Methodology · AU-HOME-019
Home Deposit Calculator
Work out the deposit needed for a property price at your chosen loan-to-value ratio, alongside the upfront costs you enter.
Engines and formulas
- E01 · Core money and period engine
Integer-cent money arithmetic and explicit period conversions (52 weeks, 26 fortnights, 12 months per year).
Verification
Engines carry boundary tests at every bracket edge, property-based tests, reconciliation invariants and, where official worked examples exist, tests that reproduce them exactly. The full source register is on the sources page.