Real Property Service Center The Office of Tax and Revenue's Real Property Tax Administration is responsible for property assessments, ownership and address changes, tax billings, tax relief program administration, and land recordation for real property in the District of Columbia. If you need assistance with a real property tax matter, feel free to call or visit our Customer Service Center. For real property tax forms, visit the Tax Forms/Publications section. Assessments   Assessment Process Assessment Appeals Community Outreach Frequently Asked Questions Vacant Real Property Online Services   Bill Payment (eCheck) GIS and Mapping Services Real Property Tax Database Search Tax Bill/Payment File Download for Mortgage Companies Tax Bills   Due Dates and Delayed Bills Frequently Asked Questions Payments Tax Rates Tax Sale   Tax Relief   Homestead Deduction Frequently Asked Questions Other Credits and Deductions