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.
The Comptroller of Maryland's motto, "Serving the People," is a priority throughout the agency. Staff members are devoted to providing exceptional customer service to taxpayers and other constituent groups by assisting and providing detailed information regarding taxes and other agency-related matters. Links to help topics are at the bottom of this page.
We Can Help Solve Your Tax Problem
Have Tax Questions? Contact Taxpayer Service
Telephone: Call 1-800-MD TAXES (1-800-638-2937) 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 15, 2019 Monday through Friday from 8:30am until 7:00pm for telephone assistance.
E-mail: taxhelp@comp.state.md.us. Please include your name, address and the last four digits of your Social Security number in your e-mail message. This will help us generate a quick response to your inquiry.
Mailing Address:
Comptroller of Maryland
Revenue Administration Division
Taxpayer Service Section
110 Carroll Street
Annapolis, Maryland 21411
Get Help with an Existing Tax Liability
Individual Income Tax: Call 410-974-2432 from Central Maryland or toll-free 1-888-674-0016 from elsewhere.
Business Tax: Call 410-649-0633 from Central Maryland or toll-free 1-888-614-6337 from elsewhere in Maryland.
If you forgot to file a personal income tax or business tax return, missed a deadline or have a tax liability to clear up, we can help you determine what to do next. We don't capture any personal data with this service. This is strictly for your convenience.
You can file your tax returns online, set up a payment plan online, pay by credit card, or contact us so we can help you make a payment arrangement or meet any filing requirements you may have overlooked.
File a Complaint about a Tax Preparer
If you would like to file complaints about tax return preparers you believe are engaged in improper practices, you may do so through the IRS and/or the Maryland Department of Labor, Licensing and Registration.
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