First Home Super Saver (FHSS) Estimator: Australia, Excel

NEW: Google Sheets edition included.

Find out how much you could release from super for your first home deposit under the First Home Super Saver scheme, the tax you'd pay on the release, and how much more (or less) you'd end up with than saving the same money in a bank account.

Enter your income, the date you plan to request your FHSS determination and what you'll salary sacrifice or contribute after tax each year. The workbook gives you:

• Your maximum releasable amount: 85% of your counted salary sacrifice and deductible contributions, plus 100% of after-tax contributions, plus deemed earnings
• Deemed earnings worked out the ATO way: the shortfall interest charge rate, compounded daily from the month of each contribution, using every published quarterly rate since July 2017
• The tax on the release: your marginal rate including Medicare, less the 30% FHSS offset
• FHSS vs a bank account: the same pre-tax salary, saved either way, after every tax along the road
• Your dates: request the release by, the earliest contract date that still counts (90 days before), sign a contract by (12 months after), tell the ATO by (90 days after signing), using the rules in force since 15 September 2024
• The limits applied for you: $15,000 from any one financial year, $50,000 in total, counted first in, first out the way the ATO does it (same-day contributions count after-tax first), and nothing counted above your contribution caps

Includes a worked example (Example: Alex, $85,000 salary, $12,000 salary sacrifice plus $3,000 after tax a year for three years), a Dashboard, a Timeline chart, year-by-year workings, a Checks tab and a Notes & Sources tab with every ATO and legislation link, checked 28 October 2026 (version 1.1).

Built and checked by a CPA. Every formula tested against a separate calculation.

What you get: one Excel workbook (.xlsx). Works in Microsoft Excel 2019 or later, Microsoft 365 and Excel for the web; also opens in LibreOffice.

Designed by Plain Numbers Co with the help of AI tools. Listing images are designed previews of the actual file.

30-DAY MONEY-BACK GUARANTEE: if it doesn't work for your situation, message us within 30 days. We'll fix it, or refund you in full if you'd rather. This is in addition to your rights under the Australian Consumer Law, which are not excluded.

General information only, not personal financial or tax advice. The results are estimates based on the figures you enter and the rules as at the date checked. Check with a registered tax agent, a licensed financial adviser or the ATO before acting.