First Home Super Saver (FHSSS) Calculator Australia โ FY 2025-26
Calculate your FHSSS deposit savings, tax advantages over regular savings, and plan contributions as a couple for up to $100,000 combined.
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How to Use This Calculator
Tab "FHSSS Calculator"
Select your contribution type (salary sacrifice, personal deductible, or after-tax), enter your annual contribution (max $15,000/year), years of saving, and your marginal tax rate under "More options." The calculator shows total contributions, the amount eligible for release (capped at $50,000), tax saved while contributing, tax on withdrawal, and your net FHSSS amount available for a home deposit.
Tab "FHSSS vs Bank"
Compare the FHSSS to a regular savings account. Enter your monthly savings amount, savings account rate, marginal tax rate, and years. See the FHSSS balance after tax vs. bank savings after tax on interest, the dollar advantage, and the effective return of the FHSSS path.
Tab "Couple Planner"
Plan FHSSS contributions as a couple. Enter each partner's annual contribution, years of saving, and marginal tax rates. See the combined FHSSS amount (up to $100,000), total tax saved, net combined amount, and the property price this deposit could support at a 20% deposit.
The Formulas
Tax saved = contribution x (marginal_rate - 15%)
Example: $15,000 x (30% - 15%) = $2,250 saved per year
Release amount (concessional):
Release = contributions x 85% + associated earnings
Associated earnings = contributions x SRT rate x avg years in fund
Release amount (non-concessional):
Release = contributions x 100% + associated earnings
Tax on withdrawal (concessional):
Tax = release_amount x max(0, marginal_rate - 30%)
At 30% marginal rate: 30% - 30% = 0% tax
At 37% marginal rate: 37% - 30% = 7% tax
At 45% marginal rate: 45% - 30% = 15% tax
FHSSS caps:
Maximum per year: $15,000
Maximum total: $50,000 (individual) / $100,000 (couple)
Only voluntary contributions (NOT employer SG)
The associated earnings rate is based on the 90-day Bank Bill rate plus 3 percentage points (the SRT shortfall interest charge rate). Employer SG contributions are never eligible for FHSSS release.
Example
Mia โ Nurse Earning $85,000, Saving for First Home
Salary sacrificing $15,000/year for 3 years. Marginal tax rate: 30%. Total super balance not relevant (FHSSS is separate).
Mia's salary sacrifice reduces her taxable income by $15,000/year, saving $2,250/year in tax (the difference between her 30% marginal rate and the 15% super contributions tax). After 3 years, 85% of her $45,000 ($38,250) plus associated earnings is released. At a 30% marginal rate, the 30% tax offset means zero tax on withdrawal โ she keeps the full release amount.
FHSSS Key Limits
| Item | Limit |
|---|---|
| Maximum voluntary contribution per year | $15,000 |
| Maximum total eligible (individual) | $50,000 |
| Maximum total eligible (couple) | $100,000 |
| Concessional release rate | 85% of contributions |
| Non-concessional release rate | 100% of contributions |
| Contributions tax (inside super) | 15% |
| Withdrawal tax offset | 30% (marginal rate minus 30%, min 0%) |
| Time to purchase after determination | 12 months (extendable to 24) |
| Number of withdrawals | One (single lump sum) |
| Employer SG eligible? | No |