When applying for a home loan, many borrowers focus on interest rates and deposit size. While those are important factors, lenders look at a broader picture when assessing whether to approve a mortgage application.
Banks and other lenders need to ensure borrowers can manage their repayments not just today, but over the life of the loan. This means applications are typically assessed across several key areas.
Understanding these factors can help borrowers prepare for the process and avoid surprises along the way.
Income and employment
One of the first things lenders review is income. This helps determine whether repayments are likely to be manageable over time.
For salaried employees, lenders may look at payslips, employment agreements, and tax records. For self-employed applicants or business owners, the process can involve reviewing financial statements or tax returns.
Lenders may also consider how stable income is likely to be. For example, consistent employment history or established business income can provide greater confidence around repayment ability.
Expenses and existing commitments
Alongside income, lenders assess regular expenses and existing debt commitments.
This often includes:
• Living costs
• Credit card balances
• Personal loans
• Car finance
• Other mortgages or lending
Lenders typically review recent bank statements to understand spending patterns and ensure there is enough room in the household budget for the proposed mortgage repayments.
Deposit and equity
The size of the deposit or available equity also plays an important role.
A larger deposit generally reduces the amount that needs to be borrowed and may have an affect on the loan terms available. For people purchasing property, lenders will usually require evidence of where the deposit funds have come from.
For existing homeowners, the amount of equity in the property may affect options for refinancing or additional borrowing.
You can read more about how home loans work and the factors lenders consider on the Consumer Protection website.
Credit history
Lenders also review an applicant’s credit history.
This helps them understand how someone has managed credit in the past. Information such as missed payments, defaults, or other credit issues can influence how a lender views an application.
Maintaining a consistent history of meeting financial commitments can strengthen an application.
Stress testing repayments
In New Zealand, lenders are required to ensure borrowers can afford their loans even if interest rates rise.
To do this, banks typically assess affordability using a higher “test rate” rather than the actual interest rate being offered at the time. This process is sometimes called stress testing.
The aim is to confirm that repayments could still be manageable if borrowing costs increase in the future.
Tools such as the Sorted mortgage calculator can help borrowers explore how different interest rates or repayment amounts may affect their loan repayments over time.
Property considerations
The property itself is also part of the assessment process.
Lenders will usually use recognised valuation data to confirm the property’s value, or may request a registered valuation to be completed. The type, location, and condition of the property can influence lending decisions.
Confirming the property’s likely value helps ensure the property provides suitable security for the loan.
Preparing for the application process
Because lenders review several different factors, preparing documentation in advance can help make the process smoother.
Speaking with a mortgage adviser can also help borrowers understand how lenders approach applications and what information may be required.
Every lender has slightly different policies and criteria, so professional guidance can help identify options that are most suitable for a borrower’s situation.
Disclaimer: Please note that the content provided in this article is intended as an overview and as general information only. While care is taken to ensure accuracy and reliability, the information provided is subject to continuous change and may not reflect current developments or address your situation. Before making any decisions based on the information provided in this article, please use your discretion and seek independent guidance.