June 15, 2010
- Second quarter 2010 estimated tax payment for individuals & calendar-year corporations.
August 2, 2010
- The 5500 Report must generally be filed by the last day of the seventh month following the end of the plan year, unless an extension has been granted. For calendar year plans, the deadline is normally July 31. Form 5500 or 5500-EZ must be filed.
- Second Quarter 941 payroll tax return for year due.
September 15, 2010
- Third quarter 2010 estimated tax payment for individuals & calendar-year corporations.
- Deadline 2009 Calendar year Tax returns for corporations with extensions of the March 15 deadline.
- Deadline 2009 Calendar year Tax returns for partnerships with extensions of the April 15 deadline.
October 1, 2010
- Deadline for establishing a Simple IRA.
October 15, 2010
- 2009 Calendar year Income Tax returns due if you filed for a six month extension using Form 4868.
- 2009 Calendar year Form 5500 -Employee Benefit Plan Income Tax returns dealine with extensions.
Novembr 1, 2010
- Third Quarter 941 payroll tax return for year due.
December 15, 2010
- Corporations, deposit fourth installment of estimated income tax for 2010.
December 31, 2010
- The last date to make payments that can be deducted from your 2010 return.
- The last date to establish a Keogh Plan so you can deduct a Keogh plan contribution on your 2010 return.
January 15, 2011
- Due date for individuals making estimated tax payments- this is the final estimate for tax year 2010.
