Opening five credit cards within 24 months will render you ineligible for any further Chase credit cards, until that five number has dropped to, at the most, four credit cards within the last 24 months. While not published by the bank, the Chase 5/24 rule is widely accepted as truth by the miles and points community after years of shared and collected experiences.

Business credit cards do not, anecdotally, count in your Chase 5/24 total.