Why Should First Home Buyers Weigh Fixed Rates and Offsets?

A fixed rate locks your repayment in, and an offset account can cut the interest you pay on a variable loan. For most first home buyers the real question is whether you want certainty, flexibility, or a mix of both.

If you are buying your first home in Revesby, you will see both features on almost every loan comparison. This article explains how each one works, what it costs you, and how to decide.

How Does a Fixed Rate Home Loan Work?

A fixed rate home loan keeps your interest rate the same for an agreed period, so your repayment stays the same during that time. After the fixed period ends, the loan moves to the lender's variable rate unless you choose a new fixed term.

That certainty is handy when you are budgeting for the first time. You know exactly what leaves your account each month, even if rates move.

The trade-off is flexibility. Fixed loans often limit extra repayments, and many don't allow a full offset account. If you sell or refinance before the fixed term ends, you may pay break costs, and these can be significant if rates have fallen. Check the lender's extra repayment cap before you sign. If your fixed term is coming to an end, our fixed rate expiry page explains your options.

What Is an Offset Account and How Does It Save Interest?

An offset account is a transaction account linked to your home loan. The balance in it is subtracted from your loan balance when interest is calculated, so you pay interest only on the difference.

Your money stays accessible, which is the big difference from putting extra cash straight into the loan. The trade-off is cost. Loans with a full offset account sometimes carry a higher rate or an annual package fee, so the saving needs to outweigh that cost. It also only helps if you actually keep money in the account.

Offsets work with variable loans in most cases. Some lenders offer one with a fixed loan, but it may be partial or not offered at all, so ask each lender.

Fixed Rate vs Offset Account: A Worked Example

To see the difference, consider a first home buyer in Revesby with a $600,000 loan over 30 years. We will use an illustrative rate of 6.75% p.a. for the example. At that rate, the repayment on a principal and interest loan is about $3,891 a month.

Say this buyer has $30,000 sitting in savings for emergencies. If it sits in an offset account on a variable loan, interest is charged on $570,000 instead of $600,000. At 6.75%, that is roughly $2,025 less interest over a year, and the $30,000 is still there if the hot water system dies. The saving only lasts while the money stays in the account, and the rate on a real loan will differ.

Now suppose the buyer values certainty more than flexibility and fixes the whole loan instead. The repayment stays at about $3,891 a month for the fixed term. They gain peace of mind, but give up the offset saving and may face limits on extra repayments.

The outcome here is a trade-off, not a winner. The buyer who fixes gets certainty. The buyer who uses an offset gets flexibility and lower interest while savings remain in the account. You can test your own numbers with a repayment calculator, and our team can run them for you.

Can You Split Your Loan Between Fixed and Variable?

Yes, many lenders let you split a loan, so part sits on a fixed rate and part on a variable rate. The variable portion can usually be linked to an offset account.

A common idea is to fix enough to keep your core repayment steady, and leave the rest variable so your savings can work harder. The cost is added complexity: you manage two balances, and the fixed portion still has the usual break costs and extra repayment limits.

Your borrowing power and deposit size affect which loans you can choose from. Our borrowing capacity page is a good place to start, and our home loans page covers the range of loan types we can compare for you.

Do Government Schemes Change Which Loan Features You Can Use?

Government support for first home buyers is delivered through participating lenders, and the loan itself comes from that lender. Lenders set the loan features available with the 5% Deposit Scheme, such as fixed rates or offset accounts, so ask the lender directly.

The scheme lets eligible first home buyers buy with a 5% deposit, and Housing Australia backs the lender for part of the loan so no lenders mortgage insurance is payable. Applications are made only through a participating lender. There are also price caps, which depend on the suburb and postcode in Housing Australia's postcode search tool, so check the cap for your Revesby purchase early.

If you want a fixed rate or offset account and also want to use a scheme, confirm that the lender offers both together. Our first home buyers page outlines the support available.

Which Option Suits Your Situation?

A fixed rate suits you if a steady repayment matters more than flexibility. An offset account suits you if you have savings to keep in it and want access to that cash.

If your budget is tight and a rise in repayments would hurt, fixing part of the loan gives you a buffer. If you expect your income to grow or you plan to build savings, a variable loan with an offset gives you room to move.

The pre-approval process is a good time to compare both options, because you can see what each lender offers before you make an offer on a home. The mix you choose today can also be changed later, and our loan health check can show whether your loan still fits.

If you are buying in Revesby, our local team at Mortgage Broker in Revesby can walk you through the options. Call one of our team or book an appointment at a time that works for you, and we will compare fixed, variable and offset options based on your own goals.

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