Avoid These 5 Pre-approval Mistakes That Cost You Later

Pre-approval tells you what you can afford to borrow before you start looking at property.

It's not a formal offer from a lender, but it gives you a written indication of your borrowing capacity based on income, expenses, and deposit. Most pre-approvals are valid for three to six months depending on the lender, and they rely on the information you provide being accurate and complete from the start.

Submitting Without Checking Your Credit File First

Your credit file shows every loan application, every enquiry, and every late payment from the past five years or more. Lenders see this file before they see you. If there's an unpaid default, a forgotten phone bill in collections, or a string of recent credit applications, those issues will surface during assessment and can delay or decline your application.

In our experience, professionals often assume their credit file is clean because they've never missed a mortgage payment or defaulted on a loan. But credit files can include utility accounts, telco bills, and buy-now-pay-later services. A $200 overdue account from a provider you forgot about can be enough to pause an application.

Order a copy of your credit file from at least one of the major reporting bodies before you lodge anything. If you spot an error, dispute it immediately. If there's a genuine issue, address it and be prepared to explain it upfront rather than have it emerge mid-assessment.

Rounding Down Your Living Expenses

Lenders calculate serviceability using either your actual declared expenses or a benchmark figure based on household size and income, whichever is higher. If you underestimate what you spend, the lender's benchmark will override your figures anyway. If you overestimate, you reduce your borrowing capacity unnecessarily. The figure that matters is what you genuinely spend each month on groceries, transport, childcare, insurance, utilities, and discretionary costs.

Consider a buyer who declares $2,000 a month in living costs when their actual spending tracked over the past three months averages $3,800. The lender's benchmark for their household size and income comes in at $3,600. The application is based on $3,600, not $2,000. The buyer's estimated borrowing capacity drops by roughly $80,000 compared to what they expected, and they've already made offers on properties above what they can now borrow.

Go through your transaction history for the past 90 days before you lodge. Include subscriptions, insurance, school fees, and anything that recurs. Lenders will verify this during full assessment, and any material discrepancy between what you declare at pre-approval and what shows up in your statements at formal application will restart the process.

Changing Jobs Between Pre-approval and Purchase

Pre-approval is conditional on your circumstances staying the same. Employment is one of the main pillars of that assessment. If you move from permanent employment to a contract role, change industries, or take a position with a different income structure, your pre-approval may no longer be valid even if your salary stays the same or increases.

Lenders assess different employment types differently. A permanent role with a base salary is straightforward. A contract role, even at a higher day rate, may require you to show 12 months of continuous contracting income before the lender will include it in serviceability. Commission, bonuses, and overtime usually need to be evidenced over one to two years before they're added to your assessed income.

If you're considering a role change, speak to your broker before you accept the offer. In some cases, it's worth timing the change to happen after settlement rather than before. In others, the new role might still be acceptable to the lender, but you'll need to provide additional documentation or wait for probation to end.

Applying for Pre-approval With Only One Lender in Mind

Pre-approval from one lender doesn't mean that lender will give you the most suitable product or the most favorable terms when you move to formal application. It means that lender has assessed your position and is willing to lend to you subject to valuation and final checks. You're not locked in, and you shouldn't assume that the first lender to say yes is the one you'll settle with.

Different lenders assess income, expenses, and deposit differently. One lender might include your full bonus, another might include only a portion of it. One might allow you to borrow with a 10 percent deposit and pay for lenders mortgage insurance, another might cap your borrowing at 80 percent of the property value unless you meet additional criteria. If you've only approached one lender, you won't know whether another structure would have worked in your favor.

Working with a broker gives you access to multiple home loan options across a panel of lenders without submitting multiple applications yourself. Pre-approval can be structured around the lender whose assessment method aligns with your income type, deposit size, and property plans, rather than the one whose brand you recognize.

Waiting Until You've Found a Property to Start the Process

Pre-approval takes anywhere from two days to two weeks depending on how quickly you provide documentation and how complex your financial position is. If you wait until you've found a property to start the process, you're either making an offer without knowing what you can borrow, or you're asking the vendor to wait while you organize finance. Neither position strengthens your negotiation.

In a scenario like this, a buyer finds a property they want to purchase, makes an offer subject to finance, and lodges a pre-approval application the same day. The lender requests payslips, tax returns, bank statements, and proof of deposit. The buyer is missing one document and has to wait for their accountant to provide it. Five days pass. The lender comes back with a request for clarification on a large deposit that appeared in the buyer's account three months earlier. Another three days. By the time pre-approval is issued, the vendor has accepted another offer from a buyer who already had finance sorted.

Start the pre-approval process before you attend auctions or make private offers. That way, you know what you can afford, you can move quickly when the right property appears, and you're not scrambling to produce documents while the vendor considers other buyers. If your circumstances are more complex, such as self-employment, multiple income sources, or a deposit that includes gifted funds, allow extra time for the lender to work through your assessment. You can read more about how lenders assess different scenarios in our guide to borrowing capacity.

Once you have pre-approval in place, keep your financial position stable. Don't take on new debt, don't close offset accounts, and don't make large unexplained deposits or withdrawals. Lenders will review your circumstances again at formal application, and any change between pre-approval and settlement can trigger a reassessment or, in some cases, a withdrawal of the offer.

If you're refinancing rather than purchasing, the same principles apply. A loan health check before you lodge a refinancing application will identify any issues that could delay approval or limit your options.

Call one of our team or book an appointment at a time that works for you using the link below. We'll walk you through what documents you need, how to position your application, and which lenders are most likely to support your circumstances without unnecessary delays.

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