4. Can I pay by credit card?
You can pay your Maryland tax with a credit card, using VISA, MasterCard, American Express or Discover. This service applies to taxes owed for the current year or any back year (if you have a bill). You can make your payment online or over the phone by calling 1-800-2PAYTAX (1-800-272-9829).
For more information, see Paying Maryland Taxes with a Credit Card.