The Washington County trustee’s office in Jonesborough will be open Saturday to collect county property tax payments.The deadline to pay property tax bills for 2020 without a penalty is midnight Sunday.The trustee’s office in the Washington County Courthouse will be open from 8 a.m. to noon on Saturday.The last day you can make payments at the trustee’s office in Johnson City, 378 Marketplace Blvd., is Friday from 8 a.m. to 4:30 p.m.