It can be frustrating to approach your bank and be told you can borrow less than you expected. Many borrowers describe this as borrowing power lower than expected and find themselves asking, “why can I borrow less?”
You may feel comfortable with the repayments. You may have a stable income. You may have never missed a payment. Yet the lender’s borrowing capacity result can still come back lower than anticipated.
This does not always mean your plans are over. It often means the lender’s assessment method, policy or assumptions need to be understood, and it does not automatically mean a home loan declined outcome.
Your income is only one part of the assessment
Borrowers often focus on income first, especially when thinking about home loan borrowing capacity.
Income matters, but lenders also assess:
- living expenses;
- dependants;
- existing debts;
- credit card limits;
- personal loans;
- car loans;
- existing home loans;
- rental income;
- credit conduct;
- loan purpose;
- property type;
- loan-to-value ratio.
A strong income can be offset by high commitments or conservative lender policy, particularly in a complex home loan scenario.
Assessment rates can reduce borrowing capacity
Lenders usually test your ability to repay at a higher rate than the actual loan rate. This is often called the lender assessment rate, a buffer used to reflect repayment risk and potential rate increases. It means that even if the actual repayments look manageable, the lender’s assessed repayments may be higher.
This can reduce borrowing capacity, especially when rates have increased or expenses are high.
Your expenses may be assessed differently
You may know exactly what you spend, but lenders may compare your stated expenses with household expenditure benchmarks.
If the benchmark is higher than your declared expenses, the lender may use the higher figure. This can reduce how much you can borrow and impact your home loan borrowing capacity.
Your credit card limit may matter more than the balance
A credit card with a low balance can still affect borrowing power if the limit is high.
The lender may assess the card as though you could use the full limit. This can surprise borrowers who pay their credit cards off every month.
Self-employed income may not be fully accepted
Business owners often experience a gap between real-world income and lender-assessed income.
Some lenders may focus on historical tax returns. Others may take a different view of business add-backs, retained earnings, distributions, BAS or recent performance.
This is why a self-employed borrower may receive very different answers from different lenders.
Rental income may be shaded
If you own investment property, the lender may use only part of the rental income but still assess the associated debt with a buffer.
For investors with multiple properties, this can significantly affect borrowing capacity.
The lender may not be the right fit
A low borrowing result from one lender does not necessarily mean every lender will say the same thing.
Different lenders have different policies and risk appetite. One lender may be conservative with your income type, property type or existing debts, while another may assess the scenario more favourably.
This is where mortgage broker borrowing capacity guidance can be helpful.
What to do next
If your bank says you can borrow less than expected (or you’re thinking “bank says I can borrow less than expected”), avoid submitting multiple applications straight away.
Instead, review:
- what income the lender used;
- what expenses they applied;
- how they assessed credit card limits;
- whether debts can be reduced;
- whether the loan term or structure affects the result;
- whether another lender may be more suitable;
- whether the application should be delayed until your position improves.
A borrowing power calculator or borrowing capacity calculator can help you understand the starting point, but the next step is diagnosing why the result is low.
Final thought
A lower borrowing result is not always a final no. Sometimes it is a sign that the scenario needs better preparation, a different lender or a different structure.
Before giving up, get the assessment reviewed properly to clarify your home loan borrowing capacity.
Q&A
Question: Why can I borrow less than I expected even though I feel comfortable with the repayments?
Short answer: Because lenders look well beyond your income. They assess your living expenses, dependants, existing debts and limits (credit cards, personal/car loans, other home loans), rental income, credit conduct, the loan’s purpose, the property type, and the loan-to-value ratio. They also apply conservative assumptions, like testing repayments at a higher “assessment rate,” comparing your expenses to benchmarks, and sometimes using only part of your rental income. A strong income can be offset by high commitments or conservative policy. A lower result doesn’t automatically mean a decline-it often means the scenario needs a different approach or lender.
Question: What is a lender assessment rate and how does it affect borrowing power?
Short answer: It’s a buffer rate higher than your actual loan rate that lenders use to “stress test” your repayments. Even if today’s repayments look manageable, the bank calculates them at this higher rate to allow for potential rate rises and risk. That makes the assessed repayments larger, which can reduce how much you can borrow-especially when interest rates or your living expenses are high.
Question: How are my expenses assessed, and why might the bank use a higher figure than I declare?
Short answer: Lenders compare your stated expenses to household expenditure benchmarks. If the benchmark is higher than what you’ve declared, they’ll typically use the higher benchmarked figure in their assessment. This conservative approach can reduce borrowing capacity even if you believe your actual spending is lower.
Question: Why does my credit card limit matter more than my current balance?
Short answer: Lenders often assess credit cards as if you could use the full limit, not just the balance you currently owe. So a card with a high limit can meaningfully reduce your borrowing power, even if you pay it off every month or keep a low balance.
Question: What should I do next if my bank says I can borrow less than expected?
Short answer: Don’t submit multiple applications right away. Instead, review what income the lender used, what expenses they applied (and any benchmarks), how they treated your credit card limits, and whether reducing debts, adjusting the loan term or structure, or waiting to improve your position could help. Consider whether another lender-with different policy or risk appetite-may be a better fit. Use a borrowing power calculator for a starting point, then have the assessment properly reviewed to diagnose why the result is low.

