Loan application mistakes that cost people their approval

Most declined home loan applications were avoidable. The applicant could service the loan and the deposit was real — but a fixable mistake in how the application was prepared or timed turned a yes into a no, or a quick approval into a two-month ordeal. These are the mistakes brokers see over and over, and how to steer around each one.

Applying with multiple lenders at once

When a borrowing estimate looks marginal, some buyers hedge by lodging applications with two or three lenders simultaneously. It backfires. Every application creates a hard enquiry on your credit file, and lenders can see them all. A cluster of recent enquiries reads as either desperation or credit stress, and some lenders' automated scoring will decline on enquiry volume alone — regardless of your income. The compounding problem: each decline makes the next lender more suspicious. The right approach is the opposite — research policy first, pick the single lender most likely to approve your specific profile, and lodge once. This is precisely the matching work [a broker does](/articles/home-loans/how-brokers-help) before anything touches your credit file.

Changing jobs mid-application

Lenders assess the employment you had when you applied. Resign, switch employers, or move from permanent to contract between application and settlement, and you have materially changed the application — and you are obliged to disclose it. At best, the lender reassesses with your new job (probation policies vary; some lenders are comfortable, others are not). At worst, an approval is withdrawn days before settlement. If a job change is on the horizon, the sequencing matters: either settle first, or start the new role and let it stabilise before applying. If you are already on probation, lender selection is critical — see [getting a home loan on probation](/articles/credit-and-approval/home-loan-on-probation).

Not disclosing debts

Leaving a debt off the application — the car loan in a partner's name you actually pay, the buy now, pay later account, the ATO payment plan, the family loan — is the mistake with the worst risk-reward ratio. Lenders cross-check your application against your credit report and 90 days of bank statements, so regular repayments to an undisclosed creditor almost always surface. When they do, the issue is no longer the debt (which may have been manageable) but your credibility: an applicant who hid one thing may have hidden others. Disclose everything and let your broker deal with how it is presented. A declared debt reduces borrowing power; a discovered one can sink the application.

Misjudging the living expenses question

The expenses section trips people in both directions. Understating is the obvious error — declaring $2,000 a month while your statements show $3,500 invites a full expense audit and undermines trust. But blind guessing high is not free either: your declared figure is used if it exceeds the benchmark, so a careless overestimate can cut your borrowing power below what you need. The fix is boring and effective: go through three months of actual statements, categorise your real spending, exclude costs that genuinely end at settlement (such as rent when buying your own home) and one-offs, and declare a number you can defend line by line. Understanding [how lenders verify expenses](/articles/home-loans/how-banks-assess-serviceability) makes this much less mysterious.

Big purchases and new credit before settlement

Approval is not the finish line. Between approval and settlement, lenders can re-check your credit file and, in some cases, reassess — and you must still be the borrower they approved. The classic own goals in this window: financing a car ("we'll need it for the new house"), opening a credit card for furniture, taking a personal loan for the move, or racking up buy now, pay later balances. Any of these changes your serviceability and can trigger a reassessment or withdrawal of approval at the worst possible moment. The rule is simple: from application to settlement, no new debt, no new credit applications, no large unexplained transactions. Furniture can wait three weeks.

Smaller mistakes that still hurt

A few less dramatic errors that cause declines and delays:

• Messy 90-day statements — dishonours, overdrawn accounts, heavy gambling transactions, or payday lender activity in the review window.
• Inconsistent numbers — income or debts that differ between your application, your documents and your statements.
• Deposit appearing from nowhere — large unexplained lump sums without a documented source or gift letter; see [what documents you need](/articles/credit-and-approval/documents-needed-home-loan).
• Going to auction on a calculator estimate — bidding unconditionally without pre-approval, then discovering the real assessment comes in lower.
• Letting pre-approval expire — most last around three months; buying just after yours lapses means reassessment under possibly tighter conditions.

The meta-mistake: DIY lender selection

Underneath most of these errors is one root cause: applying somewhere before knowing whether that lender's policy suits your situation. Serviceability policy, probation rules, expense treatment and credit scoring differ enough between lenders that the same application can be approved at one and declined at another. If your situation has any complexity — variable income, recent job change, existing debts, small deposit — check where you fit before creating enquiries. Start with a realistic estimate from the [borrowing capacity calculator](/calculators/borrowing-capacity), then get policy advice before you lodge.

Talk it through with a broker

The cheapest time to fix an application problem is before the application exists. [Get in touch](/contact) and we will look at your situation, flag anything that would worry a lender, and aim you at the right one the first time.