I am ready to perparing my tax and I noticed that there is an adjustment to the cost basis of my mutual fund which comes from a return of capital. How do you take this into account for the tax purpose? Am I supposed to deduct this amount from the " Cost" I paid to purchase the mutual fund? What is teh easiest way to track the large gain when I sell it out ? That is to say, if I am re-investing the dividends from the funds, need I add these into the basis?? I am a rookie to this kind of information. I am really not certain about this. Any help, will be appreciated!