Should I salary sacrifice super? How your state and industry affect the decision

What does 'should I salary sacrifice super' mean?

Salary sacrifice super is an arrangement where you ask your employer to pay some of your before-tax salary into your superannuation fund, instead of giving it to you as cash. The amount you sacrifice is taxed in the super fund at only 15% (or 30% if you earn more than $270,830), which is often lower than your marginal income tax rate. The question 'should I salary sacrifice super' is really about whether the tax saving is worth the reduction in your take-home pay today.

Because the benefit depends on your marginal tax rate, your state and industry matter a lot. The Salary Index shows how average full-time earnings vary across Australia. If you work in a high-paying state or industry, you're more likely to be in a higher tax bracket, making salary sacrifice more attractive. If you're on lower pay, the benefit is smaller and you might prefer the cash now.

How state differences affect your decision

The national line (index 100) is $108,352 a year. But states differ:

• ACT (index 109.9, annualised $119,090) – many public servants and high earners.
• WA (index 106.9, $115,825) – mining and resources drive pay up.
• NSW (index 101.2, $109,658) – slightly above national average.
• VIC (index 98.0, $106,137) – just below.
• QLD (index 97.9, $106,064) – similar to Victoria.
• SA (index 94.6, $102,450) – below average.
• NT (index 95.2, $103,173) – also below.
• TAS (index 88.6, $96,008) – lowest average earnings.

If you live in Tasmania and earn the state average of $96,008, your marginal tax rate is 30% (plus 2% Medicare) for income above $45,000. Sacrificing $10,000 a year would save you about $3,200 in tax and Medicare. In the ACT, earning $119,090 puts you in the 37% bracket, so the same $10,000 sacrifice saves $3,900. That's an extra $700 a year just because of where you live.

But remember, these are averages. Your personal pay might be higher or lower. Check your own tax bracket using the pay guides for your award or industry.

How industry differences affect your decision

Industry pay varies even more than states. The industries page shows:

• Mining: index 154.7 – typical full-time worker earns about $167,600 a year. That puts them in the 37% or 45% tax bracket. Salary sacrifice super is very beneficial.
• Professional, scientific and technical: index 114.7 – around $124,300, still in the 37% bracket.
• Education and training: index 105.5 – about $114,300, mostly 30% or 37%.
• Health care and social assistance: index 97.8 – about $106,000, mostly 30% bracket.
• Retail trade: index 75.9 – about $82,200, mostly 30% bracket but some may be in the 15% or nil bracket.
• Accommodation and food services: index 72.5 – about $78,600, often in lower brackets.

A retail worker earning $82,200 is in the 30% bracket. Sacrificing $5,000 saves $1,600 in tax. A mining worker earning $167,600 is in the 37% bracket (and part in 45% if they earn over $190,000). The same $5,000 sacrifice saves $1,850 to $2,250. The higher your pay, the bigger the tax saving per dollar sacrificed.

But also consider your super guarantee. From 1 July 2026, the super guarantee is 12% of your ordinary-time earnings. Salary sacrifice contributions are in addition to the mandated 12%. They count towards the concessional contributions cap ($30,000 a year from 2026–27, indexed). If you exceed the cap, the excess is taxed at your marginal rate plus an interest charge, so don't overdo it.

Concrete examples

Example 1: WA mining engineer, $180,000 a year

• Marginal tax rate: 45% (income over $190,000) and 37% on the rest.
• Sacrifice $20,000 a year: saves about $8,600 in tax and Medicare.
• Take-home pay drops by about $11,400, but super gets $20,000 taxed at 15% (or 30% if over $270,830). Net benefit: you've effectively paid 15% tax instead of 37–45%.

Example 2: TAS retail manager, $85,000 a year

• Marginal tax rate: 30%.
• Sacrifice $10,000: saves $3,200.
• Take-home drops by $6,800. Still a good deal if you don't need the cash now.

Example 3: VIC hospitality worker, $60,000 a year

• Marginal tax rate: 15% on income between $18,201 and $45,000, then 30% on the rest.
• Sacrifice $5,000: the first $2,800 of that would have been taxed at 30%, the rest at 15%. Average saving about $1,100.
• Take-home drops by $3,900. The benefit is smaller, but still worthwhile if you want to boost super.

Tax and super rules to keep in mind

• Salary sacrifice super is taxed at 15% in the fund (or 30% if your income plus contributions exceed $270,830). That's usually lower than your marginal rate.
• The super guarantee (12%) is paid on your ordinary-time earnings before sacrifice. Your employer cannot reduce the mandated super because you salary sacrifice.
• You can also make after-tax contributions (non-concessional) but that's different.
• The ATO caps concessional contributions at $30,000 a year (2026–27). If you go over, the excess is added to your income and taxed at your marginal rate, plus an interest charge.
• Salary sacrifice reduces your taxable income, which can affect other things like the Medicare levy surcharge (if you earn over $93,000 single) or the low-income tax offset. Check your situation.

Should you do it?

If you can afford to live on less cash now and you're in a tax bracket above 15%, salary sacrifice super usually makes sense. The higher your pay (and therefore your state or industry average), the more you save. But if you're on the national minimum wage ($52,255 a year, index 48.2) or just above, your marginal rate is only 15% on most of your income, so the benefit is small. You might prefer the cash for rent or bills.

Also consider your age and goals. If you're young and want to buy a house, the First Home Super Saver Scheme lets you withdraw voluntary contributions (including salary sacrifice) for a deposit. That can be a good reason to sacrifice even on a lower income.

For personalised advice, talk to a financial adviser or use the ATO's online calculators. The topics page has more on super and tax strategies.

Final thought

'Should I salary sacrifice super?' is a question about your personal finances, not a one-size-fits-all answer. Use the state and industry indices as a rough guide to where your pay sits relative to the national line. The higher your index, the more you stand to gain from salary sacrifice. But always check your own numbers.