Real Estate Assessments

Real Estate Assessments - General Information

  • Fairfax County has an annual assessment program where all real property, residential and commercial, is assessed at 100% of the estimated fair market value as of January 1 of each year.
  • Real Estate Assessment values may increase or decrease due to a variety of reasons including changes in economic conditions, structural changes, land divisions, and rezonings. If you believe that your property has been over-assessed, you may appeal your assessment.

  • The annual real estate tax is based on the January 1 assessed value and a real estate tax rate determined each year by the Fairfax County Board of Supervisors.

  • Certain districts, designated Other Tax Districts, have an additional levy added to the base tax rate.

  • Most homeowners pay Fairfax County's real estate tax as part of their monthly mortgage payment. Their mortgage company then sends the homeowner's taxes directly to the County. Some homeowners pay their real estate taxes directly to the County.

  • Homeowners whose monthly mortgage payments do not include escrow for real estate taxes are billed in two equal installments due July 28 and December 5. Check the tax calendar for other deadlines.

  • Some elderly and/or permanently disabled homeowners may be eligible for tax relief on their house and up to 1 acre of land upon which the house is located.

  • Still have questions? Check out our Frequently Asked Questions page, or contact our office. Staff will be happy to help you.

Contact Fairfax County: Phone, Email or Twitter | Main Address: 12000 Government Center Parkway, Fairfax, VA 22035
Technical Questions: Web Administrator

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