Our “cut-off” is the last date we can accept a tax return and still commit to having it ready for filing by the April 30 deadline.  Each office establishes its own policy and date.  Below are the cut-off dates for those office that have a cut-off policy:-
Burnaby:   April 27, 2011 (note they are closed May 3)
Grand Forks:  April 18, 2011 (and note they are “closed” on April 30)
Vernon: April 18, 2011 (and note they are “closed” on April 30)