How to Choose Between Fixed, Variable & Split Loans

Which loan structure makes sense when you're borrowing on a single income

The choice between fixed, variable, and split loan structures comes down to how much certainty you need in your repayments and whether you want flexibility to make extra payments or pay the loan down faster. When you're separating, a single income often means less room for surprise rate rises, but locking in too much of your loan can limit your ability to adapt as your financial situation changes.

Consider someone refinancing to keep the family home after separation. They're taking on the full mortgage on one income, replacing what was previously shared. If they fix the entire loan amount at a rate that feels manageable today, they're protected from rate rises for the fixed period. But if they receive a property settlement payment six months later and want to pay down the loan without penalty, they'll face break costs that can run into thousands of dollars. A split loan structure, where part of the loan is fixed and part remains variable, would have allowed them to direct that lump sum to the variable portion without penalty while still holding rate protection on the fixed portion.

Fixed rate loans and when they suit someone rebuilding after separation

A fixed rate loan holds your interest rate steady for a set period, typically between one and five years. Your repayments stay the same regardless of what happens to the official cash rate during that period. This structure suits anyone who needs to budget tightly and can't absorb unexpected increases in their monthly repayment.

After separation, many people are managing on a single income for the first time in years. If you're refinancing to buy out your partner, a fixed rate gives you certainty while you adjust to new expenses. You know exactly what your repayment will be each fortnight, which makes it easier to manage other costs like school fees, childcare, or legal expenses that often follow separation.

The downside is inflexibility. Most fixed rate loans cap extra repayments at $10,000 to $30,000 per year depending on the lender. If you go beyond that limit or want to pay the loan off early, you'll face break costs. Those costs are calculated based on the difference between your fixed rate and the rate the lender can now earn by lending that money elsewhere. If rates have fallen since you fixed, break costs can be substantial.

Variable rate loans and the flexibility that matters when circumstances shift

A variable rate loan moves up and down with the lender's standard rate, which generally follows the Reserve Bank's cash rate changes. Your repayments can increase or decrease depending on market conditions. The benefit is flexibility: you can make unlimited extra repayments, redraw funds if the loan allows it, and pay the loan off early without penalty.

Variable rate loans often come with features that fixed loans don't, including an offset account that reduces the interest you're charged based on the balance you hold in a linked transaction account. If you're expecting a property settlement or a payout from shared assets, an offset account lets you park that money and reduce your interest without committing it to the loan permanently. You keep access to the funds while they work to lower your repayments.

This structure works well if your income is stable enough to absorb rate rises or if you're confident you'll have extra cash to put toward the loan over time. In our experience, people who are self-employed or receiving variable income from contract work often prefer the flexibility of a variable loan, even if it means accepting some uncertainty in repayments.

Split loan structures and how they balance certainty with access

A split loan divides your total borrowing into two portions: one fixed and one variable. You choose the split, commonly 50/50 but it can be any proportion that suits your situation. The fixed portion gives you rate protection and predictable repayments on that part of the loan. The variable portion gives you flexibility to make extra repayments, use an offset account, and adapt as your circumstances change.

This structure is often the most practical option for someone separating. If you're refinancing to consolidate debt and take on the mortgage in your own name, you might fix 60 per cent of the loan to lock in repayments you can manage, then keep 40 per cent variable so you can make extra repayments as your financial position stabilises. If you receive a lump sum settlement, you direct it to the variable portion. If rates rise, the fixed portion shields you from the full impact.

The trade-off is that you're managing two loan accounts with different rates and features. Some lenders charge separate fees for each split portion, which can add to your overall cost. It's worth asking your broker to compare the total fee structure across lenders before committing to a split.

Choosing a fixed rate period that aligns with your settlement timeline

If you're fixing part or all of your loan, the length of the fixed period matters. A one-year fix gives you short-term certainty but requires you to renegotiate or revert to a variable rate quickly. A five-year fix locks you in for longer, which can be helpful if you want stability but limits your options if your situation changes.

When you're going through separation, your financial position might shift within the next year or two. You might sell the property, receive a settlement, or decide to buy a different home. Fixing for too long can trap you in a structure that no longer suits. Fixing for too short a period can leave you exposed to rate rises before you've had time to adjust your budget.

Many people in this situation choose a two or three-year fix, long enough to provide certainty through the immediate transition but short enough to renegotiate once the property settlement is finalised. If you're planning to sell the home within a specific timeframe, match your fixed period to that timeframe so you're not paying break costs when you exit the loan.

What offset accounts and redraw facilities actually mean when you need access to funds

An offset account is a transaction account linked to your home loan. The balance in the offset account is subtracted from your loan balance before interest is calculated. If you have a $400,000 loan and $20,000 in your offset account, you're only charged interest on $380,000. You keep full access to the $20,000 and can spend or move it at any time.

A redraw facility lets you access extra repayments you've made on your loan. If your repayment is $2,500 per month and you pay $3,000, the extra $500 builds up as available redraw. You can pull that money back out if you need it, though some lenders charge fees or impose minimum redraw amounts.

Offset accounts are generally only available on variable rate loans. If you're holding a lump sum from a settlement and want to reduce your interest without locking the money away, an offset account is the most flexible option. Redraw can be useful on a fixed loan where you've made extra repayments within the allowed cap, but the lender controls access and can change redraw conditions, so it's less reliable than an offset.

Refinancing an existing loan when your fixed rate is about to end

If you're currently on a fixed rate loan that's coming to the end of its term, you'll revert to the lender's standard variable rate unless you take action. That reversion rate is often higher than the discounted variable rate offered to new customers, which means your repayments could jump even if the official cash rate hasn't changed.

This is a common scenario after separation. One partner may have taken on the existing loan in their own name, and the fixed period agreed to during the relationship is now ending. It's worth reviewing your options at least three months before the fixed period expires. You can negotiate a new fixed rate with your current lender, switch to a variable rate, or refinance to a different lender if they're offering a lower rate or more suitable features.

If your financial position has changed since you first took out the loan, refinancing might also let you access equity, consolidate other debts, or adjust your loan structure to suit your current income.

Lender rate discounts and how they apply to owner-occupied loans

Most advertised home loan rates include a discount off the lender's standard variable or fixed rate. That discount is not permanent. Lenders can reduce or remove the discount at any time, particularly on variable rate loans. If your discount reduces, your repayments increase even if the Reserve Bank hasn't moved rates.

When you're comparing loan options, ask what the comparison rate is and what the standard rate would be if the discount was removed. The comparison rate includes most fees and gives you a clearer picture of the true cost of the loan. For owner-occupied loans, lenders generally offer larger discounts than they do for investment loans, so make sure your loan is correctly classified as owner-occupied if that's how you're using the property.

Interest-only versus principal and interest repayments during separation

An interest-only loan structure means you're only paying the interest charged each month, not reducing the loan balance. This keeps your repayments lower in the short term but means you're not building equity or paying down what you owe. Most lenders limit interest-only periods to five years on owner-occupied loans, after which the loan reverts to principal and interest and your repayments increase.

Interest-only can be useful if you're managing tight cash flow immediately after separation and need to keep repayments as low as possible while you stabilise your income. But it's not a long-term solution for an owner-occupied home. If you're planning to stay in the property, switching to principal and interest repayments as soon as you can afford it means you're reducing the loan balance and building equity that you can access later if you refinance or sell.

Call one of our team or book an appointment at a time that works for you. We'll walk through your income, your settlement timeline, and what you're planning to do with the property, then structure a loan that gives you the certainty and flexibility you actually need.

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