Office of the Comptroller of Maryland, led by Comptroller Brooke E. Lierman. Working towards a more equitable, more resilient, and more prosperous Maryland.

For assistance, visit MarylandComptroller.gov/help or you may contact the Taxpayer Service Section Monday through Friday from 8:30 am until 4:30 pm by phone at 410-260-7980 from central Maryland …

Ex officio: Brooke E. Lierman, Esq., Comptroller of Maryland; Dereck E. Davis, State Treasurer; Helene T. Grady, Secretary of Budget & Management. Executive Secretary: Robert J. Rehrmann, Director, …

Maryland Tax Connect will be unavailable on Tuesday, December 30, 2025, from 9:00 PM to 11:00 PM for scheduled maintenance. During this time, you will be unable to perform any Maryland Tax …

Tax Support Services Discover the various support mechanisms the Comptroller of Maryland has in place to assist individual taxpayers with their tax filing and obligations.

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Welcome to the Maryland OneStop Portal OneStop is the central hub for Maryland State licenses, forms, certificates, permits, applications, and registrations.

Everything needed to assist the residents of Maryland with filing taxes, preventing financial abuse, claiming unclaimed property, and so much more can be found in one place.

If you filed electronically through a professional tax preparer and haven't received your refund yet, contact your preparer first to make sure that your return was transmitted to us before checking the …

The Comptroller of Maryland is the state’s elected Chief Financial Officer. The office acts as an independent voice on fiscal matters, overseeing every dollar in and every dollar out for the State.