Many cardholders forget to update their income details with credit card issuers, which can impact directly on your credit limit, approval opportunities and financial flexibility on a more broad scale. Banks will also periodically revise income information to determine the amount of credit risk that they can comfortably grant to a customer. Claiming to have a rise in earnings could unlock enhanced advantages, raise limits, or chances of approval of new cards. Nevertheless, a revision of the income information has its duties and risks when not properly managed. Being aware of the benefits and the risks is a way of making better decisions and having a healthy relationship with your credit.
Pro: Higher Credit Limits

Issuers can provide a higher credit limit when they observe higher income. This will make purchasing flexibility and reduce your credit utilization ratio and this may have a positive effect on your credit score.
Pro: Increased Approval Ratings of New Cards

Recent information about the income reflects that to the lenders, your repayment ability is better. This may help to qualify to a higher card or card that has a more rewarding program.
Pro: Benefits of Better Cards Access

Increased income levels can also be used to unlock superior cards, superior reward rate, or premium benefits like travel benefits and increased cashback limits.
Pro: Better Financial Profile

Maintaining accurate financial records assists in the lending process in which the lenders will be able to assess you properly. New news may indicate healthy money management and money expansion with time.
Con: Risk of Overspending

An increase in credit limit can promulgate increased spending. Unless budgeted, more available credit may result in increased balances and debt over the long term.
Con: Income Must Be Accurate

There are penalties or account reviews associated with giving out wrong or inflated details of incomes. In case information seems incompatible, issuers can make a request to verify it.
Con: Potential Tough Financial Review

In other situations, the update of the income can provoke a more profound audit of the accounts. Although this is not common, lenders might revaluate risk and change parameters in the event that financial trends are questionable.
Cons: Lender Expectations

Issuers can anticipate better repayments with an increased reported income. Late payments or large balance may have a more significant impact on your credit.
When it Makes Sense to Update Income

It tends to be advantageous when one has a raise in salary, a new job, or a new source of stable income. The update under financial stability is one that will maximize the benefits with no additional risk.
Best Practices to Follow

Report only what can be verified, keep on paying balances in responsible manner and do not spend money in a carefree manner by increasing spending just because more credit is availed.
A Balanced Financial Move

It can be an ingenious move to update the income with credit cards in an honest and judicious way. When spent properly, it will make your credit picture more solid, however, it is the discipline that will make you financially healthy in the long run.