Pastor's change of status should be reported within 30 days of the change. These changes include: first-time pastoral appointment, church or conference transfer, discontinued appointment, retirement, leave of absence, housing and/or salary changes, address changes, and marital status changes. It does not take long to do it since it is done on the internet.
To change your status go to http://hr.freemethodistchurch.org/forms/pension_change_of_status.php