I opened a cash account at IB about a month ago and just requested an upgrade to margin and was denied. They read me a form letter saying that I could apply again if my employment situtation and account balance changed in the future. (I'm self employed and trading for a living and this particular account is small, only around 20k at the moment.) I asked them what the requirements were for a margin account but none of the customer service people could or would give me any color on it. I tried to explain that I currently have other margin accounts elsewhere and want to move my entire portfolio to IB but obviously not if they couldn't give me margin, but that still didn't work. Has anyone else had this same problem or know what the requirements are? Please post here or send me a PM if you do, this is beyond frustrating.