Loudoun County Property Tax: Lookup, Pay & Rates Guide 2026

Open Loudoun County’s real estate tax, assessment and parcel database. The database includes property information such as ownership, deed information, legal description, sales information, assessment values and house characteristics.

If address search does not work, try fewer words. Use only the street number and main street name, then compare the matching results carefully.

Review the owner display, parcel identifier, tax map number, legal description and property address. If the property recently sold, allow time for records to update and compare with deed or closing documents.

For townhomes, condos, new subdivisions or properties near town boundaries, double-check that you are opening the correct parcel record before using any tax estimate.

Check the current assessment, prior values and sales information. Because Loudoun real estate is assessed at 100% of fair market value, assessment changes are important when estimating tax.

If the assessment looks wrong, gather comparable sales, condition photos, appraisal details or evidence of record errors before contacting the county or preparing an appeal.

Once you confirm the property record, use the official payment portal to review the tax balance, installment, due date and payment history. Save the parcel details with your receipt.

Open the county’s official tax payment options page. From there, use the secure online portal or follow the listed in-person and mail payment instructions.

Use the details requested by the payment portal and match the property address, parcel, tax year and installment. If you own more than one property, do not rely on name alone.

If your mortgage company pays from escrow, verify whether a lender payment has already posted before making a duplicate payment.

Loudoun County states that real estate taxes are collected twice a year, with due dates of June 5 and December 5. Always check the actual bill or online account for the exact year and installment.

Pay early enough for processing time, especially if you are using a bank bill-pay service, mail payment or escrow arrangement.

After payment, save the receipt, confirmation number, date, payment amount and tax year. Recheck the payment history later to confirm the account updated correctly.

Start from Loudoun County’s taxes overview and relief resources. Look for eligibility rules, filing deadlines, income or asset requirements, documentation and whether the relief applies to real estate or personal property.

Prepare proof of identity, ownership, residency, age, disability status, income, assets and any other documents listed by the county. Keep copies of the application and confirmation.

After approval, check the next tax bill and payment portal to confirm the relief or exemption is reflected correctly. If it is missing, contact the county quickly and keep a written record.

Open the parcel database and compare the county record with your property facts. Look for errors in house characteristics, finished area, land details, sales history or property class.

Take screenshots and write down the parcel number, tax map number and exact data point you believe is wrong.

Prepare recent comparable sales, listing sheets, appraisals, repair estimates, photos of condition problems and any proof that the county’s property characteristics are inaccurate.

For new construction or renovated property, also keep permits, closing statements and builder documents where relevant.

Use the county’s real estate assessment resources and follow the instructions printed on the assessment notice or county appeal page. Keep copies of every form, email and confirmation.