I had no idea. Thanks!
from https://millionmilesecrets.com/guid...-help-you-get-approved-for-more-credit-cards/:
Most banks set a limit on the TOTAL credit amount which they will extend to you. This limit is based on the bank’s internal risk-taking (or underwriting) policy, your income, length of credit history, and other variables on your credit report.
You may reach this total limit with 2, 3, or 4 or more credit cards, depending on the credit limit assigned to each credit card.
Once you reach this limit, banks will no longer extend you any new credit because doing so will increase the bank’s risk exposure.
The article does go on to warn that lowering credit limits could hurt credit score. But I believe that it would be a temporary drop since the new card should bring the credit limit back up. The article does give an alternative:
Instead of lowering his line of credit on his Chase Sapphire Preferred in advance, Leighton could just apply for the Chase Freedom card.
He can then call and ask to transfer credit from his Chase Sapphire Preferred card to his Chase Freedom card.
That way he gets to keep his total credit line and get approved for a new card.
I personally did lower credit limits with Chase and did not notice any significant change in my score. My DH just had two cards cancelled by the issuers for non-use. I was worried that his score would decrease because of lower credit limits and lower average age of cards (they were old cards). But I saw no significant change in his score.
ETA: I just skimmed the rest of the article and saw this:
On the other hand, decreasing his credit line by $5,000 will likely have a very, very, small impact on his credit score if Leighton has 15 open credit cards!
So if he doesn’t want to call and trade credit lines, Leighton could reduce the credit line on one of his cards, and then apply for a different card from the same bank.