The Fairfax County property tax rate for fiscal year 2026 is $1.1225 per $100 of assessed value for real estate, down slightly from $1.135 the year before.1Fairfax County, Virginia. Real Estate Tax Rates On a home assessed at $700,000, that base rate works out to roughly $7,858 before any additional district levies are added. Vehicles are taxed on a separate schedule at $4.57 per $100 of assessed value, with a state-funded subsidy that reduces most personal-use bills by nearly half.
Real Estate Rate and District Add-Ons
The $1.1225 base rate applies to every parcel of land and every building in the county, assessed at its estimated fair market value as of January 1. Virginia law requires that all real property be assessed at fair market value for local taxation.2Virginia Code Commission. Virginia Code 58.1-3200 – Real Estate Subject to Local Taxation; Taxable Real Estate Defined; Leaseholds
Most owners also pay a stormwater service district levy of $0.0325 per $100 of assessed value, which funds drainage infrastructure and flood-management programs. Properties in certain sanitary districts pay more: vacuum leaf collection carries a rate of $0.019 per $100 of assessed value,3Fairfax County, Virginia. Vacuum Leaf Collection and some neighborhoods pay a refuse collection levy on top of that. These charges land directly on your tax bill, so the total rate you pay depends on exactly where the property sits.
Vehicle Tax Rate and the PPTRA Subsidy
Cars, trucks, motorcycles, and trailers registered in Fairfax County are taxed at $4.57 per $100 of assessed value.4Fairfax County, Virginia. Vehicle Tax Rate The county values vehicles using the January edition of the J.D. Power Valuation Services guide, not the NADA guide many owners assume. Vehicles that aren’t listed may be valued as a percentage of their original cost.5Fairfax County, Virginia. Vehicle Assessment Methods
Virginia’s Personal Property Tax Relief Act substantially reduces what you actually pay. For tax year 2026, the relief percentage is 49%, meaning the state covers nearly half the tax on qualifying vehicles. A personal-use car valued at $10,000 generates $457 in gross tax; the subsidy knocks $223.93 off, leaving $233.07. The subsidy only applies to the first $20,000 of value, so a $30,000 car generates $1,371 in tax, with relief of $447.86, bringing the bill to $923.14.6Fairfax County, Virginia. Vehicle Tax Subsidy
To qualify, the vehicle must be owned or leased by an individual, registered with a gross weight under 10,001 pounds, and not used for business purposes. If more than 50% of your mileage is claimed as a business expense on your federal return, or if the vehicle is co-owned by a business entity, it doesn’t qualify.6Fairfax County, Virginia. Vehicle Tax Subsidy
How Your Assessment Shapes the Bill
Your tax bill is the product of two numbers: the rate and your property’s assessed value. The county’s Department of Tax Administration appraises every property annually, and your notice arrives in early February. If you think the number is too high, you have two paths.
The first is an administrative appeal filed directly with the Department of Tax Administration by April 1 of the tax year. A staff appraiser inspects the property, reviews comparable sales, and either affirms, raises, or lowers the assessed value.7Fairfax County, Virginia. Real Estate Assessment Appeals Appeals need to be grounded in fair market value, lack of uniformity with comparable properties, or errors in the property description. Arguing simply that the increase was too large in a single year is not a valid basis.
The second path is the Board of Equalization, an independent body appointed by the Board of Supervisors that holds formal hearings with authority to raise, lower, or maintain your assessment. The Board of Equalization filing deadline is June 1 of the tax year.7Fairfax County, Virginia. Real Estate Assessment Appeals You can go to the Board after an administrative outcome or skip the administrative step entirely.
Relief and Exemptions
Seniors and Persons With Disabilities
Homeowners who are at least 65 or permanently and totally disabled may qualify for a reduction or full exemption from real estate taxes.8Virginia Code Commission. Virginia Code 58.1-3210 – Exemption or Deferral of Taxes on Property of Certain Elderly Individuals and Individuals With Disabilities Relief is tied to prior-year total combined household income. For 2026:9Fairfax County, Virginia. Tax Relief for Seniors and People With Disabilities
- $60,000 or less: 100% tax relief
- $60,001 to $70,000: 75% relief
- $70,001 to $80,000: 50% relief
- $80,001 to $90,000: 25% relief
Total combined net worth cannot exceed $400,000. The home and up to one acre of land are excluded from that calculation, along with up to five acres of land that cannot be subdivided under current zoning. Permanently and totally disabled applicants may exclude the first $7,500 of their income.9Fairfax County, Virginia. Tax Relief for Seniors and People With Disabilities
Tax Deferral
If your income or net worth sits just above the relief thresholds, deferral may still be available. The deferral program allows combined income up to $100,000 and net worth up to $500,000. Deferred taxes don’t incur late penalties, but they accrue interest at the Wall Street Journal prime rate plus 1% per year, capped at 8%. The total deferred amount plus accumulated interest cannot exceed 10% of your home’s assessed value.9Fairfax County, Virginia. Tax Relief for Seniors and People With Disabilities
Disabled Veterans
Veterans rated by the U.S. Department of Veterans Affairs as 100% service-connected, permanently, and totally disabled receive a full exemption from real estate taxes on their primary residence, covering the dwelling and up to one acre of land. A surviving spouse keeps the exemption as long as they don’t remarry and may move to a different home without losing it.10Virginia Code Commission. Virginia Code 58.1-3219.5 – Exemption From Taxes on Property for Disabled Veterans
Due Dates and Late Penalties
Real estate tax is split into two installments due July 28 and December 5.11Fairfax County, Virginia. Real Estate Tax – Frequently Asked Questions When a date lands on a weekend, the deadline shifts to the next business day. Personal property tax on existing vehicles is due October 5, and vehicles purchased or moved into the county and registered after July 1 of the prior year have a separate deadline of February 15.12Fairfax County, Virginia. Tax Due Dates and Deadlines
Miss a real estate deadline and you get an automatic 10% penalty on the unpaid amount, plus interest at 1% per year. Vehicle and business personal property taxes also carry a 10% late penalty, which jumps to 25% once the balance is more than 45 days past due. Interest on delinquent vehicle taxes accrues at 5% per year.13Fairfax County, Virginia. I’ve Missed a Due Date. Now What?
You can pay online through the county’s MyFairfax portal, by mail, by phone, or in person at the Department of Tax Administration.14Fairfax County, Virginia. Pay Taxes and Fees If your mortgage servicer pays through escrow, confirm each year that the payment went in on time; the penalty for a late payment falls on the property, not the servicer.
Federal Deductibility
Fairfax County property taxes are deductible on your federal return if you itemize on Schedule A. Both real estate taxes and personal property taxes on vehicles qualify.15Internal Revenue Service. New and Enhanced Deductions for Individuals These deductions fall under the SALT cap, which limits the combined deduction for state income taxes, local property taxes, and sales taxes. For 2026, that cap is $40,400 for most filers and $20,200 for married individuals filing separately.
Itemizing only pays off if your total deductible expenses exceed the standard deduction: $32,200 for married couples filing jointly, $16,100 for single filers, and $24,150 for heads of household in 2026.16Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill In Fairfax, where real estate taxes alone can run $8,000 to $12,000 and Virginia income taxes add several thousand more, many homeowners clear that threshold. Keep your tax bills and payment confirmations as documentation.