Maria Markham Thompson, CPA, CFA
Resume & Clips
Certified Public Accountant and Freelance Financial Writer
  I do the numbers and tell you what they mean in plain English
Date                        Return/Payment Due

Jan 15                       4Q Estimated Taxes
Jan 31                       4Q Payroll Tax Return - 941

Mar 15                       C-Corp & S-Corp Income Tax Returns
Mar 31                       Business Personal Property Tax

Apr 15                        Personal Taxes & 1Q Estimated Taxes
Apr 30                       1Q Payroll Tax Return - 941*

Jun 15                       2Q Estimated Taxes

Jul 31                        2Q Payroll Tax Return - 941

Sep 15                      3Q Estimated Taxes
End of Extension for Corporate Income Tax Returns

Oct 15                       End of Extension for Personal Income Tax Returns

Oct 31                       3Q Payroll Tax Return - 941

Sales & Use Tax
    20th of month – frequency set by the State based on sales volume

*Payroll Tax Deposits -- IRS Topic 757

Payroll deposits  for small businesses are usually due on the 15th day of the month after the
payroll. Large employers (payroll taxes >$50k) make deposits  within 3 business day.  
The smallest employers, usually with household employees, file an annual form - Form 944.
Please call 2 weeks before the estimate is due
to insure that you file on time.