Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

How do day-traders or frequent traders handle their taxes?
Starting of 2011, your broker has to keep track of all the transactions and the cost basis, and it will be reported on your 1099-B. Also, some brokers allow downloading the data directly to your tax software or to excel charts (I use E*Trade, and last year TurboTax downloaded all the transaction directly from them).