Can I Afford an $800,000 Mortgage? A Comprehensive Guide for Australians | Esteb and Co
general 2026-01-18 • 3 min read

Can I Afford an $800,000 Mortgage? A Comprehensive Guide for Australians

Contemplating an $800,000 mortgage is a significant decision that requires careful consideration of your financial situation. As property prices in Australia continue to fluctuate, understanding your borrowing capacity and the implications of such a commitment is crucial. This guide will walk you through the key factors to consider, practical tips to enhance your borrowing power, and common pitfalls to avoid. Plus, discover how Esteb and Co can assist you in making an informed decision.

Can I Afford an $800,000 Mortgage? A Comprehensive Guide for Australians

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Understanding Borrowing Capacity

Before diving into whether you can afford an $800,000 mortgage, it’s essential to grasp the concept of borrowing capacity. Australian lenders assess this based on your income, expenses, existing debts, and the loan's interest rate. Typically, lenders apply a serviceability buffer—often 3% above the loan’s interest rate—to ensure you can manage repayments even if rates rise. Therefore, your actual borrowing capacity might be lower than anticipated.

Assessing Your Financial Situation

To realistically assess whether you can afford an $800,000 mortgage, begin by evaluating your current financial health:

  • Income: Consider all sources, including salary, bonuses, and any additional earnings.
  • Expenses: Detail your regular outgoings—rent, utilities, groceries, and discretionary spending.
  • Existing Debts: Include credit cards, car loans, and other liabilities.
These factors help determine your Debt-to-Income (DTI) ratio, a critical metric for lenders.

Practical Tips to Boost Your Borrowing Capacity

1. Improve Your Credit Score: A higher credit score can lead to better interest rates and terms. Check your credit report for errors and focus on paying down existing debts. 2. Increase Your Income: Consider taking on additional work or negotiating a raise. Additional income streams can significantly enhance your capacity to afford a larger mortgage. 3. Reduce Debts: Prioritize paying off high-interest debts, which can improve your DTI ratio. 4. Save for a Larger Deposit: A larger deposit not only reduces the amount you need to borrow but may also lower the loan-to-value ratio (LVR), potentially leading to better rates.

Common Mistakes to Avoid

  • Ignoring Additional Costs: Besides monthly repayments, consider stamp duty, legal fees, and ongoing maintenance costs. Failing to account for these can strain your finances.
  • Overestimating Future Income: While optimism is good, basing your mortgage on unguaranteed future income can lead to financial distress.
  • Not Considering Interest Rate Rises: Always factor in potential rate increases over the life of the loan.

How Esteb and Co Can Help

Navigating the complexities of securing a mortgage can be overwhelming. At Esteb and Co, we specialize in understanding your unique financial landscape to match you with the right lender and loan product. Our expert brokers offer tailored advice, ensuring you’re not only prepared for the initial purchase but also for the life of your mortgage. We simplify the process, from application to settlement, ensuring a seamless experience.

Frequently Asked Questions

Q: What income do I need for an $800,000 mortgage?

A: This depends on your expenses and existing debts, but typically, lenders prefer your total debt commitments to be no more than 30-40% of your gross income.

Q: How much deposit is required for an $800,000 mortgage?

A: Generally, a 20% deposit is standard, equating to $160,000. However, some lenders may allow for a smaller deposit with Lenders Mortgage Insurance (LMI).

Q: Can I get an $800,000 mortgage with a bad credit score?

A: It might be challenging, but not impossible. Some lenders specialize in non-conforming loans, although they come with higher interest rates.

Q: How do interest rates affect my mortgage affordability?

A: Higher interest rates increase your monthly repayment amount, thereby reducing overall affordability.

Q: What if I can't afford the repayments later on?

A: If you encounter financial difficulties, contact your lender immediately. They may offer hardship variations or other solutions.

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Ricky Esteb - Licensed Mortgage Broker
Richard (Ricky) Esteb
Licensed Mortgage Broker & Founder
Credit Rep #574071 ACN 681 636 056 83+ Lender Panel

With direct experience helping Australians secure home loans, car finance, and business funding, Ricky founded Esteb and Co to bring transparency and technology to mortgage broking.

✓ Verified & Last Reviewed: 2026-01-18 | Content meets ASIC regulatory requirements