Pre-approval is a lender telling you, in writing, roughly what it is prepared to lend you before you have found a property. It is the difference between guessing at your budget and knowing it.
It matters more in 2026 than it did two years ago. The cash rate is 4.35% as at 12 August 2026, and every rise has cut what buyers can borrow on the same income. A figure you were quoted in 2024 is not the figure you will get now.
What is mortgage pre-approval?
A lender looks at your income, your debts and your living costs, runs a credit check, and comes back with a maximum loan amount it would consider, subject to conditions. It is sometimes called conditional approval or approval in principle. The three names mean the same thing.
The conditions are the important part. Pre-approval is not a promise. It usually assumes your circumstances stay the same, and it always assumes the property you eventually pick stacks up on valuation.
Pre-approval versus full approval
Pre-approval assesses you. Full approval assesses you and the property.
That distinction is where most surprises come from. You can hold a valid pre-approval and still be declined at full approval if the lender’s valuer comes back below the contract price, because the loan is measured against the valuation, not what you agreed to pay. In a market where values are falling, that gap opens more often than it used to — which is a reason to be careful about how much above a valuation you are prepared to bid, not a reason to skip pre-approval.
Do you actually need it?
You are not legally required to have it. In practice it does three things nothing else does: it tells you your real budget, it tells agents you are a serious buyer, and it removes the worst version of house hunting — falling for a place you cannot fund.
If you are bidding at auction, it stops being optional. An auction contract is unconditional. Without finance sorted, a winning bid is a very expensive way to find out what a bank thinks of you.
Mansour Soltani
Financial Services Expert
“We always recommend to our clients that they get pre-approval before looking at properties; one of the main reasons is that real estate agents won’t take your interest seriously when negotiating if you don’t have pre-approval.”
Mansour Soltani
Director | Soren Financial
Three things pre-approval actually gets you
A real number. Not a calculator estimate. A lender has looked at your payslips and your credit file and told you what it would lend. Every other decision follows from that number.
Standing with agents. Agents work the buyers who can complete. A pre-approved offer is treated differently from an identical offer without one, particularly when a vendor is weighing two similar bids.
Speed. Most of the assessment is already done. When you find the right place, you are supplying a contract rather than starting from scratch, which shortens the time between offer and formal approval.
Mae Chan Di Jones
Real Estate Agent
“Real estate agents tend to concentrate their efforts on the people prepared with pre-approval in principle. Our job is representing our clients and getting them the best result, so we focus on clients with pre-approval.”
Mae Chan, DiJones Real Estate.
How the pre-approval process works
Four steps, and most of the work sits in the first one.
- Get your paperwork together. Applications stall here, not at the lender.
- Pick a lender, or have a broker pick several. Lenders assess the same income differently, and the spread between the most and least generous is wide enough to change what you can buy. A broker is worth using here precisely because they know which lender treats your income shape best.
- Submit and wait. Usually a few business days. Longer if your income is complex.
- Read the conditions. Not just the number. The conditions tell you what could still go wrong.
One caution: every application leaves a mark on your credit file, and a run of them in a short period reads badly. Apply once, to the right lender, rather than shopping around by applying everywhere.
What sets your borrowing capacity
Lenders work out what you can repay if rates were higher than they are — typically around three percentage points above the actual rate. At a 4.35% cash rate that buffer bites hard, and it is why borrowing capacity has fallen faster than prices.
The things that move the number:
- Income, and how reliably you can evidence it. Salaried income is straightforward. Self-employed, contract, bonus and overtime income all get treated differently by different lenders.
- Existing debts. A credit card counts against you at its limit, not its balance. An unused $20,000 card can cost you real borrowing power.
- Living costs. Lenders compare what you declare against a benchmark and use the higher figure.
- Dependants. Each one reduces the assessed surplus.
- Deposit size. Under 20% usually means Lenders Mortgage Insurance, which adds to the loan.
If the number comes back lower than you hoped, our guide on increasing borrowing capacity covers what actually moves it — closing unused credit cards usually does more than anything else on the list.
What you need to supply
- Photo identification
- Recent payslips, or two years of tax returns and notices of assessment if you are self-employed
- Three to six months of bank statements
- Details of every debt: cards, car loans, personal loans, buy-now-pay-later, HECS
- Evidence of your deposit and how you saved it — lenders often want to see genuine savings rather than a recent lump sum
- A gift letter if part of the deposit came from family
Gaps in this list are the single most common reason an application takes three weeks instead of three days.
How long does pre-approval last?
Usually three months, sometimes six. It can normally be extended if nothing has changed, though the lender will want current payslips again.
What quietly invalidates it: changing jobs, taking on a new debt, a rate change that alters what the lender will offer, or the property valuing below what you agreed to pay. Tell your broker or lender before you do any of the first three, not after.
From pre-approval to a real loan
Once you have a signed contract, the lender orders a valuation and reassesses. If the valuation lands at or above the contract price and nothing about you has changed, formal approval usually follows within a week or two.
If the valuation comes in low, you have three options: make up the shortfall in cash, renegotiate the price, or walk if your contract lets you. Know which of those you could actually do before you sign anything.
Ready to start? Compare brokers in Sydney, Melbourne or Brisbane, or read our guide to the best home loans for first home buyers.
FAQs About Mortgage Pre-Approval
Pre-qualification is an informal estimate of how much you can borrow based on your self-reported financial information. Pre-approval is a more formal process where a lender verifies your financial details and credit history to provide conditional approval for a specific loan amount. Pre-qualification is not recorded in your credit history, while pre-approval is.
Applying for pre-approval does appear on your credit report, but it usually has a minimal impact on your credit score. However, applying for pre-approval with multiple lenders in a short period can raise concerns. If they see several applications close together, lenders might assume others have rejected you. It’s best to limit your pre-approval applications to serious enquiries to avoid this.
The mortgage pre-approval process typically takes anywhere from a few days to a few weeks, depending on the lender and the complexity of your financial situation. To speed up the process, ensure you have all the relevant documents before applying.
Yes, having pre-approval can strengthen your offer and show sellers you are a serious buyer. However, once the owner has agreed to your offer, you must still obtain full loan approval to move forward with the purchase.
If your pre-approval expires, you must reapply for a new pre-approval or request an extension. This may involve resubmitting your financial information and undergoing another credit check.
Getting pre-approved with bad credit is possible, but your options may be limited, and you may face higher interest rates. Improving your credit score before applying can increase your chances of approval and better terms.
You must provide proof of identity, proof of income, bank statements, details of assets and liabilities, and your credit report. Your lender may also require a property wish list that gives examples of the types of properties you’re looking at.
No, pre-approval is a conditional offer based on your current financial situation. It does not guarantee you will get the loan. Final approval requires a detailed valuation of the property and further verification of all financial details.
Yes, you can switch lenders after receiving pre-approval, but you’ll need to go through the pre-approval process again with the new lender, which includes submitting your financial documents and undergoing a credit check.
Most lenders do not charge a fee for pre-approval. However, some may charge for the credit check or other processing fees. Lenders may also charge a fee if you need your pre-approval extended. It is best to check with your lender for any potential costs involved.
Yes, but the process may require additional documentation to verify your income stability, such as tax returns, business financial statements, and bank statements.
Yes, you can adjust the loan amount or loan type after pre-approval. However, significant changes like switching lenders may require re-evaluation and affect your application process.