Interest Only Home Loan Explained
Navigating the realm of home loans can sometimes feel overwhelming with the variety of options available. Among the different types of home loans, an “interest only home loan” stands out for its unique repayment structure. In this guide, we will delve into what an interest-only home loan is, how it operates, and the potential benefits and drawbacks associated with this loan type in the Australian market.
What is an Interest Only Home Loan?

How Interest-Only Home Loans Work
To truly grasp the mechanics of interest-only home loans, let’s break it down:
- Repayment Structure: During the interest-only period, you’ll make interest-only repayments. This means you’ll only be paying off the interest charged on your loan amount, not reducing your loan balance. As a result, your monthly repayments will be lower than those of a comparable principal and interest loan during this period.
- Loan Term: The interest-only period typically lasts for a set term, ranging from 1-10 years of your loan. After this period, the loan either needs to be refinanced or it automatically switches to a standard principal and interest home loan, where you’ll begin paying down the loan principal in addition to the interest.
- Interest Rate: Interest only home loan rates can be available on both variable and fixed rate loans. The interest rate can fluctuate based on market conditions if you’re on a variable rate, whereas a fixed rate home loan locks in your interest rate for a specified duration.
- Overall Cost: While the interest-only repayments are lower during the initial period, borrowers may end up paying more interest overall throughout the life of the loan. This is because the principal amount remains unchanged during the interest-only term, leading to more interest being charged over the loan period.
- Post Interest-Only Period: Once the interest-only period ends, the loan could revert to principal and interest repayments, which are usually higher. This is because you’ll be paying off both the interest and the loan balance over the remaining loan term, which could be shorter than standard home loans.
- Equity Growth: During the interest-only period, unless the value of your home rises, you won’t build any equity in the home through repayments, as you’re not reducing the loan principal.
Understanding the intricate workings of an interest-only home loan helps in making an informed decision. It’s also vital to use tools like comparison rate calculators to compare interest-only home loans and gauge the potential costs and savings against standard principal and interest loans.
Comparing Home Loan Rates:
Interest Only vs Principal
When navigating the world of home loans, one of the vital distinctions to understand is between interest-only loans and principal and interest (P&I) loans. While both have their places in the mortgage landscape, they serve different needs and come with distinct advantages and implications. Let’s break down the differences:
Interest Only Home Loans
Definition: In an interest-only home loan, the borrower is required to pay only the interest charged on the loan amount for a specific period (typically between 1-5 years, but can be longer). The principal remains unchanged during this period.
Purpose: Such loans are often chosen by property investors because they can claim the interest as a tax deduction. It’s also suitable for those looking for short-term lower repayments.
Repayment Amounts: Payments are generally lower during the interest-only period as you’re only covering the interest.
Loan Term Impact: After the interest-only term ends, the loan will revert to a principal and interest loan unless you refinance or negotiate another interest-only period. This change means higher monthly repayments as you start paying down the principal.
Cost Over Life of Loan: Typically, you’ll pay more in interest over the loan’s life compared to P&I loans, especially if you don’t make extra repayments towards the principal.
Principal and Interest (P&I) Home Loans
Definition: With a P&I loan, your repayments cover both the loan principal and the interest charged. Over time, the principal portion increases while the interest portion decreases.
Purpose: These are standard loans suitable for most homebuyers looking to build equity in their property gradually.
Repayment Amounts: Initial repayments are generally higher than interest-only as they cover both principal and interest.
Loan Term Impact: You’re consistently reducing your principal, leading to a gradual decrease in the total interest paid over the life of the loan.
Cost Over Life of Loan: Overall, P&I loans tend to be less expensive in total interest paid compared to interest-only loans, especially when maintained over the entire loan term.
Benefits of Choosing an Interest-Only Loan
Selecting an interest-only loan can offer various advantages tailored mainly to specific financial circumstances and goals. Here’s a rundown:
Lower Monthly Repayments: During the interest-only period, repayments are exclusively on the interest, making them lower than combined principal and interest repayments. This can be advantageous for those seeking temporary cash flow relief.
Flexibility: For property investors, it offers the flexibility to redirect the funds that would typically go toward the principal into other investments or property opportunities.
Tax Benefits for Investors: Investors might be able to claim the interest as a tax deduction. Always consult with a tax professional about specific circumstances.
Short-term Solution: For those undergoing temporary financial strain or anticipating a short ownership of a property before selling, interest-only loans can be a fitting option.
Potential for Increased Property Value: If property values rise, homeowners could see an increase in equity, even without paying down the principal.
Interest Only Repayments vs Principal and Interest Repayments
While interest-only loans offer some upfront advantages, it’s vital to understand the long-term implications:
Higher Overall Interest: Since the principal isn’t being reduced during the interest-only period, borrowers might end up paying more interest over the life of the loan compared to standard principal and interest loans.
Post Interest-Only Period: Once the interest-only term concludes, repayments increase significantly as they switch to principal and interest, which could strain your finances if unprepared.
Slower Equity Build-up: Since no principal is being paid during the interest-only period, unless property values increase, no equity is built through repayments.
Potential for Negative Equity: If property values decrease, borrowers could find themselves in a situation where they owe more than their property is worth.
Fixed Rate vs Variable Interest in Interest-Only Home Loans
Interest-only loans can come with either fixed or variable interest rates, each having its merits and considerations:
Fixed Rate:
Certainty: The interest rate remains unchanged during the fixed period, offering predictability in repayments.
Protection Against Rate Rises: If market rates increase, your interest rate remains stable during the fixed term.
Potentially Higher Rates: Fixed rates might be higher than variable rates at the outset, so it’s crucial to compare interest only home loan rates.
Limitations on Extra Repayments: Some fixed-rate loans restrict or penalise additional repayments.
Variable Rate:
Flexibility: Variable rate loans often allow for unlimited extra repayments, offering an opportunity to pay down the principal if desired.
Rate Fluctuations: While there’s potential for lower rates, there’s also a risk that rates could increase, affecting your repayment amount.
Potential for Loan Features: Some variable rate home loans come with additional features like redraw facilities or offset accounts.
Risks Associated with Interest Only Home Loans


Converting from Interest Only to Principal and Interest Loan
Compare Interest Only Home Loans

Locations We Serve
Sydney
Brisbane
Gold Coast
Melbourne
Adelaide
Canberra
Darwin
Hobart
Launceston
conclusion
Is an Interest-Only Home Loan Right for You?
Choosing between an interest-only home loan and a principal and interest loan largely depends on your financial goals and situation. An interest-only mortgage offers short-term cash flow benefits with its lower repayments, but there’s a trade-off with potentially higher costs in the long run. It might be the right fit for certain investors or those with a specific financial strategy in mind. But it’s essential to be mindful of the risks, especially with potential interest rate movements. If building equity in your home and paying off the loan balance in the long term is a priority, then a traditional principal and interest home loan might be more suitable.
Always consult with financial professionals like Zanda Wealth Mortgage Brokers to ensure you make an informed choice tailored to your circumstances.