I am a relatively new daytrader (been doing it for ~6 months) and am wondering how other people deal with the money that must be set aside for taxes. I know that next year I will probably have to file quarterly (which will solve this problem), but right now I am looking at ~30K in taxes and was wondering what I should do with this money until then. I was thinking a cd/money market that matures next March would be a good idea so that I will be earning interest. Also I figured that putting the money into a mutual fund would not be good because then I would essentially be gambling with the government's money. Wondering if anyone has any suggestions or advice from an accounting standpoint... Thanks, Ace.