Quick Summary
If you are moving from Dallas to Loudoun County, here is the property tax surprise in one sentence: your property tax rate drops by more than half, but your total tax bill probably will not. Loudoun's 2026 real property tax rate is $0.805 per $100 of assessed value (Loudoun County FY2027 adopted budget, April 7, 2026), while a typical Dallas homeowner pays a stacked rate of 2% or more across the city, school district, county, and hospital district. The catch: Virginia collects the difference through a graduated income tax topping out at 5.75% and a personal property tax on your cars. This guide runs the side-by-side math so nothing surprises you after closing.
Why is Loudoun's property tax rate so much lower than Dallas?
## Quick Summary
Where does Virginia take back the difference?
Three surprises await Dallas movers. One, Loudoun's $0.805 property tax rate is roughly half the Dallas County median effective rate of 1.58%, so your bill on a bigger, more expensive house can come out lower. Two, Virginia's income tax, which does not exist in Texas, takes 5.75% of nearly all earnings above $17,000. Three, Loudoun taxes your cars at $3.09 per $100 of value in 2026, a tax Texas never charged.
What is the car tax, and why does it surprise every Texan?
## Why is Loudoun's property tax rate so much lower than Dallas?
How do assessments and due dates differ?
A Dallas bill is a stack. A typical City of Dallas homeowner pays the school district, city, county, hospital district, and college district, totaling about $2.23 per $100 before exemptions (Dallas County Tax Office 2025 rate schedules, via ownwell.com). After homestead exemptions, the county median effective rate is about 1.58% (U.S. Census Bureau American Community Survey via propertytaxbystate.com). A $500,000 Dallas home runs roughly $7,900 a year in property tax.
The side-by-side tax math
Loudoun charges one county rate, $0.805 per $100, assessed at 100% of fair market value each January 1. On an $800,000 Loudoun home, the county bill is $6,440 a year: lower property tax on a home worth $300,000 more. One reason the rate stays low is Loudoun's data center industry. A 2026 Northern Virginia Technology Council report found that without data center revenue, the residential rate would need to nearly double to about $1.537 per $100 (via progresschamber.org).
FAQs
## Where does Virginia take back the difference?
On your paycheck. Texas has no state income tax. Virginia's 2026 brackets run 2%, 3%, 5%, and 5.75% above $17,000 (Virginia Department of Taxation, via visaverge.com), effectively a near-flat 5.75% for most earners, with a 2026 standard deduction of $8,750 single or $17,500 joint. At $100,000 salary, a single filer owes roughly $4,936 (countrytaxcalc.com, 2026). This is the largest tax swing for most Dallas relocators.
Sales tax runs the other way: Dallas totals 8.25% combined, while Northern Virginia is 6%, and groceries are taxed at just 1% in Virginia.
## What is the car tax, and why does it surprise every Texan?
Texas does not tax vehicles as personal property. Virginia does, every year. Loudoun's vehicle rate is $3.09 per $100 of assessed value for 2026, dropping to $2.94 in 2027 (Loudoun County FY2027 budget). A $35,000 car costs about $1,082 a year; two $30,000 family cars run about $1,854. Budget roughly $90 to $160 a month per vehicle so the separate bill never blindsides you.
## How do assessments and due dates differ?
Texas caps annual appraisal increases on homesteads at 10% and offers a $100,000 homestead exemption against school-district taxes. Virginia assesses at 100% of fair market value every year with no statewide cap: Loudoun's assessed values rose 9.39% for 2026 excluding new construction (Loudoun County public hearing notice, March 2026), and the county estimated the average homeowner's 2026 bill would rise about $141.
Due dates differ too. Loudoun real estate taxes are billed in early May and due June 5 and December 5 (the county has noted a December 7 collection date for 2026). Dallas County taxes are due January 31, delinquent February 1.
## The side-by-side tax math
A comparison for a $150,000 household with two cars, moving from a $500,000 Dallas home to an $800,000 Loudoun home:
| Tax line | Dallas ($500K home) | Loudoun ($800K home) |
| Property tax | about $7,900 (1.58% effective) | $6,440 ($0.805 per $100) |
| State income tax | $0 | about $7,360 (joint, standard deduction) |
| Vehicle tax | $0 | about $1,854 (two $30K cars at $3.09) |
| Combined total | about $7,900 | about $15,650 |
The property tax surprise is real and favorable. But income tax and car tax add roughly $9,200 a year Texas never charged. Run the whole stack, not just the mortgage, before deciding what you can afford in Loudoun.
## FAQs
Moving from Dallas to Loudoun County trades one tax structure for another: lower property taxes and cheaper everyday sales tax, in exchange for Virginia income tax and the annual car tax. Run the full stack before you shop and you will know your number. For help finding the right Loudoun neighborhood for your budget, from Ashburn and Leesburg to Sterling and South Riding, text Cornerstone Realty Group at (571) 441-1031 for a 5-minute call and a personalized home search.
Sources: Loudoun County FY2027 adopted budget (loudoun.gov, April 7, 2026); Loudoun County public hearing notice of proposed real property tax increase (March 2026); Dallas County Tax Office 2025 rate schedules via ownwell.com; U.S. Census Bureau American Community Survey via propertytaxbystate.com; Virginia Department of Taxation 2026 brackets via visaverge.com; Northern Virginia Technology Council 2026 fiscal report via progresschamber.org. Educational content, not professional advice.
FAQ
Is Virginia's property tax really lower than Texas?
On the rate, yes. Loudoun charges $0.805 per $100 in 2026, versus a Dallas County median effective rate of about 1.58%. Most relocators pay less property tax in Loudoun on a more expensive home.
I work remotely for a Texas employer. Do I still owe Virginia income tax?
Yes, if you live in Virginia. The state taxes residents on their income regardless of where their employer is headquartered. Confirm with a tax professional, especially in the year you move.
When do I start paying the car tax after moving to Loudoun?
Vehicles garaged in the county are subject to the tax, and the Commissioner of the Revenue picks up newly registered vehicles. Register your cars in Virginia promptly after the move and expect the first bill on the county's normal cycle.
When are Loudoun County property taxes due?
Real estate taxes are billed in early May and due in two installments, June 5 and December 5 (the county has noted a December 7 collection date for 2026). Mark both dates, because Virginia's split schedule catches newcomers used to a single January deadline.