The Comptroller of Maryland will launch Maryland Tax Connect for individual taxpayers on September 1, replacing several legacy tax systems and marking the State’s first major tax administration modernization effort in more than three decades.

Maryland Tax Connect already serves business taxpayers. Beginning September 1, individual taxpayers will also use the portal to file returns, make payments, review account information, access notices, check balances, and manage payment plans through a single online system.

According to the Comptroller’s Office, the new platform will provide real-time account information, expanded self-service options, direct debit and e-check payment capabilities, and access to filing and payment history.

The transition will require a temporary shutdown of several existing systems as the Comptroller migrates billions of tax records into the new platform. To minimize disruption, the State scheduled the transition during a period when tax filing activity is typically lower.

Taxpayers should pay close attention to several important deadlines:

• July 24: Last day to make in-person paper check payments at Comptroller branch offices for personal income, pass-through entity, and fiduciary taxes.
• July 29: Last day for individual taxpayers to electronically file returns or make payments through existing online systems.
• August 20: Last day for businesses to electronically file and pay taxes through the current Maryland Tax Connect system.
• August 21-31: Most tax systems will be unavailable during the final migration period.
• September 1: Maryland Tax Connect for individual taxpayers goes live.

During the migration period, taxpayers may continue making payments by e-check or credit card. However, the Comptroller’s Office will not post those transactions to taxpayer accounts until the new system comes online on September 1.

For counties, the modernization effort carries implications beyond individual tax filing. Counties rely heavily on local income tax revenues, and county officials have long sought administrative systems that can better accommodate changes in local tax policy, improve reporting, and reduce implementation challenges. As Maryland Tax Connect expands, counties will watch closely for opportunities to streamline local revenue administration and improve service for taxpayers.

The Comptroller’s Office has created a dedicated information hub with additional details, transition timelines, frequently asked questions, and taxpayer resources as the September launch date approaches.