Redraw vs Offset: How Tax Impacts Your Home Loan
- Liem Ngo
- Jan 9
- 2 min read
When comparing redraw vs offset accounts, most borrowers focus on interest savings. But the tax impact of redraw and offset accounts can be far more important, especially if your home later becomes an investment property.
Understanding this difference early can save tens of thousands of dollars in lost tax deductions.

What is a redraw facility?
A redraw facility allows you to withdraw extra repayments you’ve made on your home loan.
From a tax perspective, the purpose of the redrawn funds matters. If you redraw money for personal use (cars, holidays, weddings), that portion of the loan becomes non-deductible, even if the property later becomes a rental.
This creates what accountants call a mixed-purpose loan, which must be apportioned every year.
What is an offset account?
An offset account is a separate savings account linked to your loan. The money in the offset reduces the interest charged, but does not change the loan balance.
From a tax point of view:
The loan purpose remains intact
No mixed-purpose loan is created
Future mortgage interest tax deductions are preserved
This makes offset accounts the preferred structure for borrowers who may one day invest.
Redraw vs offset: tax impact example
Let’s say you:
Borrow $630,000
Save $60,000 over time
With redraw (never redrawn):
Loan reduces to $570,000
Interest is deductible only on $570,000
With offset:
Loan remains $630,000
Offset holds $60,000
Interest charged on $570,000 while living there
If it becomes an investment, interest on $630,000 is deductible
Couples vs single buyers: why offset matters more
The redraw vs offset decision is riskier for couples.
Common issues with redraw:
One partner redraws without understanding tax impact
Funds used for private purposes
Loan becomes contaminated unintentionally
For couples, especially with joint loans or unequal ownership shares, redraw can:
Increase accounting complexity
Cause disputes
Permanently reduce deductible debt
Offset accounts eliminate these risks by keeping savings and spending separate from the loan itself.
When does redraw make sense?
A redraw facility may be acceptable if:
The property will never become an investment
You are highly disciplined
You understand the long-term tax consequences
However, for most Australian borrowers, especially first home buyers and couples, an offset account offers superior flexibility and tax efficiency.
Final takeaway:
Redraw is a discipline-based strategy. Offset is a structural solution. If there is any chance your home could become an investment, an offset account is almost always the smarter choice.
Disclaimer:
The information provided on this website is for general information and educational purposes only. It does not take into account your personal objectives, financial situation, or needs, and should not be relied upon as financial, legal, or tax advice. While we strive to ensure the content is accurate and up to date, we make no guarantees of its completeness, reliability, or suitability. Any reliance you place on the information is strictly at your own risk. We recommend that you seek independent professional advice before making any financial decisions, including from a licensed mortgage broker, financial adviser, or tax professional. References to government schemes, grants, or lender products are subject to change and eligibility criteria. Please confirm details with the relevant authority or provider. We are not responsible for any loss, liability, or damage incurred as a result of the use of this website or its content.





Comments