Salary Sacrifice Calculator
See exactly how much tax you save by salary sacrificing into super. Compare your take-home pay before and after, with 2025–26 tax rates and the $30,000 concessional cap built in.
Salary sacrifice lets you redirect pre-tax salary into your super, taxed at just 15% instead of your marginal rate. Enter your details to see your tax saving, the hit to your take-home pay, and your boosted super contribution.
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What is a Salary Sacrifice Calculator?
A salary sacrifice calculator shows how much income tax you save by redirecting part of your pre-tax salary into your superannuation instead of receiving it as cash. Salary sacrifice — also called salary packaging into super — is one of the most powerful and accessible tax strategies available to Australian employees, yet most people never use it because they don’t realise how much they’re leaving on the table.
The mechanism is simple but the savings are significant: instead of your salary being taxed at your marginal rate (up to 47% including Medicare), the sacrificed amount is taxed at just 15% when it enters super. For someone on the 32% marginal rate, that’s an instant 17 cents saved on every dollar — money that goes into your retirement savings instead of to the ATO.
How Does Salary Sacrifice to Super Work?
You agree with your employer to give up (sacrifice) part of your gross salary before tax is calculated. That amount goes straight into your super fund as a concessional contribution, taxed at 15% on the way in. The rest of your salary is taxed normally — but at a lower amount, because your taxable income has dropped.
Example — $10,000 sacrificed on a 32% marginal rate:
Tax you would have paid: $10,000 × 32% = $3,200
Contributions tax in super: $10,000 × 15% = $1,500
Net tax saving: $3,200 − $1,500 = $1,700 per year
Take-home pay only drops by: $10,000 − $3,200 = $6,800
But $8,500 lands in super (after 15% tax)
How to Use This Salary Sacrifice Calculator
Enter your annual gross salary and the amount you want to salary sacrifice each year. Add your existing employer super contributions (or leave blank to auto-estimate at the 11.5% Super Guarantee rate) — this matters because employer super plus your sacrifice must stay under the $30,000 concessional cap. Indicate whether you have a HECS-HELP debt. Hit calculate to see your tax saving, the real drop in your take-home pay, how much extra lands in super, and a full before-and-after comparison.
What Your Results Mean
The headline tax saving is the difference between the tax you’d pay on that money as salary versus the 15% contributions tax in super. The take-home pay drop is smaller than the amount sacrificed — because you were going to lose some of it to tax anyway. The cost per $1 in super is the killer figure: it shows how little of your take-home pay it actually costs to put a dollar into super. On higher incomes this can be as low as 53 cents per dollar.
Is This Calculator Accurate?
It uses the exact 2025–26 resident tax brackets, the 2% Medicare levy, the $30,000 concessional cap, 15% contributions tax, and Division 293 (an extra 15% for incomes over $250,000). It doesn’t model carry-forward unused concessional caps (which let you contribute more than $30,000 if you have unused cap from the past five years), the Low Income Super Tax Offset, or your fund’s investment returns and fees. For standard salary sacrifice decisions it’s a close estimate — verify with your accountant before committing.
How to Choose Your Inputs
Salary: Use your gross salary excluding super. Sacrifice amount: Start with what you can afford to lose from take-home pay, then check the cap. Employer super: Check your payslip — the Super Guarantee is 11.5% in 2025–26 (rising to 12% from 1 July 2026), and this counts toward your cap. The cap: Your employer super plus your sacrifice can’t exceed $30,000 per year without extra tax — the calculator warns you if you’re over.
Why Salary Sacrifice is Australia-Specific
Salary sacrifice into superannuation is a distinctly Australian tax structure tied to our compulsory super system and the concessional contribution rules set by the ATO. While other countries have salary-deferral retirement schemes (like the US 401(k) or UK pension salary sacrifice), the specific mechanics — the 15% contributions tax, the $30,000 concessional cap, Division 293, and the interaction with the Super Guarantee — are unique to the Australian system. This calculator is built specifically for Australian employees and uses current ATO rates and thresholds.
Suitable for Women
Yes — and salary sacrifice is a particularly important tool for women, who retire with around 23% less super than men on average due to career breaks and the gender pay gap. Sacrificing even small amounts consistently during working years compounds significantly over time. Women returning to work after parental leave can use carry-forward unused concessional caps (from up to five previous years) to make larger catch-up contributions in higher-earning years — a powerful way to rebuild super after time out of the workforce.
Suitable for Men
Yes — men on middle to high incomes get the largest dollar benefit from salary sacrifice because their marginal rates are higher. The strategy is most effective in peak earning years (40s and 50s) when income — and therefore the tax saving — is highest. High earners should watch the Division 293 threshold ($250,000): above it, contributions are taxed at 30% instead of 15%, which halves the benefit but still leaves salary sacrifice worthwhile versus the 47% top marginal rate.
Common Mistakes to Avoid
- Exceeding the $30,000 concessional cap. Employer super counts toward it — go over and the excess is taxed at your marginal rate plus an interest charge.
- Forgetting it’s an agreement before earning. Salary sacrifice must be arranged with your employer before you earn the income — you can’t retrospectively sacrifice salary already paid.
- Assuming it always beats personal deductible contributions. Personal deductible contributions achieve a similar outcome and offer more flexibility if your employer won’t offer salary sacrifice.
- Ignoring preservation. Money in super is locked away until preservation age (60) — don’t sacrifice money you’ll need before then.
- Not checking it doesn’t reduce employer super. Some older agreements calculate Super Guarantee on the post-sacrifice salary — confirm your employer pays super on your full pre-sacrifice salary.
Limitations of This Calculator
This calculator handles standard salary sacrifice into super. It does not model carry-forward unused concessional caps, the Low Income Super Tax Offset (LISTO), salary sacrifice for non-super benefits (cars, devices, FBT items), the government co-contribution, or spouse contribution strategies. It also assumes your employer pays Super Guarantee on your full pre-sacrifice salary. For official guidance, see the Moneysmart super contributions guide and the ATO.
Frequently Asked Questions
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