What is mortgage pre-approval?
Pre-approval (also called conditional approval or approval in principle) is a formal indication from a bank that they're willing to lend you a certain amount, subject to finding a suitable property. It's not a guarantee, but it gives you a clear budget and makes you a more credible buyer.
Why pre-approval matters
- Know your budget — no wasted time looking at properties you can't afford
- Act fast — in a competitive market, sellers prefer buyers who are pre-approved
- Confidence at auction — bid knowing your lending is sorted (subject to the specific property)
- Identify issues early — better to discover problems before you've found your dream home
What you'll need
Gather these documents before applying:
- ID — passport or driver's licence
- Income evidence — payslips (last 3 months), employment letter, or 2 years of financials if self-employed
- Bank statements — 3 months showing savings history and spending habits
- Deposit evidence — savings, KiwiSaver balance, gift letters if applicable
- Details of existing debts — credit cards, loans, hire purchase agreements
- Assets and liabilities statement
The pre-approval process
- Choose your lender — compare rates on RatePal to shortlist lenders
- Submit your application — online, in-branch, or through a broker
- Credit check — the bank will check your credit history
- Assessment — the bank verifies your income, expenses, and deposit
- Conditional offer — typically issued within 1–5 business days
How long does pre-approval last?
Most NZ banks issue pre-approval valid for 60–90 days. If it expires before you find a property, you can usually renew it (subject to your circumstances not having changed). Understanding the fees and costs involved in getting a mortgage helps you prepare for the next steps).
Common reasons for decline
- Insufficient income relative to the loan amount
- Poor credit history (missed payments, defaults)
- Too much existing debt
- Insufficient deposit
- Unstable employment history
Frequently asked questions
What is mortgage pre-approval and is it worth getting?
Mortgage pre-approval is a formal lender assessment confirming your borrowing power and interest rate offer—valid typically for 60–90 days. It shows sellers you're a serious, financially-vetted buyer, giving you negotiating strength and speeding up settlement. It's highly recommended for all mortgage buyers.
What documents do I need for mortgage pre-approval?
Standard documents include: proof of income (recent payslips, tax returns if self-employed), bank statements (3–6 months), proof of deposit (savings account statement), ID/passport, and details of existing debts (car loans, credit cards). Self-employed applicants need 2 years of tax returns and accountant references.
How long does the mortgage pre-approval process take?
Pre-approval typically takes 3–5 business days for employed applicants with straightforward finances. Self-employed or complex situations may take 1–2 weeks. The lender will assess your income, debts, and living expenses, then issue a formal pre-approval letter with your borrowing limit and rate offer.
Why might my mortgage pre-approval be declined?
Common decline reasons include: insufficient income relative to the loan amount, high existing debts (DTI above lender limits), poor credit history, employment instability, or inability to verify income. If declined, ask the lender for specific reasons and address them before reapplying with a different lender.
Does pre-approval guarantee I'll get a mortgage?
Pre-approval is conditional, not guaranteed. Final approval depends on the property valuation coming in at the expected price and your financial situation remaining unchanged. If the valuation is lower, your borrowing power may be reduced. If your financial situation changes significantly (job loss, new debts), approval may be withdrawn.
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