Will data-center tax revenue keep Loudoun business and property taxes lower?

Why this matters now: Data-center revenue is central to Loudoun’s budget and tax structure. Owners need to understand what it has accomplished, what the county has actually adopted for 2026–27 and why future relief is not guaranteed.

Data-center revenue has helped Loudoun hold tax rates below the level the county says would otherwise be required, but it does not guarantee that every business or property owner’s tax bill will fall.

Loudoun’s current data-center FAQ states that the industry generates almost half of county property-tax revenue. It also says data centers added $16 billion to the county’s real-property portfolio in 2024, bringing the total to $41 billion, and estimates that without the industry the real-property rate would likely exceed $1 per $100 of assessed value rather than the current rate.

For tax year 2026, the adopted real-property rate is $0.805 per $100 of assessed value. The FY 2027 budget, approved in April 2026, totals roughly $5.4 billion and keeps that rate unchanged. The general personal-property rate, which applies to data-center equipment and many other business assets, remains $4.15 per $100 for 2026 and 2027. The vehicle personal-property rate is $3.09 for 2026, with a planned reduction to $2.94 in 2027.

A stable rate is not the same as a stable bill. Real-estate tax equals assessed value multiplied by the rate. If commercial or residential assessments rise, the bill can rise even when supervisors keep the rate unchanged. Business personal-property tax also depends on assessed equipment value and the county’s assessment schedules, which changed for several property classes beginning January 1, 2026.

For business planning, treat data-center revenue as a major stabilizing source, not a permanent entitlement to lower taxes. Future results depend on data-center development, equipment valuations, depreciation schedules, county spending, schools, infrastructure, debt service and policy decisions. New zoning controls may also affect the pace and location of future projects.

Owners should monitor three items each budget cycle: the proposed tax rates, their own property assessments and any changes to assessment factors. A business that disputes a real-estate assessment must act within the county’s annual review and appeal windows; simply pointing to a lower rate will not change valuation.

The economic intelligence is straightforward. Loudoun’s data-center base has reduced pressure on other taxpayers and supported service growth, but individual bills still follow assessments and annual budget decisions. Forecast taxes from the adopted rates and your actual assessed values, not from the assumption that data centers will automatically lower next year’s bill.

Action checklist

• Calculate projected bills using current assessments and adopted rates, not rates alone.
• Review business-property assessment schedules and report assets accurately by acquisition year.
• Track the FY budget process and assessment appeal deadlines each year.

References and resources

• Loudoun Data Center Tax and Budget FAQ
• Loudoun FY 2027 Adopted Budget
• Loudoun 2026 Property Tax Rates
• Loudoun Business Personal Property Assessment Schedules