Why Sole Traders Refinance from Variable to Fixed
When your income fluctuates month to month, locking in predictable mortgage repayments gives you one less variable to manage. Refinancing from a variable to a fixed interest rate removes the risk of rate rises eating into your cashflow during lean months, which matters when you're drawing income directly from your business.
For sole traders operating in Sydney, where property values and living costs sit higher than most Australian cities, budgeting certainty becomes even more valuable. A fixed rate protects you from upward rate movements for a set period, typically between one and five years. During that time, your repayments stay constant regardless of what the Reserve Bank does with the cash rate.
The decision to switch usually comes down to three factors: your current variable rate compared to available fixed rates, how long you want that certainty, and whether your business income is stable enough to commit to a locked-in repayment. If your current variable rate sits noticeably higher than what lenders are offering on fixed terms, and you expect your income to remain consistent or grow, the switch often makes sense.
How the Refinance Process Works
Refinancing to a fixed rate follows the same approval process as any other refinancing application. Your lender assesses your income, existing debts, living expenses, and the property value to determine whether you can service the new loan.
For sole traders, income verification requires more documentation than it does for salaried employees. Lenders typically ask for two years of tax returns and two years of business financials, sometimes supplemented by a profit and loss statement or recent Business Activity Statements. If your income has grown over the past two years, that works in your favour. If it has dropped or become inconsistent, lenders apply heavier discounts when calculating your borrowing capacity.
Consider a sole trader who operates a consulting business from home in the Inner West. Their income fluctuates between $8,000 and $14,000 per month depending on client work. They refinance from a variable rate to a three-year fixed rate, which locks their repayments at a consistent amount each month. Even during quieter months, they know exactly what they need to cover, which allows them to plan expenses and retain reserves without second-guessing whether next month's rate will climb.
Once your application is approved, the new lender handles most of the transition. They arrange the property valuation, prepare settlement documents, and coordinate the payout of your existing loan. You typically need to cover valuation costs upfront, along with any discharge fees your current lender charges. Some lenders offer cashback incentives on refinance applications, which can offset these costs.
What Happens When Your Fixed Rate Period Ends
Fixed rates do not last forever. When your fixed period expires, your loan automatically reverts to the lender's standard variable rate unless you take action. That reversion rate is almost always higher than both the initial fixed rate and the lender's current advertised variable rates, which means your repayments jump unless you refinance again or negotiate a new rate.
Most lenders contact you a few months before your fixed rate expiry to offer renewal options. You can switch to another fixed term, move to a variable rate with the same lender, or refinance to a different lender entirely. The most effective approach is to review your options at least three months before expiry so you have time to compare rates, submit an application, and settle before the reversion occurs.
If your business income has improved since you first locked in the fixed rate, you may have access to a wider range of products. If income has declined, refinancing becomes more difficult, though it is still worth exploring whether your existing lender will offer a discounted rate to retain you.
The Cost of Switching and How to Account for It
Refinancing costs include application fees, valuation fees, discharge fees from your current lender, and sometimes settlement or legal fees depending on the lender. Application fees vary widely, with some lenders charging nothing and others charging up to $600. Valuation fees typically sit between $200 and $400 for residential properties in Sydney. Discharge fees from your existing lender range from $150 to $400.
You also need to consider any break costs if you are currently on a fixed rate and want to exit early. Fixed rate break costs are calculated based on the difference between your current rate and the wholesale rate your lender can now lend at for the remaining fixed period. If rates have fallen since you fixed, break costs can run into thousands of dollars. If rates have risen, break costs are often zero or minimal.
For sole traders, the cost of switching should be weighed against the monthly saving or the value of repayment certainty. If locking in a fixed rate saves you $200 per month in repayments, and your total switching costs are $1,500, you recover those costs in eight months. Beyond that point, the ongoing saving or stability becomes the benefit.
Fixed Rate Features and What You Give Up
Most fixed rate loans come with restrictions that variable rate loans do not have. The two most common are limited extra repayments and no offset account access. Many lenders cap additional repayments at $10,000 to $20,000 per year during the fixed period. If you exceed that cap, you may trigger break costs. Offset accounts, which reduce the interest charged by offsetting your savings balance against your loan, are rarely available on fixed rate products.
For sole traders who experience irregular income, these restrictions can create friction. If you receive a large payment from a client and want to put it straight onto your mortgage to reduce interest, a fixed rate may prevent you from doing so without penalty. If you prefer to keep your business cashflow in an offset account so it reduces your home loan interest while remaining accessible, a fixed rate removes that option.
One solution is to split your loan between fixed and variable portions. You might fix 60% of your loan to lock in certainty on the majority of your repayments, while keeping 40% on a variable rate with an offset account and unlimited extra repayments. This approach gives you stability without completely sacrificing flexibility. A loan health check can help determine the right split for your situation.
When Refinancing to Fixed Does Not Make Sense
Switching to a fixed rate is not always the right move. If you plan to sell your property within the next one to two years, locking in a fixed rate may cost you more in break fees than you save in interest. If you expect a significant lump sum payment soon, such as a tax refund or client payment that you want to put toward your mortgage, a variable rate with unlimited extra repayments will serve you longer.
If current fixed rates sit higher than your existing variable rate, the switch only makes sense if you believe rates will rise further during the fixed period. Locking in a higher rate to avoid a potential future increase is a judgment call based on your risk tolerance and how much weight you place on certainty versus cost.
For sole traders whose income is trending downward or unpredictable, committing to a fixed repayment can create pressure during lean months. A variable rate gives you the option to reduce repayments to interest-only if needed, though this usually requires lender approval and is not automatic. Fixed rates rarely offer that flexibility.
How to Compare Fixed Rate Offers
When comparing fixed rate offers, look beyond the advertised rate. Check the comparison rate, which includes most fees and gives a clearer picture of the true cost over the life of the loan. Check what happens at the end of the fixed period and what the reversion rate will be. Check whether the loan includes a redraw facility, and if so, whether it allows you to access any extra repayments you make during the fixed term.
Also consider the lender's serviceability approach for sole traders. Some lenders apply aggressive discounts to business income, which can reduce your borrowing capacity and limit your refinancing options. Others assess sole trader income more favourably, particularly if your income has been stable or growing over the past two years. Working with a broker who understands how different lenders assess self-employed income will give you access to a wider range of fixed rate products.
The difference between a 4.5% fixed rate and a 4.8% fixed rate might seem small, but over three years it adds up. On a $600,000 loan, that 0.3% difference costs roughly $5,400 in additional interest over the fixed period. For a sole trader managing thin margins, that amount is not trivial.
Refinancing While Retaining Your Existing Lender
You do not always need to switch lenders to move from variable to fixed. Many lenders allow you to refinance internally, which avoids discharge fees and sometimes reduces application costs. Internal refinancing is faster because the lender already holds your property security and has your financial history on file.
The downside is that your existing lender may not offer the most competitive fixed rate available. Loyalty does not usually translate into pricing advantages in mortgage lending. Lenders often reserve their sharpest rates for new customers to attract business, while existing customers are offered standard rates unless they push back.
If you want to stay with your current lender for convenience, call them and ask what fixed rate they can offer. Then compare that rate to what you could access by refinancing elsewhere. If the difference is marginal and you value the simplicity of staying put, an internal switch may work. If you can save meaningfully by moving, the effort of refinancing externally is usually worth it.
Call one of our team or book an appointment at a time that works for you to discuss whether refinancing to a fixed rate aligns with your income pattern and business goals.
Frequently Asked Questions
Can I refinance from variable to fixed if I am a sole trader?
Yes, sole traders can refinance from variable to fixed rate loans. Lenders assess your application using two years of tax returns and business financials, and approval depends on your income consistency and the property value.
What happens when my fixed rate period ends?
When your fixed period expires, your loan reverts to the lender's standard variable rate, which is usually higher than advertised rates. You can refinance, switch to another fixed term, or negotiate a new rate with your lender before expiry.
Do fixed rate loans allow extra repayments?
Most fixed rate loans cap extra repayments at $10,000 to $20,000 per year. Exceeding that limit may trigger break costs, and offset accounts are rarely available on fixed rate products.
How much does it cost to refinance to a fixed rate?
Refinancing costs include application fees, valuation fees, and discharge fees, typically totalling between $500 and $1,500. If you are exiting an existing fixed rate early, you may also face break costs depending on rate movements.
Should I split my loan between fixed and variable?
Splitting your loan allows you to lock in certainty on part of your repayments while keeping flexibility on the rest. This works well for sole traders who want stability but need access to offset accounts or unlimited extra repayments.
