Top tips to consolidate debt into your home loan

Rolling multiple debts into your mortgage can reduce your monthly repayments and simplify what you owe.

The appeal is obvious. Instead of juggling credit card minimums, car loan instalments, and personal loan repayments, you consolidate everything into one repayment at a lower interest rate. For many households in the south-eastern suburbs, that means freeing up hundreds of dollars a month. The catch is that consolidating debt only makes sense if you understand the true cost and commit to clearing the debt faster than the original loan term.

Why consolidating debt into your mortgage can improve cashflow

You replace high-interest debt with a lower-rate home loan, which reduces your monthly outgoings.

Consider a borrower in Mentone carrying $25,000 in credit card debt at 20% and a $15,000 car loan at 8%. The combined monthly repayment sits around $1,400. By refinancing and consolidating that $40,000 into their mortgage at current variable rates, the monthly cost of servicing that debt might drop to around $250. The immediate cashflow benefit is real, particularly for households managing living costs across the Bayside area.

The trade-off is that you extend the repayment term from a few years to 25 or 30 years unless you actively pay down the consolidated amount. That $40,000 in short-term debt becomes part of a long-term loan, and if you only make minimum repayments, you end up paying more interest over time even though the rate is lower.

What lenders look at when you apply to consolidate debt

Lenders assess whether your property has enough equity and whether your income supports the new loan amount.

You need at least 20% equity in your property to avoid lenders mortgage insurance, though some lenders will consider applications with less. If your home is worth $900,000 and you owe $600,000, you have $300,000 in equity. A lender will typically let you borrow up to 80% of the property value, which in this case is $720,000. That leaves $120,000 available to consolidate debt and cover any refinancing costs.

Lenders also review your current debt commitments. If you are consolidating $40,000 in personal debts, they want to see that your income can comfortably service the new loan amount without pushing your debt-to-income ratio too high. In our experience, applicants who are already close to their borrowing limit often find lenders hesitant unless there is a clear reduction in overall monthly commitments.

How to structure the consolidation so you don't extend the original debt term

The most effective approach is to quarantine the consolidated amount and treat it separately from your core mortgage.

Some lenders allow you to split your loan so that the portion covering your property sits on one sub-account and the consolidated debt sits on another. You continue making standard repayments on the mortgage portion, but you increase repayments on the debt portion to match or exceed what you were paying before consolidation. If you were paying $1,400 a month across credit cards and car loans, you direct that same amount toward the debt sub-account even though the minimum repayment has dropped.

This keeps you on track to clear the debt in the original timeframe while still benefiting from the lower interest rate. Without this discipline, the debt lingers for decades and the total interest cost balloons. A loan health check can help identify whether your current structure supports this kind of repayment strategy or whether refinancing to a lender with offset or redraw features makes more sense.

When consolidating debt makes sense and when it doesn't

Consolidation works when you have steady income, sufficient equity, and a plan to pay down the debt faster than the loan term.

It does not work if you are consolidating debt to maintain spending habits that created the debt in the first place. If credit cards get run up again after consolidation, you end up with the same problem plus a larger mortgage. We regularly see this pattern, and it is why lenders ask for evidence that you have closed or reduced limits on consolidated accounts.

Consolidation also makes less sense if you are close to paying off the original debts. If you have six months left on a car loan, rolling it into a 30-year mortgage just to access a lower rate adds unnecessary complexity. The decision hinges on whether the monthly cashflow relief justifies the longer repayment term and whether you are committed to clearing the debt ahead of schedule.

Refinancing costs and how they affect the overall saving

You need to account for discharge fees from your current lender, application fees, valuation costs, and potential settlement fees.

These costs typically range from $1,000 to $3,000 depending on the lender and the complexity of your loan. Some lenders offer to capitalise these costs into the new loan, which means you do not pay them upfront but you do pay interest on them over time. If you are consolidating $40,000 in debt and the refinancing process costs $2,500, you need to ensure the interest saving and cashflow improvement outweigh that upfront expense within a reasonable timeframe.

For households in suburbs like Sandringham or Brighton East, where property values support strong equity positions, the refinancing costs are often absorbed quickly through lower monthly repayments. For those with tighter equity or smaller debt amounts, the costs can eat into the benefit. Running the numbers before you commit is the only way to know whether the refinancing process delivers value.

If you are ready to explore whether consolidating debt into your home loan makes sense for your situation, call one of our team or book an appointment at a time that works for you.

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