Property calculators are only useful when their assumptions are visible. The 23 calculators on this hub show their inputs, methodology and limitations, and the state-based tax tools identify the official sources used for rates and thresholds. Formula-heavy tools have automated tests for representative and boundary scenarios. Nothing is gated through lead capture, and the site does not recommend a specific lender.
The hub covers several stages of an Australian property decision. On the borrowing side, the mortgage repayment calculator models principal-and-interest repayments from the loan amount, rate, term and frequency entered. The interest-only loan ending calculator estimates the payment handover when principal repayments begin over a shorter remaining term. The borrowing power calculator applies a user-selectable serviceability buffer and broad household-expense assumptions. It is an indicative scenario, not a lender assessment. On the upfront-cost side, the stamp duty calculator models published bracket schedules for all eight states and territories, including supported buyer selections and surcharges. The LMI calculator uses an illustrative premium grid for planning. It is not an insurer or lender quote.
The land tax by state tool uses separate jurisdiction settings because thresholds, rates, owner types and surcharge rules differ. Some specialised treatments still require a direct authority check. A calculator selection cannot determine legal ownership, residence status, exemptions or eligibility.
The site is editorially independent from lenders and mortgage brokers. The methodology is published, assumptions are exposed in the interface, and material rule changes are recorded with an effective date and source where available.
Use these calculators as estimates based on the assumptions entered. They are not quotes, approvals, tax rulings, valuations or recommendations. Check the relevant authority and speak with a licensed professional before relying on a result for a transaction.