Should You Make Extra Repayments?

Making extra home loan repayments can be one of the simplest ways to reduce interest and become mortgage-free sooner. Even a modest amount paid regularly may have a meaningful effect over a long loan term because it reduces the balance on which future interest is calculated.

But putting every spare dollar directly into your loan is not automatically the best choice. The right approach depends on your loan features, other debts, emergency savings, plans for the property and how important access to your money is.

For some borrowers, direct extra repayments provide discipline and certainty. For others, holding the same money in a well-structured offset account may deliver similar interest savings with greater flexibility. Fixed-rate limits and investment-property tax considerations can also change the answer.

So, should you make extra repayments? Often, yes—but only after checking where the money will have the greatest benefit and whether you may need it later.

What Counts as an Extra Repayment?

An extra repayment is any amount paid into your home loan above the minimum repayment required by your lender. It may take the form of:

• a higher regular weekly, fortnightly or monthly repayment;

• a one-off lump sum, such as a bonus, tax refund or inheritance;

• keeping repayments unchanged after your required repayment falls; or

• rounding each repayment up to a higher amount.

Extra repayments are different from simply making the required payment earlier. What matters is whether more money reaches the loan than the lender requires over the relevant period.

Moneysmart notes that extra repayments can help borrowers pay off a mortgage faster and that making them earlier in the loan term can be particularly effective.[1]

How Extra Repayments Save Interest

Most principal-and-interest home loan repayments contain two components:

1. Interest—the cost charged by the lender on the outstanding balance.

2. Principal—the amount that reduces what you owe.

During the early years of a long-term loan, a larger share of each scheduled repayment may go towards interest. An extra repayment generally reduces the principal sooner. With a smaller balance, less interest is calculated in future periods. More of each subsequent repayment can then reduce the principal.

This is why the benefit can compound over time. You are not earning interest on the extra payment. You are avoiding some of the future interest that would otherwise have been charged.

The actual saving will depend on:

• the amount and timing of the extra repayments;

• the outstanding loan balance;

• the interest rate and any future rate changes;

• the remaining loan term;

• how frequently interest is calculated; and

• whether fees or repayment restrictions apply.

A Worked Example

Consider an illustrative $500,000 principal-and-interest loan with a 30-year term and a constant interest rate of 6% per annum.

• The calculated monthly repayment is approximately $2,998.

• Over 30 years, the estimated total interest is approximately $579,191.

• If the borrower pays an additional $200 each month, the loan is repaid in approximately 25 years and 6 months.

• The estimated interest falls to approximately $476,046—a saving of about $103,145.

That is roughly four and a half years removed from the loan term.

This example is indicative only. It assumes monthly repayments, no fees, no withdrawals, a constant rate and that the higher repayment continues until the loan is repaid. Real loan outcomes will vary, and the final repayment would be smaller than the regular monthly amount.

The example nevertheless shows why consistency matters. An additional amount that appears small compared with the loan balance can make a substantial difference when maintained over many years.

The Main Benefits of Making Extra Repayments

1. You Can Reduce the Total Interest Paid

The primary benefit is straightforward: reduce the outstanding principal earlier and there is less balance on which interest can be charged.

The result can be significant over a long loan term, particularly when extra repayments begin early and remain consistent.

2. You May Repay the Loan Sooner

Extra repayments can shorten the time it takes to clear the debt. This may create more options later, such as reducing working hours, directing money towards retirement or investing, or entering a new stage of life without a home loan repayment.

3. You Can Build Equity Faster

Equity is broadly the difference between the property's value and the amount owing against it. Reducing the loan balance faster can build equity independently of any movement in property prices.

Greater equity may help if you later want to refinance, purchase another property or reduce your loan-to-value ratio. Accessing equity, however, normally requires lender approval and a fresh assessment; it is not guaranteed simply because the equity exists.

4. It Can Create a Useful Financial Habit

Automating a manageable extra repayment removes the need to make the same decision every month. Some borrowers also prefer placing surplus money into the loan because it is less visible—and potentially less tempting to spend—than money in an everyday account.

5. The Saving Is Not Exposed to Market Volatility

Reducing home loan interest is different from investing. There is no market price moving up or down. The benefit comes from lowering the interest charged under the loan.

That does not mean extra repayments will always outperform every investment or superannuation strategy. Those alternatives have different returns, risks, liquidity, tax treatment and time horizons. A financial adviser can help compare them where the decision forms part of a broader wealth strategy.

Before Paying Extra, Check These Five Things

1. Do You Have More Expensive Debt?

If you carry a credit card balance, personal loan or another debt with a materially higher interest rate, directing extra money there first may save more interest.

Moneysmart describes paying the minimum on each debt and directing extra money to the debt with the highest costs as the approach that saves more interest over time.[5]

The comparison should include fees as well as rates. It should also consider whether clearing a smaller balance first would improve cash flow or help you remain motivated.

2. Do You Have an Emergency Buffer?

Money paid directly into a home loan may not be as readily accessible as cash in a bank account. Even where redraw is available, access is governed by the lender's terms.

An emergency fund provides a buffer for urgent costs or a temporary loss of income. Moneysmart suggests that three months of expenses can be a useful savings target and notes that an eligible offset account may be used to hold an emergency fund while reducing home loan interest.[4]

The right buffer depends on factors such as income stability, household size, insurance, health, property maintenance and other financial commitments. Paying the loan down aggressively but then relying on a credit card when an unexpected expense arrives may undermine the strategy.

3. Does Your Loan Permit Extra Repayments?

Many variable-rate home loans allow additional repayments, but features and conditions differ. Fixed-rate loans commonly impose limits and may charge an adjustment or break cost if the permitted amount is exceeded or the loan is changed or repaid early.

For example, CommBank currently states that additional repayments on its fixed-rate home loans are limited to $10,000 in each fixed-term year, subject to its terms.[6] This is one lender's policy—not a market-wide rule—and demonstrates why borrowers should check their own loan contract rather than assume the same limit applies.

A lender may also calculate an early repayment adjustment when it incurs a loss after a borrower breaks a fixed-rate contract.[7] The amount can depend on factors including market rates, the remaining fixed period and the amount repaid.

Before transferring a large lump sum, ask your lender or broker:

• Is there a maximum additional repayment during the fixed period?

• Is the limit measured per calendar year, loan year or fixed-term year?

• Could the payment trigger a fee, break cost or early repayment adjustment?

• Will the money be available through redraw?

• What happens to extra repayments when the fixed period ends?

4. Will You Need the Money Again?

If the funds are intended for renovations, school fees, parental leave, a future deposit or another near-term goal, access may matter as much as the interest saving.

Redraw may provide access to eligible extra repayments, but it is a feature of the loan—not a separate savings account. Minimum withdrawal amounts, processing times, fees and eligibility rules may apply. A lender may also alter the available redraw balance in accordance with the loan terms.

If flexibility is important, an offset account may be worth comparing.

5. Is the Property—or Could It Become—an Investment?

Extra repayments and later redraws can create tax complexity when a property is rented out or may become an investment in the future.

The ATO explains that interest deductibility depends on how borrowed funds are used. If a rental-property loan is used partly for private purposes, interest expenses need to be apportioned, and only the rental-related portion may be deductible.[8]

In practical terms, redrawing money for a private expense can create a mixed-purpose loan. The fact that the loan is secured by an investment property does not, by itself, make interest on the private portion deductible.

An offset account is structurally different: money remains in a separate account and reduces the balance used to calculate interest. However, individual circumstances and account arrangements matter. Speak with a registered tax agent before making decisions based on potential tax outcomes.

Extra Repayments Versus an Offset Account

Both options may reduce home loan interest, but they handle your money differently.

Moneysmart explains that an offset account is linked to a mortgage and that its balance reduces the amount on which the lender calculates interest. It also distinguishes redraw as access to extra payments made directly to the loan, subject to the loan terms.[2]

An offset account is not automatically superior. A home loan with offset functionality may carry a higher rate or additional fees. It only delivers value while money remains in the account. Moneysmart recommends comparing the interest rate, fees and access rules when weighing offset and redraw features.[2]

A broker can compare the total cost of suitable loan options rather than assessing the offset feature in isolation.

What About Weekly or Fortnightly Repayments?

Changing repayment frequency can help in some circumstances, but the details matter.

If a borrower pays half the monthly repayment every fortnight, they make 26 half-payments over a year. That equals 13 monthly repayments rather than 12, effectively adding one monthly repayment each year.[1]

However, lenders do not all calculate weekly and fortnightly repayments in the same way. Some divide the required annual amount across the chosen frequency rather than simply halving the monthly figure. Interest calculation and repayment processing can also differ.

Ask the lender to confirm:

• the exact required payment at each frequency;

• the total paid over a full year;

• when each payment is credited to the loan; and

• whether any amount above the requirement is treated as an extra repayment.

The benefit comes from paying more principal sooner—not from the word “fortnightly” itself.

Regular Extra Repayments or a Lump Sum?

Both can work.

Regular Extra Repayments

A recurring amount can suit borrowers with predictable income. It creates consistency and begins reducing the balance immediately. A useful approach is to choose an amount that remains comfortable even when annual bills or routine expenses arise.

Lump-Sum Repayments

A lump sum may suit irregular income or one-off receipts. Bonuses, commissions and tax refunds can reduce the loan without permanently increasing the household's regular commitment.

From an interest perspective, earlier is generally better because the balance is reduced sooner. But liquidity should come first: there is little value in transferring a lump sum today if it must be borrowed back at a higher cost next month.

Some borrowers combine both approaches—an affordable automatic amount plus occasional lump sums when their cash buffer is already adequate.

When Extra Repayments May Make Sense

Paying extra may be a strong option when:

• you have stable surplus cash flow;

• you already hold an appropriate emergency buffer;

• you do not have higher-cost debt to prioritise;

• your loan allows extra repayments without a material charge;

• you want to reduce interest and the loan term;

• you value the discipline of placing money directly into the loan; and

• you have considered whether an offset would provide more useful flexibility.

It may also suit borrowers who receive a pay rise. Directing part of the increase to the loan before lifestyle spending expands can raise repayments without making the change feel as severe.

When Another Option May Be Better

Direct extra repayments may be less suitable when:

• your emergency savings are inadequate;

• you have higher-interest debt;

• a fixed-rate limit or break cost applies;

• you expect to need the funds soon;

• the property may become an investment and redraws could complicate tax records;

• a properly structured offset account offers the flexibility you need; or

• another strategy better fits your objectives, risk tolerance and timeframe.

There is also a behavioural question. An offset only helps while money stays in it. If easy access encourages frequent spending, a direct extra repayment may work better despite offering less flexibility. Conversely, a borrower with strong cash management may value keeping a substantial accessible buffer in offset.

Should You Lower Your Repayment After Paying Extra?

An extra repayment does not always cause the lender to reduce the required repayment immediately. Policies differ, and lenders may recalculate repayments after a rate change, a loan variation or another review event.

If your required repayment does fall, keeping your actual payment at the previous level can continue accelerating the loan—provided the higher amount remains affordable and no restriction applies.

Do not assume that a lower balance permanently protects you from repayment increases. Variable rates can change, and lenders calculate required repayments using factors that include the amount owing, interest rate and remaining term. Maintain room in the budget for changing costs.

A Simple Decision Framework

Before making an extra repayment, work through these questions in order:

1. Can I meet my regular bills and minimum repayments comfortably?

2. Do I have an emergency buffer that reflects my household's needs?

3. Do I have another debt with a higher overall cost?

4. Does my home loan allow the extra payment without a fee or restriction?

5. Could I need this money in the next few years?

6. Would an offset account give me a similar interest benefit with better access?

7. Could the property become an investment?

8. Does this decision interact with my tax, superannuation or investment strategy?

If the answers support paying extra, start with an amount you can sustain. A repayment plan that survives normal life is more useful than an aggressive target abandoned after two months.

Questions to Ask Your Mortgage Broker

A mortgage broker can help you understand how your specific loan treats additional payments and compare alternatives across suitable products. Useful questions include:

• Can I make unlimited extra repayments on my loan?

• Are the rules different for the fixed and variable portions?

• How does my available redraw change over time?

• Are there redraw fees, minimum amounts or access delays?

• Would my loan support a full or partial offset account?

• Does the offset option come with a higher rate or package fee?

• How much interest and time could a particular extra repayment save?

• Would refinancing to a lower rate have a larger impact?

• What costs would apply if I changed loans?

• Which loan structure best fits my need for flexibility?

Home loan features should be assessed together. A low advertised rate may not provide the repayment flexibility you want, while a feature-rich loan may cost more than the benefit it delivers. Moneysmart similarly recommends considering whether you will genuinely use loan features and whether their cost is worthwhile.[3]

How Homefront Mortgages Can Help

There is no universal “right” extra repayment. The best approach depends on your loan terms, cash flow, goals and plans for the property.

Homefront Mortgages can help you:

• review the additional-repayment and redraw rules on your current loan;

• compare direct repayments with offset-account options;

• model how different repayment amounts may change estimated interest and loan duration;

• assess whether your current rate and loan features remain competitive;

• compare suitable loan structures across a range of lenders; and

• understand the questions to take to your accountant or financial adviser where tax or investment strategy is involved.

The aim is not simply to make the largest possible repayment. It is to build a home loan strategy that reduces unnecessary interest while preserving the flexibility your household needs.

If you are considering regular extra repayments, using a lump sum or reviewing your offset and redraw options, contact Homefront Mortgages to discuss your loan structure and next steps.

Important Information

This article provides general information only and does not take into account your objectives, financial situation or needs. It is not financial, tax or legal advice. Loan features, fees, rates, redraw access and repayment restrictions vary between lenders and products and may change. Calculations are illustrative only and actual outcomes will differ. Before acting, review the relevant loan documents and consider seeking advice from an appropriately qualified mortgage broker, financial adviser, registered tax agent or legal professional.

References

1. Moneysmart, Pay off your mortgage faster, accessed 17 August 2026.

2. Moneysmart, Mortgage offset accounts, accessed 17 August 2026.

3. Moneysmart, Choosing a home loan, accessed 17 August 2026.

4. Moneysmart, Save for an emergency fund, accessed 17 August 2026.

5. Moneysmart, Get debt under control, accessed 17 August 2026.

6. Commonwealth Bank, Can I make additional repayments on my Fixed Rate Home Loan?, accessed 17 August 2026.

7. Commonwealth Bank, What is an Early Repayment Adjustment?, accessed 17 August 2026.

8. Australian Taxation Office, Interest expenses, accessed 17 August 2026.