What happens to my Chase checking account if there are pending transactions during the closure?
However, if you try to close your Chase checking account when it has some outstanding transactions occurring, closing of the account will only take place after the occurrences of the transaction. All checks, direct deposit or automatic payments have to be made before they are cleared. Any overdraft fees or unpaid balances and other remaining fees will also hinder the process. To avoid this sort of complications, always check on your account and ensure all those charges that have been incurred are cleared before seeking to close the account. After all these, when everything is as expected, you can then get on with the closure as you wish.
Source: https://accountingbyte.com/how-to-close-chase-checking-account/