If you have ever sat across from a lender and been told your borrowing capacity is lower than you expected, you know how deflating that moment feels. I have spoken with dozens of people who were blindsided by this, and almost every time, the issue came down to a handful of avoidable mistakes made weeks or even months before they applied. The good news is that most of these problems are fixable, and knowing them in advance puts you in a much stronger position. If you want a quick sense of where you stand right now, the team at Stryve Finance, a leading mortgage broker in Sydney, offers a free Borrowing capacity calculator that gives you a clear starting point before you do anything else.
In this article, I want to walk you through the five most common mistakes that quietly chip away at your borrowing capacity, and more importantly, share exactly what you can do to fix them. Whether you are a first home buyer in Sydney or a seasoned property investor, these insights apply to you.
Mistake #1: Carrying Too Much Existing Debt
This one trips up more people than almost anything else. When a lender assesses your borrowing capacity, they look at every financial commitment you currently have, including personal loans, car finance, HECS/HELP debt, and yes, even your credit card limits. Notice I said limits, not balances. Even if your credit card sits at zero, the lender treats the full limit as a potential liability.
I once worked alongside a buyer who had three credit cards with a combined limit of $30,000, all paid off. She assumed she was in great shape. But the lender calculated that she could theoretically draw down all $30,000, which significantly reduced what she could borrow for a home. The fix here is straightforward: close any credit cards or buy-now-pay-later accounts you do not actively use, and look at reducing the limits on the ones you keep. It is a simple step that Stryve Finance consistently recommends to clients before they submit a home loan application.
Mistake #2: Having Too Many Credit Applications
Shopping around for the best deal feels responsible, and usually it is, but applying to multiple lenders in quick succession leaves a trail of enquiries on your credit file. Each hard enquiry signals to future lenders that you have been knocking on many doors, which can raise a red flag about your financial stability.
The smart approach is to do your research before you formally apply. Use comparison tools, speak with a mortgage broker who can assess your situation holistically, and then apply to the lender that is the best fit. Stryve Finance, for instance, works with a broad panel of lenders across Sydney and Australia, which means they can identify the right match for your circumstances without you needing to lodge multiple applications yourself. This protects your credit file and keeps your borrowing capacity intact.
Mistake #3: Unstable or Insufficient Income Documentation
Lenders want confidence. They need to see a reliable income stream before they will commit to lending you several hundred thousand dollars or more. If you are self-employed, working on contract, or have recently changed jobs, proving that income can be more complicated than you expect.
A common scenario I see is someone who has just landed a great new job with a higher salary but only started two months ago. Despite earning more, lenders may treat their income conservatively because of the short employment history. If you are self-employed, lenders typically want two years of tax returns to assess your average income, and they will often use the lower of the two years as their benchmark.
The fix is preparation. Get your documentation in order well before you apply. Speak with an accountant if you are self-employed, and make sure your tax returns are up to date. The brokers at Stryve Finance are well-versed in helping clients with non-traditional income structures find lenders who will view their situation more favourably.
Mistake #4: Large Discretionary Spending and Living Expenses
Since the introduction of responsible lending guidelines and the subsequent scrutiny from regulators, lenders have been taking a much closer look at your actual lifestyle and spending habits. Gone are the days when a generic household expense estimate would fly. Today, lenders often request three to six months of bank statements and go through them line by line.
If those statements reveal regular spending on subscriptions, dining out, overseas holidays, and entertainment, lenders may decide that your genuine living expenses are higher than you declared, and they will use their own higher figure to stress-test your application. This directly reduces how much they are willing to lend.
My advice, and it is something Stryve Finance actively coaches clients on, is to start cleaning up your spending at least three months before you plan to apply. This does not mean living like a monk, but it does mean being mindful. Cancel subscriptions you do not use, reduce discretionary spending, and avoid large one-off purchases. Your bank statements should tell the story of a financially responsible borrower.
Mistake #5: Ignoring Your Credit Score Until It Is Too Late
Your credit score is one of the most powerful numbers in your financial life, yet most people have no idea what theirs is until they are sitting in a lender’s office. By then, there is very little time to address any problems. A low credit score can not only reduce your borrowing capacity but also result in a higher interest rate or an outright decline.
Credit scores can be affected by a range of things: missed payments, defaults, too many enquiries (as mentioned above), or even outdated incorrect information sitting on your file. The important thing to know is that many of these issues can be addressed if you catch them early enough. You are entitled to access your credit report for free through agencies like Equifax, Experian, and illion.
Pull your report now, not next month, not when you are ready to buy. Review it for any errors and dispute anything that looks incorrect. Set up payment reminders so you never miss a due date going forward. Stryve Finance helps many Sydney clients work through credit file issues as part of their pre-approval journey, and in some cases, they can identify lenders who are more flexible around credit history while still offering competitive rates.
Final Thoughts
Borrowing capacity is not fixed. It is a number that you have real power to influence, provided you know what affects it and take action early enough. The five mistakes I have covered here, carrying too much debt, making too many credit applications, having patchy income documentation, overspending in the months before you apply, and neglecting your credit score, are all within your control to fix.
If you are planning to buy property in Sydney or anywhere in Australia, I would strongly encourage you to speak with a specialist before you take any formal steps. Stryve Finance is a trusted mortgage broker based in Sydney with deep expertise in helping borrowers maximise their borrowing capacity and navigate the home loan process with confidence. Their team takes the time to understand your full financial picture, not just a snapshot, and works with you on a strategy that gives your application the best possible chance of success.
Small changes made early can translate into tens of thousands of dollars in additional borrowing capacity. Start by knowing your numbers, fixing what you can, and working with people who genuinely know the Sydney lending landscape.

