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Respond to your notice or bill online

Our Respond to Department Notice online service is the easiest and fastest way to provide the Tax Department with additional information. You’ll receive a timely response to your inquiry (if a response is required) and resolve issues quickly.

Depending on the notice you received and your response, you may need to attach scanned documents. You can locate the form number of your letter in its bottom left-hand corner.

We continue to expand our services to allow more response options. As additional notices become available the below lists will be modified to reflect these additions. 

Select a drop-down below to find your bill or notice’s form number.

You can respond to most bills online. Enter your assessment ID number (L-#########-#), found in the upper right hand corner of your notice, and select your reason for a response. Informal and formal bill responses can now be done online. See additional information on requesting a conciliation conference to formally protest an assessment.

If you received a notice about your refund, enter the document locator number (DLN) found in the upper right corner or lower left corner of your notice to respond. For complete details on the information you will need to respond, see If we request additional information. The forms currently available for this category are:

  • DTF-973.56-O
  • DTF-973.87
  • DTF-160
  • DTF-160-A
  • DTF-161
  • DTF-161-A

If we selected your return for review and request additional information, enter your case number beginning with the letter ‘X' found in the upper right hand corner of your notice. The forms currently available for this category are:

  • DTF-973.3
  • DTF-973.39
  • DTF-973.42
  • DTF-973.52
  • DTF-973.55
  • DTF-973.65
  • DTF-973.66
  • DTF-973.70
  • DTF-973.73
  • DTF-973.84
  • DTF-973.94

If you received one of the following notices, select the notice in the drop down box to respond.

  • CT-155, Notice of Non-Receipt of Corporation Tax Return
  • ST-565, Notice of Non-Receipt of Sales and Use Tax Return
  • TR-55.6-E, Notice of Non-Receipt of MCTMT Return
  • TR-100, Sales and Compensating Use Tax Annual Filing Opportunity
  • TR-576, Notice to Provide Corrected Issuer's Allocation Percentage
  • TR-716.2, We've changed your sales tax filing status from annual to quarterly

Get started

Create your own Online Services account if you don't already have one. See our Respond to Department Notice demo for assistance. You can also grant your tax professional access to respond for you by completing E-ZRep Form TR-2000 or granting access to them through your Online Services account.

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