Maryland Tax Connect

Maryland Tax Connect is the official online portal operated by the Comptroller of Maryland for managing state tax obligations. It serves individual taxpayers, businesses, and tax professionals who need to file returns, make payments, and handle registrations for various Maryland tax types. The platform consolidates services for sales and use tax, employer withholding, corporate income tax, and other business-related tax accounts into a single system. Users can register new tax accounts, submit filings electronically, view account balances, respond to notices, and manage payment plans through the portal. The system replaced several older, disconnected Comptroller filing tools to provide a unified digital interface for state tax compliance and account management.