An extra fee charged by some mutual funds to Cover promotion, Distributions, Marketing expenses, and sometimes Commissions to Brokers. A genuine No-load fund does not have 12b-1 fees, although some funds Calling themselves "no-load" do have 12b-1 fees (as do some Load funds). 12b-1 fee information is disclosed in a fund's Prospectus, is included in the stated Expense ratio, and is usually less than 1%.