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Debt consolidation loans in Australia: when they save money and when they backfire

A worked example of consolidating credit cards and loans into one personal loan, the risks of longer terms, fees, reopened cards and home loan top-ups, and safer alternatives.

Updated · 4 min read

Debt consolidation loans in Australia: when they save money and when they backfire

A debt consolidation loan replaces several debts — usually credit cards, store cards, buy now pay later and other personal loans — with a single personal loan. It saves money only if the new loan's total cost, including fees, is lower than the old debts' over the same period, and you stop using the old accounts. In the illustrative example below, consolidating $18,000 of debts averaging about 19.5% into a 12% loan over four years saves about $2,860 after fees. Stretch the new loan to seven years and total interest ends up higher than before; roll it into a 25-year home loan and interest more than doubles. Free financial counsellors can help you decide whether consolidation, a hardship arrangement or another option suits you.

This guide is part of personal loan mistakes to avoid. Figures are illustrative, not offers.

The starting position

DebtBalanceRate (illustrative)
Credit card A$10,00020.99%
Existing personal loan$5,00016.5%
Credit card B$3,00019.99%
Total$18,000weighted average about 19.5%

Weighted average rate = (10,000 × 20.99 + 5,000 × 16.5 + 3,000 × 19.99) ÷ 18,000 ≈ 19.6%, rounded to 19.5% here for simplicity.

Scenario 1: consolidate over the same period — the saving case

Repaying $18,000 over four years:

Keep existing debtsConsolidation loan at 12%
Monthly repaymentabout $543about $474
Total interest over 4 yearsabout $8,062about $4,752
Fees for new loan–$450
Net saving–about $2,860

The monthly saving of about $69 recovers the $450 of fees in about seven months. Run your own figures in the debt consolidation calculator.

Scenario 2: stretch the term — the backfire case

The lender offers the same 12% loan over seven years, with a repayment of about $318.

Keep existing debts (4 years)Consolidate over 7 years
Monthly repaymentabout $543about $318
Total interestabout $8,062about $8,691
Plus fees–$450

The repayment falls by $225 a month, which feels like a big win, but total cost is about $1,080 higher and you are in debt for three extra years.

Scenario 3: roll it into the home loan

Adding $18,000 to a home loan at an illustrative 6.5% over the remaining 25 years:

  • Repayment about $122 a month for that portion
  • Total interest about $18,460, more than double scenario 1

The interest rate is lower, but the debt now lasts 25 years and is secured on your home. If you take this route, set extra repayments so the $18,000 is cleared within a few years.

The biggest risk: the cards fill up again

The most common consolidation failure is ending up with the new loan and new card balances. To avoid it:

  1. Close the consolidated card accounts, or at least cut the limits.
  2. Ask the new lender to pay the old creditors directly.
  3. Check final statements show zero balances and the accounts are closed.
  4. Build a small emergency buffer so the next unexpected bill does not go on a card.

Closing unused limits can also improve your borrowing capacity; see how much can I borrow.

Other risks to check

RiskWhat to check
FeesEstablishment fee, monthly fee and any early repayment fees on the debts you are paying out
Fixed-rate break costsIf the existing personal loan is fixed, ask for a payout figure
Secured over a car or homeTurning unsecured debt into secured debt puts the asset at risk
Variable rateThe saving shrinks if the rate rises; see fixed vs variable
Debt management firmsSome businesses charge large fees for "consolidation" or "debt agreements"; see below

Be careful with "debt help" businesses

Some businesses advertise debt consolidation, credit repair or "debt solutions" for a fee. Some propose formal options such as a debt agreement under Part IX of the Bankruptcy Act 1966, which is an act of insolvency, stays on your credit report and is recorded on the National Personal Insolvency Index. Before signing with any paid service:

  • talk to a free financial counsellor via the National Debt Helpline,
  • check whether the business holds a credit licence where required,
  • ask for all fees in writing.

Alternatives to a consolidation loan

  • Hardship arrangements with each lender; see hardship notices.
  • A balance transfer card with a low or zero introductory rate — useful only if you can clear the balance before the rate reverts and you do not spend on the card.
  • Paying the highest-rate debt first while paying minimums on the rest.
  • Negotiating a lower rate with your existing card provider.

Frequently asked questions

Will a consolidation loan improve my credit score?

It may, over time, if it reduces your number of accounts and you make every repayment on time. In the short term the application adds an enquiry and a new account.

Can I consolidate buy now pay later debts?

Often yes, though some lenders view regular BNPL use as a risk sign. Close BNPL accounts you consolidate. See buy now pay later rules.

Should I consolidate if I am behind on payments?

Get advice first. Lenders must not provide an unsuitable loan, and a new loan may not be approved or affordable. A hardship arrangement or financial counselling may be better.

Is it better to consolidate into my mortgage?

The rate is usually lower, but the term is much longer and the debt is secured on your home. Unless you make extra repayments, it can cost far more in total.

Sources and where to check

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