Can I Afford a $300,000 Mortgage in Australia? A Comprehensive Guide | Esteb and Co
general 2026-01-18 • 3 min read

Can I Afford a $300,000 Mortgage in Australia? A Comprehensive Guide

Purchasing a home is a significant milestone, and determining whether you can afford a $300,000 mortgage is a crucial step in the process. This guide will walk you through the various factors that influence mortgage affordability, provide practical advice, and highlight how Esteb and Co can assist you in making informed decisions. Whether you're a first-time buyer or looking to upgrade, understanding your financial capacity is essential.

Can I Afford a $300,000 Mortgage in Australia? A Comprehensive Guide

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Understanding Mortgage Affordability

When considering a $300,000 mortgage, it's vital to assess your financial situation comprehensively. While the loan amount might seem manageable, several factors determine actual affordability, including income, expenses, interest rates, and loan terms.

Income and Loan Repayment Capacity

Lenders typically assess your borrowing capacity by evaluating your income and existing financial commitments. In Australia, a common guideline is that your monthly mortgage payment should not exceed 30-35% of your gross income. For a $300,000 mortgage, this translates to repayments of approximately $1,200 to $1,400 per month, assuming a 30-year term and an interest rate around 5%.

Interest Rates and Loan Terms

Interest rates significantly impact your mortgage repayments. A slight increase in rates can lead to higher monthly payments. It's crucial to shop around and compare rates from different lenders. Opting for a fixed or variable rate can also influence your long-term financial planning. Currently, Australian fixed rates range from 5% to 6%, while variable rates might be slightly lower.

Additional Costs to Consider

Beyond the principal and interest, homeownership comes with additional expenses. These include property taxes, insurance, and maintenance costs. When budgeting, factor in these recurring expenses to ensure they fit within your financial plan.

Practical Tips for Assessing Affordability

Create a Detailed Budget

List all sources of income and detail your monthly expenses. Include discretionary spending to get a clear picture of your financial health. This exercise helps identify areas where you can cut back to make room for mortgage repayments.

Use Online Calculators

Online mortgage calculators are invaluable for estimating repayment amounts. By inputting different interest rates and terms, you can see how changes affect your repayments and decide what suits your budget.

Consider Pre-Approval

Obtaining mortgage pre-approval from a lender gives you a clear indication of how much you can borrow and at what interest rate. This step enhances your credibility with sellers and streamlines the buying process.

Common Mistakes to Avoid

Overlooking Hidden Fees

Many buyers focus solely on the mortgage amount and overlook associated fees like stamp duty, application fees, and legal costs. Estimate these expenses early to avoid surprises.

Ignoring Lifestyle Changes

Consider future lifestyle changes, such as starting a family, which can affect your financial situation. Plan for these changes to ensure long-term affordability.

How Esteb and Co Can Help

At Esteb and Co, we understand that navigating the mortgage landscape can be daunting. Our team of experienced brokers is here to simplify the process. We offer personalized advice, compare lending options from various banks, and help you secure competitive rates. With our guidance, you'll make informed decisions that align with your financial goals.

Frequently Asked Questions

Q: What is the maximum loan amount I can borrow?

A: It depends on your income, expenses, and credit history. Lenders assess these factors to determine your borrowing capacity.

Q: How do fixed and variable interest rates differ?

A: Fixed rates remain constant over a set period, providing repayment certainty. Variable rates fluctuate with market conditions, potentially leading to lower or higher payments.

Q: What is the typical deposit required for a $300,000 mortgage?

A: Generally, a deposit of at least 20% ($60,000) is recommended, although some lenders offer loans with lower deposits, potentially requiring Lenders Mortgage Insurance (LMI).

Q: Can I refinance my mortgage if rates decrease?

A: Yes, refinancing is an option if interest rates drop. It can reduce your repayments or shorten your loan term. However, consider associated costs before proceeding.

Q: How does my credit score affect my mortgage application?

A: A higher credit score usually results in better loan terms and interest rates. It's advisable to check your credit report and rectify any issues before applying.

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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