What are Fixed Rate Loans and Extra Repayments?

Can You Make Extra Repayments on a Fixed Rate Home Loan?

Most fixed rate loans allow extra repayments up to a set limit, often $10,000 or $20,000 per year without penalty. Beyond that cap, you'll pay break costs if you overpay. Variable rate loans typically have no limit on extra repayments, which is why many first home buyers split their loan between fixed and variable.

If you're a primary teacher weighing up home loan options for your first property, this decision often boils down to how much certainty you want versus how much flexibility you need. Locking in a rate protects your budget against rate rises, but it also means you can't throw a bonus or tax refund at the loan without hitting a wall.

How Fixed Rate Extra Repayment Limits Work

When you fix your rate, the lender calculates the interest they'll earn over the fixed period based on your agreed repayment schedule. If you pay extra beyond the annual cap, you reduce their expected interest income. That's when break costs apply.

Consider a first home buyer who fixes $400,000 at 5.5% for three years with a $10,000 annual extra repayment limit. In year one, they receive a $12,000 tax refund and want to put the full amount toward the loan. They can pay $10,000 without penalty, but the remaining $2,000 triggers break costs, which could be anywhere from a few hundred to a few thousand dollars depending on current rates and time remaining on the fixed term.

Some lenders set the cap at $10,000, others at $20,000, and a handful allow $30,000. When you're applying for your first home loan, ask your broker to compare the extra repayment limits alongside the rate itself. A slightly higher rate with a higher cap might suit you if you expect irregular income from relief teaching or summer tutoring.

Why First Home Buyers Split Between Fixed and Variable

Splitting your loan lets you lock in certainty on part of your debt while keeping full flexibility on the rest. You decide the split based on how much certainty you need and how much extra repayment capacity you expect.

If you're buying at the current median in your area with a 5% deposit under the First Home Guarantee, you might fix 60% of the loan to protect most of your repayments from rate rises, then leave 40% variable so you can pay extra whenever you have surplus cash. The variable portion can also have an offset account attached, which a fixed loan cannot.

Offset Accounts Versus Extra Repayments on Fixed Loans

An offset account reduces the interest charged on your loan by the balance sitting in the account. You can't attach an offset to a fixed rate portion, which is another reason many first home buyers keep part of their loan variable.

In a scenario where you've fixed $300,000 and left $150,000 variable with an offset account, you can keep your emergency fund and savings in the offset account. Every dollar in that account reduces the interest charged on the $150,000 variable portion, and you still have instant access to the cash. Meanwhile, you can make up to the fixed cap in extra repayments on the fixed portion each year without penalty.

If your offset balance grows beyond what you're comfortable holding in cash, you can then withdraw funds and pay down the fixed portion up to the annual limit. This gives you control without locking away liquidity.

What Happens When Your Fixed Rate Ends

When the fixed period expires, your loan automatically reverts to the lender's standard variable rate unless you proactively refix or refinance. Most borrowers don't realise the reversion rate is often higher than the advertised variable rate offered to new customers.

If you're approaching fixed rate expiry, contact your broker at least three months before the end date. You can negotiate a new fixed rate with your current lender, switch to variable, or refinance to a different lender entirely. At that point, all the extra repayment caps that applied during the fixed term are gone, and you can pay as much as you like without penalty on a variable loan.

Should You Fix If You Plan to Pay Extra?

It depends on how much extra you plan to pay and whether you value certainty over flexibility. If you expect to pay more than $20,000 extra per year, fixing most or all of your loan doesn't make sense unless rates are rising sharply and you're willing to sacrifice flexibility for payment certainty.

If you're a primary teacher with predictable fortnightly pay and occasional relief shifts, you might prefer to fix a portion of the loan to lock in your minimum repayment, then direct any surplus income toward the variable portion or an offset account. That way, your core repayment is protected, but you're not penalised for getting ahead when you can.

When you're working through your home loan application with a broker, walk through a few scenarios based on your actual pay cycle, expected tax refunds, and any lump sums you're likely to receive. A split loan structure can be adjusted to suit your cash flow, and it doesn't cost extra to set up compared to a single fixed or variable loan.

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