Try the Extra Repayments & Offset Savings
Run the numbers while you read and see how the concepts apply to your situation.
Overview
Paying more than the minimum and holding cash in an offset account both reduce the effective principal you pay interest on, which lowers interest charges and shortens your loan. Small, consistent extras compound into large savings over time because every dollar paid early stops interest from accruing on that dollar for the rest of the term. Offset accounts provide flexibility by keeping cash accessible while still reducing interest, whereas permanent extra repayments immediately cut the balance. This guide shows the trade‑offs, demonstrates the impact of timing, and provides a calculator to model weekly/fortnightly/monthly strategies.
How extra repayments work
- Small weekly/fortnightly/monthly extras reduce principal sooner.\
- Less principal → less interest charged → faster payoff.
Lump‑sum payments
One‑off payments (e.g., bonuses) immediately cut the balance and lifetime interest. Timing matters — earlier is usually better.
Offset accounts
An offset links a transaction account to your loan. Money in the offset reduces the balance used to calculate interest.
Model savings with the Extra Repayments & Offset Calculator.
Sources
- ASIC Moneysmart — Making extra repayments: https://moneysmart.gov.au
- RBA — Housing lending insights: https://www.rba.gov.au
Frequently asked questions
Is it better to keep cash in offset or pay down?
Offset preserves flexibility (access to funds) while reducing interest. Paying down permanently reduces balance. Consider redraw rules and your liquidity needs.
Do fortnightly repayments really save interest?
Making the equivalent of 13 monthly payments per year (via fortnightly) can reduce total interest and term, depending on lender calculations.
RealEstateCalc Editorial
Property & Finance ResearchThe RealEstateCalc editorial team researches and writes about Australian property, finance, and tax topics. All content is fact-checked against official sources including the ATO, state revenue offices, ASIC Moneysmart, and the RBA.
Related Calculators
Related Articles
Understanding Mortgage Repayments — A Complete Guide
Amortization explained: P&I vs IO, repayment frequency, rate/term effects, offset and extra repayments — with calculator.
Understanding Lenders Mortgage Insurance (LMI) — A Complete Guide
A practical, country‑agnostic guide to what LMI is, when it applies, how premiums are calculated, and how capitalising affects your loan.
Interest Only vs Principal & Interest Home Loans: Complete Comparison
A detailed comparison of interest only (IO) and principal and interest (P&I) home loans — how each works, who they suit, pros and cons, and total cost differences.
Ready to try the Extra Repayments & Offset Savings?
Use the calculator to model your scenario and make confident decisions.
What moved in Australian property this week — in your inbox Sunday.
RBA decisions, clearance rates, policy shifts and the calculators that dropped. Two-minute read, no filler.
Free. No spam. Unsubscribe anytime.