Fixed Rate Home Loans: What First Home Buyers Need to Know

Fixed Rate Loans Lock Your Repayments for a Set Period

A fixed interest rate holds your home loan rate steady for an agreed term, typically between one and five years. Your repayments stay the same regardless of what happens to the cash rate during that period. For first home buyers who've just stretched their budget to secure a property, knowing exactly what your mortgage will cost each month removes a significant variable from your financial planning.

In our experience, self-employed buyers often prefer fixed rates during the first few years of homeownership. When your income fluctuates with business performance or contract work, having certainty around your largest monthly expense creates breathing room to manage other obligations. A PAYG professional who's recently changed roles or taken on new responsibilities might value the same stability while they settle into their new position and property.

Consider a self-employed graphic designer who secures pre-approval on a $550,000 loan with a 10% deposit. They fix $400,000 at 6.19% for three years and leave $150,000 on a variable rate. The fixed portion gives them predictable repayments of around $2,430 per month while they establish their mortgage payment rhythm. The variable portion allows them to make extra repayments when a large client project comes through, without restriction.

The Features You Sacrifice When You Fix Your Rate

Most fixed rate products limit your ability to make additional repayments beyond a set threshold, commonly $10,000 to $30,000 per year. If you exceed this cap, you'll typically pay a penalty or the extra funds won't reduce your loan balance during the fixed period. This matters particularly for business owners who might receive irregular income throughout the year or professionals expecting bonuses or commissions.

You also forfeit access to an offset account in most cases. An offset account sits alongside your home loan and reduces the interest you're charged based on your account balance. For a buyer with variable cash flow, parking business income or savings in an offset can reduce interest substantially. Fixed rates usually don't include this feature, though some lenders offer partial offsets with reduced effectiveness.

Redraw facilities on fixed loans either don't exist or come with conditions. If you've paid ahead and need to access those funds later, you may face restrictions or fees. For a self-employed buyer managing irregular income, this lack of flexibility can create problems if you've paid extra during a strong quarter but need those funds during a slower period.

Break Costs Apply If You Exit Your Fixed Term Early

If you refinance, sell, or pay off your loan before your fixed period ends, the lender will typically charge a break cost. This fee compensates the lender for the difference between your fixed rate and the current wholesale rate they can charge on that money. When rates have fallen since you fixed, break costs can run into thousands or tens of thousands of dollars.

The calculation involves your remaining loan balance, how much time is left on your fixed term, and the gap between your rate and current rates. A buyer who fixed $500,000 at 5.5% for five years but wants to refinance after two years when rates have dropped to 4.8% might face a break cost of $15,000 or more. The lender has planned to receive 5.5% for five years, and when you break that agreement early, they quantify their loss.

This becomes relevant when life changes unexpectedly. A promotion that requires relocation, a relationship breakdown, or a business opportunity requiring you to access equity all trigger the same consequence if you're locked into a fixed rate. Before committing to a longer fixed term, consider how stable your circumstances are likely to remain.

Split Loans Combine Fixed Certainty with Variable Flexibility

Many first home buyers split their loan between fixed and variable portions rather than choosing one or the other entirely. This structure gives you rate protection on part of your borrowing while maintaining access to features like offset accounts and unlimited additional repayments on the variable portion.

The split percentage depends on your priorities. A buyer who values predictability above all might fix 70% or 80% and leave the remainder variable. Someone who expects irregular income and wants the flexibility to pay ahead aggressively might fix only 40% or 50%. There's no standard formula, the right split reflects your income pattern and risk tolerance.

As an example, a contractor earning $140,000 annually through a combination of retainer work and project fees might fix 60% of a $480,000 loan to cover their minimum repayment obligations comfortably. The remaining 40% sits on a variable rate with a full offset account. During months when project income arrives, they park surplus funds in the offset to reduce interest. The fixed portion ensures their base repayment amount never climbs beyond what their retainer income can reliably cover.

Low Deposit Options and Lenders Mortgage Insurance Still Apply

Whether you choose fixed or variable rates, the same low deposit options remain available. If you're buying with less than 20% deposit, you'll pay Lenders Mortgage Insurance regardless of your rate structure. The First Home Loan Deposit Scheme allows eligible buyers to secure a loan with as little as a 5% deposit without paying LMI, and you can apply this to fixed rate products.

Some lenders offer better interest rate discounts on variable products compared to fixed, particularly for borrowers with smaller deposits. If you're applying with a 10% deposit or using a gift deposit from family, compare the actual rates offered on both fixed and variable products from multiple lenders. The difference might influence whether fixing your rate provides genuine value or simply limits your options without meaningful cost savings.

Your first home loan application should include clarity about how your deposit structure affects your rate options. A buyer accessing the first home super saver scheme or combining savings with family contributions needs to understand which loan features will actually be available once deposit size and LMI are factored in.

When to Commit to a Fixed Rate

Fix your rate when you value payment certainty more than flexibility, when you have limited ability to make extra repayments anyway, or when you believe rates are likely to rise during your fixed term. For a first home buyer stretching to their maximum borrowing capacity, knowing your repayment won't increase for three years allows you to plan other financial commitments with confidence.

Don't fix your rate if you expect significant life changes within the fixed period, if you regularly receive lump sum income you want to apply to your loan, or if you need the interest savings from an offset account to make your budget work. A PAYG professional expecting performance bonuses or a business owner with seasonal revenue peaks will often benefit more from variable features than fixed certainty.

The decision isn't about predicting rate movements accurately, it's about matching loan features to your income pattern and risk tolerance. Talk through your actual cash flow with your broker rather than trying to time the market.

Call one of our team or book an appointment at a time that works for you. We'll review your income structure, deposit position, and financial priorities to identify which rate structure and loan features actually suit your circumstances. Olsen Finance Group works with first home buyers across employment types, and we'll explain exactly what you're gaining and giving up with each option before you commit.

Frequently Asked Questions