Calculator methodology
Mortgage Top-Up vs Separate Loan Calculator: Methodology
The calculator amortises the same purchase amount at two rates and terms, then also recalculates the mortgage option over the standalone-loan term.
Calculation approach
- This exposes the effect of term separately from rate.
- Entered fees are added to estimated financing cost.
- It does not model tax deductibility or property-security risk.
What the calculator deliberately does not decide
The calculator does not select a lender, predict approval, expose lender policy or provide personal financial or tax advice. It is a transparent comparison tool so you can test structure before seeking a quote.
Run the numbers
Review my home loan options
Use the enquiry form for an initial broker review. No lender application is made just by enquiring.
Review my home loan optionsSources and verification
- Moneysmart — Switching home loans
- Moneysmart — Mortgage offset accounts
- APRA — Macroprudential policy settings
General information only. It is not personal financial, tax or legal advice. Finance approval, pricing and structure are subject to lender assessment and your circumstances.