Understanding the basics of Fixed Rate Home Loans

A fixed rate home loan holds your interest rate constant for an agreed period, typically between one and five years.

The repayment amount stays the same throughout the fixed term, regardless of what happens to variable rates in the broader market. Once the fixed period ends, the loan usually reverts to the lender's standard variable rate unless you renegotiate or refinance. That certainty can be valuable when you need to budget tightly or when you expect rates to rise, but fixed products come with features and restrictions that differ substantially from variable loans.

How Fixed Rate Loans Differ From Variable Products

A variable rate loan allows you to make extra repayments, redraw those funds, and link an offset account without penalty. A fixed rate loan typically restricts or removes those features. Most lenders cap additional repayments at around $10,000 to $30,000 per year during the fixed period, and redraw facilities are either unavailable or severely limited. Offset accounts are rarely permitted on fixed loans, though some lenders offer a partial offset at a reduced percentage.

In our experience, buyers who prioritise flexibility over rate certainty tend to choose variable or split rate structures. Those who value predictable repayments and intend to make only the minimum payment each month often find fixed loans align more closely with their circumstances.

Break Costs and Early Exit

Breaking a fixed rate loan before the term expires usually triggers a fee calculated by the lender to recover the economic loss caused by your early exit. The calculation compares the fixed rate you locked in with the rate the lender can now earn by lending that money elsewhere. If rates have fallen since you fixed, the break cost can run into thousands of dollars. If rates have risen, the cost may be zero or negligible.

Consider a buyer in Glen Waverley who fixed at 5.8% for three years in early 2025. Eighteen months later, they accept a job interstate and decide to sell. By that time, the equivalent fixed rate has dropped to 4.9%. The lender calculates a break cost of approximately $8,400 on a loan balance of $650,000 because it can no longer earn the original rate on that capital for the remainder of the term. That cost is deducted from the sale proceeds at settlement. The same buyer would have paid no break cost on a variable loan.

Most lenders provide an online calculator or will estimate break costs on request before you commit to selling or refinancing. If you think your circumstances might change during the fixed period, a variable or split loan usually offers more practical flexibility.

Fixed Rate Terms and Reversion

Fixed terms commonly range from one to five years, with some lenders offering seven-year options. Shorter terms carry less interest rate risk for the lender and sometimes attract lower rates than longer terms, though that relationship inverts depending on the yield curve at the time.

Once the fixed term ends, your loan reverts to the lender's standard variable rate unless you take action. Standard variable rates are typically higher than discounted variable rates offered to new borrowers. If you want to maintain a lower rate after reversion, you need to either negotiate a new discount with your current lender or refinance to a new lender before the fixed period expires. Letting the loan revert without review can add hundreds of dollars per month to your repayment.

Serviceability Assessment on Fixed Loans

Lenders assess your capacity to service a fixed rate loan using the same buffer that applies to variable loans. Under APRA requirements, the lender must test whether you can afford repayments at a rate at least 3.0 percentage points above the loan product rate. That buffer applies even if you are fixing at a lower rate than the current variable offering.

If you are buying in Glen Waverley and applying for a fixed rate of 5.5%, the lender assesses your serviceability at 8.5%. The buffer ensures you can still afford the loan if rates rise after your fixed term ends. It does not change the repayment you actually make during the fixed period, but it may reduce the amount the lender is willing to approve.

Partial Offset and Split Loan Structures

Some lenders allow a partial offset account linked to a fixed loan, crediting a percentage of the balance against your loan rather than the full amount. A 40% offset on a $20,000 balance reduces the interest charged as though you had made an $8,000 repayment. Full offsets remain exclusive to variable loans in most cases.

A split loan divides your borrowing between fixed and variable portions, letting you lock in part of your repayment while retaining flexibility on the remainder. A buyer purchasing an established home near Kingsway or Coleman Parade might split $500,000 as $300,000 fixed and $200,000 variable. The fixed portion provides repayment certainty, while the variable portion allows unlimited extra repayments, redraw, and a full offset account. The structure works when you want some protection against rate rises but also plan to pay down the loan faster or accumulate savings in an offset.

Split loans require slightly more administration because you manage two loan accounts, and some lenders charge separate fees for each portion. The added cost is usually modest compared to the functional gain.

Portability and Fixed Loans

Portability allows you to transfer your loan from one property to another without breaking the contract. Variable loans are almost always portable. Fixed loans are sometimes portable, but the lender will typically reassess your serviceability and may require the new property to meet specific criteria.

If you sell your current property and purchase another during the fixed term, portability can help you avoid break costs. However, if the new loan amount differs significantly from the existing balance, the lender may treat the difference as a new loan and apply break costs to the portion you are discharging. Portability is not automatic and must be arranged with the lender before settlement on either property.

Rate Lock and Application Timing

Most lenders allow you to lock in a fixed rate for 90 days from the date of formal approval. The lock protects you if rates rise between approval and settlement, but it also prevents you from accessing a lower rate if the lender drops their pricing during that window. Some lenders charge a fee to lock the rate, while others include it as a standard feature.

If you are building or buying off the plan in Glen Waverley and expect settlement in four to six months, you need to consider whether locking a rate now provides more value than waiting until closer to settlement. Rate lock fees and the risk of rates moving either direction are both part of that decision.

Comparing Fixed Rates Across Lenders

Fixed rates vary widely between lenders at any given time, depending on each institution's funding costs, risk appetite, and strategic priorities. A major bank might price a three-year fixed rate at 5.6%, while a non-bank lender offers 5.2% on a comparable product. The lower rate may come with higher upfront fees, stricter serviceability criteria, or fewer features such as portability or partial offset.

Comparing fixed rates requires looking beyond the headline figure to the features, fees, and exit terms that apply during and after the fixed period. A broker can access current pricing across multiple lenders and structure the loan to match your circumstances, particularly if you are weighing a fixed loan against a variable or split option for an owner occupied home loan or investment loan.

Call one of our team or book an appointment at a time that works for you. We work with clients across Glen Waverley and the surrounding area to structure fixed, variable, and split loans that align with your repayment capacity and your plans for the property over the next several years.

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