Rolling short-term debt into your mortgage can transform your monthly cash flow. It can also quietly cost you more over twenty-five years. Which one it does depends almost entirely on how it is structured — and that is a decision worth making with your eyes open.
It depends on the term, not just the rate. Consolidating credit cards, personal loans or hire purchase into a home loan replaces several high-rate repayments with one at a much lower rate, which almost always improves monthly cash flow. But a debt that had three years left can end up spread across twenty-five, and low interest over a long period can still total more than high interest over a short one. Consolidation works when the consolidated portion is deliberately kept on a shorter term rather than absorbed into the full mortgage, and when the cleared facilities are actually closed. It goes wrong when the repayment simply drops and the cards fill back up.
Debt consolidation is a cash flow tool. Used properly it is a very good one. It is not a debt reduction tool, and the difference matters.
What it genuinely fixes: a punishing monthly total made up of several high-rate repayments; the administrative load of six different due dates; and the compounding damage of revolving credit that never quite gets cleared. Dropping a 20-something percent card rate to a mortgage rate is a real and substantial saving on the interest cost of that balance.
What it does not fix: the reason the debt accumulated. If the underlying pattern is that spending exceeds income, consolidation resets the balances and buys time — and unless something else changes, the balances rebuild while the mortgage stays larger. That is the failure mode, and it is common enough that most lenders will require the facilities to be closed as a condition of approval.
The other thing that changes is the nature of the risk. Unsecured debt is a financial problem. Debt secured against your house is a housing problem. That is not a reason to avoid consolidating — it is a reason to be sure before you do.
The most important structural decision. Split the consolidated amount onto a term matching the original debt rather than the full mortgage term. The repayment is higher than it could be, and you pay far less overall.
Paid-off cards and overdrafts should be closed, not left available. Most lenders require this. It is also what determines whether consolidation works long term.
Debt consolidation is not a purpose lenders readily go above 80 percent LVR for. Knowing your equity position before applying saves a wasted application.
Sometimes the better answer is an avalanche repayment plan on the existing debts, or a shorter personal loan. Consolidation should win on the numbers, not by default.
If you are on a fixed rate, restructuring may trigger a break fee. It is often still worth it, but it needs to be in the calculation up front rather than discovered later.
Lenders are obliged to check that consolidation genuinely suits your circumstances. Expect real questions about your spending. That scrutiny is protective, not obstructive.
Debt consolidation is one of the areas where an adviser is most useful and most easily misused, because the easy version — approve it, take the commission, move on — is available and leaves the client worse off.
So the process here is deliberately slower. We look at your income, your existing debts and their remaining terms, your spending patterns and your equity position before recommending anything. Then we model the honest comparison: what you pay now over the remaining life of each debt, versus what you would pay consolidated, at the term we would actually recommend.
Sometimes that comparison says clearly yes. Sometimes it says you would be better off attacking the highest-rate debt directly for eighteen months. Occasionally it says the real problem is not the structure at all. You will get whichever of those is true.
It reduces your monthly outgoings almost always, and reduces total interest paid only sometimes. Moving a 20 percent credit card to a 6 percent mortgage rate is a large rate saving, but stretching a three-year debt over a 25-year term can still cost more in total. The fix is to keep the consolidated portion on a shorter term rather than letting it default to the full mortgage term.
Generally you need to stay within 80 percent of your property’s value after the consolidation, since debt consolidation is not one of the purposes lenders will readily go above that for. Some non-bank lenders will consider higher, at a higher rate.
Closing revolving facilities and clearing defaults usually helps over time. The application itself creates a credit enquiry, and any missed payments before consolidation stay on your file for their normal period. The larger risk to your credit is running the cards back up afterwards.
The catch is that unsecured debt becomes secured against your home. A credit card default is a serious financial problem. A mortgage default is a housing problem. That change in consequence is the single most important thing to understand before consolidating.
Sometimes, though it narrows your options. Main banks are cautious about recent arrears. Non-bank lenders take a broader view and may still be able to help, usually at a higher rate. See our bad credit options page for more on how that works.
In most cases yes, and lenders frequently require it as a condition of approval. The most common way consolidation fails is that the cards get paid off, stay open, and are back at their limits within two years — leaving the borrower with the old debt plus a bigger mortgage.
Often done at the same time — review the rate and the structure together.
If arrears or defaults are part of the picture, start here.
Model what the consolidated repayment would look like on different terms.
Send through what you owe and to whom. We will show you both scenarios side by side — including the one where you do not consolidate — and you can decide from there.