Church Management & Tax Conferences – CMTC is recognized as the nation’s leader on tax-exempt organizations and churches. We stand ready to help you defend yourself. We are on your side. If you learn what we know, your church will grow and your books will be squeaky clean! Serving Churches, Charities and other non-profits. Learn new IRS tax Laws for Churches, Ministers and non-profits. Learn how to Start a Church with all of the proper IRS requirements.