P.O. Box 71
Englewood, CO 80151
720-214-2575
Fax: 720-214-0043

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Tax Calendar...

  • 15th of every month - Monthly basis tax depositors pay Federal and State payroll tax deposits for the prior months' activity
  • 20th of every month - Monthly basis Sales Tax payers send State and Local Sales Tax reports and payments
  • January 20th - 4th Quarter State and Local Sales Taxes are due
  • January 31st - 4th Quarter Payroll Tax reports are due (941 Form, SUTA,FUTA)
  • January 31st - 4th Quarter State Withholding Taxes are due(Qtrly Depositors)
  • January 31st - W-2 and 1099 Forms mailing deadline
  • February 28th - W-3 and 1096 Forms mailing deadline
  • March 15th - Corporate tax return deadline
  • April 15th - Personal tax return deadline
  • April 20th - 1st Quarter State and Local Sales Taxes are due
  • April 30th - 1st Quarter State Withholding Taxes are due
  • April 30th - 1st Quarter Payroll Tax reports are due (941 Form, SUTA, FUTA)
  • July 20th - 2nd Quarter State and Local Sales Taxes are due
  • July 31st - 2nd Quarter Payroll Tax reports are due (941 Form, SUTA, FUTA)
  • July 31st - 2nd Quarter State Withholding Taxes are due
  • August 15th - Personal tax return extensions expire
  • September 15th - Corp tax return extensions expire
  • October 20th - 3rd Quarter State and Local Sales Taxes are due
  • October 31st - 3rd Quarter Payroll Tax reports are due (941 Form, SUTA,FUTA)
  • October 31st - 3rd Quarter State Withholding Taxes are due

NOTICE: Please allow a minimum of 5 days processing time and 3 days mailing time prior to the filing deadlines listed above for quarterly payroll and sales tax reports and, in some cases, monthly deposit figures. Admin Power will not be responsible for late filing penalties if your bookkeeping data is not received well in advance of the deadlines.