Mortgage Pre-Approval: What It Is and How to Get It

What is mortgage pre-approval?

Pre-approval (also called conditional approval or approval in principle) is when a bank agrees — subject to certain conditions — that they would lend you up to a specified amount. It's not a guarantee of final lending, but it gives you a clear maximum budget and signals to vendors and agents that you're a serious, finance-ready buyer.

Why get pre-approved before house hunting?

Without pre-approval, you're guessing at your budget. That's risky for several reasons:

• You might fall in love with a property you can't actually finance
• You can't bid at auction confidently without knowing your limit
• Vendors and agents take finance-approved buyers more seriously
• If a good property comes up, you can move quickly without scrambling for finance

In a competitive market, pre-approval is often the difference between getting the property and missing out.

What do banks look at?

The pre-approval assessment covers the same ground as a full application:

• Income — payslips, employment contracts, or 2 years of financials for self-employed applicants
• Expenses and living costs — bank statements from the last 3 months are standard
• Existing debts — credit cards, loans, hire purchase, BNPL accounts
• Deposit — evidence of savings, KiwiSaver balance, or gifted funds
• Credit history — a credit check is run

How long does pre-approval take?

Working with a mortgage adviser, you can typically get pre-approval within 2–5 working days once your documents are in order. Some banks are faster, some slower. Applying directly through a bank branch can take longer due to processing queues.

How long does pre-approval last?

Most pre-approvals are valid for 60–90 days. After that, banks typically require updated documents and a fresh assessment — particularly if your income, expenses, or the interest rate environment has changed.

If your pre-approval expires before you find a property, renewing it is usually straightforward as long as your situation hasn't changed significantly.

What are the conditions on pre-approval?

Pre-approval is always conditional — the most common conditions are:

• The property must be acceptable to the bank (location, type, condition)
• A registered valuation may be required (particularly for high LVR loans)
• Your financial situation must not have materially changed between pre-approval and settlement

Don't take on new debt, change jobs, or make large financial commitments between pre-approval and settlement — it can invalidate your approval.

Pre-approval vs. unconditional approval

Pre-approval covers you as a borrower. Once you've found a specific property and made an offer, the bank will also assess the property itself. If everything checks out, they'll issue unconditional (or formal) approval — the full green light to proceed to settlement.

Should you apply to multiple banks?

Be careful here. Each formal credit application leaves a mark on your credit file. Multiple applications in a short period can look concerning to lenders. A mortgage adviser applies to one lender on your behalf after determining who's the best fit — meaning you don't leave a trail of declined or pending applications across multiple banks.

What to prepare

• Photo ID (passport or driver's licence)
• 3 months of bank statements
• 2–3 recent payslips (or 2 years of IR3 returns if self-employed)
• Evidence of your deposit (savings statements, KiwiSaver balance)
• Details of any existing debts or financial commitments

Your adviser will tell you exactly what each lender needs and help you put together a strong application.