Basically, the conclusion is: if you have multi-broker acct and you happened to trade same ticker across multi broker, you should calculate the cost correctly (which will gain you on the cost basis) by considering the wash sale by your own, either using some tool like TradeLog or maybe Excel can do it too (I guess if you are trading 200 or less annually for that ticker)?
So eventually what your reported on your tax return will not be same as brokers' 1099B summary, so it's normal and fine for multi-brokers acct & trading same ticker among different brokers. Is it a correct statement?
