Status: checked against official sources; automated independent review
FREQUENT FLYER GLOSSARY
What is a credit limit increase?
A credit limit increase is a rise in the maximum amount a cardholder may borrow on an existing credit card account, which lifts the ceiling on the balance the card can carry. The limit is fixed when the card is applied for and represents the maximum amount that can be borrowed at any given time. [3]
Facts checked: 18 October 2026
Key takeaways
- A credit limit is the most a cardholder can borrow on the account at any one time, and it is established at the point of application. [3]
- Opening limits are product terms, not one market-wide number: Commonwealth Bank of Australia's Ultimate card has a minimum limit of $6,000, while its interest-free Low Fee card runs from $400 to $1,500. [3]
- A higher limit lowers credit utilisation on an unchanged balance, while the spend amounts attached to a card offer are stated in the offer's own terms. [3]
What does a credit limit control?
A credit limit is a predetermined amount of funds that a lender makes available on a card, described by Commonwealth Bank of Australia as the maximum amount the cardholder can borrow at any given time, fixed when the card is applied for. [3] Because the figure is a ceiling rather than a target, every charge sits under it: a household paying the taxes and fees on several award tickets in one transaction needs that single payment to fit inside the limit, the same as any other large purchase. When the borrowed amount approaches the ceiling there is no further room on that card until the balance is repaid or the limit changes.
The limit is also the figure against which credit utilisation is measured, and it is separate from the balance itself — see credit limit for the surrounding vocabulary. Commonwealth Bank lists "Manage your credit limit" among the card-management topics in its credit card help section, alongside setting a spending cap and locking a card. [3]
How is the opening limit set?
Commonwealth Bank of Australia's card pages list the following limits for its current range, as listed on 18 October 2026. [3]
| Card | Credit limit |
|---|---|
| Interest-free Low Fee | $400 to $1,500 |
| Neo | $1,000, $2,000 or $3,000 |
| Low Rate | Minimum $500 |
| Low Fee | Minimum $500 |
| Smart | Minimum $2,000 |
| Ultimate | Minimum $6,000 |
At the upper end of that range the bank sets minimums of $500 on the Low Rate and Low Fee cards, $2,000 on the Smart card and $6,000 on the Ultimate card; at the lower end the interest-free Low Fee card is capped at $1,500, which the bank lists as a low credit limit, and the Neo card is offered at fixed limits of $1,000, $2,000 or $3,000. [3] A secured product works from the other direction, starting from a deposit: Capital One lists its Platinum Secured card with refundable deposits as low as $49 for a credit limit of at least $200, with the deposit set at $49, $99 or $200 based on creditworthiness. [1] Once the cardholder qualifies, the security deposit is returned and the account becomes unsecured, and all other card terms and features remain the same. [1]
Requirements are not identical between issuers: Chase's credit education material notes that requirements for unsecured cards vary by issuer. [2]
How does a higher limit affect utilisation and offer spending?
Credit utilisation compares the outstanding balance with the limit, usually expressed as a percentage, so at any given balance a larger limit produces a smaller utilisation figure — the direct arithmetic link between an increase and a credit profile. Someone holding a balance of $1,000 against a $2,000 limit is using half of it; the same $1,000 against a $4,000 limit is a quarter.
Limits and offer spending are separate numbers, and the second can be larger than the first. CommBank's Ultimate card carries a minimum credit limit of $6,000, while its acquisition offer requires $9,000 of eligible spend within 90 days from activation and the account to stay open for more than 12 months. [3] The Smart card's offer requires $4,500 of eligible spend within 90 days from activation. [3] Spend thresholds also decide the monthly fee on both cards: Ultimate cardholders pay no monthly fee in a statement period in which they spend at least $4,000 and otherwise pay $35, while Smart cardholders pay nothing in a period with at least $2,000 of spend and otherwise $19. [3] From the first statement issued on or after 1 January 2027 the spend-based waiver is removed on both cards and the full monthly fee applies. [3] A cardholder planning a large payment should therefore check both the limit and the offer's eligible-spend rules, since refunds and cash advances do not count as eligible spend. [3]
Exceptions and limits
- Product floors and caps. The limit range belongs to the product: $400–$1,500 on the interest-free Low Fee card, fixed limits on Neo, and minimums from $500 to $6,000 across Low Rate, Low Fee, Smart and Ultimate. [3] These figures describe Commonwealth Bank of Australia cards in Australian dollars and are not a schedule for other issuers.
- Secured accounts. Where a limit begins from a deposit, the deposit is returned once the cardholder qualifies and the account becomes unsecured, with all other card terms and features unchanged. [1]
- The same card can open on different terms. Capital One sets the Platinum Secured deposit at $49, $99 or $200 based on creditworthiness, and warns that cards offered while checking eligibility may carry different terms, including introductory rates and bonuses, from those elsewhere on its website. [1]
- Pricing is set per account. Since 10 December 2024, rates offered on approval of CommBank's Low Rate card have ranged from 10.99% p.a. to 15.99% p.a., and the personalised rate within that range depends on factors including the individual credit risk score. [3]
- Not a substitute for repayment. A larger limit does not reduce what is owed; it changes only the amount that may be borrowed, and CommBank's interest-free Low Fee card, for example, carries monthly minimum repayments of $40 or less, excluding overdue or overlimit amounts. [3]
Frequently asked questions
Does a credit limit increase change the spend needed for a sign-up bonus?
The spend requirement sits in the offer's own terms rather than in the limit. CommBank's Ultimate card has a $6,000 minimum credit limit, but its acquisition offer asks for $9,000 of eligible spend within 90 days of activation. [3]
How does a higher credit limit affect credit utilisation?
Utilisation is the balance measured against the limit, so raising the limit lowers the percentage on an unchanged balance, while the limit itself stays the maximum that can be borrowed at any one time. [3]
What happens to the deposit on a secured card?
Capital One sets the Platinum Secured deposit at $49, $99 or $200 based on creditworthiness, against a credit limit of at least $200, and returns the deposit once the cardholder qualifies so that the account becomes unsecured. [1]
Why do two cardholders get different terms on the same card?
Capital One decides the secured deposit by creditworthiness, [1] and CommBank says the rate it offers within its published range depends on factors including an individual credit risk score. [3] Individual accounts are assessed on their own facts, so outcomes differ between cardholders.
Sources
Sources checked on 18 October 2026. It covers Capital One's card line-up and Commonwealth Bank of Australia's Australian credit cards; other issuers and markets, including American Express, Citi and HSBC, are not covered here.
- Capital One credit cards, checked 18 October 2026
- Chase credit cards education and resources, checked 18 October 2026
- Commonwealth Bank of Australia credit cards, checked 18 October 2026