-First half tax payments can be made through September 30th by e-check or credit card. If first half taxes are paid after the last day of February, interest will also be due. -Second half tax payments can be made through September 30th by e-check or credit card, and require interest if paid after June 15th. -Full tax payments can be made through September 30th by e-check or credit card and require interest if paid after April 30th. -Figures displayed online reflect the appropriate interest.