Hello, I am wanting to switch brokers because I've started to trade more actively. I've looked at IB, Light Speed, Speed Trader as some of the potential brokers. My biggest problem and question is the TAX ASPECT of it. With my current broker, I am able to just download the TXF and have it fill in my trades. I've only had to back fill a couple of trades as those positions were opened a few years ago. My question is, has anyone switched brokers like this and can anyone chime in on TURBO TAX and the TXF file that's used to populate the trades? I currently am carrying a capital loss. Say for EXAMPLE, if I change from Broker A to Broker B, what will happen to my current positions, etc etc. Must I find a broker that uses the same clearing house? I hope you guys know what I mean. The biggest headache is the tax part.