If you own your home, refinancing your mortgage to pay out credit cards, personal loans or other debts is one of the most common ways Australian homeowners try to simplify their finances. It can genuinely lower what you pay each month. It can also, without anyone intending it, turn a $15,000 credit card balance into a debt you are still paying off in your mortgage twenty years from now.
How debt consolidation through a mortgage actually works
When you refinance to consolidate debt, you are not taking out a separate loan. You are increasing the size of your home loan and using the extra funds to pay out the nominated debts - typically credit cards, a car loan, a personal loan or a buy-now-pay-later balance. Those accounts are closed or paid to zero, and what you owed on them becomes part of your mortgage.
- One lender, one rate, one repayment for everything
- Mortgage rates are usually lower than credit card or personal loan rates
- Can meaningfully reduce your combined monthly repayment
- The debt is now secured against your home, not unsecured
- Spreading short-term debt over a 25-30 year term can cost more overall
- Refinance costs and possible lenders mortgage insurance may apply
Why the lower repayment can be misleading
A $15,000 credit card balance on a 3-year personal loan and the same $15,000 rolled into a 25-year mortgage will show very different monthly figures - the mortgage version looks far more affordable. But paid down over 25 years, even at a lower interest rate, that $15,000 can end up costing considerably more in total interest than paying it off over 3 years at a higher rate. The repayment is lower because the term is longer, not because the debt got cheaper.
This is the same trap that applies to any debt consolidation decision - see our guide on debt consolidation loans vs. balance transfers for how the same math plays out with shorter-term products.
Who this can genuinely suit
Rolling debt into a mortgage refinance tends to make the most sense when you have meaningful equity in your property, a mortgage rate well below your other debts, and - critically - you plan to keep making extra repayments equivalent to what you were paying on the old debts, rather than dropping to the new minimum. Lenders will also assess your income, expenses and overall borrowing capacity before approving the increased loan amount.
Costs to factor into the decision
| May apply | |
|---|---|
| Discharge fee (current lender) | Fixed fee, varies by lender |
| Application / valuation fees (new lender) | Fixed or percentage-based |
| Lenders mortgage insurance | If new loan exceeds ~80% of property value |
| Break costs | If leaving a fixed-rate term early |
To see how a higher mortgage balance changes your actual repayment, try loan-o's debt consolidation calculator, then compare that against your current combined repayments.
The alternative: a standalone debt consolidation loan
A dedicated debt consolidation loan keeps your existing mortgage untouched and puts the other debts on their own shorter, fixed term - typically 3-7 years. It will usually carry a higher rate than a mortgage refinance, but the shorter term can mean less total interest than stretching the same debt across a home loan. Which option actually costs less depends on your rate difference, your equity position and how quickly you would realistically pay down the rolled-in amount.
The takeaway
Refinancing your mortgage to consolidate debt is not automatically the cheaper option just because the monthly repayment is lower - it depends entirely on whether you pay the rolled-in debt down faster than the mortgage minimum. Before deciding, it is worth comparing the full cost of a mortgage refinance against a standalone consolidation loan, with your actual numbers rather than the headline repayment.
Finance is subject to lender approval, lending criteria, terms, conditions, fees and charges. The information in this article is general and does not take into account your personal or business needs.
Last reviewed: 8 September 2026. This article was prepared using information available from the Australian Securities and Investments Commission and Moneysmart. This content provides general information only. It should not be treated as personal financial, tax, legal or credit advice.
Frequently asked questions.
Got a question about your own situation? Ask a specialist →
Often, yes - if you have enough equity and the lender approves the increased loan amount. The lender pays out the nominated debts as part of the refinance, and your mortgage balance increases by that amount. Eligibility depends on your equity, income, credit history and the lender's criteria.
It can lower your combined monthly repayment, because the debt is now spread across a mortgage term of up to 25-30 years instead of a 3-5 year personal loan or a credit card. That is also the risk: a lower monthly figure paid over a much longer term can mean paying significantly more interest in total, even at a lower rate.
Rolling the debt in and making only the new minimum mortgage repayment, without also making extra repayments to pay that portion off faster. Left on a 25-year term, a relatively small credit card balance can end up costing several times its original amount in interest.
Refinancing can involve discharge fees from your current lender, application or valuation fees with the new lender, and potentially lenders mortgage insurance if the new loan takes you over 80% of the property value. These costs should be weighed against the interest saved.
It depends on your equity, the interest rate difference, and how disciplined you can be about repaying the rolled-in debt faster than the minimum. A standalone debt consolidation loan keeps the debt on a shorter, fixed term - which can cost less overall even at a higher rate. A broker can model both scenarios against your numbers.
Not sure whether to refinance or consolidate separately? Ask loan-o.
No obligation, no jargon - just a straight answer about your situation.
Ask a finance specialist →