Home loan pre-approval: what it is, and why serious buyers get it first

House hunting without pre-approval is shopping without knowing your budget. You might guess right — but the buyers who move fastest and negotiate hardest are the ones who already know what a lender will give them.

What pre-approval actually is

Pre-approval (also called conditional approval or approval in principle) is a lender’s assessment of you as a borrower — your income, debts, expenses and deposit — resulting in an indication of how much they’ll lend, before you’ve found a property.

It typically involves a full application and a credit check. What it doesn’t include is the property, because there isn’t one yet. That arrives at the formal approval stage, when the lender values the specific home and confirms it’s acceptable security.

What pre-approval gives you

• A real budget. Online calculators guess; a pre-approval is a lender’s actual answer. The difference can be tens of thousands either way.
• Speed. With pre-approval in place, formal approval after you sign a contract is usually much faster — often just the valuation and final checks.
• Negotiating credibility. Agents treat pre-approved buyers as serious, because they are.
• Auction readiness. In Victoria, auction purchases are unconditional — there’s no finance clause to fall back on. Bidding without pre-approval (and a hard limit) is genuinely risky.

What it doesn’t guarantee

Pre-approval is conditional. Formal approval can still fall over if:

• The valuation comes in below the price you agreed to pay.
• The property type is outside the lender’s policy — some lenders are wary of very small apartments, certain postcodes, or unusual titles.
• Your circumstances change — a new job, a new loan, a larger credit card limit.
• The lender’s policy changes between pre-approval and application.

The practical rules: don’t change jobs or take on new debt mid-purchase without advice, and be careful with unconditional contracts on unusual properties.

How long does it last?

Usually around 90 days, with renewal generally straightforward (sometimes needing refreshed documents). If your search runs long, keep your broker posted so the renewal is ready before you find the one.

Does pre-approval hurt your credit score?

It registers a credit enquiry, like any loan application. One targeted enquiry is normal and minor. What hurts is scattering applications across multiple lenders in a short window — one of the quiet advantages of comparing through a broker before anyone lodges anything.

When to get it

About two to four weeks before you want to start seriously inspecting. Early enough to know your budget; recent enough that it doesn’t expire mid-search.

This article is general information only and doesn’t consider your personal circumstances. Lender criteria apply.