2020 Real Estate Assessments Now Available; Average Residential Increase of 2.65%

Photo of townhomes.

More than 355,000 updated 2020 real estate assessments are available online and are being mailed to all property owners. Based on equalization changes (market-driven value increases or decreases for your home), countywide residential real estate assessments are up an average of 2.65%, with the average assessment for all homes at $580,272. In 2019, the countywide average home assessment was $565,292.

78.8% of Home Values Are Up

Almost 79% of residential property in the county increased in value over the past year due to equalization.

Nonresidential real estate values (commercial, industrial and rental apartments) increased 2.87% on average due to equalization.

Of the 355,404 taxable parcels in Fairfax County:

  • 303,680 have an assessment change.
  • 51,724 have no assessment change.

The breakdown of average home assessments (averages are not necessarily indicative of individual properties or neighborhoods):

  • Single family detached homes – $692,409, up 2.36%
  • Townhouse /duplex properties – $437,346, up 3.43%
  • Condominiums – $288,246, up 4.36%
2020 real estate assessment changes by Fairfax County supervisory district.

Why Your Assessment May Have Changed

There are several factors that affect real estate assessments:

  • Sales in the neighborhood.
  • Economic factors such as average number of days homes have been for sale and sales volume.
  • Improvements to the property (remodeling, additions).
  • New construction and rezonings.
  • Property characteristics (such as size, age, condition and amenities).

Assessments Are Not a Bill

The real estate assessment notice is not a bill. Most homeowners pay real estate tax as part of a monthly mortgage payment. Your mortgage company then sends the taxes directly to Fairfax County. However, some homeowners pay their real estate taxes directly (due July 28 and Dec. 5). Contact your mortgage company if you are not sure how your taxes are paid.

Here’s a sample assessment you’ll receive in the mail.

Sample 2020 Fairfax County real estate assessment notice.

The Tax Levy Is an Estimate

The 2020 estimated tax levy shown on your assessment is just that – an estimate. As required by state law, the estimated tax for 2020 is based on the 2020 assessment and Fairfax County’s 2019 tax rates. This is an estimate because the Board of Supervisors has not yet adopted tax rates for 2020, but will do so as part of the budget process. The “levy,” or tax, is a combination of your current assessment and the current adopted tax rates.

Important note for participants in our tax relief program for seniors and people with disabilities: The 2020 tax estimate shown on your notice does not reflect your 2020 tax relief benefit. The filing deadline for your tax relief application is April 1. You will be notified about your tax relief status by June 30.

Appealing Your Assessment

If you believe that your real estate is incorrectly assessed, you can file an appeal. Appeals should be based on either fair market value, lack of uniformity or errors in property description. Simply saying that the value has increased too much in a single year is not a legal basis for an appeal. Before filing an appeal, we encourage you to call and talk to Tax Administration staff at 703-222-8234 (TTY 711) or send an inquiry by email.

If you still wish to file an appeal, property owners may begin with an administrative appeal. Property owners are encouraged to file this appeal as early as possible. All administrative appeal applications must be postmarked by May 1 or filed online by midnight (EST) of May 1. No administrative appeals will be accepted after this date. Both non-residential and residential property appeals may be submitted in writing to the Real Estate Division, Department of Tax Administration, but only residential assessment appeals can be initiated online. You can download appeal applications online or call the DTA office to obtain a copy.

Real estate appeals can also be filed with the Board of Equalization (BOE). The BOE conducts formal hearings and considers sworn testimony. BOE appeal forms are available online or by calling the BOE office at 703-324-4891 (TTY 711). By law, all appeals to the BOE must be filed and postmarked by June 1 for this year.

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