Salary Sacrifice Super Australia 2026: The Legal Tax Strategy Most People Ignore

Salary sacrificing into superannuation is one of the most straightforward tax strategies available to ordinary Australians — and one of the least used. The maths is simple: instead of paying your marginal tax rate on income that goes into super, you pay 15 per cent. For someone earning $100,000, that’s the difference between a 34.5% effective rate and a 15% rate — a saving of 19.5 cents in every dollar you put in. Here’s how it works in 2026, the limits to know, and the traps to avoid.

General information only. Not financial advice. Consult a licensed financial adviser for advice specific to your situation.

Table of Contents

• How salary sacrifice into super works
• The $30,000 concessional cap and carry-forward rules
• What the tax saving actually looks like in dollars
• The gotchas: what salary sacrifice doesn’t do
• Payday super from 1 July 2026: what changes
• Frequently asked questions

How Salary Sacrifice Into Super Works

Salary sacrifice (also called “salary packaging”) is an arrangement where you ask your employer to redirect a portion of your pre-tax salary into your super fund instead of paying it to you as income. The redirected amount goes into your super as a “concessional contribution” — meaning it’s taxed at 15 per cent inside the fund, rather than at your marginal income tax rate. ^[1]For a person earning $90,000 with a marginal tax rate of 34.5% (including the 2% Medicare levy), the comparison looks like this:

• Take $10,000 as income: pay $3,450 in tax → receive $6,550 net → invest or save it elsewhere.
• Salary sacrifice $10,000 into super: pay $1,500 in contributions tax → the full $10,000 enters your super → $8,500 remains after contributions tax, compounding inside super.

The difference: $8,500 compounding inside super versus $6,550 compounding outside it. That’s a $1,950 head start on the same $10,000 before it earns a single dollar of return. ^[1]

The $30,000 Concessional Cap and Carry-Forward Rules

Concessional contributions — which include both employer SG contributions and any salary sacrifice — are capped at $30,000 per financial year from 1 July 2024. ^[2] This is a combined cap: if your employer contributes 12% of your $80,000 salary ($9,600), your salary sacrifice room is $30,000 minus $9,600 = $20,400.Contributing above the cap attracts “excess concessional contributions tax” — the excess is included in your assessable income and taxed at your marginal rate, with a 15% tax offset to account for the contributions tax already paid. Effectively, you end up paying your marginal rate as if you’d taken the money as income. So breaching the cap doesn’t destroy value, but it eliminates the benefit of salary sacrifice for that amount. ^[2]The carry-forward rule allows unused concessional cap space from the previous five financial years to be accessed in a single year — but only if your total super balance at the end of the prior financial year was below $500,000. ^[3] This is particularly useful for people who took time out of the workforce (e.g. for caregiving or study) and want to catch up before retirement.

What the Tax Saving Actually Looks Like in Dollars

Using the ATO’s published marginal tax rates for 2025–26, the annual tax saving from maxing out salary sacrifice (to the extent possible within the $30,000 cap, net of SG) looks like this for common income brackets: ^[1]

• $60,000 salary (marginal rate 34.5%): sacrificing an extra $12,800 (after employer’s 12% SG) saves approximately $2,496 in tax per year.
• $100,000 salary (marginal rate 39%): sacrificing an extra $18,000 saves approximately $4,320 in tax per year.
• $150,000 salary (marginal rate 45%): sacrificing an extra $12,000 (cap reached earlier by SG) saves approximately $3,600 per year — but note the Division 293 tax of 15% applies to high earners, effectively bringing contributions tax to 30%.

Note: Division 293 tax applies to concessional contributions for people earning above $250,000, raising their effective contributions tax to 30%. Salary sacrifice still delivers a tax benefit for these earners, but a smaller one. ^[4]

The Gotchas: What Salary Sacrifice Doesn’t Do

• It does not reduce your employer’s SG obligation (in most cases). Your employer must calculate and pay SG on your “ordinary time earnings” — which, for most workers, is the pre-sacrifice salary. This was clarified by legislation in 2019. However, some employment agreements define “ordinary time earnings” differently. Check your contract. ^[5]
• It reduces your take-home pay. The money is locked in super until a condition of release (usually retirement at preservation age). Make sure you can afford the reduction in take-home pay before committing.
• It doesn’t help with the income test for some government payments. Salary sacrifice reduces your taxable income, which can affect entitlements to certain means-tested benefits. Check with Centrelink or a financial adviser if this is relevant to you.
• You need your employer to agree. Salary sacrifice is a voluntary arrangement that requires employer cooperation. Most employers will accommodate it, but they’re not legally required to offer it. Get the arrangement in writing before it takes effect.

Payday Super From 1 July 2026: What Changes

From 1 July 2026, employers will be required to pay super at the same time as wages — the “payday super” reform. ^[6] For salary sacrifice arrangements, this means your salary sacrifice contributions will also be processed more frequently (at each pay cycle rather than quarterly), which has two benefits:

• Faster compounding: Contributions entering your fund at each pay cycle start earning returns immediately, rather than sitting with your employer for up to three months.
• Earlier detection of unpaid contributions: Your fund will receive contributions at each pay cycle, making it easier to spot if your employer fails to pay.

Frequently Asked Questions

How do I set up salary sacrifice?

Contact your HR or payroll team and request a salary sacrifice arrangement. Complete the nomination form specifying the dollar amount or percentage to redirect to super. Get it in writing before your next pay cycle.

Is salary sacrifice into super worth it?

For most people earning above $45,000, yes. The tax saving compounds inside super for decades. Even $5,000/year in sacrifice can add tens of thousands at retirement — but only if you’re in a well-performing, low-fee fund and can afford the reduction in take-home pay.

What’s the concessional cap in 2026?

$30,000 per financial year (from 1 July 2024). This includes employer SG, salary sacrifice, and any other before-tax contributions. Exceeding the cap means excess contributions are taxed at your marginal rate (with a 15% offset).

Does salary sacrifice reduce my employer’s SG?

For most workers, no — since 2019 legislation, SG must be calculated on earnings before salary sacrifice. But some older contracts may differ. Check your employment agreement to be sure.

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Sources

1. ATO, Salary sacrificing super. ato.gov.au
2. ATO, Concessional contributions cap 2024–25. ato.gov.au
3. ATO, Carry-forward concessional contributions. ato.gov.au
4. ATO, Division 293 tax. ato.gov.au
5. Treasury Laws Amendment (2019 Tax Integrity and Other Measures No. 1) Act 2019. legislation.gov.au
6. Treasury, Securing Australians’ Superannuation (Payday Super), May 2023. treasury.gov.au