You will pay taxes, which are pro-rated, beginning the day you close on the house. A competent Realtor can walk you through your closing costs which include, but are not limited to taxes. You can also access the County Assessor website in which the home is located. That may provide you with helpful tax information. One website is: http://www.dcassessor.org/faq-help
Feel free to call or email me for more information:
Lisa Andrews, Realtor
All the Best!