If you’re a first home buyer, one of the biggest questions you’ll have is how much can I actually borrow? Understanding borrowing power is one of the most important steps in your property journey, because what you think you can afford and what a lender will approve can be two very different numbers.
For every first home buyer, borrowing capacity depends on income, expenses, deposit size, debts and lending policy.
This guide will walk you through how lenders assess applications, how much you may be able to borrow, and how to position yourself for approval.
What Does Borrowing Capacity Mean for a First Home Buyer?
Borrowing capacity is the amount a lender is willing to loan you based on your financial situation.
As a first home buyer, lenders assess:
- Your income
- Your living expenses
- Existing debts
- Credit history
- Deposit amount
- Employment stability
They then apply a series of serviceability tests to determine whether you can comfortably repay the loan, not just at today’s rate, but in the likely event that rates will rise at some point during your loan term.
Importantly, the maximum amount you can borrow isn’t always the amount you should borrow. As a first home buyer, it’s about balancing approval limits with lifestyle sustainability.
How Lenders Calculate How Much a First Home Buyer Can Borrow
Every lender has slightly different criteria, but most follow a similar framework.
1. Income Assessment
Lenders consider:
- Salary or wages
- Overtime and bonuses (sometimes shaded)
- Self-employed income (usually averaged over two years)
- Rental income (if applicable)
- Government payments (in some cases)
As a first home buyer, a stable and consistent income strengthens your application.
2. Living Expenses
Lenders now apply detailed expense assessments. You’ll need to declare spending across categories like:
- Groceries
- Utilities
- Transport
- Insurance
- Subscriptions
- Childcare
- Entertainment
Even if your declared expenses are low, lenders use benchmark figures (often based on household size) to ensure realistic affordability.
For a first home buyer, this is often where borrowing power is adjusted downward.
3. Existing Debts
Your borrowing capacity reduces if you have:
- Credit cards (even unused limits count)
- Personal loans
- Car loans
- HECS/HELP debt
- Buy Now Pay Later accounts
- High discretionary spend
- As a first home buyer, reducing or consolidating debt before applying can significantly improve your approval amount.
4. Deposit Size
Your deposit influences both approval and loan structure.
Most lenders require at least:
- 5% deposit (minimum for many lenders)
- 10–20% preferred to avoid Lenders Mortgage Insurance (LMI)
A larger deposit:
- Reduces risk for the lender
- May improve interest rates
- Reduces total loan size
For a first home buyer, government schemes may allow lower deposits without LMI, depending on eligibility.
How Much Can a First Home Buyer Typically Borrow?
While every scenario is different, lenders often use income multiples as a rough guide.
As a broad estimate:
- Borrowing capacity may sit between 5 and 6 times your annual household income
For example:
- Combined income of $150,000 may allow borrowing between $750,000–$900,000 (subject to expenses and debts)
However, this is only a starting point. A first home buyer with high expenses or existing debt may qualify for less.
Why the Bank May Approve Less Than You Expect
Many first home buyers are surprised when pre-approval comes in lower than anticipated.
Common reasons include:
- Underestimated living expenses
- Large credit card limits
- HECS/HELP obligations
- Rate buffers (lenders test repayments at higher interest rates than current market rates)
- Employment probation periods
Lenders apply a ‘stress test’ interest rate, often 3% higher than the actual rate offered, to ensure you can afford repayments if rates rise.
For a first home buyer, this conservative approach protects both you and the lender.
Pre-Approval vs Final Approval
As a first home buyer, you’ll likely seek pre-approval before house hunting.
Pre-approval:
- Estimates how much you can borrow
- Gives confidence when making offers
- Is usually valid for 60–90 days
However, final approval depends on:
- The property valuation
- Updated financial checks
- No changes to your income or debts
Avoid changing jobs, taking on new debt or making large purchases between pre-approval and settlement.
How to Improve Your Borrowing Capacity as a First Home Buyer
If you’re not happy with your borrowing power, there are practical ways to improve it.
Reduce Credit Card Limits
Even unused credit limits reduce borrowing capacity. Lowering limits or closing cards entirely can increase approval amounts.
While not exactly the same as a credit card, facilities like AfterPay and ZipPay also need to be considered. Many first home buyers assume Buy Now Pay Later accounts won’t impact their borrowing capacity because they don’t function like traditional loans, however, lenders still treat them as ongoing financial commitments. Even small repayment arrangements can reduce your assessed borrowing power, particularly if you hold multiple accounts or use them frequently.
When assessing a first home buyer application, lenders review bank statements to identify recurring repayments and spending patterns. Active Buy Now Pay Later accounts may signal higher discretionary spending, which can influence serviceability calculations. If you’re preparing to apply for a home loan, it’s often worth reducing balances or closing unused accounts altogether to strengthen your position and maximise your borrowing capacity.
Pay Down Debts
Clearing personal loans or car loans improves serviceability calculations.
Increase Your Deposit
Saving a larger deposit reduces the loan amount needed and may improve lender confidence.
Review Living Expenses
Track spending for several months before applying. Lenders review bank statements, so consistent financial behaviour strengthens your position.
Consider a Guarantor
Some first home buyers use a family guarantor to increase borrowing capacity or reduce LMI costs. This option carries risk and requires careful consideration.
Government Support for a First Home Buyer
Depending on eligibility, a first home buyer may access:
- First Home Owner Grants
- Stamp duty concessions
- First Home Guarantee schemes
These programs can reduce upfront costs, improve deposit requirements and strengthen approval chances.
Understanding which schemes apply to you can significantly impact how much you can borrow and how much you need to save.
How Much Should You Borrow – Not Just How Much You Can
Just because a lender approves a certain amount doesn’t mean it’s the right number for your lifestyle.
As a first home buyer, consider:
- Future family plans
- Interest rate rises
- Career stability
- Lifestyle preferences
- Emergency savings buffer
- A mortgage should support your life, but not restrict it.
Choosing to borrow below your maximum approval can provide breathing room and financial flexibility.
The Role of Interest Rates
Interest rates directly impact how much a first home buyer can borrow.
Higher rates reduce borrowing capacity because repayments increase under lender serviceability tests.
This means your borrowing power can shift even if your income remains the same.
Monitoring rate movements is essential when planning your property purchase.
Common Mistakes First Home Buyers Make
When assessing borrowing capacity, avoid:
- Assuming online calculators are exact
- Forgetting to include all debts
- Applying with multiple lenders without a strategy
- Taking on new credit before approval
- Focusing only on the maximum number
A clear plan improves approval confidence and reduces stress during the process.
Why Work With a Broker as a First Home Buyer?
Different lenders assess applications differently.
Some may be more favourable toward:
- Certain employment types
- HECS debt holders
- Lower deposits
- Overtime income
A broker has access to and compares multiple lenders to find one aligned with your financial profile.
Rather than accepting a single bank’s calculation, a broker helps position your application strategically to maximise your borrowing potential while ensuring repayments remain sustainable.
Confidence Before You Commit
For any first home buyer, understanding borrowing capacity is the foundation of a confident property purchase.
Knowing how much you can borrow and how much you’ll likely be approved for prevents wasted time, reduces stress and ensures you shop within a realistic price range.
Borrowing power is shaped by income, expenses, deposit size and lending policy. With the right preparation and guidance, you can strengthen your position and approach the market with clarity.
At Lendara, we work closely with first home buyers on the Mornington Peninsula and beyond to assess borrowing capacity accurately, compare lenders strategically and structure loans that align with long-term goals, not just approval limits.
If you’re ready to understand what you can borrow and how to position yourself for approval, the right advice can make all the difference.
