Marriott 30-day cross-issuer rule

What it does

Marriott's card lineup spans two issuers, and the issuers police each other's recent activity. If you opened a Chase Marriott card within the last 30 days, you are not eligible for the welcome bonus on Amex's personal Marriott cards (Bonvoy Brilliant, Bonvoy Bevy). The rule is one-directional: a recent Amex Marriott open is not documented to block anything at Chase. It sits alongside the broader cross-issuer 24-month rule - receiving ANY Marriott welcome or upgrade bonus from either issuer blocks Marriott-family bonuses across both issuers for 24 months from when that bonus posted.

How it works

• The 30-day trigger is the open date of the Chase Marriott card (Boundless, Bold, Bountiful), not the application or approval date.
• Only Amex's personal Marriott cards are blocked: Bonvoy Brilliant and Bonvoy Bevy. The Marriott Bonvoy Business Amex is exempt - its terms have not been updated to lock out recent Chase Marriott holders.
• One-directional: opening an Amex Marriott card does not start a 30-day block on Chase Marriott applications.
• The separate 24-month rule is symmetric: any Marriott bonus from Chase OR Amex blocks welcome bonuses across the whole Marriott family for 24 months from bonus posting.

What to do

• If you want both issuers' Marriott cards in a short span, open the Amex personal card first, or wait 31+ days after a Chase Marriott approval.
• Plan around the 24-month rule first - it is the binding constraint for most people. The 30-day rule only matters once the 24-month window is already clear.
• The Marriott Bonvoy Business Amex is the flexible piece: it is exempt from the 30-day block.