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
Compare my finance options
Use the enquiry form for an initial broker review. No lender application is made just by enquiring.
Compare my finance 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.