Information for Business Taxpayers

The Comptroller's Office is dedicated to making the process of filing and paying taxes, simple, safe and efficient. You may have questions before, during, or after you file your return. We're here to help. This section supplies the latest information for business taxpayers.

• What's New for 2024 (2023 Tax Year) Filing Season?
• Tax Alerts, Publications, and Releases
• Tax Calculators
• Filing Deadlines & Due Dates
• Maryland Tax Connect Portal
• Business Online Services
• Consolidation and Updating of Alcohol Forms Notice
• Pass-through Entity