What happens if I file my state return after the 4/15 deadline?

If you are due a refund on your 2024 tax return, there is no penalty for filing after the April 15, 2025 deadline.

If you owe taxes and file your return after April 15, 2025, the Comptroller of Maryland may charge you interest or penalties on the amount you owe.

Once the Comptroller of Maryland has processed your state tax return, they will contact you with information on any additional amounts owed due to penalties and interest.

For more information, visit the Comptroller of Maryland website.