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How Much Can I Borrow? How Lenders Assess Your Home Loan Application

Before you spend weekends inspecting homes or narrowing down suburbs, it helps to understand what lenders may be prepared to offer. Your borrowing capacity shapes the price range you can realistically consider, the deposit you may need and the repayments your household may need to manage.

Lenders review your income, expenses, debts, dependants, credit history, deposit and the way your income is earned. Each lender applies its own policies, which means the same household can receive different estimates. A borrowing review can help you make sense of those differences before you build your property plans around a calculator result.

Securinvest has a Borrowing Power Calculator that can provide an initial estimate before a detailed review.


How Lenders Calculate Your Borrowing Capacity

Borrowing Capacity Explained

Borrowing capacity, also called borrowing power, is an estimate of the amount a lender may be prepared to lend based on your financial position and its credit policy.

Policies vary across lenders. Overtime, commission, rental income and self-employed income may be assessed in different ways. Expense allowances and existing commitments can also change the result. A realistic figure should fit your household budget and account for property purchase costs.

How Lenders Assess Serviceability

Serviceability is the lender’s assessment of your ability to meet the proposed repayments and cover existing commitments and everyday expenses.

Banks generally test repayments using an assessment rate above the loan’s actual interest rate. This creates a buffer for possible rate rises or changes to income and expenses.

How Your Deposit Affects Borrowing Capacity

Deposit Size And Loan-To-Value Ratio

Your deposit determines how much of the purchase price needs to be financed. It also affects the loan-to-value ratio, or LVR, which is the percentage of the property’s value covered by the loan. A higher LVR may lead to lenders mortgage insurance, which protects the lender against certain losses if a borrower defaults. Eligible buyers may be able to use a government scheme to purchase with a smaller deposit without paying lenders mortgage insurance.

Upfront Home-Buying Costs

Your property budget may need to cover:

  • Stamp duty
  • Conveyancing
  • Building and pest inspections
  • Lender and valuation fees
  • Moving costs and insurance

These expenses can reduce the savings available for the deposit or settlement.

Planning For Costs After Settlement

A lender’s estimate shows what may be available under its policy. Your practical budget should allow for repayments, ownership costs and an emergency buffer after settlement.

What Lenders Assess In A Home Loan Application

What Lenders ReviewWhat They May ConsiderWhy It Matters
IncomeSalary, overtime, commission, rental income and business incomeIncome type and history affect the amount accepted.
Living expensesRegular household and family spendingAffects the income available for repayments.
Existing debtsLoans, credit limits, buy now, pay later and HECS or HELPReduces income available for a new loan.
DependantsChildren and other supported household membersChanges the household expense allowance.
Credit historyRepayment history, defaults and recent enquiriesCan affect lender choice, terms and timing.

How Lenders Assess Your Income

For employees, payslips show the income received. Lenders also consider how reliable that income is and whether it is likely to continue. Income may include:

  • Base salary or wages
  • Regular overtime, allowances, bonuses or commissions
  • Casual and contract income
  • Rental income
  • Business income for self-employed applicants
  • Eligible government payments

Employees may need payslips and account statements. Self-employed borrowers may need tax returns and financial statements. Recent employment or irregular income can lead to additional questions.

How Living Expenses Affect Borrowing Power

Groceries, utilities, transport, insurance, childcare, school costs, medical expenses, subscriptions and entertainment all form part of the calculation. Lenders review this spending to estimate the income available for repayments.

Declared expenses are often compared with lender benchmarks. Recent bank and credit card statements can help you provide a realistic figure.

How Debts And Credit Limits Affect Borrowing Capacity

Existing commitments reduce the income available for a new loan. Lenders may consider:

  • Home loans and investment loans
  • Car finance and personal loans
  • Credit card limits
  • Buy now, pay later accounts
  • HECS or HELP repayment obligations

That unused credit card limit can count. Lenders may assess the full approved limit because the amount remains available to use.

How Dependants Affect Borrowing Capacity

Dependants affect the household expense allowance used by lenders. Childcare and school fees may be assessed separately, which can affect first-home buyers and upgraders with young families.

How Credit History Affects A Home Loan Application

A lender may review repayment history, overdue payments, defaults, recent credit applications and the enquiries recorded on your credit file. Checking your credit report early gives you time to identify errors or prepare an explanation.

Why Review Your Borrowing Capacity Before Applying

Set A Realistic Home-Buying Budget

A borrowing estimate helps set a realistic price range. Your budget should include the deposit, purchase costs and funds available after settlement.

A mortgage broker in Melbourne can bring these figures together and explain how lender policies may affect the result.

Resolve Application Issues Early

A strong application begins before anything is submitted to a lender. A pre-application review may uncover:

  • High or unused credit limits
  • Income that needs additional evidence
  • Recent employment or business changes
  • Missing tax returns or financial statements
  • A deposit that does not cover expected purchase costs

Finding these issues early gives you time to prepare documents, clarify the situation or reconsider the application timing.

Match Your Application To A Suitable Lender

Employment type, income structure, property type and loan purpose can influence lender choice. Securinvest reviews your circumstances to identify a suitable lending strategy, loan structure and product. This may help limit unnecessary credit enquiries and reduce the risk of approaching a lender whose policy does not suit your circumstances.

How Borrowing Capacity Relates To Home Loan Pre-Approval

Borrowing capacity is an estimate based on your information and lender policy. Home loan pre-approval is a conditional lender assessment based on an application.

Pre-approval may include conditions relating to the property, valuation, updated documents and your financial position. Final approval depends on the lender completing its assessment and accepting the property.

First home buyer loans in Melbourne can also involve deposit schemes, grants, eligibility rules and purchase costs. Reviewing these details early can help you understand which pathways may apply before signing a contract.

Aerial view of a suburban neighbourhood of detached family homes with tree-lined streets and green lawns


Borrowing Capacity FAQs

Does Checking My Borrowing Capacity Affect My Credit Score?

Using an online calculator generally does not create a credit enquiry. A lender application or pre-approval may involve a credit check.

How Accurate Is A Borrowing Power Calculator?

A calculator provides an estimate. The result may change after a lender reviews its policies and your supporting documents.

How Can I Improve My Borrowing Capacity?

Possible steps include reducing unused credit limits, paying down debts, building a larger deposit or reviewing expenses. The effect depends on your circumstances and lender policy.

Borrowing Capacity Vs Pre-Approval: What Is The Difference?

Borrowing capacity is an estimate. Pre-approval is a conditional lender assessment. Final approval requires a completed assessment and an acceptable property.

How Long Does Home Loan Pre-Approval Last?

The period varies by lender, but it is generally 3 months as a guide. Updated documents may be required when it expires, and financial changes can affect the assessment.

Check Your Borrowing Capacity Before You Apply

A calculator gives you an initial estimate. A broker review helps you understand what sits behind the number, how lender policies may change the result and which steps could strengthen your position.

The Mortgages and Lending team will assess your position, explain the assumptions, compare suitable options and help you prepare the information a lender may need. Approval remains subject to the lender’s assessment and conditions.

Use the Securinvest Borrowing Power Calculator, then Book a Conversation to understand where you stand and what needs to happen next.

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