What is a mortgage offset account & how do they work?

An offset account may help you pay less interest on your home loan. Here’s our guide to mortgage offset accounts and how they work.

What is an offset account?

An offset account is a savings account or transaction account linked to your home loan account. The account’s balance (or a proportion of that balance) is ‘offset’ daily against your home loan balance, and as a result you’re only charged interest on the difference between the total loan balance and the amount offset.

This means the lender charges you less in interest because they are not charging you interest on the full, actual remaining balance of your loan.

Offset accounts may be linked to either a variable rate loan or a fixed rate loan. Some home loans may specify that the offset applies for a fixed term, such as a 100% offset for a year against a 1-year fixed rate loan.

How does an offset account work?

Offset accounts work by offsetting up to 100% of the balance of the linked savings or transaction account against the balance of the linked loan.

In the case of a mortgage offset account, the balance of the account reduces the balance of the mortgage that incurs interest. For example, if you had a loan of $350,000, with $100,000 in a linked 100% offset account and $100,000 repaid, you may only pay interest on $150,000 of your balance.

Source: Canstar (YouTube)

Variable Home Loans Featuring Offset Accounts

The table below displays a snapshot of the lowest rate variable home loan products with offset accounts available on Canstar’s database and links to providers’ websites. The table is sorted by the current rate (lowest-highest), then by provider name (alphabetically).

Before committing to a home loan product, check upfront with the provider and read the product’s terms and conditions to confirm the details of the offset account and whether the product meets your needs.

Based on residential variable home loans available for a loan amount of $500,000 in QLD at 80% LVR and principal and interest repayments. *Read the Comparison Rate Warning.

3-Year Fixed Home Loans Featuring Offset Accounts

The table below displays a snapshot of some of the lowest interest rates for 3-year fixed home loan products on Canstar’s database with offset accounts and links to the providers’ website. The table is sorted by the current rate (lowest-highest), then by provider name (alphabetically).

Before committing to a home loan product, check upfront with the provider and read the product’s terms and conditions to confirm the details of the offset account and whether the product meets your needs.

Based on residential 3-year fixed home loans available for a loan amount of $500,000 in QLD at 80% LVR and principal and interest repayments. *Read the Comparison Rate Warning.

Types of offset accounts

There are two types of offset accounts:

  • Balance offset account: These accounts offset the interest payable on the mortgage by the balance of the account. The percentage of the balance that will be offset can range right up to 100%. However, a partial offset account may only offset your mortgage by a portion of the balance, for example, a 50% offset account will only offset the interest bearing portion of your mortgage by 50% of your offset account balance. So the higher the percentage of the offset account, the more you will save in interest on your mortgage.
  • Interest offset account: These accounts offset the interest payable on your mortgage by the interest earned in the account. However, this could be substantially less than the interest rate of the mortgage. Depending on the interest rates of your mortgage and offset account, these accounts are likely to be significantly less favourable than balance offset accounts, but they are also less common. 

Pros and cons of an offset account

First, by having a decent amount of money in your offset account, you might effectively cut years from your home loan and pay thousands of dollars less in interest. You don’t necessarily need a huge amount of spare savings, though – every cent in your offset account is saving you money in interest off your loan, for a 100% offset account.

Secondly, an offset account is simple for most people to manage. You could have your salary deposited into a standard savings account or transaction account every payday, and if it was linked as an offset account to your loan it would automatically save you money on your monthly interest payments.

And thirdly, having an offset account can be an easy way to keep excess funds at hand while still minimising your interest payments on your mortgage, so if your financial situation changes or if something unexpected like a medical emergency were to happen, then you will be able to easily access the money that has been offsetting your mortgage instead of having to redraw on extra repayments you have made on your home loan, which is often limited to minimum amounts and/or come with fees.

Offset accounts can be a great tool for some home owners, particularly with the flexibility they can provide. They can also potentially save you money and cut time off your mortgage.

However, keep in mind you may find yourself either paying an additional fee for a loan with an offset account, or alternatively, you could end up paying a higher interest rate on your mortgage. The financial benefit of a mortgage offset account will depend on a number of factors, such as the interest rate and fees of comparable loans (with or without an offset facility) and how much money you are likely to keep in your account. So, it is important to weigh up your individual circumstances and determine if an offset account is right for you.

How much could you save using an offset account?

An offset account can be a great way to save thousands of dollars in interest on your home loan.

As a purely hypothetical example, Canstar has calculated the benefit of holding either $20,000 or $40,000 in a mortgage offset against a $300,000 home loan.

As this table shows, even a relatively small amount of savings stored in an offset account could save you thousands of dollars in interest over just three years, allowing you to repay more of your loan amount faster. When you repay your loan faster, you pay even less in interest over the life of your loan.

Interest paid on a $300,000 loan over three years
Product Average Rate Monthly Repayment Amount owing after 3 years Interest paid over 3 years Amount repaid after 3 years
Variable 3.64% $1,370.69 $282,503.82 $31,848.59 $17,496.18
Variable with $20,000 in offset 3.64% $1,370.69 $280,199.80 $29,544.57 $19,800.20
Variable with $40,000 in offset 3.64% $1,370.69 $277,895.78 $27,240.55 $22,104.22
Source:  www.canstar.com.au – 6/04/2020.  Average Rate based on owner occupier variable loans that have an offset account, with a loan amount of $300,000, 80% LVR, principal & interest repayments; excluding introductory and first home buyer loans.  Interest and repayment calculations assume a loan term of 30 years.

Are your monthly repayments the same with an offset account?

As you can see from the table above, when you have an offset account, your monthly repayments typically stay the same in dollar amounts. However, this can be a good thing because it means you can repay your loan faster.

Each month, more money is going towards paying off the principal (your loan amount) because the offset amount is reducing how much interest you owe. Reducing the amount of interest you pay each month can help you to put more of your money towards repaying your loan faster.

How to choose an offset account

When choosing a home loan that allows an offset account, consider features such as:

  • An account where 100% of your total balance is offset against your loan.
  • No minimum balance, so every cent in your offset account is working for your loan.
  • No maximum balance limit, so you can keep growing your savings and paying less and less in interest on your home loan.
  • Low or no fees on the offset account.
  • The ability to use your offset account for the transaction types you need, e.g. debit card, ATMs, EFTPOS, BPAY, direct debit, and in-branch.
  • The ability to link multiple accounts as offset accounts to your loan.
  • An equal or superior savings interest rate to your mortgage interest rate, if possible.

The last dot point is particularly important if your mortgage is being offset by an interest offset account. If this is the case, you don’t earn interest in the traditional sense, but rather you are offsetting the interest of your mortgage. This may have different tax implications for you compared to if you were earning interest in the traditional sense, so consider contacting the Australian Taxation Office or seeking professional tax advice.

Offset account or redraw facility?

Offset accounts and redraw facilities are both common features of a home loan, and it is important to know which would work best for you:

  • Money sitting in an offset account remains at call and accessible, whereas you must make an application to withdraw money using a redraw facility, so it isn’t always accessible the same day.
  • An offset account just holds any spare savings you have, while a redraw facility is only available for any additional repayments you have made above and beyond your usual monthly repayments. You can only “redraw” the extra that you have already paid.
  • Offset accounts may have low or no account-keeping fees and some transaction fees, compared to the redraw fee that is typically charged to redraw money using a redraw facility.
  • Offset accounts require self-discipline to save money instead of spending it, while redraw facilities enforce discipline for many people, because you have to apply in advance if you want to redraw money to spend.

Other ways to save money on your home loan

Being mortgage-savvy could save homeowners tens of thousands of dollars over the life of their loan, depending on the loan size and savings techniques used. Here are some ideas worth weighing up that may help improve your home loan saving strategies:

  1. Secure a lower interest rate: Do some research on the Canstar website to get an idea of what interest rates are available for home loans with the features you are looking for, then consider negotiating a lower interest rate with your current lender or refinancing. Also, check you’re not paying too much in fees.
  2. Keep your repayments the same: If you get a lower rate, maintaining your monthly repayments at their previous level will help you repay your loan faster and save money on interest over the life of your loan.
  3. Increase your regular payments: Making an effort to put some extra spare cash towards your mortgage (additional repayments) each month can help you repay your loan faster.
  4. Pay fortnightly: With 26 fortnights in a year compared to only 12 months, paying fortnightly could be a way to pay extra off your mortgage without really noticing because you’re basically making an extra repayment each year.

Or check our range of Home Loan Calculators to help you get a better handle on your financial situation.

Learn more about Home Loans

This article was originally written by TJ Ryan.

Thanks for visiting Canstar, Australia’s biggest financial comparison site*

Ellie McLachlanEllie is a Senior Finance Journalist within the Editorial team at Canstar, responsible for leading the news function for the business. She specialises in covering all things home loans and housing, breaking finance industry news and monitoring financial product movements. Ellie has a keen interest in analysing data and research, and is passionate about sharing people’s personal experiences with managing money. Ellie studied a Bachelor of Journalism and Arts (Peace and Conflict Studies) at UQ and has dipped her toe in digital, broadcast and print media, including at organisations such as The Urban List, The Courier Mail, 4ZZZ and APN News & Media. Follow her on Twitter and LinkedIn.
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