If you’ve spent any time researching the First Home Super Saver Scheme (FHSS), you’ve probably hit the same question most people do eventually: “Is this actually worth using?”
The rules can feel slightly opaque at first. There are contribution caps, release limits, tax offsets and ATO calculations layered on top of normal super rules. Then there’s the bigger question underneath all of it…
Would using the FHSS scheme actually leave you with a larger deposit than simply investing outside super?
That’s the gap Pearler’s FHSS Calculator is trying to fill. Rather than only estimating how much you might be able to withdraw from super, the calculator compares two different approaches side-by-side:
- Saving and investing through FHSS
- Investing outside super in a regular brokerage account
It then models how taxes, investment growth and contribution limits may affect your final deposit amount over time.
The result is less of a simple “FHSS withdrawal estimator” and more of a long-term comparison tool. Here’s how it works.
What the First Home Super Saver calculator is actually comparing
A lot of FHSS calculators focus on a single number: your estimated releasable amount. That’s useful, but it only tells part of the story.
Pearler’s calculator takes a broader approach by comparing the overall after-tax outcome of investing inside versus outside super using the same savings amount.
In practice, that means it models:
- Concessional contribution tax
- Investment earnings tax
- Tax refunds from deductible contributions
- Capital gains tax
- FHSS withdrawal tax offsets
- Contribution caps and limits
So rather than asking, “How much can I withdraw?”, the calculator is really helping you compare. The question it poses is, “If I save the same amount of money either way, which structure could potentially leave me with more cash for a home deposit?”
A quick refresher on how FHSS works
The First Home Super Saver Scheme allows eligible first-home buyers to make voluntary super contributions and later apply to release some of those contributions, plus associated earnings.
The idea behind the scheme is fairly straightforward: super is taxed differently from ordinary income, so using super as a temporary savings vehicle may improve long-term outcomes for some buyers.
A few FHSS terms matter here:
- Concessional contributions: Pre-tax contributions like salary sacrifice or deductible personal contributions
- Non-concessional contributions: After-tax voluntary contributions
- Associated earnings: A deemed earnings amount calculated by the ATO
- Releasable amount: The amount the ATO allows you to withdraw
One important distinction is that your FHSS withdrawal is not simply your super balance. Only certain voluntary contributions count toward the scheme. Employer Super Guarantee contributions, for example, generally don’t count toward your releasable FHSS amount.
Why the calculator focuses so heavily on FHSS tax
Most of the potential benefit from FHSS comes down to tax treatment.
Under the assumptions used in Pearler’s calculator, concessional contributions are generally taxed at 15% inside super, while your ordinary income may be taxed at a higher marginal rate. That difference can create a fairly meaningful gap over time.
For example, someone earning enough to sit in a 30% marginal tax bracket may effectively receive a tax advantage when making concessional contributions through super rather than investing the same money outside super.
Pearler’s calculator also assumes any tax refund generated from claiming deductible contributions is reinvested. That’s an important detail because it means the refund itself also has time to compound.
None of this guarantees FHSS will outperform investing outside super. But it helps explain why the scheme exists in the first place: the tax treatment inside super is often more favourable than outside it.
The calculator compares investing inside and outside super
Another useful aspect of Pearler’s calculator is that it models how investment earnings are taxed under both structures.
Outside super:
- Dividends are generally taxed at your marginal tax rate
- Capital gains tax may apply when investments are sold
Inside super:
- Investment earnings are generally taxed at 15%
- FHSS withdrawals follow different tax treatment from ordinary CGT
Those differences can become more noticeable over longer periods because taxes affect not only returns, but also the amount left invested and compounding each year.
The calculator applies the same assumed investment returns to both scenarios so the comparison focuses primarily on structural tax differences rather than investment selection.
FHSS caps still matter
One thing the calculator does well is showing how FHSS limits affect the outcome.
The scheme isn’t unlimited. There are annual contribution limits, lifetime caps and broader concessional contribution caps that all interact with each other.
Employer super contributions also reduce available concessional contribution room. This catches a lot of people out because their super account may appear to have plenty of money sitting inside it, while their actual FHSS releasable amount is much smaller.
Pearler’s calculator factors these limits into the modelling automatically so users can see where contributions begin spilling outside super.
A hypothetical example using Pearler’s default assumptions
The calculator includes a default scenario to demonstrate how the numbers work.
That example assumes:
- A $90,000 salary
- A $20,000 starting amount
- $1,000 monthly contributions
- A five-year saving period
- 5% annual capital growth
- 2% dividend yield
Under those assumptions, the calculator estimates:
- Approximately $97,413 when investing outside super
- Approximately $106,988 using FHSS
That’s a projected difference of around $9,575 in favour of FHSS in this particular scenario.
The difference mainly comes from:
- Concessional tax treatment on contributions
- Lower tax on investment earnings inside super
- The FHSS withdrawal tax offset
Again, these are modelled, potential outcomes rather than promises. The calculator is showing how the structure works under a consistent set of assumptions, so your actual result may look different.
The calculator also compares proposed CGT changes
One slightly unusual feature of Pearler’s calculator is that it compares investing outcomes under different capital gains tax systems.
Specifically, it compares:
- The current 50% CGT discount method
- Proposed post-2027 CGT rules (learn more about these in this 2026 budget breakdown )
- FHSS outcomes under those scenarios
This matters because tax treatment outside super can materially affect long-term after-tax returns.
The calculator uses those comparisons to highlight how structural tax differences may widen or narrow depending on future policy settings.
One important nuance: FHSS earnings aren’t calculated this way in reality
Pearler is fairly transparent about one major simplification in the model.
In reality, the ATO calculates FHSS-associated earnings using a deemed rate called the Shortfall Interest Charge (SIC), not your actual investment returns.
Pearler’s calculator instead applies your selected investment return assumptions to both FHSS and non-super investments so the comparison remains consistent. That means the tool is primarily designed to compare structures rather than replicate an exact future FHSS release amount.
In practice, actual FHSS releasable amounts may end up lower than the projections shown if investment returns exceed the ATO’s deemed earnings rate.
Why the estimates shouldn’t be treated as predictions
Pearler is also pretty explicit that the calculator is illustrative only. Real-world outcomes can differ because the model simplifies or excludes factors like:
- HECS/HELP repayments
- Franking credits
- Brokerage fees
- Medicare levy
- Changing incomes
- Legislative changes
- Variable market returns
And, obviously, investment returns themselves are unpredictable. Two people with identical contributions could still end up with very different outcomes depending on timing, investment choices and future tax settings.
FHSS isn’t automatically better
One of the neatest aspects of the calculator is that it doesn’t really present FHSS as a universally superior strategy. Instead, it makes the trade-offs easier to see.
Saving outside super may offer:
- Easier access to funds
- More flexibility
- Fewer administrative steps
FHSS may offer:
- Concessional tax treatment
- Potentially stronger after-tax outcomes
- More structure around long-term saving
But it also comes with:
- Contribution caps
- Eligibility requirements
- Withdrawal timing rules
- Extra complexity
For some buyers, the tax advantages may clearly outweigh those downsides. For others, simplicity and flexibility may matter more. The calculator doesn’t really try to make that decision for you. It just helps model the trade-offs more clearly.
The broader point of the calculator
What Pearler’s FHSS calculator does particularly well is shift the conversation away from a single withdrawal number and toward overall outcomes. That’s useful because FHSS decisions are rarely isolated.
Most first-home buyers are balancing multiple goals simultaneously:
- Saving a deposit
- Investing long-term
- Managing cash flow
- Thinking about tax
- Trying not to lock away too much flexibility
The calculator gives users a way to compare those structures using the same contribution amounts and growth assumptions.
And while no calculator can perfectly predict the future, having a clearer sense of how different systems work together can make the whole FHSS decision feel a lot less abstract.
General information disclaimer
This article is for general informational purposes only and does not take into account your objectives, financial situation or needs. Investing involves risk, including the risk of loss. Rules, products and market conditions can change, so consider seeking advice from a licensed professional and checking relevant official sources before making decisions.
