Offset Account vs Redraw Facility: Which Is Better for Your Home Loan?

Both an offset account and a redraw facility reduce the interest you pay on your home loan — but they achieve it differently, and the difference matters for taxes, flexibility, and what happens if you need the money back.

Most homeowners and investors use one or both without fully understanding the distinction. Here's a clear comparison.

How each one works

Offset account

An offset account is a transaction or savings account linked to your home loan. The balance in the offset account is subtracted from your outstanding loan balance when calculating daily interest.

Example: $500,000 loan, $80,000 in offset account. Interest calculated on: $500,000 − $80,000 = $420,000

The $80,000 isn't paying down the loan — it's sitting in your account, available to spend, but reducing the interest charged daily. You still owe $500,000.

Redraw facility

A redraw facility allows you to make extra repayments above your minimum — and then "redraw" (withdraw) those extra funds later if you need them.

Example: $500,000 loan. You pay an extra $80,000 above your minimum repayments. Your loan balance is now $420,000. Interest is calculated on $420,000.

The $80,000 has reduced your actual loan balance. If you need it back, you can redraw it — but only up to the extra amount you've already paid in.

Side-by-side comparison

	Offset account	Redraw facility
Interest saving	Same (on equal balances)	Same (on equal balances)
Ownership of funds	Yours — sits outside the loan	In the loan — technically part of loan balance
Access speed	Instant — it's your bank account	Usually instant online, sometimes takes 24–48 hours
Lender control	Lender cannot freeze without notice	Lender can reduce or suspend redraw in hardship
Tax implications for investors	Critical difference — see below	Critical difference — see below
Fees	Usually $10–$15/month or part of package	Usually free
Account type	Separate bank account (has BSB/account number)	Feature within the loan itself

The tax implication: why investors must use offset, not redraw

This is the most important distinction and the one most homeowners-turned-investors get wrong — often at significant cost.

The problem with redraw for investors:

When you make extra repayments into your home loan and then later redraw those funds for investment purposes (buying shares, funding a business, etc.), the ATO takes the position that the redrawn amount is a new borrowing for investment purposes.

However — and this is critical — the interest deductibility follows the current purpose of the loan, not the original purpose. Here's how the trap works:

You buy your home with a $600,000 loan (home purpose — not deductible)
You pay down extra to $450,000 over several years
You then redraw $150,000 to invest in shares
The ATO will trace the $150,000 redraw and allow deductibility on that $150,000 as investment-purpose debt
BUT — you now have mixed-purpose debt, and you need to track the two portions precisely

Worse: if you later move out and turn the home into an investment property, the redrawn portion complicates the loan split. The interest on the original balance may be deductible but the redrawn portion's deductibility depends on what it was used for.

The offset solution:

An offset account keeps the money completely separate from the loan. If you later take out a new loan for investment purposes — or convert your home to an investment — the loan balance and its purpose are clean. Nothing has been redrawn, nothing has been mixed.

Rule of thumb:

Owner-occupied home with no future investment plans: Redraw is fine and cheaper
Investor, or anyone who may ever turn their home into an investment: Use offset exclusively

Use our Mortgage Calculator to compare interest savings from different offset or extra repayment amounts.

Interest savings: are they actually the same?

Yes, the daily interest saving is mathematically identical for equal balances. Whether you have $80,000 in an offset account or $80,000 in redraw, the interest calculated is on $420,000 in both cases.

Where offset accounts can do more:

You can have multiple offset accounts linked to one loan (most lenders allow this)
Your regular salary depositing into the offset saves interest from the day it lands
Bills paid from the offset mean money is working against your loan even between pay cycles

Example of salary timing benefit: $500,000 loan at 6.2%. Monthly salary of $8,000 deposited 1st of month, bills paid across the month leaving $3,000 remaining at month end.

Even though the average balance is only ~$5,500 (not the full $8,000), every day between payday and when money is spent reduces your daily interest. Over a year, having salary flow through the offset rather than a separate account could save an additional $300–$500 depending on your spending timing.

Does a redraw reduce your loan faster?

Technically, yes — extra repayments in redraw actually reduce your loan balance. An offset account doesn't touch your loan balance at all.

However, over the long term with identical amounts, the total interest paid is the same, because the offset reduces the interest charged daily by the same amount that the redraw reduces the principal.

Where redraw wins practically: with redraw, every extra dollar directly reduces your balance and shortens your loan term. You don't need any discipline to "leave it in offset" — once it's in redraw, it's been used to pay down the loan.

Which should you choose?

Choose offset if:

You're an investor or plan to rent out the property one day
You value having the money clearly in your own account (not in the loan)
You have a salary and want it working against your mortgage daily
You want flexibility to spend/invest without ATO complications

Choose redraw if:

You're an owner-occupier with no investment plans
You want to pay down the mortgage aggressively and don't need flexibility
You want to avoid the monthly offset account fee
You're disciplined — redraw provides a psychological barrier to spending

Use both: Many package home loans include both. Put your salary and emergency buffer in the offset (accessible, tax-clean). Make extra repayments beyond your emergency buffer into redraw (forced saving, higher barrier to spending).

Frequently asked questions

Is an offset account better than a redraw?

For investors and anyone who may rent out their home in the future, an offset account is significantly better — it avoids the tax complication of mixed-purpose debt that arises when you redraw funds. For pure owner-occupiers with no investment plans, a redraw facility is functionally equivalent and usually cheaper (no monthly offset fee).

Do offset accounts save more interest than redraw?

No — for equal balances, the daily interest saving is mathematically identical. The offset account advantage is in flexibility (instant access), tax treatment for investors, and the ability to have salary flow through the account saving interest between pay cycles.

Can my bank freeze my redraw facility?

Yes — lenders reserve the right to reduce or suspend redraw facilities, particularly in financial hardship situations or if the property value falls significantly. This happened to some borrowers during the COVID period when banks tightened lending. An offset account balance is your own money and cannot be seized by the lender without due process, though the lender could still foreclose on the property.

What is the tax difference between offset and redraw for investors?

Offset keeps your money outside the loan, keeping loan purpose clean. Redraw — when redrawn for investment purposes — creates mixed-purpose debt that must be carefully tracked. Mixing personal (home loan) and investment-purpose funds can complicate which portion of the interest is deductible. Offset accounts sidestep this entirely because no money ever enters or leaves the loan.

Can I have an offset account on a fixed rate loan?

Most lenders don't offer full offset on fixed rate home loans. Some offer a partial offset (usually capped at $20,000–$30,000) or a linked savings account with a discounted rate. If you fix your loan and want the offset benefit, check with your lender — the structure varies significantly.

This article is for general information only and does not constitute financial or tax advice. The tax treatment of offset accounts and redraw facilities can be complex in specific situations. Consult a registered tax agent before making decisions involving investment property loans.