June 15
Second quarter 2005 individual
estimated tax is due.
July 15
Deadline for filing extended
2004 calendar-year partnership
returns.
August 1
Due date for filing retirement
or employee benefit plan returns
(5500 series) for plans on a
calendar year.
August 15
Deadline for filing extended
2004 individual tax returns.
September 15
Third quarter 2005 individual
estimated tax is due.