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Maryland State Tax Refund Status Information. You can use Maryland's online services to check the status of your tax refund or to find out if they have had trouble delivering your refund by clicking below. You may also check your refund status by calling (800) 218-8160 or 410-260-7701 in Central Maryland.
Contact the Comptroller of Maryland 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.