Sorry I can't help with the tax implications, but congrats on moving away from USAA. They are great for insurance, but their investments are expensive! When my wife opened her IRA with Vanguard it was a little tricky figuring out how to accomplish the allocation we wanted on the site, but a couple phone calls to them cleared up all our questions. I would encourage you to give Vanguard a call; what we couldn't figure out after some time on the internet only took a five minute phone call. I would imagine it will take a couple days for them to sell the mutual fund shares, move the money to your brokerage account, and then buy into the new funds.