Offset Account vs Making Extra Repayments — Which Is Better? (2026)
Both offset accounts and extra repayments reduce the interest you pay on your home loan. But they work differently — and the right choice depends on your situation, particularly whether the loan is for an owner-occupied home or an investment property.
The Core Difference
| Extra repayments | Offset account | |
|---|---|---|
| What happens to the money | Permanently reduces your loan principal | Reduces the interest-bearing balance only while funds remain in offset |
| Can you access it later? | Only via redraw (restrictions apply) | Yes — fully liquid, at any time |
| Interest saving | Identical to offset on the same amount | Identical to extra repayments on the same amount |
| Tax impact (investment loans) | Risky if redrawn for non-investment purposes | Safer — funds never enter the loan |
The interest saving is mathematically identical — $50,000 sitting in a 100% offset account saves the same interest as $50,000 paid off the loan principal. The difference is entirely about access and tax treatment.
When Extra Repayments Win
Extra repayments are the better strategy when:
1. You are certain you won’t need the funds If you have stable income, a comfortable emergency fund, and no near-term large expenses, locking money into the loan is fine. The funds reduce principal permanently, which maximises long-term interest savings.
2. You lack the discipline to leave money in offset Some borrowers find that money sitting in an offset account is too tempting to spend. Extra repayments (especially without a redraw facility, or with a lender that makes redraw difficult) enforce savings discipline.
3. Your loan doesn’t have an offset account Basic/no-fee home loans often don’t include offset. If your loan doesn’t have offset, extra repayments are the correct approach.
When an Offset Account Wins
An offset account is the better strategy when:
1. You need liquidity An emergency fund, upcoming major expense (renovation, car, medical), or investment opportunity means you may need access to funds quickly. Offset accounts give you interest savings without locking up money.
2. Your loan is on an investment property This is the most important distinction. See below.
3. You may want to shift the property to investment in future If your owner-occupied home might eventually become a rental property, keeping funds in offset (not paid into the loan) preserves your loan balance — which is the deductible amount. Paying extra off now reduces the deductible loan balance permanently.
The Investment Property Tax Difference (Critical)
For investment property loans, an offset account is almost always preferable to extra repayments. Here’s why:
The contamination problem with redraw:
Suppose you pay $30,000 extra into your investment loan, then redraw that $30,000 for a personal purpose (holiday, personal car, owner-occupied home). The ATO may treat the redrawn amount as a new loan for a personal purpose — making that portion’s interest non-deductible.
With an offset account, the funds never enter the loan. You access them directly from the account for any purpose without affecting the loan balance or deductibility.
Keeping your powder dry: If you plan to buy an owner-occupied home in future (moving from renting to owning), keeping money in offset on your investment loan means you can withdraw it as a deposit for your owner-occupied home — without changing the deductible investment loan balance.
This is complex tax territory — speak with a registered tax agent about your specific situation.
Side-by-Side Interest Saving — They Are Equal
$600,000 investment loan at 6%, $50,000 available:
| Strategy | Interest charged on | Monthly interest | Annual saving |
|---|---|---|---|
| No action | $600,000 | $3,000 | — |
| $50k extra repayment | $550,000 | $2,750 | $3,000 |
| $50k in offset | $550,000 | $2,750 | $3,000 |
The interest saving is $3,000/year in both cases — but the offset gives you full access to the $50,000 at any time.
The Hybrid Approach
Many borrowers use both strategies:
- Variable portion: Keep an offset account — salary, emergency fund, savings all sit here
- Fixed portion: Make the maximum allowed extra repayments ($10,000/year) — disciplined, rate-protected principal reduction
This is a common strategy on split loans (part fixed, part variable).
→ See Split Loan Strategy
Frequently Asked Questions
If the interest saving is the same, why does anyone bother with extra repayments?
Simplicity and discipline. Some borrowers prefer not to pay offset account fees, or prefer to “lock” savings into the loan to avoid spending them. The mathematical outcome is the same — the behavioural and tax outcomes differ.
Should I always choose offset over extra repayments for an investment loan?
In most cases yes — the liquidity and tax flexibility of offset is valuable for investment property. However, if your loan doesn’t offer offset, extra repayments are the right approach. Speak with a tax agent about your specific setup.
What if my offset account earns interest — does that change the comparison?
If your offset account pays interest (rather than just offsetting loan interest), it may create taxable income. Most correctly structured offset accounts do not pay interest — the saving is on the loan side only. Check your product terms.
Related Guides
- What Is a Mortgage Offset Account?
- Extra Repayments — How Much Do They Save?
- Redraw Facility Explained
- Split Loan Strategy
- Mortgage Repayment Hub
This article provides general information about offset accounts and extra repayments in Australia. Investment property tax treatment is complex — speak with a registered tax agent before making decisions based on tax considerations. For advice on loan strategy tailored to your situation, speak with a licensed mortgage broker. Find one through MoneySmart.