I don't keep track of my trades everyday. I wait until the end of the year and run a script on my monthly statements that matches everything up (custom made software). I then check manually that my profit totals are in line with what the software is reporting based on the money I had at the beginning of the year and the money I have at the end of the year. So far this has worked well for me and I don't have to deal with the busy work of recording my trades each day into a spreadsheet. I elected mark-to-market accounting several years ago. I just give a summary of my trades to the IRS. If they want to see all of them, they know who to contact.