Fairfax County Property Tax Calculator
The Fairfax County Department of Tax Administration reassesses real estate annually — unusual generosity by national standards, since many states reassess far less often — and applies the county's real estate tax rate to that value each year. Owners have a defined window to dispute a new assessment before rates are finalized. Once Fairfax County is chosen above, a home value produces a projected bill instantly.
Annual Property Tax
$6,947Monthly (Escrow)
$579Effective Rate
0.95%Fairfax County's effective rate (0.95%) is 22% higher than the Virginia average (0.78%).
Edit inputs ↑Fairfax County Effective Rate
0.95%
Vs. Virginia Average
22% higher
Virginia National Rank
#28 of 51
1 = highest statewide rate
County Median Home Value
$732,800
Estimated Annual Tax (Median Home)
$6,947
Monthly Equivalent
$579
Property tax in Fairfax County, Virginia
- The Department of Tax Administration reassesses real estate annually, with a notice mailed to owners each year showing the new value.
- The county's real estate tax rate, set during the annual budget process, is applied uniformly to assessed value across most of the county.
- Owners can appeal an assessment administratively with the department, then to the county Board of Equalization if unresolved.
- A tax relief program exists for qualifying seniors and people with disabilities that can reduce or defer the tax owed on a primary residence.
Other large Virginia counties
Effective rate = aggregate real-estate taxes paid ÷ aggregate home value (ACS 2024 5-year).
| County | Effective Rate | Median Home Value |
|---|---|---|
| Falls Church city | 1.15% | $1,055,600 |
| Manassas Park city | 1.08% | $395,900 |
| Manassas city | 0.99% | $449,900 |
| Hampton city | 0.97% | $245,700 |
| Portsmouth city | 0.95% | $246,900 |
See property tax across every county in Virginia at the Virginia property tax calculator , or check your Virginia income tax with the Virginia income tax calculator .
Frequently asked questions
How is property tax calculated in Fairfax County?
The Department of Tax Administration reassesses your real estate every year, and the county's real estate tax rate — set annually during the budget process — is billed against that figure to determine your statement.
How do I appeal my Fairfax County assessment?
An administrative appeal goes to the Department of Tax Administration before the deadline printed on your assessment notice, and the county Board of Equalization hears it further if you're unsatisfied with that outcome.
Does Fairfax County offer property tax relief for seniors?
Yes — a tax relief program can reduce or defer the real estate tax owed by qualifying senior or disabled homeowners on their primary residence, subject to income and asset limits set by the county.
Why does my Fairfax County assessment change every year?
Unlike many states that reassess on a multi-year cycle, Fairfax County reassesses real estate annually, so your assessed value tracks market movement more closely and can shift meaningfully from one year to the next even without any changes to the property itself.
Sources
Related insights
Use these guides for rule explanations, planning context, and follow-up questions beyond the calculator result.