Proven tips to lock in your fixed rate home loan

A fixed rate home loan locks your interest rate for a set period, typically one to five years.

That means your repayments stay the same regardless of what happens to the Reserve Bank cash rate or what lenders do with their variable products. You know exactly what you'll pay each fortnight or month, which makes budgeting more predictable. For buyers in Dubbo and Central West NSW where household income can vary with seasonal work or agricultural cycles, that certainty often matters more than chasing the lowest possible rate.

How Long Should You Fix Your Rate

Most lenders offer fixed terms from one to five years, with three years being the most common choice. The term you pick depends on how long you want that repayment certainty and what you think rates might do during that time. A shorter fixed term gives you flexibility to refinance sooner if rates drop or your circumstances change. A longer term locks in protection if you think rates will climb.

Consider a buyer purchasing a home near the Dubbo Regional Theatre and Convention Centre who expects a job relocation within two years. Fixing for three years would mean paying break costs if they sell or refinance early. A one or two year fixed term would suit that scenario. On the other hand, someone settled long term in South Dubbo with young children might value the full five year certainty to match their budget planning through the school years.

What Happens When Your Fixed Period Ends

Your loan automatically switches to the lender's standard variable rate unless you take action beforehand. That revert rate is almost always higher than the discounted variable rates offered to new customers, sometimes by half a percent or more. You'll want to review your options and refinance at least three months before your fixed term expires to avoid paying more than necessary.

We regularly see borrowers caught off guard when their fixed period ends and their repayments jump by $200 or $300 a month. Setting a reminder in your calendar for 90 days before expiry gives you time to compare what your current lender will offer versus what's available elsewhere. Our fixed rate expiry calculator shows exactly when your term ends and what that timeline looks like.

Break Costs and Why They Matter

If you pay off your fixed rate loan early, switch to a variable rate, or refinance before the fixed term ends, the lender will usually charge break costs. These cover the difference between the fixed rate you're paying and the wholesale funding rate the lender can now earn by re-lending that money. Break costs can range from zero to tens of thousands of dollars depending on how much rates have moved since you fixed.

In a scenario where rates have dropped since you locked in, break costs will be high because the lender loses money when you exit early. If rates have risen, break costs are often zero or minimal. The calculation is complex and based on wholesale swap rates, not the advertised fixed rates you see online. Always ask your lender or broker to calculate the exact figure before making any decision to break a fixed loan.

Limited Extra Repayments on Most Fixed Products

Most fixed rate home loans cap how much extra you can pay each year without triggering break costs, typically between $10,000 and $30,000 depending on the lender. Some products allow no extra repayments at all. That limit applies over the calendar year, not the life of the fixed term. If you receive an inheritance, sell an investment property, or get a large bonus and want to pay down your mortgage quickly, a fully fixed loan will restrict that.

A split loan structure solves this. You fix part of your loan for rate certainty and leave the rest variable so you can make unlimited extra repayments on that portion. For example, someone in Dubbo working in healthcare with a stable income might fix 60% of their loan and keep 40% variable. They get repayment predictability on the majority of the debt while retaining flexibility to pay down the variable portion whenever they have surplus cash.

Offset Accounts Are Rarely Available with Fixed Rates

Most fixed rate products do not allow a linked offset account. A mortgage offset lets you park savings in a transaction account where the balance offsets your loan balance for interest calculation purposes. If you have a $400,000 loan and $50,000 in offset, you only pay interest on $350,000. Fixed rate loans typically replace this feature with a redraw facility, which lets you access extra repayments you've made but doesn't provide the same ongoing interest saving.

If you run a business in the Central West or keep large cash reserves for seasonal expenses like school fees or equipment purchases, losing offset functionality can cost you thousands in additional interest. In our experience, buyers who prioritise offset access either choose a variable rate or split their loan so the variable portion has offset attached. That structure keeps the tax and cash flow benefits of offset while still locking in some rate certainty.

Portability and Fixed Rate Restrictions

Some lenders let you port your fixed rate loan to a new property if you sell and buy within a specific timeframe, usually 90 days. This avoids break costs and keeps your locked-in rate. Not all lenders offer portability, and even when they do, the new property must meet their lending criteria. If you're buying a more expensive home and need to increase your loan amount, only the original fixed amount ports across. The additional borrowing will be at current rates.

For buyers in regional areas like Dubbo where property values and stock availability can fluctuate, portability adds useful flexibility. If you think you might upgrade or relocate within your fixed term, confirm whether your lender offers this feature before you lock in. It's not a standard inclusion and needs to be written into your loan terms from the start.

Choosing Between Fixed, Variable, or Split

Your decision comes down to what you value more: repayment certainty or flexibility. Fixed rates suit borrowers who want predictable repayments and are willing to trade features like offset and unlimited extra repayments for that security. Variable rates suit those who want full access to loan features and the ability to benefit if rates fall. A split loan gives you both, though it adds slight complexity because you manage two loan accounts.

We work with borrowers across Dubbo and the Central West who choose all three structures depending on their circumstances. There's no universal right answer, but there is a right answer for your income pattern, savings habits, and how long you plan to hold the property. That's a conversation worth having before you lock anything in, and it's one we have with our clients at no cost because we're paid by the lender, not by you.

Call one of our team or book an appointment at a time that works for you. We'll walk through your situation, run the numbers, and help you work out which loan structure fits what you're actually trying to do.

Frequently Asked Questions