When to Use Split Rates for a Semi-Detached Purchase

When a Semi Purchase Changes Your Loan Requirements

A semi-detached house in the Inner West sits in a different price bracket to a unit, and that changes what you need from a home loan. You're looking at something between $1.2 million and $1.8 million in suburbs like Stanmore, Dulwich Hill or Marrickville, and at that price point, most buyers want the security of a fixed rate but also need the flexibility of an offset account to park rental income, savings or a sale deposit from their current place.

A split loan gives you both. You fix part of your loan to lock in repayments on a chunk of the debt, and you leave the rest on a variable rate with an offset attached. It's not a complicated product, but it does need to be set up with the right proportions and the right lender, otherwise you end up paying for features you're not using or missing the ones you actually need.

How Split Rates Work in Practice

You nominate the percentage you want fixed and the percentage you want variable when you apply. Most buyers split 50-50 or 60-40, though some go 70-30 if they want more rate protection and don't expect to hold much in offset. The fixed portion doesn't come with an offset, so any cash you want to use to reduce interest needs to sit in the offset account linked to the variable portion.

Consider a buyer purchasing a semi in Petersham at the current median. They've sold a unit in Ashfield and have $180,000 from the sale sitting in their transaction account waiting to go toward renovations over the next 18 months. If they fix the whole loan, that cash sits there doing nothing. If they leave the whole loan variable, they're exposed to rate rises on the full amount. They split the loan 60 per cent variable with offset, 40 per cent fixed. The $180,000 goes into the offset, which reduces the interest charged on the variable portion by about $950 a month at current rates. The fixed portion stays steady regardless of what the RBA does. When they draw the cash out for the renovation, the offset benefit reduces, but the fixed portion is still holding steady.

Why Semi Purchases in the Inner West Suit Split Structures

The Inner West has a lot of semis that need work, and a lot of buyers who are upsizing from units or terrace houses they've already owned. Both of those situations create a need for offset access. If you're renovating, you might have a gap between settlement and when you start the build, or you might be staggering payments to a builder over six months. If you're selling another property, you might have equity sitting in your account for a few weeks or months while you figure out what to do with it. A variable rate portion with offset lets you reduce interest during that period without paying down the loan permanently.

The fixed portion handles the other part of the equation, which is that most buyers don't want their repayments jumping around when they've just taken on a bigger mortgage. Fixing half or more of the loan means your minimum repayment stays predictable even if rates move. You're not trying to guess where rates are heading, you're just making sure that part of your budget is locked in.

The Lender Difference on Split Loans

Not all lenders price their split loans the same way, and not all of them link offsets to the variable portion without conditions. Some lenders charge a higher rate on the variable portion of a split loan than they do on a standalone variable loan. Some cap the offset benefit or require a minimum balance. Some lenders let you fix for one, two, three, four or five years, while others only offer one, three and five. If you're planning to refinance or pay down the loan in three years, a five-year fixed term might leave you with break costs you didn't expect.

We regularly see buyers choose a lender based on the headline rate without checking how the split structure actually works. The rate is important, but the features matter more if you're going to use them. A lender that lets you split in any proportion, link a full offset to the variable portion, and fix for the term that suits your situation is worth more than a lender that's 10 basis points cheaper but forces you into a 50-50 split with a capped offset.

Adjusting the Split Over Time

You can't change the split percentage during a fixed term without breaking the fixed portion and paying break costs, but when the fixed term ends, you can choose a new split, fix again at a different percentage, or move the whole lot to variable. Most buyers who split their loan the first time end up doing it again when the fixed term expires, because the reasons they needed the structure in the first place haven't changed.

If you've paid down the variable portion using offset and extra repayments, you might fix a higher percentage the second time around because you've got less debt and less need for offset access. If you've drawn on the offset and the loan balance has stayed steady, you might stick with the same split or increase the variable portion to keep the offset working.

When a Split Loan Doesn't Make Sense

If you're not going to use an offset account and you just want rate protection, fix the whole loan. If you want maximum flexibility and you're comfortable with rate movements, go variable with offset. A split loan is for buyers who need both, and if you don't need both, you're paying for a structure you're not using.

Some buyers also assume a split loan will get them a lower rate overall by averaging the fixed and variable rates, but that's not how it works. You pay the fixed rate on the fixed portion and the variable rate on the variable portion. If the variable rate is higher than the fixed rate, your average rate will be higher than the fixed rate alone. The value is in the flexibility and the offset access, not in rate arbitrage.

Setting Up a Split Loan for a Semi Purchase

When you apply for a home loan, you nominate the split percentage and the fixed term upfront. Some lenders let you adjust the split after approval but before settlement, which is useful if your deposit amount or settlement timing changes. Once the loan settles, the split is locked in until the fixed term ends.

If you're using the Australian Government 5% Deposit Scheme, not all participating lenders offer split loans, and some that do will only let you split once you've built a certain amount of equity. If you're planning to use offset from day one, check that the lender allows it on a split structure under the scheme before you apply.

The application process is the same as any other owner occupied home loan. The lender assesses your borrowing capacity, runs serviceability at the higher of the fixed or variable rate plus the buffer, and approves the loan subject to valuation and other conditions. The split itself doesn't change your borrowing capacity, but the rate you're assessed at might vary depending on which portion is higher.

Why We Set Up Most Semi Purchases as Split Loans

Most buyers in the Inner West who are purchasing a semi are coming from a smaller property, renovating after settlement, or holding cash for another purpose in the short term. A split loan handles all of those situations without forcing you to choose between offset access and rate protection. It's not the right structure for everyone, but for buyers who need both features, it's the most practical option.

If you're buying a semi and you're trying to figure out whether a split loan makes sense for your situation, call one of our team or book an appointment at a time that works for you. We'll look at what you're holding in offset, what your rate protection priorities are, and which lenders will give you the structure that actually fits.

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