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Call 311 To Get It Done!
Visit montgomerycountymd.gov/311
For Emergency: 911 | Out of County: 240-777-0311

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Assistance with State or Federal Taxes
For State Tax Information, please dial 800.638.2937. For State Tax Assistance for Seniors, please dial 301.949.6030. For assistance with Federal Tax questions, please dial 1.800.829.1040.
Find more information from the following link(s):
  • Maryland State Tax Information
  • Free File


  • To speak with a Customer Service Representative, please call 311 during business hours.