If you receive a notice of tax assessment from the Comptroller of Maryland and you don’t agree with it, don’t sit on it. You have only 30 days from the date of the notice to either appeal the assessment or pay it and claim a refund. If you don’t appeal or pay and claim a refund within the 30-day period, the assessment becomes final and you lose your right to challenge it in Maryland Tax Court.

Timely requesting an appeal gives you the right to an informal hearing in the Comptroller’s office. If you disagree with the Comptroller’s determination after the hearing, you then have 30 days to appeal to the Maryland Tax Court. You lose the right to a hearing in the Comptroller’s office, and to appeal its decision to the Tax Court, if you do not file an appeal with the Comptroller within 30 days of the date of the notice of assessment. You can request an appeal hearing online at the Comptroller’s website.

If you disagree with an assessment or have any reason to question it, it is important that you timely file an appeal or else you will lose your right to challenge it later.

For more information, please contact Jeremy Garner at