CHECK BEFORE ACTINGThis offer was last reported 159 days ago, on June 1, 2026. Registration deadlines and bonus windows close. We do not track whether this one is still live, so check the program's own page before acting on it.
What happened
Amex Membership Rewards is offering a 20% bonus on points transfers to Marriott Bonvoy for US cardholders. The promotion runs from June 1 through June 30, 2026. The standard transfer ratio is 1:1; during this window, it becomes 1,000:1,200. The bonus is hardcoded into the transfer ratio, allowing unlimited transfers. Transfers are typically instant. While 20% is on the lower end of historical bonuses for this pair (typically 20-35%), it may be useful for travelers needing to top off a Marriott balance for a specific award stay