When a Personal Loan Makes Sense, and When It Can Hurt Your Borrowing Power
Key Takeaways
Lenders assess the monthly repayment, not the balance, so even a small personal loan can reduce your borrowing power by tens of thousands of dollars.
A personal loan can be sensible when it consolidates high-interest debt or covers an essential cost with a clear end date; it works against you when taken on for discretionary spending shortly before applying.
Paying off a loan lifts borrowing power but draws down your deposit, which can raise your LVR and trigger LMI, so model both options.
If consolidating, close the cleared card limits, and get advice on timing before you act.
A personal loan can be a practical tool or a quiet drag on your plans, and the difference often comes down to timing. If a home loan is anywhere on your horizon, the decision to take out, keep, consolidate or pay down a personal loan deserves more thought than it usually gets, because lenders treat that repayment as a permanent claim on your income when they assess what you can borrow.
The question most borrowers are really asking is not whether personal loans are good or bad in the abstract. It is more specific: will this reduce how much I can borrow for a home, and should I deal with it before I apply? Those are the right questions, and the answers depend on how the loan is structured, what it was used for, and where you sit in your buying timeline.
This article sets out how personal loans affect your borrowing power, when one is a sensible move, when it works against you, and how to sequence the decision if a mortgage application is coming.
How personal loans affect your home loan borrowing power
The first thing to understand is that a personal loan does not simply add a number to your debt total. It adds a fixed monthly repayment, and that repayment is what lenders fold into their serviceability assessment.
Serviceability is the lender's test of whether you can comfortably afford the home loan repayments. To run that test, lenders take your income, subtract your living expenses and existing debt commitments, and check what is left against the proposed mortgage. A personal loan repayment reduces that surplus directly, which is why even a modest loan balance can lower your borrowing capacity more than people expect.
As an illustration, a personal loan repayment of around $400 a month could reduce your borrowing power by somewhere in the region of $50,000 to $60,000, depending on the lender's assumptions, your income and the loan term. The exact figure varies, but the principle holds: lenders care about the ongoing repayment, not just the balance. This is also why lenders apply a serviceability buffer required under guidance from the Australian Prudential Regulation Authority (APRA), currently an extra 3% on top of the actual rate, so they assess you as though repayments were higher than they are today.
When a personal loan can be a sensible move
Personal loans are not inherently a problem. Used deliberately, they can tidy up your finances and even strengthen your position over time. The key is purpose and structure.
A personal loan tends to make sense when it:
Consolidates high-interest credit card debt into a single, lower-rate repayment with a clear end date.
Funds an essential, one-off cost, such as a car repair you need for work.
Replaces several messy short-term debts with one manageable, predictable repayment.
Carries a fixed term and fixed repayments, giving you certainty rather than open-ended revolving debt.
The common thread is that the loan brings order to your finances rather than expanding your spending. A consolidated, well-conducted personal loan with a clean repayment history can read better to a lender than a tangle of credit cards near their limits, because it shows control and a defined path to being debt-free.
When a personal loan can work against you
The same product can undermine a home loan application when the timing or purpose is wrong. This is where borrowers most often trip themselves up without realising it.
A personal loan is more likely to hurt your borrowing power when it is:
Taken out shortly before pre-approval, adding a fresh repayment and a credit enquiry at the worst moment.
Used for discretionary spending, such as a holiday or non-essential upgrade.
Structured with high repayments that eat heavily into your serviceability surplus.
Added on top of other commitments, such as a new car loan, just before you plan to buy.
Each new repayment narrows the gap between your income and your assessed expenses, which is the very gap a lender uses to decide how much you can borrow. A loan taken on in the months before applying can quietly cost you tens of thousands of dollars in borrowing capacity, and the accompanying credit enquiry adds a small mark at a time you want your file to look settled.
Personal loan versus credit card versus car loan
Not all debts are treated the same way, and understanding the differences helps you decide what to clear first. Lenders look at the type of debt, the repayment, and the risk it signals.
Personal loans
Unsecured personal loans often carry higher interest rates than secured lending, and the fixed repayment is counted in full against your serviceability. A clean repayment record helps your case, but the ongoing commitment still reduces capacity until the loan is closed.
Credit cards
Credit cards are assessed on their limit, not just the balance you carry. A card with a $15,000 limit is generally treated as though that full amount could be drawn and must be serviced, even if you pay it off each month. This is why reducing or closing unused card limits is one of the more effective ways to lift borrowing power.
Car loans
A car loan is usually secured against the vehicle and may carry a lower rate than an unsecured personal loan, but the repayment still counts against serviceability. A car loan that has been fully repaid with a clean history can actually support an application, because it demonstrates you can manage a structured repayment commitment.
Should you pay off a personal loan before applying for a home loan?
This is the decision that matters most for borrowers preparing to buy, and there is no single answer. It depends on the loan size, your savings, and what paying it off does to your deposit.
Clearing a personal loan removes its repayment from your serviceability assessment, which can lift your borrowing power and simplify your application. The trade-off is that using savings to do so reduces your deposit, which can raise your loan-to-value ratio (LVR) and, if your deposit falls below 20%, may trigger Lenders Mortgage Insurance (LMI). The right move is the one that improves your overall position, and that calculation differs from person to person. A borrower with ample savings and a small loan may clear it without a second thought; a borrower whose deposit is tight may be better off keeping the savings and managing the loan another way. This is exactly the kind of trade-off worth modelling before you commit either way.
If you are weighing up whether to keep, pay down or consolidate a personal loan before applying for a mortgage, speaking with a mortgage broker in Albury & Wodonga can help you see the full picture. A broker can model how each option may affect your borrowing power, deposit position and lender choice, so you can make the debt decision that best supports your home loan plans.
Debt consolidation before a mortgage: helpful or risky?
Consolidating debts before applying can genuinely help, but it carries a well-known trap that catches careful people out. The benefit is real; so is the risk.
Rolling several high-interest debts into one lower-rate personal loan can reduce your total repayments, simplify your finances, and present a cleaner picture to a lender. The danger is what happens to the cards you have just cleared. If you consolidate credit card debt and then leave those cards open and begin using them again, you end up with both the consolidation loan repayment and renewed card balances, which is worse than where you started. To make consolidation work in your favour, reduce or close the cleared card limits, since lenders assess the limit rather than the balance, and resist the temptation to treat the freed-up credit as available spending.
Real borrower scenarios
It often helps to see how these trade-offs play out in practice. The following scenarios are illustrative, but they reflect the decisions borrowers face regularly.
First home buyer with a car loan
A first home buyer is saving a deposit while repaying a $20,000 car loan. The repayment is steadily reducing their borrowing power, so the choice is whether to pay the loan down faster, keep saving the deposit, or sell the car. The right answer depends on how close they are to applying and whether the car is essential, and it is worth modelling each path before deciding.
Refinancer weighing up debt consolidation
A homeowner refinancing wants to consolidate credit card debt into the new loan. Done well, this lowers their repayments and tidies their file. The condition for success is closing the cleared cards rather than reusing them, so the benefit is not undone within a few months.
An investor carrying a personal loan
An investor with high income wants to buy another property but is carrying personal loan repayments. Even with healthy earnings, the repayment reduces serviceability, and the debt-to-income ratio (DTI) matters more as their portfolio grows. Clearing or reducing the personal loan first may unlock the capacity needed for the next purchase.
Self-employed borrower using a loan for cash flow
A self-employed borrower has used a personal loan to smooth business cash flow or cover a tax bill. Lenders will want to see the income behind the application clearly, and the loan repayment will count against serviceability. Clean financials, a plan to manage the debt, and a lender experienced with self-employed applicants all help here.
What to check before taking out a personal loan
If you do decide a personal loan is the right call, a few details deserve attention before you sign, particularly if a home loan is on the horizon.
The interest rate and whether the loan is secured or unsecured.
The loan term and the size of the monthly repayment, since that repayment drives the borrowing-power impact.
Fees, including establishment fees, ongoing monthly fees and early repayment fees.
The credit enquiry the application creates, which appears on your file.
The effect on your borrowing capacity if you plan to apply for a mortgage soon.
Reading these together, rather than focusing only on the headline rate, gives you a clear view of the true cost and the knock-on effect for any future home loan.
How a broker can help you structure the timing
Much of the value here is not in the loan itself but in the sequencing, and that is where a broker earns their keep. The order in which you take on, clear or consolidate debt can change your outcome significantly.
A broker can assess your borrowing capacity before you take any action, model whether paying down or keeping a personal loan leaves you better off, and match you to lenders whose policy suits your profile, since lenders treat debts and DTI differently. They can also help you avoid unnecessary credit enquiries and time your application so your file looks settled rather than freshly loaded with new commitments. The aim is to make each decision, on the loan and on the mortgage, with the full picture in view rather than one piece at a time.
Frequently Asked Questions (FAQs)
Does a personal loan affect home loan approval?
Yes, mainly through serviceability. Lenders include your personal loan repayment as an ongoing commitment when they assess how much you can afford to borrow, which reduces your borrowing capacity. The balance matters less than the monthly repayment, so even a small loan with a high repayment can have a noticeable effect on what a lender will offer.
Should I pay off my personal loan before applying for a mortgage?
It often helps because clearing the loan removes its repayment from your serviceability assessment and can lift your borrowing power. The trade-off is that using savings reduces your deposit, which can raise your LVR and potentially trigger LMI. The right choice depends on your loan size, your savings, and your deposit position, so it is worth modelling both options before deciding.
How much does a personal loan reduce borrowing power?
It varies with the repayment size, the lender's assumptions, and your income, but the impact is driven by the monthly repayment rather than the balance. As a rough illustration, a repayment of around $400 a month could reduce borrowing power by somewhere in the region of $50,000 to $60,000. Your own figure may differ, so treat this as a guide rather than a precise number.
Is a car loan treated differently from a personal loan?
To a degree. A car loan is usually secured against the vehicle and may carry a lower rate, while an unsecured personal loan often carries a higher one. Both repayments count against your serviceability, but a fully repaid car loan with a clean history can actually support your application by showing you manage structured repayments well.
Can debt consolidation improve my home loan application?
It can, when done carefully. Consolidating high-interest debts into a single lower-rate loan can reduce your repayments and present a tidier financial picture. The risk is leaving the cleared credit cards open and using them again, which leaves you worse off. To keep the benefit, reduce or close those card limits after consolidating.
Will applying for a personal loan affect my credit score?
Yes. Applying creates a hard inquiry on your credit file, and several inquiries in a short period can raise questions for a lender. The new repayment also becomes part of your assessed commitments. If a home loan application is close, it is generally better to avoid taking on a personal loan in the lead-up unless it clearly improves your position.
Can I get pre-approval if I already have a personal loan?
Yes, having a personal loan does not rule out pre-approval. The lender will factor the repayment into your serviceability, so it reduces the amount you can borrow rather than blocking approval outright. Clean repayment conduct on the loan helps, and a broker can match you to a lender whose policy treats your overall debt position favourably.
The Bottom Line
A personal loan is neither good nor bad in isolation; its effect on your borrowing power comes down to the repayment it creates and the timing of your home loan plans. Used to consolidate high-interest debt or cover an essential cost, with clean conduct and a clear end date, it can be a sensible move. Taken on for discretionary spending shortly before applying, it can quietly cost you significant borrowing capacity.
If a mortgage is on your horizon, the most useful step is to look at the loan and the home loan together, model whether keeping, paying down or consolidating leaves you better off, and get advice on timing before you act. The goal is to make each decision with the full picture in view, so the choices you make on debt today support the borrowing you want to do tomorrow.