The components of your home loan: Principal vs Interest
Understand the two parts of a home loan repayment, how interest is calculated and why your outstanding principal matters.
Tutorial coming soonUnderstanding how daily extra repayments can affect your home loan is just the beginning. Interest IQ is being developed to make the mechanics of mortgage interest easier to explore.
Seven straightforward topics to help you understand your home loan, explore repayment possibilities and make better sense of the numbers. Tutorials and additional tools are being developed.
Understand the two parts of a home loan repayment, how interest is calculated and why your outstanding principal matters.
Tutorial coming soonExplore the difference between accelerated repayments and genuine fortnightly or weekly repayment schedules, and why the distinction matters.
Tutorial coming soonLearn how minimum repayments can stretch a home loan over decades, and explore the maths behind reducing the loan term.
Tutorial coming soonUnlock a more advanced calculator to explore offset, redraw, periodic extra payments, lump-sum repayments and other scenarios.
Open advanced mortgage calculator →Explore everyday spending and uncover amounts you might choose to put towards your mortgage. Unlock access to our budgeting tool.
Budgeting tool coming soonA concise bullet-point summary of the most important things to remember, available as a printable PDF guide.
Printable PDF coming soonComplete a short questionnaire about the content, layout and functionality, and suggest how we can make the service better for you and others.
Questionnaire coming soonWe’re building the tutorials and interactive tools above. For now, you can return to the calculator — or do absolutely nothing.