How Does Salary Sacrifice Work? A Guide to Reducing Your Taxable Income

What Is Salary Sacrifice?

Salary sacrifice is an arrangement where you agree to give up part of your pre-tax salary in exchange for a benefit provided by your employer. Common benefits include extra super contributions, a car (via novated lease), electronic devices, or childcare fees. The idea is that by reducing your taxable income, you pay less income tax and the benefit is often taxed at a lower rate or not at all. But how does salary sacrifice work in practice? Let’s break it down.

How Salary Sacrifice Works in Australia

In Australia, salary sacrifice is governed by tax law and must be agreed in writing before you earn the salary you’re sacrificing. Your employer deducts the sacrificed amount from your gross pay and uses it to provide the benefit. Your taxable income falls, so your Pay As You Go (PAYG) withholding is lower. However, some benefits attract fringe benefits tax (FBT), which your employer may pass on to you.

The Role of Awards and the National Minimum Wage

You cannot salary sacrifice below the minimum cash pay required by your award or the national minimum wage. For example, from 1 July 2026 the national minimum wage is $26.44 per hour, or $1004.90 per week. Even with a salary sacrifice arrangement, you must receive at least that amount in cash. Award-covered employees also have minimum hourly rates that cannot be undercut.

Salary Sacrifice and the Salary Index

The Salary Index measures your gross ordinary-time earnings against the national line of 100, which is $108,352 per year (based on ABS Average Weekly Earnings, May 2026). Salary sacrifice does not change your gross ordinary-time earnings – those are the earnings before any sacrifice. So if your pre-sacrifice salary is $120,000, your index is around 110.7, regardless of how much you sacrifice. The index is a benchmark for your role’s market position, not your take-home pay.

Examples of Salary Sacrifice

Example 1: Salary Sacrifice into Super

Suppose you earn $100,000 per year (index 92.3). You agree to salary sacrifice $10,000 into your super. Your taxable income becomes $90,000, saving you about $3,000 in tax (at the 30% marginal rate plus Medicare). Your employer still pays the 12% super guarantee on your ordinary-time earnings of $100,000, but the sacrificed $10,000 counts toward that obligation. Your super balance grows faster.

Example 2: Novated Lease Car

You earn $85,000 (index 78.5). You salary sacrifice $15,000 for a car lease. Your taxable income drops to $70,000. The car benefit may attract FBT, but if you use the car mainly for work, the taxable value can be reduced. Your take-home pay is lower, but you get a car and pay less tax overall.

Tax and Super Considerations

Income Tax

Salary sacrifice reduces your taxable income, which can lower your marginal tax rate. For 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; and 45% above $190,000. Plus a 2% Medicare levy. By sacrificing, you might drop into a lower bracket.

Super Guarantee

Your employer must pay the super guarantee (12% from 1 July 2026) on your ordinary-time earnings. If you salary sacrifice into super, those contributions are part of the SG. But if you sacrifice for other benefits, your ordinary-time earnings for SG purposes may be reduced – check your award or agreement.

Fringe Benefits Tax

Some benefits, like cars or entertainment, attract FBT. Employers often pass the FBT cost to you via a reduction in your salary package. Others, like super contributions, are FBT-free. Always ask your employer how FBT is handled.

Limits and Rules

• Written agreement: Must be in place before you earn the salary.
• Minimum cash pay: Cannot fall below the national minimum wage or award rate.
• Concessional super cap: Salary sacrifice contributions count toward your $27,500 annual concessional cap (2026–27).
• Reportable fringe benefits: If the taxable value of fringe benefits exceeds $2,000, it appears on your payment summary and may affect your Medicare levy surcharge or family tax benefits.

How the Salary Index Relates

Your salary index is a snapshot of your gross pay relative to the national average. It’s useful for comparing roles across industries and states. For example, the mining industry index is 154.7, while retail trade is 75.9. Salary sacrifice doesn’t move your index, but it does change your effective tax rate and take-home pay. When negotiating a package, focus on the gross figure – that’s what determines your index. Then consider salary sacrifice as a way to optimise your net income.

For more on how pay is measured, see how the index works. If you’re comparing job offers, check the relevant pay guides for award rates and typical packages. And for state-by-state differences, visit our states page.

Final Thoughts

Understanding how does salary sacrifice work helps you make informed decisions about your pay package. It’s a legitimate way to reduce tax, boost super, or get benefits you’d otherwise pay for with after-tax dollars. But it’s not a magic bullet – you still need a solid gross salary to build your index and long-term wealth. Always read the fine print and consider speaking with a tax professional.