Loudoun County Property Tax: A Homeowner’s Guide
As the top Loudoun County real estate agents for buyers and sellers, we often get questions about property taxes. Homebuyers want to know what they're signing up for before closing, and sellers want to understand how taxes factor into pricing and negotiation. Other homeowners want to know if their latest assessment is reasonable or worth challenging. This guide walks through the essentials, including the current rates as of 2026, how your home is assessed, and what to do if you think the county got your number wrong.
Important: Before making any decisions, be sure to consult with a qualified attorney or tax professional.
What Are Property Tax Rates in Loudoun County, VA?
For tax year 2026, the real property tax rate in Loudoun County is $0.805 per $100 of assessed value. The Board of Supervisors adopted the FY 2027 budget on April 7, 2026, and kept the real property tax rate the same as the prior year Loudoun County. On a home assessed at $800,000, that works out to about $6,440 per year in county real estate taxes.
A few things worth knowing about how the rate and bill work in practice:
- Real estate in Virginia is assessed at 100% of its fair market value, so your assessment is meant to reflect what your home would sell for on the open market as of January 1 of the tax year.
- Loudoun County real estate taxes are collected twice a year, with due dates of June 5 and December 5. (The county has noted a December 7 collection date for 2026.)
- The Commissioner of the Revenue handles assessments, and the Treasurer’s office handles billing and collection. Real estate bills go out in early May.
- Loudoun County also handles billing and collections for most of the incorporated towns in the area, including the Town of Leesburg, though town taxes are separate line items.
- The vehicle personal property tax rate for 2026 is $3.09 per $100 of assessed value, and is scheduled to drop again to $2.94 in 2027.
Learn more about property tax on the Loudoun County website.
Even though the real estate tax rate held steady, the average homeowner’s bill will rise by roughly $141 in 2026 because of higher assessed values, though that bump is more than offset for most homeowners by the reduction in the vehicle tax rate. If you’re comparing Loudoun to other areas, it also helps to remember there’s no local income tax here, which makes property tax a larger share of the total local tax picture than you’d see in some other jurisdictions.
Related: How to Look Up Loudoun County Property Tax Records and Permit History
How Are Loudoun County Property Assessments Determined?
Every year in early February, the Commissioner of the Revenue mails out assessment notices reflecting the estimated market value of your property as of January 1. For tax year 2026, notices were mailed starting February 6, and assessments are available online at loudoun.gov/ParcelDatabase. Your assessment notice is not a bill. It’s the county’s opinion of what your home is worth, and it becomes the basis for the tax bill that lands a few months later.
The 2026 numbers tell a pretty interesting story about the Loudoun real estate market. Total taxable real estate in the county is valued at $185.6 billion, an overall increase of 12% over last year. The typical single-family detached property saw its value rise 1.4% year over year, and the average townhouse was up 0.5%. Commercial real estate, led by data centers, saw much sharper increases, with total commercial value up nearly 27%. Residential growth moderated compared to the pandemic-era surges, which tracks with what we’ve been seeing on the ground as agents listing and selling homes across the county.
Assessments aren’t one-size-fits-all. Averages are just that, and individual properties may see changes that are higher or lower than the countywide numbers. A home that’s been renovated, or one in a neighborhood where recent sales have been particularly strong, may see a steeper increase. A property with deferred maintenance or in a softer micro-market may see little change at all.
Loudoun County also offers several programs that can reduce what you owe:
- Tax relief for older adults and permanently disabled residents. Qualifying homeowners can receive real estate or personal property tax relief based on income and net worth.
- Land use assessment. Property used for agricultural, horticultural, forestal, or open space purposes can be assessed based on that use, which typically results in a lower assessment than standard market valuation.
- Partial exemption for renovations. Homeowners who substantially renovate or rehabilitate residential properties may qualify for a partial exemption from real estate taxation.
- Solar energy equipment exemption. Certified solar equipment is wholly or partially exempt from local taxation, which reduces the taxable value of the property it’s installed on.
If you’re house hunting in the area and want to understand what property tax will look like on specific homes, our buyer resources page is a good starting point, and we’re happy to run the numbers on any property in our portfolio of luxury listings or elsewhere in the county.
How Do You Appeal Your Loudoun County Property Tax Assessment?
If you open your 2026 assessment notice and the number doesn’t match reality, you have options. An appeal is essentially a request to have the county reconsider its valuation, and it’s something homeowners do every year with real success when they have evidence on their side.
There are two tracks for appealing a Loudoun County property tax assessment, and they run on different timelines:
- Application for Review with the Commissioner of the Revenue. This is the first and most informal step. Property owners file an Application for Review online at loudoun.gov/reaa. For tax year 2026, that deadline was March 16. If you missed it, you can still move to the second option below.
- Appeal to the Board of Equalization. After the Commissioner’s review window closes, appeals may be made to the Board of Equalization until June 1. The Board is an independent body that reviews assessments and can adjust them based on the evidence presented. If you believe your 2026 assessment is too high and haven’t yet taken action, this is the path still open to you.
Learn more about appealing a real estate assessment on the Loudoun County website.
Winning an appeal comes down to evidence. The question isn’t whether your taxes feel too high. It’s whether the county’s assessed value accurately reflects what your home would sell for on the open market. To build a credible case, homeowners typically gather:
- Comparable sales data, focused on similar homes in your neighborhood that sold in the twelve months before January 1, 2026. Comparables should match your home in size, age, condition, and style as closely as possible.
- Evidence of condition issues, including photos and documentation of deferred maintenance, outdated systems, or structural concerns that reduce market value.
- Independent appraisals, which carry significant weight if you’ve had one done recently for a refinance or estate purpose.
- Errors in the county’s record, such as incorrect square footage, wrong bedroom or bathroom counts, or features listed that don’t exist on your property.
This is one area where working with experienced Leesburg and Ashburn Realtors can make a real difference. We pull accurate comparables every day for our clients, and if you’re a homeowner trying to assess whether an appeal is worth pursuing, starting with a free confidential home valuation gives you a data-driven baseline to compare against the county’s number. If the market value we’d recommend listing at is meaningfully lower than the county’s assessed value, that’s usually a strong signal that an appeal is worth the effort.
Related: How to Choose the Best Loudoun County Realtors for Buying or Selling
Staying Ahead of Your Loudoun County Property Tax Bill
Property taxes aren’t the most exciting part of homeownership, but they are one of the more important numbers to get right. Understanding the 2026 rate, knowing how your assessment is determined, and being ready to appeal when something looks off puts you in a stronger position as a homeowner, a buyer, or a seller. For sellers in particular, being able to speak clearly to a prospective buyer about property taxes (and about any recent assessment changes) is part of a smart listing strategy, which is something we cover in more depth in our seller resources.
Related: Understanding Closing Costs for Home Sellers in Loudoun County
Whether you are thinking about buying a home in Ashburn, Leesburg, Sterling, or Western Loudoun, selling a property this year, or just trying to make sense of your latest assessment notice, the Garrell Group team is here to help. As one of the best real estate teams in Loudoun County, we bring decades of local market knowledge to every conversation, and we’d love to help you figure out your next move. Contact us today to talk through your questions or your goals.
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Following these steps, you can increase the value of your property ahead of a home sale, without breaking the bank. Why not start making improvements today! Your home will thank you for it. In the meantime, if you are thinking about selling your home or have any questions, please don’t hesitate to contact us. We’re always happy to hear from you.
