When adding my ITIN at the branch to the BofA checking and Travel Rewards Card I got a message from Equifax the same day that there were changes to my score. Vantage went up by +1 and FICO +10. BofA CC already was reporting to the Bureaus, but it seems an ITIN on file is increasing your score. Many people here use Amex Global Transfer without an ITIN, so just a recommendation