Is Salary Sacrificing Into Super Worth It?

Salary sacrifice means asking your employer to pay part of your salary straight into super — your retirement savings account — instead of your bank account. Those dollars skip income tax and pay a flat 15% when they land in your fund.

For most middle and high earners that's a genuine discount. The real question isn't whether it saves tax — it usually does — but whether you can live without the money until retirement.

Take a dollar as cash and it's taxed at your marginal rate — the tax rate on the last dollar you earn. For FY2025-26 that's 16% between $18,201 and $45,000, 30% between $45,001 and $135,000, 37% up to $190,000, and 45% beyond, plus the 2% Medicare levy most people pay — a small extra tax that helps fund public healthcare.

Salary sacrificed dollars pay a flat 15% instead when they land in your fund. That charge is called contributions tax — the toll for putting money into super.

Your saving per dollar is the gap between the two: your rate plus the Medicare levy, minus 15%. In the 30% bracket that's roughly 17 cents kept per dollar; in the 45% bracket, about 32 cents.

Say you earn $95,000 and sacrifice $10,000. At $95k you're in the 30% bracket; add the 2% Medicare levy and each of those dollars would normally hand 32 cents to the ATO — the Australian Taxation Office, aka the tax office.

Take the $10,000 as cash and you pocket $6,800. Route it through super and $8,500 lands in your fund — $1,700 more, a 25% instant head start before your fund earns a single dollar of returns. Repeat yearly and compounding — returns earning their own returns — takes it from there.

Salary sacrifice counts towards your concessional contributions cap — the yearly limit on before-tax money going into super. For FY2025-26 the cap is $30,000, and the compulsory 12% super your employer already pays shares the same cap.

On $95,000, employer super uses about $11,400 of it, leaving roughly $18,600 of room to sacrifice.

Super is locked away — the official word is 'preserved' — until preservation age, which is 60 for most people. You also need to meet a condition of release, jargon for an official unlocking event like actually retiring.

If you're 30, that's three decades where emergencies, house deposits, and career breaks can't touch it. The one notable exception is the First Home Super Saver scheme, which lets eligible first home buyers pull some voluntary contributions back out for a deposit.

Rule of thumb: only sacrifice money you're confident you won't need before retirement, and keep an emergency fund outside super.

If you earn over $45,000, have spare cash after the bills, and won't need the money early, the tax saving is immediate and guaranteed — rare in personal finance.

On a lower income, the gap between your rate and 15% shrinks or disappears, and the case weakens with it. And if you're saving for something in the next few years, keep that money where you can reach it.

Run your own numbers in our Salary Sacrifice Calculator — it takes about 30 seconds.