Home Loan Offset Calculator

Calculate how much interest and years you can save on your loan with this offset calculator


When it’s time to own your first home, getting a mortgage secured should be the first step to making that dream a reality. But, handling and figuring out mortgages can be a nightmare, especially for a first-time home buyer. That’s when offset accounts come into play, a special financial tool that will help you, the borrower, save on interest payments. That way, you can potentially pay off the loan much sooner. That’s why in this article we will dive deeper into how you can utilise a home loan offset calculator, as well as learn more about how variable rate home loans let you make flexible repayments tailored to your financial circumstances, mortgages and what offset accounts actually are.

What is an offset account? 

You can think of these accounts as transactional accounts that are directly linked to a particular home loan balance. Whatever balance is held in your offset, it offsets the loan principal, which in turn reduces the rate for the loan requested. The main advantage of having such an account is the potential to save big on interest payable on your home loan rate. Of course, the higher the balance in the offset account, the more you can save on the overall interest that is occurring on the home loan. This is especially true when the mortgage length is quite long. That way the total amount repaid over a longer period of time is much lower. Overall, offset accounts offer flexibility because they allow borrowers to use those funds when they need them, without having to worry about penalties. As an example, a borrower that has a mortgage of $500,000 and an offset account with a balance of $100,000, that person will only be charged interest on $400,000. Sure, you could pay off your loan but we believe it’s beneficial to leverage the benefits of having an everyday offset account than just simply paying off your home loan entirely.

Why use a mortgage offset calculator

In this modern day and age, digital tools are on the rise and the amount of interest for a home loan interest calculator has been on the rise. The mortgage offset calculator offers insight for borrowers who are looking to pay less interest by using an offset account. You can save on your home loan payment by utilizing this calculator, adding funds to your offset account and then using the calculator to estimate how much you can save using an offset account. Every dollar in your offset counts goes into reducing interest on your loan across variable and fixed rates. Using this calculator is usually very easy and with it, you can simulate different scenarios before taking out a loan. Most tools let you calculate to see how much money you can save, and calculate the total interest paid on loan accounts if you pay off your loan faster.

How to use an offset calculator?

By now you probably already realised that a loan linked with an offset account will have a smaller interest rate than mortgage repayments than ones that don’t have offset accounts linked to your home loan. But, how does it all work? Keep in mind that this is just a simple explanation in which we can try and guide you on how to use our offset calculator to find out how much you can save in the long run. The first and usually most important part is how much money you plan on having in your offset account. Once you know and write your offset balance you can add the loan details. Each property has a different value so add the value of the property. Now, how much is your loan balance? Basically, how much are you willing to borrow? Finally, you can set the interest rate, based on your mortgage agreement.

Once all the information is added, the calculator compares the data and shows you how much interest you are saving, how much time you will save on your loan and you can even see the amount of interest charged to you if you have an offset account or don’t have one linked. You can run different simulations and see how it will affect the repayment and overall interest saving.

Having different comparison rates lets you make a much more informed decision because you will be armed with knowledge on how you can maximize your savings and make smarter financial decisions. When you explore different scenarios and run multiple simulations, you can see how you can use your offset account to benefit you the most in the long run. Use our home loan calculator to see how much interest you save and how you can pay your loan balance smarter. Now, of course, an offset calculator offers an estimate into this matter and it usually can’t be 100% accurate. That’s why it’s important to use this calculator to estimate your savings so that you can make a much more informed decision once you do decide to get a loan with an offset account.

Factors to consider when using an offset calculator

When trying to navigate the difficult landscape of mortgages and offset accounts, careful consideration is key. That’s why there are a few important factors that you must take into account before you start using the tool effectively. Let’s dive deeper into the topic of how these decisions can impact your mortgage repayments and improve your savings.

Loan Terms. By shortening the loan term, you reduce the interest paid over the course of the entire loan. Of course, a shorter loan accelerates equity accumulation and also helps to reduce interest costs, sometimes it can result in increased monthly repayments. What borrowers should do is look into their financial capacity and goals in order to determine which solution and loan will be best suited for their current circumstances.

Repayments. Making repayments toward the initial loan could potentially increase the savings that are generated by having an offset balance account. This offset counts towards reducing debt, especially if borrowers want to shorten the loan term, reduce the potential interest costs as well as achieve financial freedom quite sooner. Do keep in mind that you should always review your terms and agreement, check the home loan interest and term and only then you should consider making additional repayments. Extra repayments into your home loan might not always be possible and based on the agreement you made when you decided to get a home loan, you might even be subject to penalties or restrictions.

Better saving discipline. We all know that discipline is key, and being able to manage your finances to maximize savings is crucial if you’re trying to utilise your offsetting account to its maximum. If you want to use your offset account solely for increasing savings then regular contributions to it, as well as careful financial management, could bring a myriad of benefits by accelerating wealth accumulation. Based on how much is saved in your offset account, you could even establish a savings plan that you can align with your financial goal so that you can reduce interest on your home loan in the long run.


In conclusion, an offset transaction account is an important tool for borrowers seeking to maximize savings on a home loan. By having a positive offset account balance, borrowers reduce the loan amount and minimize interest costs that are associated with a variable rate home loan. You can utilise a calculator to see how much you can save on your home loan with an offset account and how much you won’t without an offset account. The comparison rate is true and it reflects the total cost of borrowing by taking into account the benefits of having a transaction offset account. So if you have an option to use your offset account to reduce the interest rate for the loan, we suggest doing that as soon as possible. A variable home loan with offset offers more flexibility and is usually a smarter financial choice in the long run.

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