Simple hacks to lock in a fixed rate as a first buyer

Fixed rate loan terms for first home buyers usually range from one to five years. A fixed rate locks in your repayment amount for that period, which means you know exactly what you'll pay each month regardless of what happens to variable rates.

For public sector employees with stable income, that certainty can align well with budgeting, particularly when you're adjusting to new outgoings like council rates, strata fees, and maintenance costs that weren't part of your rental commitments.

The choice of term matters because it changes how you'll manage the loan once the fixed period ends. A shorter term gives you flexibility sooner. A longer term delays that flexibility but extends the certainty. Neither is objectively better. What works depends on how you plan to use the loan over the next few years.

How fixed rate terms affect your repayments and offset access

When you fix your rate, most lenders will restrict or remove access to an offset account during the fixed period. That means any savings you hold won't reduce the interest you're charged on the loan.

Consider a buyer who takes a three-year fixed term at 5.8% on a loan amount that sits just under the 5% deposit threshold. They've used genuine savings and the Australian Government 5% Deposit Scheme to avoid lenders mortgage insurance. During the fixed period, they continue to save through regular salary deductions into a separate account. Those funds sit idle in terms of interest offset. Once the fixed term ends and they revert to a variable rate, they can link that account and start reducing the interest charged. In that scenario, the three-year term gave budget certainty during the first years of ownership, and the transition back to variable opened up offset benefits at a point where the savings buffer had grown.

If you expect to build savings quickly or receive lump sums during the fixed period, a shorter term or a partial fix on only part of the loan may suit your situation more closely.

Split loans and why they're worth considering

A split loan lets you fix a portion of your borrowing and leave the rest on a variable rate. You're not required to fix the entire amount.

In our experience, buyers who split their loan often fix around 50% to 70% of the balance. The fixed portion provides repayment certainty. The variable portion maintains access to an offset account and gives the flexibility to make extra repayments without penalty.

For WA Government employees, this structure can work well if you're expecting annual increments, higher duties allowances, or periodic bonuses that you'd like to direct toward the loan. The variable portion absorbs those payments. The fixed portion holds your baseline repayment steady.

Some lenders will allow multiple splits. You might fix half the loan for two years and the other half for four years, with staggered expiry dates. That approach smooths out the impact of rate changes when each fixed term ends, rather than the entire loan reverting to variable on the same day.

What happens when your fixed term ends

At the end of the fixed term, your loan will revert to the lender's standard variable rate unless you take action. That rate is typically higher than any discounted variable rate available to new borrowers.

Most lenders will contact you around 90 days before the fixed term expires. You'll have the option to refix, switch to variable, or refinance to another lender. If you do nothing, the loan moves to the reversion rate automatically.

Refinancing at the end of a fixed term is common. Lenders often reserve their most competitive rates for new customers, and refinancing your home loan can give you access to those rates. The process involves a new application and valuation, but if your property has increased in value and your loan-to-value ratio has improved, you may also be able to negotiate a lower rate or remove any remaining lenders mortgage insurance.

Fixed rate terms and early exit costs

If you need to break a fixed rate loan before the term ends, the lender will typically charge a break cost. This cost compensates the lender for the difference between the rate you're paying and the rate they can now lend that money at.

Break costs are not flat fees. They vary depending on how much time is left on the fixed term, how much rates have moved since you locked in, and the size of the loan. If rates have fallen since you fixed, the break cost can be substantial. If rates have risen, the break cost may be zero or minimal.

You might trigger a break cost if you sell the property, refinance to another lender, or make a lump sum repayment that exceeds the allowable extra repayment limit during the fixed period. Some lenders allow up to $10,000 in additional repayments per year on a fixed loan without penalty. Others allow none.

If you're considering a fixed term longer than three years, factor in the possibility that your circumstances might change. A longer fixed term increases the chance you'll need to exit early, and the break cost at that point may outweigh the benefit of the original rate.

Choosing a term length that suits your situation

The right fixed term depends on your income stability, savings habits, and how soon you expect your financial position to shift.

A one or two-year fixed term works well if you want short-term certainty but expect to refinance, receive an inheritance, or make large extra repayments in the near future. You'll revert to variable sooner, but you'll also regain full loan flexibility sooner.

A three to five-year term suits buyers who want extended repayment certainty and don't expect to make significant lump sum payments. Public sector employees with defined salary progression often find that longer fixed terms align with their income timeline, particularly if they're planning parental leave or a period of reduced hours within the next few years.

Avoid choosing a term based solely on the advertised rate. A five-year fixed rate might be lower than a two-year rate at the time you apply, but that doesn't make it the right choice if you'll need flexibility before the five years are up.

If you're unsure, a split structure gives you the option to test both. You're not locked into a single decision.

Call one of our team or book an appointment at a time that works for you. We'll walk through the fixed and variable options available to WA Government employees and help you structure a loan that fits your situation and timeline.

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