BMW salary sacrifice: where your pay sits on the Australian salary index

BMW salary sacrifice and the Australian salary index

If you are looking into a BMW salary sacrifice, you are probably weighing the tax benefits against the reduction in your take-home pay. But how does that affect where you sit on the Australian salary index? The index is a simple way to see how your gross earnings compare to the national full-time adult ordinary-time average, set at 100. This article explains the connection and uses real Australian benchmarks from the ABS, Fair Work, and the ATO.

What is a salary sacrifice?

A salary sacrifice arrangement lets you give up part of your gross salary in exchange for a non-cash benefit, like a car lease. The sacrificed amount is taken out before tax, which lowers your taxable income. For a BMW, this often means a novated lease through your employer. The key point for the salary index is that your gross salary – the figure used to calculate your index number – is reduced by the sacrifice amount. So if you normally earn $120,000 and sacrifice $20,000 for the car, your gross salary for index purposes becomes $100,000.

How the salary index works

The Australian salary index, as used on Salary Index, is your yearly gross earnings divided by the national line ($108,352) and multiplied by 100. That national line comes from the ABS Average Weekly Earnings for May 2026: $2,083.70 per week, annualised. An index of 100 means you earn exactly the national average. Above 100 means above average; below means below. For example, the national minimum wage is $52,255 annualised, which gives an index of 48.2. State averages vary: Western Australia sits at 106.9, while Tasmania is 88.6. Industries also differ – mining workers have an index of 154.7, while retail trade is 75.9.

Where does a BMW salary sacrifice put you?

Without knowing your exact salary and the sacrifice amount, it is impossible to give a precise index figure. But we can work through an example. Suppose your base salary is $130,000. That gives an index of 120 (130,000 ÷ 108,352 × 100). If you sacrifice $25,000 for a BMW lease, your gross salary drops to $105,000. Your new index becomes 96.9 – below the national average. You have moved from well above the line to slightly below it. That is a significant shift, and it affects not just your index but also your superannuation and tax.

Superannuation considerations

Your super guarantee is 12% of your ordinary time earnings. Under most salary sacrifice arrangements, the sacrificed amount is still considered ordinary time earnings, so your employer must pay super on the original $130,000, not the reduced $105,000. That means your super contributions stay the same. However, some employers calculate super on the post-sacrifice salary, so check your contract. The super guarantee rate is 12% from 1 July 2026, with a maximum contribution base of $270,830.

Tax impact and take-home pay

Salary sacrifice reduces your taxable income, so you pay less income tax. For the 2026–27 resident tax rates (excluding Medicare), the first $18,200 is tax-free, then 15% up to $45,000, 30% up to $135,000, 37% up to $190,000, and 45% above. Plus a 2% Medicare levy. In the example above, sacrificing $25,000 could save you around $7,500 in tax (depending on your bracket). But your take-home pay also drops because you are paying for the car lease. The net effect depends on the lease cost and FBT.

How your index compares to state and industry benchmarks

Your index after sacrifice might place you in a different part of the national distribution. For instance, if your new index is 96.9, you are below the national average but still above the Tasmanian average (88.6) and close to the South Australian average (94.6). You would be below the Victorian average (98) and well below the ACT (109.9). In industry terms, you would be above retail trade (75.9) and accommodation and food services (72.5), but below professional services (114.7) and education (105.5). This context helps you see where you stand relative to other Australians.

Award and minimum wage rules

Your post-sacrifice salary must still meet the minimum wage or any applicable award rate. The national minimum wage is $26.44 per hour, or $1,004.90 per week. If your sacrifice brings your hourly rate below that, the arrangement is not allowed. Modern awards can set higher minimums. For example, the retail award might have a higher floor. Always check with your employer or Fair Work. The junior rates in the reference (e.g., under 16 at $9.73/hr) are based on the national minimum wage percentages, but a modern award can override them.

Other factors to consider

Salary sacrifice for a BMW also involves fringe benefits tax (FBT). Employers may pass the FBT cost to you, which can reduce the tax benefit. The ATO sets FBT rates and thresholds. Additionally, the Medicare levy surcharge may apply if you do not have private hospital cover and your income exceeds certain thresholds. The take-home pay estimates in the reference ignore HELP repayments, the Medicare levy reduction, and the surcharge, so your actual net pay may differ.

Using the salary index to decide

The salary index is a handy tool to see how your gross earnings compare nationally. When you add a BMW salary sacrifice, your index drops because your gross pay falls. That might be fine if the tax savings and the car benefit are worth it. But it is worth knowing where you land. You can use the how the index works page to calculate your own index. You can also compare your state using the states page or your industry using the industries page. For more on pay standards, see the pay guides.

Final thoughts

A BMW salary sacrifice can be a smart way to get a new car while reducing tax, but it lowers your gross salary and therefore your position on the Australian salary index. The exact index depends on your base pay and the sacrifice amount. Use the national benchmarks – the average of $108,352 (index 100) and the minimum of $52,255 (index 48.2) – as reference points. Always check with a tax professional and your employer to ensure the arrangement complies with super, award, and FBT rules. For more topics like this, visit topics.