What Matters Most When Comparing Home Loan Options
The loan with the lowest advertised rate isn't always the one that costs you least over time. A variable rate might sit half a percent lower than a fixed option today, but if your income fluctuates or you're planning to make extra repayments, the features attached to that loan matter more than the rate alone.
Consider someone buying their first home with a 10% deposit. They're weighing up a variable rate product with a linked offset account against a fixed interest rate home loan with a lower headline figure but no offset and limited extra repayment options. If they're likely to build up savings in the offset account over the next few years, the variable option could save them more in interest despite the slightly higher starting rate. The offset account reduces the balance on which interest is charged, and that benefit compounds.
How an Offset Account Changes Your Repayment Timeline
An offset account sits alongside your home loan and reduces the interest you pay each month based on the balance you keep in it. If you have a loan amount of $500,000 and $20,000 sitting in a linked offset, you're only charged interest on $480,000. That $20,000 doesn't earn interest itself, but it saves you from paying interest on that portion of the loan, which is usually a far higher rate than any savings account would offer.
This feature suits people who can maintain a buffer of savings without needing to lock it away. In our experience, buyers who use their offset account consistently can shave years off their loan term without formally increasing their repayments. The key is keeping money in the offset rather than spending it the moment it lands.
Fixed Rate vs Variable Rate: Matching the Structure to Your Situation
A fixed interest rate home loan locks your rate for a set period, usually between one and five years. Your repayments stay the same regardless of what happens in the broader market. A variable interest rate moves with the lender's changes, which means your repayments can go up or down.
Fixed rates suit people who need certainty in their budget or who are stretching their borrowing capacity and can't absorb an increase. Variable rates suit people who want flexibility to make extra repayments, redraw funds, or take advantage of rate cuts. Some lenders allow extra repayments on fixed loans, but there's often a cap, and if you break the loan early, you'll likely face break costs.
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A split loan divides your borrowing between fixed and variable portions. You might fix 60% of your loan to protect most of your repayments from rate rises, and keep 40% variable so you can make extra repayments or use an offset account on that portion. This approach doesn't eliminate risk, but it spreads it. We regularly see this structure used by buyers who want some stability but don't want to lose all flexibility.
Interest Only vs Principal and Interest: When Each One Makes Sense
Most owner occupied home loans are structured as principal and interest, meaning each repayment reduces the loan balance and covers the interest charged. An interest only loan means you're only paying the interest each month, and the loan balance stays the same unless you make extra repayments.
Interest only loans are more common with investment loans, where the borrower wants to maximise tax deductions and minimise cash outflow. For an owner occupied home loan, interest only can be useful in the short term if you're managing cash flow during a career change or parental leave, but it doesn't build equity. Once the interest only period ends, your repayments jump because you're catching up on the principal you didn't pay earlier.
If you're applying for a home loan to live in, principal and interest is usually the better choice unless you have a specific reason to delay paying down the balance.
How Loan Features Affect What You Can Borrow
Your borrowing capacity isn't just about income and expenses. Lenders also assess the loan structure you're applying for. An interest only loan reduces your serviceability compared to principal and interest because the lender knows your repayments will increase later. A fixed rate loan might be assessed at a higher buffer rate than a variable loan, depending on the lender's policy.
If you're close to your borrowing limit, switching from interest only to principal and interest or choosing a variable rate over a fixed rate might be enough to get your loan approved. This is one reason why it's worth running through different scenarios during home loan pre-approval rather than locking into one structure before you know what's possible.
Portable Loans and What Happens When You Move
A portable loan lets you transfer your existing home loan to a new property without breaking the contract. This can save you from paying break costs if you're on a fixed rate and need to sell before the fixed period ends.
Not all lenders offer portability, and even when they do, it's not automatic. You still need to apply and meet the lender's criteria for the new property. If you're planning to upgrade or downsize within a few years, check whether portability is included in your loan package and what the conditions are.
Rate Discounts and How They're Applied
Most lenders publish a standard variable rate, then offer discounts based on your loan size, deposit, or whether you're a new customer. A rate discount of 0.80% might be standard for loans over $250,000, but you might get an additional 0.10% if you also take out the lender's offset account or agree to salary credit your income.
These discounts aren't permanent in all cases. Some lenders reserve the right to reduce your discount over time, particularly if you don't maintain the conditions that qualified you for it. When you compare rates, check whether the discount is guaranteed for the life of the loan or subject to review.
Lenders Mortgage Insurance and How It Affects Your Loan
If your deposit is less than 20% of the property value, your loan to value ratio sits above 80%, and you'll usually need to pay Lenders Mortgage Insurance. LMI protects the lender if you default, and it's a one-off cost that can be added to your loan amount or paid upfront.
The cost varies based on your deposit size and the lender. For someone borrowing at 90% LVR, LMI could add several thousand dollars to the total loan. Some lenders offer LMI waivers for certain professions or if you're using a government guarantee scheme. If you're a first home buyer, it's worth checking what your LMI cost will be before you settle on a deposit amount, as even a small increase in your deposit can reduce the premium.
Calculating Home Loan Repayments and What Changes Them
Your repayment amount depends on the loan amount, the interest rate, and the loan term. A $400,000 loan over 30 years at a variable interest rate will have lower monthly repayments than the same loan over 25 years, but you'll pay more interest over the life of the loan.
If you're trying to keep repayments low, extending the loan term is one option, but it delays the point at which you build equity. If you want to own your home outright sooner, shortening the term or making extra repayments will reduce the total interest cost. Most variable home loan products let you make unlimited extra repayments, which gives you control over how quickly you pay down the balance.
You don't need to commit to higher repayments formally. Even occasional extra payments, such as directing a tax refund or bonus into the loan, can shorten the loan term by years.
Applying for a Home Loan: What Lenders Actually Look At
When you apply for a home loan, lenders assess your income, expenses, existing debts, credit history, and the property you're buying. They're checking whether you can service the loan under current conditions and whether you'd still manage if rates increased.
Lenders don't all assess the same way. One lender might add a buffer of 3% to the current rate when calculating serviceability, while another might use 2.5%. One lender might include your full rental income if you're buying an investment property, while another might only count 80% of it. This is why shopping around or working with a broker who has access to home loan options from multiple lenders can improve your chances of approval and help you secure a structure that suits your situation.
Why Some Loans Offer Lower Rates but Fewer Features
Some lenders strip back features to offer lower rates. You might see a variable rate that's 0.30% lower than competitors, but the loan doesn't include an offset account, redraw facility, or the ability to split your loan. These products suit people who plan to set and forget their repayments, but they're less useful if your situation might change.
Before choosing a low-rate loan, check what you're giving up. If you're likely to want an offset account or the ability to make extra repayments and access them later through redraw, a slightly higher rate with those features included could work out cheaper over time.
When to Review Your Home Loan After You've Settled
Once you've settled on your home, your loan doesn't need to stay the same forever. If your financial situation improves, you might be able to negotiate a better rate discount or switch to a loan with more features. If your fixed rate is coming to an end, you'll need to decide whether to fix again, switch to variable, or split the loan.
A loan health check every couple of years can highlight whether you're still on a competitive rate or whether refinancing could save you money. Lenders often reserve their sharpest rates for new customers, so staying with the same lender without reviewing your loan can mean you're paying more than you need to.
If you're ready to start comparing home loan products or you want to talk through which features would actually make a difference for your situation, call one of our team or book an appointment at a time that works for you.
Frequently Asked Questions
What's the difference between a fixed rate and a variable rate home loan?
A fixed rate locks your interest rate for a set period, keeping your repayments the same regardless of market changes. A variable rate moves with the lender's changes, which means your repayments can go up or down, but you usually get more flexibility to make extra repayments or use an offset account.
How does an offset account reduce the interest I pay?
An offset account reduces the loan balance on which you're charged interest. If you have $20,000 in your offset and a $500,000 loan, you only pay interest on $480,000. The savings compound over time and can shorten your loan term without increasing your repayments.
When should I choose an interest only loan for my home?
Interest only loans are more common for investment properties, but they can be useful for owner occupied homes if you're managing short-term cash flow during a career change or parental leave. They don't build equity, and repayments increase once the interest only period ends.
Do I need to pay Lenders Mortgage Insurance if my deposit is less than 20%?
Yes, if your deposit is less than 20%, your loan to value ratio sits above 80%, and you'll usually need to pay Lenders Mortgage Insurance. The cost depends on your deposit size and lender, and it can be added to your loan or paid upfront.
Can I make extra repayments on a fixed rate home loan?
Some lenders allow extra repayments on fixed loans, but there's often a cap on how much you can pay without penalty. If you break the loan early, you'll likely face break costs, so check the terms before committing to a fixed rate.