Password Security - All taxpayers should take normal precautions for maintaining the security of their password applicable to this Web site. Business taxpayers using this Web site may wish to establish internal procedures for changing passwords and/or secret question upon the termination, resignation, or reassignment of employees using this Web site on its behalf.

Submit your tax payment before 4:00 PM Mountain Time for credit to your account on that date. You must still mail-in required forms for many types of tax payments including sales tax. Failure to do so may result in penalty and interest assessments.