Salary Sacrifice vs Personal Contributions: Which Is Better for FHSS?

Last updated: May 2026 · Reading time: 5 minutes

When you're using the First Home Super Saver scheme, you have two main ways to make voluntary contributions: salary sacrifice (pre-tax) or personal deductible contributions (after-tax, then claim a deduction). Both get the same end tax treatment under FHSS. The differences are practical — timing, admin, and cash flow control.

This guide explains both, when to use each, and the one important gotcha with salary sacrifice that most people miss.

General information only. Not personal financial advice. Your optimal contribution strategy depends on your personal tax situation. Consult a registered financial adviser or tax agent.

Quick comparison

	Salary sacrifice	Personal deductible contribution
Tax treatment	Pre-tax: you never see the money	After-tax: you contribute, then claim deduction
When tax benefit is received	Immediately — lower tax on each payslip	At tax return time
Admin	Requires employer setup	You control it — direct bank transfer to fund
Timing control	Up to employer's payroll cycle	You decide exactly when
FHSS tax treatment	Concessional — 85% released	Concessional — 85% released (same)
Key risk	Employer pays quarterly, may slip into next FY	Must lodge Notice of Intent before applying for FHSS determination

Salary sacrifice: the simple version

Salary sacrifice means you ask your employer to redirect a portion of your pre-tax pay directly into your super fund before income tax is calculated on it. The contribution is taxed at 15% in your fund instead of your marginal rate.

The tax saving is immediate. Each payslip, you pay less income tax because your taxable salary is lower. If you're in the 32.5% bracket, you're saving 17.5 cents on every dollar sacrificed.

How to set it up: Talk to your employer's payroll or HR team. They'll need you to fill in a form specifying the dollar amount or percentage you want redirected, and your super fund's details. Some employers have minimum amounts or restrictions — worth checking upfront.

The catch with quarterly payments: Employers are legally required to pay SGC to your fund quarterly (and by the following month — so the October–December quarter is due by January 28). For salary sacrifice, the same quarterly timing often applies unless your employer pays more frequently.

This matters for FHSS because the $15,000 annual cap is based on the financial year the contribution is received by your fund — not when your payslip is processed. If your employer processes your December salary sacrifice but doesn't pay your fund until late January, that contribution counts toward the next financial year's cap. Near the end of June, this is a real risk.

Personal deductible contributions: the flexible option

A personal deductible contribution works differently. You transfer money from your bank account directly to your super fund (after you've already paid income tax on it), then at tax return time you lodge a Notice of Intent to Claim a Deduction with your fund. This converts it into a concessional contribution — your fund pays 15% tax on it, and you get a tax deduction at your marginal rate.

The net effect is the same as salary sacrifice — you've paid 15% tax on that money instead of your marginal rate. The mechanics are just different.

Why use this instead of salary sacrifice?

You control the timing precisely. You decide exactly when to transfer and how much. No relying on your employer's payroll cycle. This is especially useful near 30 June if you want to top up a specific financial year's FHSS amount.
Your employer doesn't need to be involved at all. If your employer doesn't offer salary sacrifice, or it's complicated to set up, personal contributions are the alternative.
You can make one-off contributions. Salary sacrifice tends to be a fixed ongoing arrangement. Personal contributions let you contribute a lump sum whenever it suits — useful if your income is variable.

The catch: You must lodge the Notice of Intent with your super fund before you apply for an FHSS determination from the ATO. If you forget this step, those contributions are treated as non-concessional (after-tax) — you'll get them back at 100% but lose the tax deduction. It's a procedural step that's easy to miss.

Which one should you use?

Use salary sacrifice if:

Your employer supports it easily and there's no complicated setup
You earn a steady income and want to automate contributions
You're contributing consistently throughout the year (not just in June)
You want the tax saving to show up in your pay packet immediately

Use personal deductible contributions if:

Your employer doesn't offer salary sacrifice or makes it difficult
You want precise control over when contributions hit your fund
You're self-employed or have variable income
You're close to 30 June and want to top up the current financial year's FHSS amount
You're making a one-off lump sum contribution

Many people use both. Salary sacrifice throughout the year for the regular automated saving, then a personal deductible contribution in May or June to top up to the $15,000 annual cap if there's remaining headroom.

What about non-concessional (after-tax) contributions?

You can make non-concessional contributions for FHSS purposes — these are after-tax contributions where you don't claim a tax deduction. They're released at 100% (no contributions tax was taken going in).

However, there's no income tax benefit on the way in. You're contributing money you've already paid full income tax on. The only benefit is the deemed earnings rate applied at release (currently around 6.61% p.a.) which is often higher than a savings account.

For most people in any meaningful tax bracket, concessional contributions are significantly better. Non-concessional FHSS contributions mainly make sense if you've already maxed out your concessional cap and still want to contribute more.

The concessional cap: don't go over

Both salary sacrifice and personal deductible contributions count toward the $30,000 annual concessional cap — and so does your employer's SGC.

If you earn $90,000, your employer contributes about $10,800 in SGC (12% from 1 July 2025). That leaves $19,200 of concessional headroom. The FHSS annual cap of $15,000 kicks in first, so your effective FHSS maximum is $15,000 per year.

If you earn more — say $180,000 — your SGC is around $21,600, leaving only $8,400 of concessional headroom. Your FHSS contributions would be limited to $8,400 per year in that case, not $15,000.

Going over the concessional cap triggers excess contributions tax at your marginal rate (with an offset for the 15% already paid). The FHSS calculator shows your concessional headroom based on your income so you can contribute the right amount.

One more thing: HECS/HELP repayments

If you have a HECS or HELP debt, be aware that salary sacrifice contributions reduce your taxable income — but your HELP repayment obligation is calculated on your income plus reportable fringe benefits, which includes salary sacrifice amounts. You may end up with a HELP bill at tax time even though your pay packet was lower.

This doesn't affect whether FHSS is worth doing — for most people it still is — but it's worth factoring into your cash flow expectations if you carry a HELP debt.

Coming up to June 30? Personal deductible contributions are usually the fastest way to top up your FHSS amount before EOFY — no employer setup required. See the EOFY deadline guide →

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General information only. Not personal financial advice. All figures are estimates based on current ATO rules as of May 2026. Contribution caps and SGC rates may change. Consult a registered financial adviser or tax agent before making superannuation decisions.