Real Estate Investment Trusts (REITs): Resembling a closed-end mutual fund, REITs are formed to invest funds in a portfolio of commercial mortgages and other commercial real estate related investments (usually income properties such as retail, industry and office buildings). They issue trust units that provide small investors with the opportunity to share in the earnings of a portfolio of real estate products. The Income Tax Act exempts the trust from paying income tax on any earned income paid out to shareholders. Income tax is paid on any earnings that are retained by the trust. Dividends received from REITs however, do not qualify for the dividend tax credit. Trust units are listed and traded on a stock exchange as are shares of closed end mutual funds.