One of the most common borrowing power surprises is the impact of credit card limits. For many borrowers, the credit card limit home loan link isn’t obvious.
Many borrowers assume a credit card only matters if there is a balance owing. In reality, lenders may assess the card limit, not just the balance.
That means a credit card with a high unused limit can reduce your home loan borrowing capacity.
Why credit card limits matter
Do credit cards affect borrowing power? Often, yes.
When a lender assesses your borrowing capacity, they need to consider your potential repayment commitments.
A credit card limit represents available credit. Even if the card is currently paid off, the lender may allow for the possibility that you could draw the card up to its limit after the home loan is approved.
For this reason, the assessed repayment on a credit card can reduce serviceability. In short, credit card limits borrowing power when your potential repayments are factored in.
This can affect:
- first home buyers;
- refinancers;
- investors;
- self-employed borrowers;
- borrowers with tight serviceability;
- borrowers applying near their maximum capacity.
Example
A borrower may have a $20,000 credit card limit with a balance of only $500.
From the borrower’s point of view, that may feel like a minor commitment. From the lender’s point of view, the available limit can still represent a potential debt.
This does not automatically mean the card must be closed, but it should be reviewed before applying.
Should you reduce your credit card limit?
Reducing an unused credit card limit may improve borrowing capacity in some cases; it can be sensible to reduce credit card limit before home loan approval if the higher limit isn’t needed.
This may be worth considering if:
- you do not need the full limit;
- your borrowing power is tight;
- you are applying for a larger home loan;
- you have multiple credit cards;
- you are trying to improve serviceability before applying.
However, you should avoid making changes without considering your overall position. For example, if a credit card is used for business expenses, cash flow management or emergency funds, reducing the limit may not be suitable without a replacement strategy.
Is it better to close a credit card completely?
Sometimes yes, sometimes no.
Closing a card may improve borrowing capacity, but it depends on the borrower’s situation. If you rely on the card for regular expenses, travel, business purchases or cash flow, closing it may create other issues.
The better question is:
What credit limit do you genuinely need?
A mortgage broker can help you understand the likely impact before making changes and offer mortgage broker borrowing capacity advice tailored to your situation.
Credit cards and refinancers
Credit card limits can also affect refinance borrowing power.
Some borrowers assume refinancing will be simple because they already have a home loan. But when refinancing, the new lender still completes a fresh assessment. If your expenses, debts or credit card limits have increased since your original loan, your borrowing capacity may be lower than expected.
This is one reason some borrowers can comfortably afford their existing loan but still face challenges refinancing.
Credit cards and self-employed borrowers
For self-employed borrowers, credit cards can be even more relevant.
Some business owners use personal or business credit cards for expenses, stock, travel or short-term cash flow. Lenders may assess these commitments differently depending on whether the debt is personal, business-related or linked to the applicant.
This should be reviewed carefully before applying.
What to do before applying
Before applying for a home loan, review:
- how many credit cards you have;
- the limit on each card;
- whether the limit is needed;
- whether any cards can be reduced;
- whether balances should be paid down;
- whether business cards are being assessed personally;
- whether buy now pay later accounts are also affecting serviceability.
A borrowing power calculator or borrowing capacity calculator can help you estimate the broader picture and answer the common question “how much can i borrow”, but a detailed review can show whether credit card limits are materially affecting your result.
Final thought
Credit cards are not automatically a problem. But unused limits can reduce borrowing capacity, especially when the application is tight.
Before applying, it is worth checking whether your card limits match what you actually need.
Q&A
Question: Do credit card limits affect home loan borrowing capacity even if I have no balance?
Short answer: Often, yes. Lenders assess your potential repayment commitments, not just what you currently owe. Because you could draw the card up to its limit after your home loan settles, they may factor in an assessed repayment based on the limit. This can reduce your serviceability and therefore your borrowing power. For example, a $20,000 limit with only a $500 balance can still count as a potential debt in the lender’s assessment.
Question: Should I reduce my credit card limit before applying for a home loan?
Short answer: It can help, especially if you don’t need the full limit or your borrowing power is tight. Reducing unused limits may improve serviceability, particularly if you’re applying for a larger loan or hold multiple cards. However, consider your overall needs first-if the card supports business expenses, cash flow management, or emergencies, make sure you have a suitable replacement strategy before reducing the limit.
Question: Is it better to close a credit card completely?
Short answer: Sometimes, but not always. Closing a card can improve borrowing capacity, yet it may create issues if you rely on the card for regular expenses, travel, business purchases, or cash flow. The better approach is to determine the limit you genuinely need. A mortgage broker can help you weigh the trade-offs and provide borrowing capacity advice tailored to your situation.
Question: Do credit card limits matter when refinancing?
Short answer: Yes. Refinancing triggers a fresh assessment by the new lender. If your expenses, debts, or card limits have increased since your original loan, your borrowing capacity may be lower than expected-even if you’re comfortably meeting your current repayments. Reviewing and right-sizing limits can help before you apply to refinance.
Question: What should I review before applying (including if I’m self‑employed)?
Short answer: Go through a quick checklist:
- How many credit cards you have and each card’s limit
- Whether you genuinely need each limit (and if any can be reduced)
- Whether any balances should be paid down
- Whether business or personal cards are being assessed against you personally (especially if you’re self‑employed)
- Whether buy now, pay later accounts could also be affecting serviceability A borrowing power calculator can give a rough estimate, but a detailed review will show if card limits are materially impacting your result.
