GAD's Online Service Center

System Availability - The GAD Online Service center is available 24 hours a day, 7 days a week from any home, office, or public access point. However, information may not be available during times of system maintenance.
For assistance - contact the General Accounting Division:

• By phone Monday through Friday between 8:30 a.m. and 4:30 p.m. EST. at 410-260-7813 or
  toll-free at 888-784-0144
• By email at GAD@marylandtaxes.gov