Johnson City property owners have until Dec. 31 to pay their municipal taxes. Penalty and interest charges will begin to accrue on Jan. 1. Meanwhile, Washington County property owners have until Feb. 28 to settle their county tax bills without penalty charges.The Washington County Trustee’s offices will be open from 8 a.m. to noon on Dec. 30 and Dec. 31 for residents who wish to pay their taxes before the end of the calendar year.Johnson City taxes can be paid in person at the Johnson City Municipal and Safety Building, 601 E. Main St., during normal business hours, which are weekdays from 8 a.m. to 5 p.m.’