Every July I get the same question from first home buyers: should I be running my deposit through super? The First Home Super Saver Scheme has been around since 2017, it has not changed for FY2026-27, and yet almost nobody I sit across from actually understands what it does or who it is for. The scheme lets you make up to $15,000 of eligible voluntary super contributions per financial year, and withdraw up to $50,000 of them in total (plus deemed earnings) toward your first home deposit. The new-year hook is real: the concessional contributions cap rose from $30,000 to $32,500 on 1 July, and payday super started the same day, so there is more headroom to salary sacrifice into. But fresh room is not the same as a good idea. For the right saver the FHSSS beats an offset by thousands. For the wrong one it is a slower, clumsier version of a savings account with a queue attached. Let me show you which one you are.
The mechanic: why it saves tax at all
The whole engine is the difference between two tax rates. When you salary sacrifice into super, that money goes in as a concessional contribution and is taxed at 15 per cent inside the fund, instead of at your marginal rate on the way to your bank account. If you earn between $135,000 and $190,000, your marginal rate is 37 per cent plus the 2 per cent Medicare levy. So on the way in, you are swapping a 39 per cent haircut for a 15 per cent one. That gap is the prize. When you later pull the money out under the FHSSS for a deposit, the concessional portion is taxed again, but at your marginal rate less a 30 per cent offset. A 37 per cent taxpayer therefore pays 7 per cent (plus Medicare) on the way out, not 37. Add the 15 going in and the roughly 9 coming out and you are still miles ahead of the 39 you would have lost by saving the same dollars in your own name. The scheme is, at heart, a way to route deposit savings through the low-tax super environment and skim the difference.
The quirk everyone misses: you do not get your fund's return
Here is the part the brochures gloss over. The "earnings" you withdraw alongside your contributions are not your fund's actual investment return. They are calculated at the ATO deemed rate, which tracks the shortfall interest charge rate, not whatever your balanced option happened to do that year. If your fund returned 11 per cent and the deemed rate was 7, you keep the 7 on your FHSSS money. If your fund went backwards in a bad year, you still get credited the positive deemed rate, so it cuts both ways. The practical read: do not think of the FHSSS as a way to get sharemarket-level growth on your deposit. Think of it as a tax wrapper that pays you a modest, ATO-set interest rate on top of the tax saving. The tax saving is the reason to do it. The deemed earnings are a small bonus, not the point.
A worked example: $15,000 through FHSSS versus $15,000 in your offset
Take a saver on $140,000, so a 37 per cent marginal rate plus 2 per cent Medicare. She has $15,000 of pre-tax income she wants to put toward a deposit this financial year. Route one: she salary sacrifices the full $15,000 into super as a concessional contribution. The fund takes 15 per cent contributions tax, so $12,750 lands in her FHSSS balance. Route two: she takes the $15,000 as salary, pays 39 per cent on it, and is left with $9,150 to drop in her mortgage offset (or, pre-purchase, a high-interest savings account).
Before either dollar has earned a cent of interest, the FHSSS saver is $3,600 ahead: $12,750 sitting in super versus $9,150 in the bank. When she withdraws under the scheme, the concessional portion is taxed at her marginal rate less the 30 per cent offset, so roughly 9 per cent including Medicare. That clips the released contributions by about $1,150, leaving her near $11,600 plus deemed earnings in hand. The saver who went straight to the offset never gets that money back. On a single year's $15,000, the FHSSS route leaves this saver roughly $2,400 better off after all the tax, and that is before the deemed earnings the offset saver also forgoes. Run it across a couple of years of contributions toward the $50,000 cap and the gap becomes real deposit money.
Now flip the saver. Put someone on $50,000 through the same maths. Their marginal rate is 16 per cent plus Medicare. Salary sacrificing still costs 15 per cent contributions tax going in, so the tax saving is a rounding error, and the money is locked behind a release process for a benefit that barely clears the hassle. For them the offset wins on simplicity alone. Same scheme, opposite answer, and the only variable that changed was the tax bracket.
The timing traps that catch people
This is where I have watched good plans fall over, and it is almost always a sequencing failure, not a strategy one.
- You must apply for an FHSSS determination and then a release BEFORE you sign a contract to buy or build. Sign first and you are disqualified from releasing on that purchase. I have had clients who did years of the hard part (the contributions) and then blew it in the last fortnight by signing at auction on a Saturday before the release came through.
- Releases take time. Once you request a release the ATO and your fund work through it, and it commonly runs to a couple of weeks or more. You cannot request it Monday and settle Thursday. Build the release into your timeline before you are house-hunting, not after you have found the place.
- You can only use the scheme once. It is a one-shot release across your lifetime, so do not trigger it for a small purchase and burn the entitlement. Contribute toward the full $50,000 you intend to release before you pull the trigger.
- Only voluntary contributions count. Your employer's compulsory 12 per cent superannuation guarantee is not eligible; the SG stays at 12 per cent for FY2026-27 with no further rise scheduled. FHSSS is strictly the extra you put in yourself, salary-sacrificed or as personal deductible contributions.
Be honest about the trade-offs
The FHSSS is not free of downsides, and any adviser who pitches it as a no-brainer is skipping the fine print. Your money is genuinely locked: once it is a voluntary contribution inside super, you cannot get it back except through an FHSSS release for a first home, or the ordinary preservation rules decades from now. If life changes and you decide not to buy, that cash is stuck in super until retirement. An offset, by contrast, is your money the day you want it, working against your loan at your full home-loan rate rather than an ATO deemed rate. There is also the cap ceiling: the $15,000-a-year and $50,000-total limits mean the FHSSS can only ever be one slice of a real Sydney or Melbourne deposit, not the whole thing. And it stacks against your concessional cap, so if you are already salary sacrificing hard for retirement, your FHSSS contributions eat into the same $32,500 room. It is a good tool inside a bracket and a timeline, and a mediocre one outside them.
Who it suits, and who should skip it
It suits the higher earner with salary-sacrifice room and a runway of at least twelve months before they buy. If you are on $130,000 or more, you have spare concessional cap after your employer's SG, and you are not planning to sign a contract in the next couple of months, the FHSSS is close to free money on the tax side. It stacks cleanly with the First Home Guarantee (5 per cent deposit, LMI waived, no place caps this year) and with Help to Buy (the shared-equity scheme where the Commonwealth takes an equity share): the FHSSS is about how you build the deposit tax-efficiently, those schemes are about how little deposit you need, and they do not conflict.
Skip it if you earn near the tax-free threshold or in the 16 per cent bracket, because the tax arbitrage is too thin to justify locking your money away. Skip it if you are buying in the next couple of months, because the release timing will trip you up. And skip it if you have no other savings buffer, because deposit money you might need for a broken-down car or a job gap should not be behind a super release queue. For those savers, a mortgage offset once you buy, or a high-interest savings account before you do, is the honest answer.
What you should actually do
Start with your marginal tax rate, not the scheme. If you are on 37 per cent or above and you are at least a year out from buying, set up a salary-sacrifice arrangement now, at the start of the financial year, so you can put in up to $15,000 of eligible contributions this year without breaching the $32,500 concessional cap. Confirm the number with the ATO's FHSSS pages and your fund before you lodge anything, because the cap and your existing SG interact. Then, and this is the part people get wrong, apply for your FHSSS determination and request the release BEFORE you go to auction or sign a contract, and give it at least a couple of weeks to land. If you are on a low or middle income, or you are buying within a couple of months, do not force the scheme: park your deposit in a high-interest account now and an offset the day you settle, and put your energy into the First Home Guarantee instead. The FHSSS is a scalpel, not a hammer. Use it where the bracket and the calendar both say yes.
Disclosure: Your Finance Guide partners with Australian Lending and Investment Centre (ALG) ACL 505575 for broker matching, and ALG receives lender commissions on settled loans. The FHSSS itself pays a broker nothing: it is a tax strategy run through the ATO and your super fund, not a loan product. We flag it anyway because the saver who builds a bigger, cheaper deposit is the saver who gets the better loan, and that is the only outcome that matters here. This is general information, not personal tax or financial advice; confirm the current caps, deemed rate and eligibility with the ATO and a licensed adviser before acting.