The title is my question. I've enrolled in a TFSA ('high-interest' savings account...oh, I know, I know, a ridiculous 1%) at my bank, although I have yet to make a contribution. I assumed that I could contribute monthly and take advantage of varying interest rates. However, the bank states I must deposit a lump sum amount because the TFSA is 'registered'. Well, an RRSP is registered, too, and I make monthly purchases of mutual funds, etc. Is any institution allowing regular ongoing contributions?