Budgeting guide for first home buyers
From calculating your disposable income to understanding how lenders assess your borrowing capacity, this guide covers every aspect of financial preparation for your home buying journey.
Quick summary: A comprehensive budget assessment gives you realistic expectations, reduces stress, strengthens your negotiating position, and identifies better loan options. Key steps include calculating your net income, mapping all expenses, determining your disposable income, applying the 28/36 rule, understanding how lenders assess you, and budgeting for both upfront and ongoing costs. Use our mortgage repayment calculator and property deposit calculator to model different scenarios.
Setting your financial scope
The first step in your property journey is finding out what you can afford. By taking a deep dive into your financial situation, you gain clarity that enables better decisions at every stage. Understanding your financial capability means you can focus your property search within achievable price ranges and prevent wasted time on properties beyond your means. It reduces the emotional toll of falling in love with properties you cannot finance. It gives you confidence when making offers and negotiating. And it ensures your purchase is affordable long-term, protecting your financial wellbeing.
Whether you are looking to buy in Ryde, Chatswood, or Penrith, your budget determines your options. A consultation with our team helps you understand your borrowing capacity and explore the best pathways to home ownership for your situation.
Understanding your income
The first step in budgeting involves calculating your total net monthly income. Start by adding up all income sources, including your primary salary, self-employed income, and returns from investments. After subtracting taxes and other deductions, you arrive at your net monthly income, which is the starting point for mapping out your financial capability.
Lenders require documentation to verify your income. This typically includes recent payslips, tax returns spanning the last two years, and recent bank statements. Having accurate records readily available streamlines your pre-approval application and demonstrates financial responsibility. For self-employed individuals or those with variable income, lenders typically assess income based on the last two years of tax returns to get an accurate picture of average earning capacity.
Understanding your monthly expenses
The next critical step involves listing all your regular outgoings. This comprehensive list includes your current rent, utility bills, insurance payments, grocery costs, transportation expenses, private health insurance, childcare costs, and any recurring expenses like leisure activities or subscriptions.
Creating a detailed expense list helps identify areas where you might reduce spending or reallocate funds towards your property goal. Many successful first home buyers use budgeting apps or spreadsheets to track spending patterns over several months, revealing where money actually goes. Do not overlook occasional expenses like annual travel, vehicle maintenance, or annual insurance payments. These should be averaged into your monthly calculations for an accurate picture.
Working out your disposable income
Calculating your disposable income involves deducting your existing loan repayments and monthly living expenses from your net income. This reveals how much you have left each month after covering essential costs, which represents your available borrowing capacity.
An important consideration is how credit facilities affect this calculation. For example, if you have a $10,000 credit card limit with no outstanding balance, lenders will still include this as a potential debt and calculate a minimum repayment. This minimum repayment reduces your borrowing capacity even if you are not using the credit. Closing unused credit card accounts or reducing credit limits before applying for a mortgage demonstrates financial discipline and can significantly improve your debt-to-income ratio and borrowing capacity.
Assessing affordability using the 28/36 rule
The 28/36 rule is a widely used financial principle that helps determine what you can comfortably afford. It suggests that your housing costs should not exceed 28% of your gross income, and your total debts (including housing costs) should not exceed 36% of your gross income.
For example, with a $5,000 gross monthly income, you should aim for housing costs of no more than $1,400 per month (28%), keeping your total debt payments below $1,800 per month (36%). While some borrowers in high-cost areas like Sydney may exceed these percentages, the 28/36 rule remains an excellent guideline for maintaining long-term financial health. Use our mortgage repayment calculator to see what your target property price would cost you each month.
How lenders assess your borrowing capacity
Lenders assess your borrowing capacity using multiple factors working together. These include your verified income (from payslips or tax returns), comprehensive expenses (verified through bank statements), existing debts and credit limits, a serviceability buffer (usually 2 to 3% above current interest rates), your credit history and score, the number of dependants in your household, and the type of property you are purchasing.
Understanding your Loan to Value Ratio (LVR) is also important because it affects both your interest rate and whether you need Lenders Mortgage Insurance. Different lenders apply varying assessment methods that can significantly impact your loan eligibility, which is why working with a broker who knows the specific criteria of 35+ lenders makes a real difference.
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Understanding upfront property purchase costs
When purchasing a property, you need to budget for several upfront costs beyond your deposit. Understanding these prevents financial surprises at settlement.
Stamp duty is often the largest upfront cost, though first home buyer concessions in NSW can reduce or eliminate it entirely for properties up to $800,000. Legal and conveyancing fees typically range from $800 to $2,500, covering property transfer and legal documentation. Building and pest inspections cost $300 to $800 and are essential for identifying property issues before you commit, whether you are buying a freestanding house, strata property, or vacant land. Loan application fees vary by lender ($200 to $600). LMI applies if borrowing more than 80% of the property value and can add thousands to your loan. You should also budget for moving costs, initial repairs, and essential furniture.
First home buyer concessions can significantly reduce these upfront costs. The First Home Owner Grant adds $10,000 for new properties. The Home Guarantee Scheme eliminates LMI with a 5% deposit. And the Help to Buy Scheme lets you purchase with just a 2% deposit. Use our property deposit calculator to see how these benefits change your upfront cost picture.
Ongoing property expenses beyond your mortgage
Home ownership involves ongoing expenses beyond your mortgage payment that many first home buyers underestimate. Council rates typically range from $1,500 to $3,000 annually depending on property value and location. Water rates add $800 to $1,200 per year plus usage. For apartments or townhouses, strata fees can range from $1,500 to $10,000+ annually, covering building maintenance and management. Home and contents insurance typically costs $1,000 to $3,000 per year. Budget approximately 1% of property value annually for maintenance and repairs. Utility bills for electricity, gas, internet, and phone vary by usage and location.
As a general rule, budget approximately 1 to 2% of your property's value annually for ongoing expenses beyond your mortgage. Factoring these costs into your affordability assessment ensures you can comfortably sustain home ownership long-term.
Strategies to improve your borrowing capacity
If your initial budget assessment reveals a gap between what you can afford and your property goals, several practical strategies can help.
Paying down existing debts, particularly credit cards and personal loans, is one of the fastest ways to boost your borrowing power. Even closing unused credit card accounts signals financial discipline to lenders. Increasing your income through salary negotiations, additional employment, or side projects also helps, though lenders typically require consistent income over several months. Saving a larger deposit reduces your loan amount and may help you avoid LMI. The First Home Super Saver Scheme lets you save up to $50,000 through superannuation with tax advantages, and understanding genuine savings requirements ensures your deposit meets lender expectations. Use our home equity calculator to understand how different deposit amounts affect your borrowing position.
Government schemes are powerful tools for overcoming deposit and affordability challenges. The Home Guarantee Scheme lets you purchase with 5% deposit and no LMI. The Help to Buy Scheme allows a 2% deposit with government equity. Read about the benefits and risks of low-deposit purchases to make an informed decision.
Sometimes the most practical approach is adjusting your property expectations. Consider starting with a more affordable property, exploring different locations, or looking at different property types. Our guide on how to buy the right property compares your options, including freestanding houses, strata apartments, and land with construction. Whether you buy through private treaty, auction, or off the plan, our property purchase and valuation guide explains how each method works, and understanding bank valuations helps you anticipate how lenders assess property value.
Frequently asked questions
How much deposit do I need to buy my first home?
While 20% is the traditional deposit to avoid LMI, first home buyers have several options. The Help to Buy Scheme requires just 2%. The Home Guarantee Scheme lets you buy with 5% and no LMI. Low deposit loans with LMI allow 5 to 10%. Guarantor loans may allow minimal or no deposit. Our deposit options guide covers every pathway.
How do lenders calculate my borrowing capacity?
Lenders assess your income (verified with payslips or tax returns), expenses (verified through bank statements), existing debts and credit limits, a serviceability buffer (usually 2 to 3% above current rates), credit history, dependants, and the property type. Different lenders use varying criteria, which is why working with a broker who knows 35+ lenders' requirements gives you the best chance of maximising your borrowing power.
Will my HECS/HELP debt affect my borrowing capacity?
Yes. HECS/HELP debt is considered part of your existing liabilities. However, legislation has been introduced that may allow some lenders to exclude HECS/HELP debt from their assessment. This could improve your borrowing capacity by not factoring the debt as a liability. Lenders may still consider the monthly repayments when assessing serviceability. Your broker can advise on which lenders have the most favourable treatment of HECS/HELP debt.
How much of my income should go toward mortgage repayments?
Financial experts typically recommend that mortgage repayments do not exceed 30% of your gross income. However, this varies based on your other expenses, lifestyle, and future plans. In high-cost areas like Sydney, some borrowers allocate up to 40% of income to housing, though this leaves less flexibility for other expenses and savings. Use our mortgage repayment calculator to model what different repayment levels mean for your monthly budget.
Should I include my partner's income in my budget?
If you are purchasing with a partner, combining both incomes can significantly increase your borrowing capacity. However, both parties become legally responsible for the loan. Both credit histories are assessed, and any changes in either person's employment could affect serviceability. Future life changes such as having children might reduce one income. Discuss these considerations openly to ensure both of you are comfortable with the shared financial commitment.
How will my credit score affect my borrowing capacity?
Your credit score plays a key role in loan approval and influences your interest rates, deposit requirements, loan features, and the maximum loan amount available. A higher score generally leads to better terms and faster approval. Before applying, check your credit report for errors and take steps to improve your score if needed. Paying bills on time, reducing credit card limits, and avoiding multiple loan applications all help.
What if my budget assessment shows I cannot afford the property I want?
If there is a gap between your budget and property goals, consider delaying your purchase to save a larger deposit, exploring government assistance programmes, looking at more affordable locations or property types, investigating guarantor loans, or working on reducing debt and increasing income. Starting with a more modest property is often a smart stepping stone that allows you to build equity for a future upgrade.
How much should I budget for ongoing property expenses?
Budget approximately 1 to 2% of your property's value annually for ongoing expenses beyond your mortgage. This covers council rates, water rates, strata fees (if applicable), insurance, and maintenance. These costs vary significantly based on property type, location, and condition, so research specific costs for your target property.
How can I improve my budget position before applying?
Start by paying down existing debts, particularly high-interest ones. Reduce or eliminate unused credit card limits. Save consistently and ensure your spending patterns align with your declared expenses. Stabilise your employment, check and improve your credit score, and research applicable government assistance. The FHSSS can accelerate your deposit with tax advantages. Taking these steps before applying significantly improves your borrowing capacity and loan terms.
Take the next step
A comprehensive budget is the foundation of a confident property purchase. Once you understand your financial position, secure pre-approval to confirm your borrowing capacity, then use our property deposit calculator, home equity calculator, and mortgage repayment calculator to plan with confidence.
Learn more about our team, or explore our service areas across 220+ Sydney suburbs.
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Related resources for first home buyers
Continue building your knowledge with our essential first home buyer tips covering six key areas, our pre-approval to home ownership journey guide for the complete process, our deposit options guide for every pathway to your first deposit, our choosing the right finance guide to compare loan types, and our pathways to home ownership for a complete overview of all available support.
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Please note that the views and opinions expressed in this post are general information only, and this is not financial advice.
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