Due to industry regulations, Tradier limits each account registrant to 1 margin account. For example, you can have 1 individual margin account and 1 joint margin account with another person. You cannot open a 2nd individual margin account or joint margin account with the same person.
Tradier does not permit the opening of more than 15 accounts per person for those domiciled in the United States. Attempts to open more than 15 accounts will be blocking during account opening.
Foreign customers are limited to 3 total accounts with Tradier.