How Much Extra Should You Repay on Your Mortgage to Pay It Off Faster?
One of the most common questions borrowers ask is how much extra they should be repaying on their mortgage. The short answer is: it depends. The longer answer is far more useful — because the “right” amount isn’t about pushing yourself to the limit, but about finding a sustainable level that meaningfully reduces interest while still fitting your lifestyle.
Why Extra Repayments Make Such a Big Difference
Mortgage interest is calculated daily on the remaining loan balance. This means any extra repayment immediately reduces the amount of interest charged going forward. Early in your loan term, when the balance is highest, extra repayments have the greatest impact. Even modest additional amounts can shave years off your loan and save tens of thousands in interest.
The Mistake Most Borrowers Make
Many borrowers either repay nothing extra or go too hard too fast. Paying nothing extra keeps you locked into the bank’s ideal scenario — a long loan with maximum interest. On the other hand, stretching yourself too thin can create cash flow stress and increase the risk of needing to unwind progress later. The goal is consistency, not intensity.
A Simple Way to Calculate a Comfortable Extra Amount
A practical starting point is reviewing your surplus cash flow. This is the money left after covering essential expenses, lifestyle costs, and a buffer for unexpected events. Even 5–10% above your minimum repayment can make a noticeable difference over time. What matters most is choosing an amount you can maintain through changing circumstances.
What Happens If You Add Just a Little More?
Adding an extra $100 per fortnight may not sound impressive, but over a 30-year loan it can reduce the loan term by several years. Because interest compounds over time, these small increases punch well above their weight. The earlier you start, the more powerful the result.
Using Offset Accounts Instead of Direct Repayments
For many borrowers, especially those who value flexibility, placing extra funds into an offset account can be more effective than making direct repayments. Money in an offset reduces interest just like an extra repayment, but remains accessible if needed. This approach suits borrowers with variable incomes or future plans that may require cash access.
Should You Increase Repayments When Rates Change?
When interest rates drop, it’s tempting to enjoy the lower repayment. However, maintaining your previous repayment amount can significantly accelerate your loan payoff. When rates rise, reassessing your extra repayment level helps ensure you stay comfortable without undoing progress.
Lump Sums vs Regular Extra Repayments
Lump sums from bonuses, tax returns, or windfalls can deliver a strong one-off reduction in interest. Regular extra repayments, however, create ongoing momentum. The most effective strategy often combines both — consistent extra payments supported by occasional lump sums when available.
How Much Is Too Much?
Extra repayments become counterproductive when they remove all flexibility or prevent you from building emergency savings. A good rule of thumb is to maintain at least three to six months of living expenses in accessible funds, whether in an offset account or savings account, before aggressively increasing repayments.
Tailoring the Strategy to Your Loan Type
Fixed-rate loans, variable loans, and split loans all behave differently when it comes to extra repayments. Some fixed loans limit additional payments, while variable loans are typically more flexible. Understanding these details ensures you’re not accidentally paying fees or missing better options.
Why Personalised Advice Makes a Difference
Online calculators provide estimates, but they don’t account for your full financial picture. A tailored strategy considers your income structure, loan features, future plans, and risk tolerance. Often, small adjustments in structure can allow you to repay more efficiently without increasing stress.
Paying extra on your mortgage doesn’t require perfection — just intention. Choosing a realistic amount and sticking to it consistently can dramatically shorten your loan term and put you on a faster path to financial freedom.
Want to know exactly how much extra you should be repaying on your loan? Book a free, no-obligation strategy call with Chase and get a personalised plan to help you pay off your loan sooner — without sacrificing flexibility or lifestyle.
