If a parsonage is provided to you, or you rent, or buy your own home use the fair rental value of the housing including utilities for the exclusion. If you buy your own home, you may still itemize the deductions for mortgage interest and property taxes. For Social Security purposes, the clergy are always considered self employed. Unless you elect out of Social Security only for your ministerial income for conscientious reasons, you are subject to self employment tax on your income. You cannot request exemption solely for economic reasons.
Special rules apply to members of religious orders who have taken a vow of poverty.