2013 was 1st year I was involved in heavy option trading and made a sizable profit which I think needed to be reported to irs. However as of today 3.25.2014, no tax doc (namely 1099) generated by my brokerage. When I asked they say option trading tax report /1099-B/ will not be generated until 2014 April since IRS does not require them before that time. But they also said I still need to report them to IRS? How do I do it? Will gains during my 2013 investing considered and taxed as short term gain at ~39% during my 2013 tax return? Then what form do I use? Or do I use the gain/loss calculation to report it? Thanks!