The deadline to pay delinquent taxes before the Tax Certificate Sale is Tuesday, May 31st. You can pay online with a credit card. In person payments must be received in the office by 4:30 p.m. on the 31st. Payment can be made in person by cash, cashier's check, money order or credit card. A 2.5% convenience fee is charged by the card processor on all credit card payments both online and in person. Offices are closed Monday, May 30th in observance of Memorial Day.