Summary answer: Herndon falls under Fairfax County's standard real estate tax rate of $1.1225 per $100 of assessed value. On a $700,000 home (near the area's typical median), that's roughly $7,858 per year, or about $655 per month — closely matching the $7,365/year figure reported in one comparison based on median home price.

I'm Johnny with JQ Real Estate. Here's exactly how this breaks down.

What this rate means at different Herndon price points

Home ValueEstimated Annual Tax
$350,000 (condo segment)~$3,929
$700,000 (typical median)~$7,858
$1,000,000 (upper single-family)~$11,225

Why this genuinely beats Loudoun-adjacent Ashburn

While Fairfax County's rate is similar to many neighboring jurisdictions, the real savings for Herndon buyers comes from the lower purchase price itself — the same tax rate applied to Herndon's meaningfully lower median means a genuinely smaller total tax bill compared to Ashburn, even before factoring in any rate differences between counties.

A note on the Town of Herndon's own levy

Properties within the incorporated Town of Herndon may also see a small additional town-level tax on top of the county rate — confirm with your agent whether your specific target property falls inside town limits or in the surrounding unincorporated area, since this affects your exact total.

What to bring to your lender conversation

Come prepared with your last two years of tax returns, recent pay stubs, and a list of any other debts or assets — the more complete your picture upfront, the faster and more accurate your pre-approval will be. Herndon's genuine mix of condos, townhomes, and single-family homes means your lender should also know which property type you're targeting, since this can affect loan program eligibility and appraisal requirements.

Factor this into your real budget

Reach out and let's run your real numbers, taxes included, for your specific target property and its exact jurisdiction.

For more Herndon buyer and seller questions, visit our Herndon real estate hub.