Broker Codex

Why pre-approval isn't a guarantee: a broker's honest take

By Broker Codex Editorial

Pre-approval is a lender's initial assessment stating they're willing to lend you a specific amount, subject to certain conditions (usually property valuation). It is not a guaranteed loan offer. Full approval only happens after you've found a specific property, the lender has valued it, and all final details have been reviewed. Pre-approval is useful for setting a realistic budget and giving you credibility with sellers, but confusing it with a guaranteed loan can lead to painful situations at auction or settlement.

Every week I have the same conversation. A client calls, excited, saying they've been pre-approved for $700,000. They want to know how quickly they can start making offers.

Then I ask the questions that need asking. What lender issued the pre-approval? How long ago? Have any of their circumstances changed since? Is the property type they're looking at on the lender's acceptable list?

Pre-approval is a useful tool. It is not the money in your account. Treating it as if it is can cost you tens of thousands of dollars.

What is pre-approval, actually?

Pre-approval (also called conditional approval) is a written statement from a lender that they're willing, in principle, to lend you a specific amount for a home loan, subject to certain conditions being met.

The typical process:

  1. You provide the lender with details of your income, expenses, deposit, and existing debts

  2. The lender runs a preliminary assessment against their serviceability calculator

  3. If everything looks acceptable, they issue a written pre-approval

  4. The pre-approval is usually valid for 60 to 90 days

What pre-approval does NOT include:

  • A valuation of a specific property (because you haven't chosen one yet)

  • Final legal review

  • A formal commitment to actually lend

Pre-approval tells you "based on what we've seen, if you find a suitable property, we're prepared to lend you up to X." It doesn't tell you "we will definitely lend you X on the specific property you buy."

What is full approval?

Full approval (also called unconditional approval) is when the lender formally commits to lending you a specific amount, on a specific property, after all conditions have been met.

Full approval happens after you've had an offer accepted. The lender then:

  1. Orders a formal valuation of the property

  2. Reviews all pre-approval conditions and any new information

  3. Confirms the specific loan amount against the specific property

  4. Issues an unconditional loan offer

Full approval means the money is genuinely available (subject to standard settlement processes). Pre-approval doesn't.

Why does the difference actually matter?

Because sometimes pre-approval doesn't convert into full approval. Common reasons:

The property doesn't value up. The lender's valuer estimates the property is worth less than the purchase price. This can reduce the loan amount available or require a larger deposit than you have.

Your circumstances have changed. You've taken on new debt, changed jobs, or your income has dropped since pre-approval was issued.

Interest rates have moved. Rate changes can affect serviceability calculations.

Lender policy has shifted. Lenders occasionally tighten or restrict certain property types, borrower categories, or loan structures.

The property type is restricted. The lender doesn't lend on that specific unit size, high-rise building, mining town postcode, or construction type. Pre-approval doesn't confirm the property is acceptable.

Documentation issues. Something that wasn't fully verified at pre-approval turns out to be different at final assessment.

None of these are common. But any one of them can derail a settlement after you've already signed a contract.

Pre-approval at auction: the specific trap

Auctions are where the pre-approval vs full approval distinction becomes most consequential.

Auction contracts in most Australian states are unconditional. Once the hammer falls, you're legally obligated to buy the property. There's no cooling-off period.

If you win the auction with pre-approval, and the property then doesn't value up, or doesn't meet the lender's acceptable property criteria, you have a serious problem. You've committed to a purchase price you can't finance.

Your options at that point are usually:

  • Find additional cash to cover the valuation shortfall

  • Apply to a different lender in a tight timeframe (which may or may not work)

  • Forfeit your deposit, which is typically 5-10% of the purchase price

For a $700,000 property, forfeiting the deposit means losing $35,000 to $70,000.

The protection is doing extra work before you bid. Confirm with your broker that the specific property is acceptable to your pre-approval lender. Get a pre-auction valuation if possible. Understand the specific risks of the property type you're buying.

For most buyers, buying by private treaty (where you can include a finance clause) is safer than auction. If you're bidding at auction, go in with your eyes open.

How do I move from pre-approval to full approval smoothly?

Once your offer is accepted:

  1. Sign the contract with a finance clause if your state allows and you're buying by private treaty. This gives you a defined period (typically 14 to 21 days) to secure full approval.

  2. Submit the property details to your lender immediately. Your broker handles this. The lender orders a valuation and begins the full approval review.

  3. Provide any additional documents the lender requests. Sometimes new information is needed, particularly if your circumstances have changed since pre-approval.

  4. Wait for the valuation to come back. This usually takes a few days to a week.

  5. Full approval is issued, assuming everything aligns.

The full approval process typically takes 2 to 3 weeks from offer acceptance.

Frequently asked questions

How long does pre-approval last?

Typically 60 to 90 days. If it expires before you find a property, you'll need to reapply, which involves updated documentation and another credit check.

Does pre-approval affect my credit score?

Yes. Applying for pre-approval creates an inquiry on your credit file, which has a small short-term impact on your credit score. Multiple pre-approval applications in a short period compound this effect, which is why working with a broker who can pre-assess your file against multiple lenders (without formal applications) is usually smarter than shopping around directly.

Can I bid at auction without pre-approval?

Technically yes, but it's risky. Pre-approval at least confirms you've been assessed as capable of borrowing roughly the amount you need. Without it, you're bidding on hope.

What happens if my full approval falls through?

Options include increasing your deposit to cover a valuation shortfall, applying to a different lender whose policies better fit the property, renegotiating with the seller, or withdrawing if your finance clause allows. A broker who's handled this situation before will know what moves are realistic in your specific position.