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Offset Accounts and Redraw Facilities Explained

Two features of home loans—offset accounts and redraw facilities—can help you save money and build financial flexibility. Understanding how they work will help you choose the right loan structure.

An offset account is a separate savings account linked to your home loan. Money you deposit in the offset account is offset against your loan balance for interest calculation purposes. If you have a AUD 500,000 mortgage and AUD 50,000 in an offset account, the lender charges interest only on AUD 450,000.

The advantage is significant. If you have AUD 50,000 sitting in an offset account instead of a regular savings account, you’re saving interest on that amount at your mortgage rate (currently around 4%–5%). That’s AUD 2,000–AUD 2,500 per year saved. The money remains accessible—you can withdraw it anytime—but it’s working hard to reduce your debt.

A redraw facility allows you to borrow against any extra payments you’ve made toward your loan. If you’ve made AUD 10,000 in extra payments on your AUD 500,000 mortgage, you can redraw AUD 10,000 if you need it. This gives you flexibility—you can build up a buffer and access it in emergencies without having to break the loan or apply for a new loan.

The key difference: with an offset account, you hold the money separately and use it to reduce interest. With a redraw, you pay extra into the loan, and the money stays there until you redraw it. Both achieve similar outcomes, but the psychology is different.

Which is better? Offset accounts are generally preferred by financial advisors because:

  1. The money is more accessible (it’s in a separate account you can see)
  2. You’re not tempted to overspend if you can’t clearly see your extra payments
  3. The interest savings are immediate and compounding

Redraw facilities work well if you:

  1. Want to lock away extra payments (out of sight, out of mind)
  2. Prefer a simpler structure (one account instead of two)
  3. Don’t mind the slight friction of having to formally redraw if you need the money

Some loans offer both—you can have an offset account and a redraw facility. This gives you maximum flexibility.

Here’s a practical example. You earn AUD 100,000 per year and want to pay down a AUD 500,000 mortgage faster.

Scenario one (offset account):

  • You maintain a AUD 30,000 emergency fund in the offset account
  • The loan balance for interest purposes is AUD 470,000 (AUD 500,000 minus AUD 30,000 offset)
  • Interest saved annually: AUD 1,200–AUD 1,500 (30,000 × 4–5%)
  • The money is liquid—you can access it anytime

Scenario two (redraw facility):

  • You make regular mortgage payments plus AUD 200 extra per month
  • That’s an extra AUD 2,400 per year going toward principal
  • You’re building up a redraw buffer of AUD 2,400 per year
  • After 12 months, you can redraw AUD 2,400 if needed

Over time, the offset account approach tends to be more tax-efficient and simpler. But the redraw facility is valuable if you like the discipline of extra payments and want flexibility.

Tip: even if your loan doesn’t have an offset account feature, you can create a similar effect by maintaining a separate savings account and using disciplined budgeting to allocate money toward it. The offset just automates the interest calculation.

Another tip: if your loan doesn’t allow offset accounts but does allow redraw, use it aggressively. Every extra dollar paid into the loan early reduces your total interest cost significantly.

Choosing a loan with strong offset or redraw features is one of the best decisions you can make for long-term financial health.