifice $15,000, taxable income falls to $93,352, and take-home rises to roughly $74,000 in cash—plus they get the use of a car that would otherwise cost after-tax dollars. The net benefit depends on your marginal tax rate. For someone in the 30% bracket (taxable income $45,001–$135,000), each dollar sacrificed saves 32 cents (30% tax plus 2% Medicare).

Important caveats

Salary sacrifice for a car lease is not free money. Fringe benefits tax (FBT) may apply if the car is available for private use. Many employers use the statutory formula method, which can reduce the FBT liability. Also, your employer may charge an administration fee. And while super guarantee is calculated on your gross earnings (so salary sacrifice doesn't reduce your super), some employers calculate super on your reduced salary—check your employment contract.

The pay guides for your industry may have specific rules about salary sacrifice, especially in awards or enterprise agreements. Similarly, states like Western Australia (index 106.9) or the ACT (109.9) have higher average earnings, so the benefit of salary sacrifice can be larger if you're in a higher tax bracket.

Practical example

Consider a professional in the Professional, scientific and technical industry, where the index is 114.7 (annualised $124,300). If they salary sacrifice $20,000 for a car lease, their taxable income drops to $104,300. Their index remains 114.7, but they save about $6,400 in tax and Medicare (at the 30% marginal rate). The car lease payments are covered by the sacrifice, so they effectively get a car worth $20,000 a year for a net cost of about $13,600 in forgone after-tax income.

What the index tells you

The salary index is a benchmark for gross ordinary-time earnings. It helps you see where your pay sits relative to the national average, by industry, or by state. Salary sacrifice does not change that benchmark. But understanding your index number can help you decide whether a salary sacrifice lease car makes financial sense. If your index is high, you're likely in a higher tax bracket, so the tax savings from salary sacrifice are larger. If your index is low, the savings are smaller, and you may want to compare the cost of the lease against other uses of your pre-tax salary, such as salary sacrificing into super.

For more on how the index is calculated, see how the index works. For a broader look at pay topics, visit our topics page.

Final thought

A salary sacrifice lease car is a common way to reduce tax and get a vehicle, but it does not move your position on the Australian salary index. Your gross earnings—and therefore your index number—stay the same. The real change is in your take-home pay and the value of the benefit you receive. Always consider the FBT implications and any fees before signing up.