Pre-Approval vs Conditional vs Unconditional Approval

Key takeaways

• Pre-approval typically lasts three to six months and is not a guarantee.
• Unconditional approval is property-specific — it applies to one address, not to any property you choose.
• A valuation below the contract price is among the most common reasons a pre-approved loan fails at the formal stage.
• Auction purchases are unconditional on the fall of the hammer, so pre-approval alone leaves you exposed to losing your deposit.

What does each stage mean?

The word "approval" in the middle row does a lot of misleading work. Read the conditions attached — they typically include satisfactory valuation, verification of income, and confirmation that your circumstances have not changed.

Why do pre-approvals fall over?

• Valuation shortfall. The lender values the property below the contract price, so the LVR rises and the loan no longer fits policy.
• Changed circumstances. A new job, a probation period, a new car loan or a fresh buy-now-pay-later account can all move serviceability.
• Unverified income. Overtime, bonus and commission income is often assessed more conservatively than the applicant assumed.
• Property type. Small apartments, high-density postcodes, serviced apartments and unusual construction can breach lender policy regardless of your finances.

How should you use pre-approval?

Treat it as a search boundary rather than a guarantee. Practical steps:

• Ask whether it is system-generated or assessor-reviewed. The second is considerably more reliable.
• Change nothing financially between pre-approval and settlement — no new credit, no job change if it can wait.
• For private treaty purchases, negotiate a finance clause so you can exit if formal approval is refused.
• At auction, get as close to unconditional as possible first, including a valuation on the specific property.

Frequently asked questions

Does applying for pre-approval hurt my credit score?

It can. Many pre-approvals involve a credit enquiry, and multiple enquiries in a short window are visible to other lenders and may be read as a sign of stress. Ask whether the lender is performing a hard enquiry before you apply.

How long does pre-approval last?

Usually three to six months. It can often be extended, but the lender will typically want updated payslips and may re-run its assessment against current policy and rates.

Can a lender withdraw unconditional approval?

It is uncommon but possible if something material changes before settlement — loss of employment, undisclosed debts, or a fundamental change to the security property. Approval is granted on the basis that your circumstances remain as represented.

Related reading

• LVR Explained: Why 80% Is the Magic Number
• LMI in 2026: What It Costs by Deposit Size
• Offset Account vs Redraw: The Real Difference

Sources

• Applying for a home loan — ASIC Moneysmart
• Responsible lending obligations, RG 209 — ASIC