American Express (U.S.) Membership Rewards With 40% Transfer Bonus For Marriott Bonvoy Through June 15, 2021


American Express Membership Rewards is currently offering a 40% transfer bonus for their U.S. based members on Membership Rewards points transfers to Marriott Bonvoy through June 15th, 2021.

Additionally there is also an additional Amex MR promotional bonus of 40% to Hilton Honors going on that ends on June 15th as well.

American Express offers these bonus conversions on a revolving basis throughout the year and in various countries (different transfer conditions apply to each countries Membership Rewards program so check your personal offers online).

This current 40% Marriott Bonvoy transfer bonus is targeted to U.S. based Membership Rewards members and can be found in the online account under the Membership Rewards section.

If you don’t have you membership number added yet you need to scroll all the way to the bottom of the partner page to see the offer for hotel partner programs.

The promotion ends on June 15th.

A 40% bonus means that you will receive 1400 Marriott Bonvoy points per 1000 Membership Rewards points transferred so 1.4 points per US$ spent on categories that don’t earn a multiplier. Even with the bonus that is a very bad ratio considering the overall value of MR points, one of the most flexible points currencies out there.

The Green and Gold cards do however have many multipliers in place such as for travel and restaurant categories (the Platinum card just has 5x for flights). Some cards offer additional multipliers as part of their Covid relief policies.

Keep in mind that with the plain Amex Bonvoy card you already earn 2 points per US$ spent and 6 points per US$ spent at Marriott properties. The only way how this transfer from a plain Membership Rewards account could be worthwhile is by topping up an existing Marriott balance and then redeeming for a travel package to improve the redemption value or when earning so many MR points with basic spend on multipliers that it makes sense to transfer.

This also has a side benefit, namely that you can transfer to airlines which are currently not partnering with Membership Rewards such as Alaska Airlines, American Airlines, Lufthansa Miles&More or United Mileage Plus. (Similar to other banks such as Chase not partnering with ANA etc).


My Marriott account currently has ~ 170,000 points which would be worth almost 8 nights at a Cat 4 property (including 5th night free on one redemption).

I’d need an additional 160,000 points to order a basic Rewards Plus Travel Package for United Airlines which will give me 110,000 miles plus 7 nights at a Marriott property Cat 1-4.

160k would require me to transfer 115,000 Amex points over under this promotion in order to find the best ratio.

However this doesn’t work for everyone and this is a very far fetched example how one could make it work if you need to transfer points to United which is normally not an option with Amex. The loss would be relatively small but at least you have the currency you want in the end.


I usually wouldn’t transfer Membership Rewards to Marriott as the ratio is really horrible. Unless under very narrow circumstances I don’t believe there is much purpose and value to be found.

If you’re after Marriott points I suggest to apply for the Amex or Chase Bonvoy cards outright and stay away from transferring both Membership Rewards or Chase Ultimate Rewards to the program.

These are the Terms & Conditions for the transfer promotion:

You must be enrolled in Marriott Bonvoy™ in order to participate in this offer, visit to enroll. American Express is not responsible for availability, accommodations or any other rewards in the Marriott Bonvoy program. Once you have transferred Membership Rewards points, they become subject to the Terms and Conditions of the Marriott Bonvoy program and cannot be transferred back to your Membership Rewards program account. See Marriott Bonvoy Terms and Conditions for details. This offer is non-transferable and may not be combined with other offers. American Express in its sole discretion reserves the right to alter and or terminate these offers at any time. To be eligible to receive these offers, all Card accounts linked to an enrollee’s Membership Rewards program account must not be canceled, past due or have a return payment at the time of point redemption. Minimum transfer is 1,000 Membership Rewards points. Redeem for this exclusive offer from 12:00 a.m. MT on 3/15/2021 to 11:59 p.m. MT on 6/15/2021 to receive 40% additional Marriott Bonvoy bonus points. Please allow up to eight weeks for the additional Marriott Bonvoy bonus points to be awarded. Marriott Bonvoy bonus points do not count towards elite tier qualification.