January 2010

15 – Fourth Quarter (2009) Estimated Taxes due
20 – Fourth Quarter (2009) Minnesota Sales Tax due
31 – Employer’s Quarterly Payroll tax return due
        Employer’s Annual Unemployment tax return due
        Federal Unemployment tax deposit due
        Distribute W-2, wage & tax statements to employees
        Electronic Filing of Wisconsin W-2s
        Distribute 1099's to recipients

February 2010

5 – Annual Minnesota Sales Tax return due

March 2009

1 –   Form W-3 due
        Forms 1096, 1099, & 1098 due
        Electronic Filing of Federal and Most States W-2s
15 – Corporation (or Automatic 6-month Extension) Federal Income Tax Return &
        Tax Due
31 – Electronic Filing of Federal copies of Form W-2 and W-3

April 2010

15 – Individual (or Automatic 6-month Extension) Income Tax Return & Tax Due
        Trust (or Automatic 5-month Extension) & Partnership (or Automatic 5-month 
        Extension) Income Tax Return & Tax Due
        IRA Contributions Due
        First Quarter Estimated Taxes due
20 – First Quarter Minnesota Sales Tax return due
30 – Employer’s Quarterly Payroll Tax return due
        Federal Unemployment Tax deposit due

May 2010

17 – Exempt Organization (Form 990) Income Tax Return due

July 2010

15 – Second Quarter Estimated Taxes due
20 – Second Quarter Minnesota Sales Tax due

August 2010

2 –   Employer’s Quarterly Payroll Tax return due
        Federal Unemployment Tax deposit due

September 2010

15 – Corporation Extended Income Tax return due
        Trust & Partnership Extended Income Tax return due     

October 2010

15 – Third Quarter Estimated Taxes due
        Individual Extended Income Tax return due
20 – Third Quarter Minnesota Sales Tax due

November 2010

1 –   Employer’s Quarterly Payroll Tax return due
        Federal Unemployment Tax return due

December 2010

31 – Charitable Deductions due
        State Estimated Tax payments due (if applicable)