<prompt> Human: Pretty striaght forward question. Im looking to open a Roth IRA with an online service like Vangaurd or Ameritrade. The one thing I am having trouble finding information on is what the rate of taxation will be on each contribution. Is there a place can I findcalculate that info?Thanks in advance!  <response>: A Roth is funded with after tax money. That means youll take money that you already paid tax on, like money in your bank account, and you will deposit that money into your Roth. You will not pay any tax on the deposit and you will not pay any tax when you withdraw the money in retirement. 