If you have not yet filed your tax return you can return to the File section and change the scheduled payment date.
If your tax return has already been filed you would need to contact Comptroller of Maryland taxpayer service. They will assist with cancelling the existing scheduled payment and will allow you to select a date or payment method of your choosing. Their contact phone number is 1-800-MD TAXES, representatives are available M- F from 8:30am -7:00pm.
