I'm guessing that when you added the new account (the 401k), the value was entered in to the account as "cash". You were then supposed to do a bunch of "buy" transactions within that account to buy mutual funds with the cash without transferring any new money into the account. It sounds as though you may have instead transferred the mutual funds into the account in addition to the cash, thereby doubling the value of the account. How much cash do you now have in the account? You should have zero, but I'm guessing that you have an amount equal to the value of your funds. The solution is to transfer the cash out of the account and backdate the transfer to the date of account initiation.