Amex AU reporting

[Charger_Fan19]

My mom just added me to her Amex, she's had it for over a decade. As expected my card arrived with a different account number. I just got an alert that it posted to my credit file as a new account, date opened 2/14. I was hoping to take advantage of the original trade line date reporting to help my AAoA. Any chance of getting Amex to do this?

[09Lexie]

Amex does not backdate for ACMs.  Their policy is as follows:

Once you lock in your MSD (Member Since Date) the year of subsequent cc's will reflect your MSD.  Additional cc's*, will reflect the month of THAT card and the year of your MSD.  

If you are a primary cardholder, your CR's will be backdated as well.  Amex recently changed their policy to exclude the CR backdating for ACMs - when you become a primary, your CR's would be backdated for YOUR new cc. 

*personal cards - business cards it's a YMMV 

[takeshi74]

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@cowgirl79 wrote:
I was hoping to take advantage of the original trade line date reporting to help my AAoA. Any chance of getting Amex to do this?

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As Lexie indicated, nope.  AU's are not backdated to the primary member's MSD.  Future cards will be backdated to 2014 for you though.

[fungoman]

Here is an interesting scenario: What if you were an AU on an account years ago for a primary who was with AMEX since 1984. You got removed in 2009 as an AU. In 2014 you become another AU on an AMEX for a new AMEX member. What happens then?

[TheGardner]

MSD should be when you were first added as an AU.