The government typically restricts 12B-1 fees to 1% of the current value of the investment on an annual basis, but they generally fall somewhere between 0.25-1%. This fee must be voted on by the mutual fund's directors, and must be disclosed in the mutual fund prospectus. Because this fee is a little less obvious (not an upfront charge like the 12B-1 fee), investors should read mutual fund documentation thoroughly to understand the fees they are paying.