Property Taxes in Ashburn
Loudoun County's real estate tax rate for tax year 2026 is $0.805 per $100 of assessed value -- meaningfully lower than Arlington County's $1.053 in this project's sibling record -- a direct, quantified consequence of data centers funding an estimated 38% of Loudoun's FY2026 General Fund revenue and paying $733 million in property taxes in 2024 alone.
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Learn moreThe Tax-Year-2026 Rate, and a Worked Example on the Primary Median-Home Figure
Loudoun County's real property tax rate for tax year 2026 is $0.805 per $100 of assessed value. Applied to this record's primary $699,619 median-home figure (see the housing-market topic page), that works out to roughly $5,632/year in real estate tax -- notably lower than the roughly $8,614/year figure this project's Arlington, VA sibling record calculated on its own, higher median home price and higher tax rate.
Why Loudoun's Rate Runs Lower: The Data-Center Tax Base, Quantified
As detailed in the base record, data centers are cited as generating 38% of Loudoun County's General Fund revenue in the FY2026 budget and paid $733 million in property taxes in calendar year 2024 alone -- about one-third of the county's total property tax collections that year. A separate 2026 Mangum Economics/Northern Virginia Technology Council report estimated that without that revenue, Loudoun's residential tax rate would need to rise from its actual $0.805 to roughly $1.537 per $100 -- a 91% increase -- adding an estimated $5,800/year to the typical Loudoun homeowner's bill (illustrated on an $800,000 assessed home: roughly $6,440/year at the actual rate vs. roughly $12,296/year at the counterfactual rate). This is a real, directly quantified, and favorable local-tax dynamic that few other markets in this project's build share.
Real Estate Tax Relief for Seniors and the Disabled: Real, and Potentially Substantial
Loudoun County's Real Estate Tax Relief program provides full exemption from real estate tax on a home and up to three acres of land for homeowners 65+ or totally/permanently disabled with combined gross household income (owner, spouse, and resident relatives) up to $87,000, with a broader tiered exemption-and-deferral structure extending to $108,000 in income and $520,000 in assets. Renewal filing deadline for existing participants is April 1, 2026; first-time applicants have until December 31, 2026 -- confirm current-year specifics directly with Loudoun County's Division of Tax Exemptions & Deferrals.
A Real, Disclosed Risk to This Favorable Tax Picture: The 2026 Moratorium Debate
As detailed on the jobs-economy topic page, Loudoun County's Board of Supervisors moved toward a formal moratorium on new data-center applications in mid-2026 amid documented resident backlash over noise, grid strain, and diesel-generator emissions. Should new data-center development slow meaningfully going forward, the county's own economic modeling suggests real estate tax rates could face future upward pressure absent continued growth in the data-center tax base -- a real, current, and disclosed risk to the favorable rate picture described above, not a guaranteed permanent condition.
No State-Level Property Tax; Confirm the Current Rate Structure Directly
Virginia property tax is levied entirely at the local (county) level -- there is no separate state property tax layered on top of Loudoun's county rate. Because Loudoun's data-center-driven tax base and its FY2026/tax-year-2026 rate are both real, current, and subject to change in future budget cycles (especially given the moratorium debate above), confirm the actual current bill for a specific property directly with the Loudoun County Assessor rather than relying on any single percentage figure in this file.
Key takeaways
- Loudoun's tax-year-2026 real estate tax rate is $0.805 per $100 of assessed value -- on this record's $699,619 median-home figure, that's roughly $5,632/year, notably lower than Arlington's rate/tax burden in this project's sibling record.
- This lower rate is a direct, quantified consequence of the data-center tax base: data centers fund an estimated 38% of Loudoun's FY2026 General Fund revenue and paid $733 million in property taxes in 2024 alone; without that revenue, the rate would need to rise roughly 91% (to ~$1.537/$100), per a 2026 economic report.
- Loudoun's Real Estate Tax Relief program offers full exemption up to $87,000 combined income (tiered relief to $108,000 income/$520,000 assets) for eligible 65+/disabled homeowners -- renewal deadline April 1, 2026; first-time deadline December 31, 2026.
- A real, disclosed risk: Loudoun's 2026 move toward a data-center-application moratorium could put future upward pressure on tax rates if new data-center development slows meaningfully -- not a guaranteed permanent condition.
- Virginia property tax is purely local -- no state property tax layer. Confirm the actual current bill for any specific property directly with the Loudoun County Assessor given real, ongoing rate and land-use uncertainty.
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