All businesses should visit Maryland Business Express to register as a business and file corporate documentation as appropriate.

1. Sole Proprietor or General Partnership: No legal document filings or other formalities are required, except compliance with State and local licensing and taxation requirements. Companies that are sole proprietorships and general partnerships should visit Maryland Business Express to apply for a Tax ID Number.
2. Other types of corporations including Limited Liability Companies, Stock Corporations, Tax Exempt Nonstock Corporations, Close Corporations and Foreign Limited Liability and Corporations should register and file documents through the Maryland Business Express.
3. Other business types may also register trade names and establish tax accounts through Maryland Business Express. For business filing types not currently accepted online, please visit the Department of Assessments and Taxation website for assistance. Maryland Business Express also has links to the schedule of filing fees associated with different types of businesses.