Fixed Rate Loans & Extra Repayments: What to Know

Most fixed rate home loans allow extra repayments, but with a limit.

If you're self-employed and planning to put extra income into your loan when business is strong, the structure of your fixed rate home loan matters more than you might expect. Fixed rate products typically cap extra repayments at somewhere between $10,000 and $30,000 per year, depending on the lender. Go beyond that cap and you'll face break costs, which are the lender's way of recovering lost interest when you repay a fixed loan earlier than expected.

Why Fixed Rate Loans Cap Extra Repayments

Lenders fund fixed rate loans by locking in their own funding costs for the fixed period. When you repay more than agreed, they lose the interest income they'd factored into that funding arrangement. The repayment cap exists to limit that risk while still giving you some flexibility. Some lenders set the cap at $10,000 per year, others allow $20,000 or $30,000. A handful of lenders don't permit any extra repayments on fixed loans without triggering break costs.

Consider a self-employed borrower who fixes $400,000 at a rate they're comfortable with for three years. They have a strong year and want to put $50,000 into the loan. If the lender's cap is $20,000, the remaining $30,000 will trigger a break cost calculation. Depending on where rates have moved since the loan was fixed, that cost could be a few hundred dollars or several thousand. The borrower either pays the fee or redirects the surplus $30,000 into an offset account linked to a variable portion of the loan, assuming they've structured the loan as a split.

How a Split Loan Structure Changes the Equation

A split loan divides your borrowing between fixed and variable portions. The fixed portion gives you rate certainty, while the variable portion accepts unlimited extra repayments without penalty. For self-employed borrowers with irregular income, this structure allows you to lock in a portion of your loan while retaining full flexibility on the rest.

In a scenario where you borrow $500,000 and split it as $300,000 fixed and $200,000 variable, you can make unlimited extra repayments into the variable portion. If you also have an offset account linked to the variable loan, surplus cash sits there, reducing the interest you're charged while remaining accessible. The fixed portion still caps extra repayments, but you've reduced the impact of that cap by limiting how much of your total borrowing is fixed.

We regularly see self-employed borrowers who assume they need to fix their entire loan to get certainty, then feel restricted when they want to pay down the loan faster. A 50/50 split or a 60/40 split gives you both rate protection and repayment flexibility without locking up the entire amount.

What Happens When Your Fixed Rate Ends

When your fixed period expires, the loan typically reverts to the lender's standard variable rate unless you take action. At that point, all repayment caps disappear. You can pay off as much as you like without penalty. This is the moment to reassess your loan structure, particularly if you've been limited by repayment caps during the fixed period.

If you've built up cash in an offset account or held surplus funds during the fixed term, you can either redraw and apply it as a lump sum or continue with higher regular repayments now that the cap no longer applies. Many self-employed borrowers use this transition point to refinance to a lower rate or restructure the loan to suit a different phase of their business.

Offset Accounts and Fixed Rate Loans

Most lenders don't offer offset accounts on the fixed portion of a home loan. The few that do often charge a higher interest rate for the feature, which can negate the benefit. An offset account reduces your interest by treating the balance in the account as though it's been paid off the loan. When paired with a variable loan, it's one of the most effective tools for managing surplus cash without losing access to it.

If you're fixing part of your loan, the offset account should be linked to the variable portion. That way, when you have surplus income from your business, you can deposit it into the offset and reduce interest on the variable loan while keeping the funds available for business expenses or tax obligations. This is particularly relevant for self-employed borrowers who need to manage cash flow around quarterly tax payments or seasonal income swings.

Choosing the Right Fixed Rate Loan for Extra Repayments

Not all lenders set the same repayment caps, and not all borrowers need the same level of flexibility. If you know you'll only have modest surplus income during the fixed period, a lender with a $10,000 annual cap might be fine. If you're planning to put larger amounts into the loan when business is strong, look for a lender offering $20,000 or $30,000 in extra repayments per year, or consider fixing a smaller portion of the total loan.

Some lenders also allow you to make unlimited extra repayments on a fixed loan if you're willing to pay a higher rate. This can work if rate certainty is more important than getting the absolute lowest fixed rate available, but it's worth running the numbers before committing. The rate difference over three or five years might cost more than the break fees you'd pay for exceeding a standard cap.

Break Costs and When They Apply

Break costs aren't inherently punitive, they're a calculation. If rates have risen since you fixed your loan, the break cost might be zero because the lender can re-lend your funds at a higher rate. If rates have fallen, the break cost could be substantial because the lender has locked in funding at a higher cost than they can now charge new borrowers.

You'll encounter break costs if you exceed the annual extra repayment cap, if you refinance or pay out a fixed loan early, or if you sell the property during the fixed period. Some lenders also charge break costs if you switch from interest-only to principal and interest repayments during a fixed term, though this varies by lender. Before making any large extra repayment or restructuring a fixed loan, ask the lender for a break cost estimate. It's a formal calculation, not a guess, and they're required to provide it.

Variable Rate Loans and Unlimited Repayments

If repayment flexibility is your priority and you're prepared to accept rate movement, a variable rate loan removes all caps. You can pay off as much as you like, whenever you like, without penalty. For self-employed borrowers who want to aggressively reduce debt during strong income years, this can be the most effective structure.

You lose the rate certainty of a fixed loan, but you gain full control over how quickly you build equity. Variable loans also tend to offer features like offset accounts and redraw facilities as standard, which gives you more tools to manage cash flow. If you're unsure whether you'll need to access funds later, a variable rate loan with offset keeps your options open without locking you into a fixed term you might need to exit early.

Call one of our team or book an appointment at a time that works for you. We'll help you structure a loan that gives you the certainty you need without capping your ability to pay it down when your business allows.

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