What is ‘account conduct’ and how can it affect my chances of getting a home loan?

Disclaimer: The below guide is general in nature and do seek individual financial advice to see how this applies to your situation. Our experienced advisers are on hand to help at no cost to you (T’s and C’s apply)

The journey to mortgage approval involves a lot more than just a decent credit score, a solid income, and a strong deposit. When assessing an application, lenders will look incredibly closely at an applicant's day-to-day financial behavior—a concept known in the banking world as account conduct.

Every transaction on a bank, credit card, or personal loan statement tells a story. Here is a plain-English look at what account conduct actually means, the specific red flags banks look for, and the standard practices used to keep bank statements in top shape before applying for a home loan.

What is Account Conduct?

Put simply, account conduct is the factual record of how an individual manages their financial accounts. It covers everyday transactional accounts, savings accounts, credit cards, and any existing loans.

Lenders scrutinize account conduct because it serves as a highly accurate predictor of future behavior. Clean, responsible account management indicates to a bank that a future mortgage will likely be handled with the same care. Conversely, erratic or negative conduct raises immediate red flags regarding financial stability.

The 6 Red Flags Lenders Look For

When an underwriter reviews three to six months of bank statements, they are specifically scanning for the following indicators:

1. Late or Missed Loan Payments

Banks look closely to see if existing commitments—like car loans, personal loans, or "Buy Now, Pay Later" installments—are being paid on time, every time. A history of late or missed payments is viewed as a primary indicator of financial stress.

2. Unarranged Overdrafts

An arranged overdraft is a pre-approved limit set by the bank (e.g., $1,000). Using this facility within the agreed limit is generally acceptable.

An unarranged overdraft occurs when an account goes into the negative without any prior agreement, or exceeds the pre-approved limit. These often trigger "unarranged overdraft fees" on a bank statement. While the fee itself might be only a few dollars, the dollar amount isn't the issue. The bank views the event as an inability to manage cash flow within agreed limits.

3. Dishonored Direct Debits

If a scheduled direct debit (such as a utility bill, gym membership, or insurance premium) bounces due to insufficient funds, lenders take notice. A pattern of reversed charges suggests poor budgeting and increases the perceived risk that a future home loan repayment might also bounce.

4. Going Over Credit Card Limits

If a credit card has a hard limit of $2,000, and the statement shows a balance of $2,200, it signals to a lender that spending has exceeded the agreed-upon boundary. Lenders expect credit facilities to be managed strictly within their parameters.

5. Withdrawing Cash from Credit Cards (Cash Advances)

This is a scenario where a bank provides a service but actively marks an applicant down for using it. Withdrawing cash from a credit card (a cash advance) usually incurs immediate, incredibly high interest rates (often 20% or more).

Lenders generally operate on the assumption that if an applicant is willing to pay such exorbitant fees to access physical cash, they may be experiencing severe financial pressure; otherwise, they would use standard savings or cheaper lending options.

6. Payday-to-Zero Balances

While not a strict rule for every lender, underwriters generally prefer to see account balances creeping upward over time. It is considered less desirable if an applicant's main transactional account consistently drains to exactly $0 the day before their next paycheck arrives, as it indicates a lack of financial buffer.

Does Bad Account Conduct Mean an Automatic Decline?

Not necessarily. The critical factor for lenders is patterns of behavior.

Almost everyone has accidentally incurred an unarranged overdraft fee or missed a utility payment by a single day because of a bank holiday. A singular, isolated incident is rarely a dealbreaker.

However, a pattern—such as incurring unarranged overdraft fees every month, combined with cash advances and reversed direct debits—is a strong indication of systemic account conduct issues.

Different banks also have entirely different risk appetites. One lender might automatically decline an application if they spot a single unarranged overdraft in the last 90 days, while another bank might take a much more lenient, holistic view of the situation.

Does good conduct increase the loan size? No. Having perfect account conduct does not increase the mathematical amount a bank is willing to lend. However, poor account conduct can prevent a loan from being approved at all, regardless of the applicant's income or deposit size.

Standard Practices for Preparing Bank Statements

In the months leading up to a mortgage application, it is standard practice to treat bank accounts as if they are already under the microscope. Common strategies used to prepare accounts include:

  • Aligning Direct Debits: Reviewing all automatic payments and direct debits to ensure they align directly with payday (e.g., scheduling bills to be paid the day after wages clear). This drastically reduces the risk of dishonored payments due to timing mismatches.

  • Maintaining a Cash Buffer: Leaving a small, permanent "float" or buffer in everyday transactional accounts rather than moving every spare dollar into savings. This prevents accidental overdrafts if an unexpected automated bill is processed.

  • Auditing Subscriptions: Canceling unused subscriptions, direct debits, or memberships to clean up the transaction history and increase uncommitted monthly income.

At Home Loan Factory, we review our clients' bank statements long before they ever reach a bank’s underwriting department. We know exactly which lenders are strict on conduct and which are more flexible, ensuring every application is directed to the right place.

Andrew Palliser

Hi, I’m Andy Palliser, your experienced NZ mortgage adviser for first home buying, refinancing, and property investment.

I work with over 20 lenders to cut through the banking jargon and secure the best possible deal for your unique situation. Best of all, my advice and assistance is usually completely free to you.

If you want a hand getting your approval sorted without the stress, let's chat. Get in touch with me here or on 028 8517 4720.

https://www.homeloanfactory.co.nz/andrew-palliser-mortgage-adviser-home-loan-factory
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