Source: gerenme / GettyMaryland’s 2026 tax filing season is officially underway. According to the agency, taxpayers should expect refunds to begin going out in earnest the week of February 2. The early processing window allows the office to update fraud detection systems and verify security safeguards before the busiest stretch of the filing season. Last year, the Comptroller’s Office processed about three million returns and distributed roughly 3 billion dollars in refunds. The deadline to file 2025 Maryland state income tax returns is April 15, 2026.