Comptroller of Maryland
Maryland Taxes
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Contact Taxpayer Service

Email Security Warning!

When sending an email to the Comptroller of Maryland, do not include information such as your full social security number (use only the last 4 digits), bank account numbers, routing numbers, or any other sensitive information.

If you wish to send sensitive information, email a description of the issue (without the sensitive data), and let us know you have confidential information to send. We will reply back via an encrypted email account, which will have "#secure#" in the email subject. In reply to the secured email, you may then provide the additional detail, including the sensitive information.


You can e-mail your tax questions to us at  Please include your name, address and the last four digits of your Social Security number, or for business tax questions the Maryland Central Registration number (CR) or Federal Identification number (FEIN) in your e-mail message. This will help us generate a quick response to your inquiry.  From February 1 - April 18, we experience extremely high email volumes.  You can expect a response within 2-3 business days.

E-mail your request for tax forms to

Telephone Assistance

Assistance with Tax Questions

Call 1-800-MD TAXES or 410-260-7980 from Central Maryland. Telephone assistance is available 8:30 a.m. - 4:30 p.m., Monday through Friday.  The Comptroller of Maryland offers extended hours February 1 - April 17, 2018 Monday through Friday from 8:30 a.m. until 7:00 p.m. for telephone assistance. From February 1 - April 17 we experience extremely high call volume. As an alternative, we encourage you to send inquiries via email.

Refund Status

If you're calling about your Refund Status, you may use our automated line at 410-260-7701 or 1-800-218-8160.  Note that refund status is updated once daily at approximately 10:30 a.m.

Mailing Address

Please include your name, address, the last four digits of your Social Security number, CR or FEIN number and a daytime phone number in any correspondence that you send to us.

Mail your correspondence to:

Comptroller of Maryland
Revenue Administration Center
Taxpayer Service Section
110 Carroll Street
Annapolis, MD 21411-0001

Note: After you send your original correspondence, please do not submit any W-2s, 1099 forms or any other documentation to us unless we specifically request you to do so.

Links for Contacts by Topic
Taxpayer Assistance
Contact Information
Contacts by Topic
  Contact Field Enforcement
  Contact Admissions and Amusement Tax
  Contacts for Vendors and Developers
  Contact Motor Fuel Quality Testing
  Contact Sales and Use Tax
  Directions to Baltimore Compliance Office
  Contact Taxpayer Service
  Contact Compliance
  Contact Estate and Inheritance Taxes
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