Australian Pre-Approval Calculator

Estimate your Australian mortgage pre-approval amount using the APRA 3% serviceability buffer, HEM household expenditure benchmark, and credit card limit assessment. Includes conditional vs unconditional pre-approval guide, offer strength scoring, and genuine savings pre-check. All figures in AUD.

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Estimated Pre-Approval Amount
A$689,417
Requested A$730,000 exceeds estimated limit by A$40,583
Max Buying Power
A$809,417
LVR
85.9%
Monthly Repayment
A$4,490
LMI Required
Yes ~A$10,950
APRA Stress Rate
9.24%
HEM Benchmark Used
A$3,500/mo

A conditional pre-approval (the most common type) is an indicative assessment — the lender has reviewed your financials but the approval is subject to property valuation, final credit check, and underwriting sign-off. An unconditional pre-approval (full credit approval) involves complete underwriting upfront — it is more time-consuming but significantly stronger when making offers.

Conditional Pre-Approval
Most Common
Process: 1-3 business days
Cost: Usually free
Valid for: 3-6 months
Conditions: Property valuation, credit re-check, employment verification at settlement
Vendor/agent may not treat as firm
Unconditional Pre-Approval
Strongest Signal
Process: 5-15 business days
Cost: Usually free (may require valuation)
Valid for: 3-6 months
Conditions: Property valuation only (full underwriting done)
Treated as near-equivalent to cash at auction
Recommendation: For a strong auction market, pursue unconditional pre-approval if possible — it signals to vendors and real estate agents that finance is not a risk. For private treaty sales with a finance clause, conditional pre-approval is usually sufficient. Ask your lender upfront which type of pre-approval they can offer.

Australian pre-approvals are typically valid for 3 months (some lenders offer 6 months). If your pre-approval expires before you find a property, you will need to refresh or reapply. Refresh costs and requirements vary by lender.

Typical Validity Period
3 months
Some lenders offer 6 months — check your letter
Estimated Expiry
14 August 2026
From your pre-approval date (3 months)
Free Refresh
Yes (usually)
Most major banks refresh for free if conditions are unchanged
Full Reapplication Cost
$150 — $500
If financial position has changed or lender requires full re-underwriting
Required at Refresh
Updated payslips, bank statements
Employment verification and credit re-check typical
Rate Hold
Not guaranteed
Rate may change at refresh — your pre-approval rate is indicative only
Lender TypeInitial ValidityRefresh ProcessRefresh Cost
Major Bank3 monthsUpdated income docs + credit checkFree
Other Bank3-6 monthsUpdated payslips + bank statementsFree
Non-Bank Lender3 monthsFull re-application$150 — $350
Credit Union3-6 monthsUpdated docsFree — $150

How to Use This Pre-Approval Calculator

Enter your gross annual income (and partner's if joint), income type, monthly debt obligations, total credit card limits, number of dependants, target property value, and available deposit. The calculator estimates your pre-approval amount using the APRA 3% serviceability buffer and HEM household expenditure benchmark. Figures in AUD.

What Is Pre-Approval?

Pre-approval (also called conditional approval or approval in principle) is a lender's assessment of your eligibility to borrow a specific amount, based on your financial information — before you find a property. It is conditional: final approval depends on the specific property's valuation, a final credit check, and employment verification at settlement.

Conditional vs Unconditional Pre-Approval

Most Australian borrowers receive conditional pre-approval, which is subject to property valuation and final underwriting. An unconditional pre-approval (also called full credit approval) involves complete underwriting upfront — it is significantly stronger when bidding at auction and is increasingly available from major banks for well-qualified applicants.

Australian Pre-Approval Assessment Formula

Stress Rate = Contract Rate + 3% (APRA minimum buffer)
Effective Expenses = max(Declared Expenses, HEM Benchmark)
Credit Card Monthly = Total Limit × 3% (regardless of balance)

Max Monthly Repayment = Shaded Income / 12 − Effective Expenses
Max Loan = Max Repayment × (annuity factor at stress rate, 30 yr)

LMI Required if LVR > 80%
Genuine Savings Required = Property Price × 5%

Example: PAYG Couple Seeking Pre-Approval in Sydney

James and Sophie — Combined $185,000 Income, Buying in Sydney

Combined income$185,000 (PAYG)
Monthly debts$800 car loan
Credit card limits$20,000 (assessed at $600/mo)
Dependants1 child (HEM increases by ~$500/mo)
HEM benchmark (estimate)~$4,000/month
Available repayment capacity~$10,800/month
APRA stress rate9.24% (6.24% + 3%)
Estimated max loan~$1,100,000
Deposit (20%)$220,000
Buying power~$1,320,000

To strengthen their pre-approval, James and Sophie should close unused credit cards (reducing assessed monthly obligations), ensure their deposit includes at least $55,000 (5% of target price) in genuine savings held for 3+ months, and apply for unconditional pre-approval given the competitive Sydney auction market.

Frequently Asked Questions

Conditional pre-approval from major banks typically takes 1-3 business days if your documentation is complete. Unconditional pre-approval (full credit approval) takes 5-15 business days as it involves complete underwriting. Some lenders offer same-day conditional pre-approval for straightforward PAYG applicants with all documents ready. Prepare 2 recent payslips, 3-6 months bank statements, tax returns (if self-employed), and photo ID.
Most Australian pre-approvals are valid for 3 months. Some lenders offer 6-month validity. If you do not find a suitable property within the validity period, you will need to refresh your pre-approval by providing updated financial documents. Most major banks offer free refreshes if your financial position has not materially changed. The interest rate in your pre-approval is indicative only — the final rate is confirmed at formal approval.
Yes — a pre-approval application involves a credit enquiry, which is recorded on your credit file and stays there for 5 years. Multiple enquiries within 14 days may be treated more leniently for rate shopping under Australian credit reporting rules. Using a mortgage broker reduces impact as brokers can compare multiple lenders with one application. To protect your credit score, avoid applying for credit cards or personal loans in the months before your mortgage application.
APRA requires all regulated Australian lenders to assess your mortgage affordability at your contract rate plus a minimum 3% buffer. If your mortgage rate is 6.24%, the lender must verify you can afford repayments at 9.24%. This buffer accounts for potential future rate increases and provides a safety margin. The 3% buffer was increased from 2.5% in October 2021 and reduces maximum borrowing capacity by roughly 20-25% compared to qualifying at the contract rate alone.
Australian lenders assess 3% of your total credit card limit as a monthly repayment obligation — regardless of whether you carry a balance. A $20,000 credit limit equals $600/month in the lender's calculation. This can reduce your borrowing capacity by $100,000 or more. Closing or reducing unused credit card limits before applying for a mortgage can meaningfully increase your pre-approval amount. The credit card limit reduction must be reflected in your credit file, which typically takes 1-4 weeks.

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