By applying for a Loudoun County business tax account, you are registering your activity for taxation based on the annual gross receipts generated by your business and also registering business personal property located in Loudoun County for assessment. In some cases, a business may have equipment but no attributable income or income but no taxable equipment depending on situs of the business activity or equipment.
Registration for a new business is accepted online.
If you have questions about business tax or require assistance, please call the business tax division at 703-777-0260.
Contractors registered with the Virginia Department of Professional and Occupational Regulation should provide a copy of their current state license and a copy of the Contractor's Certification of Workers' Compensation Insurance Acknowledgement letter. This letter replaces the 61-A beginning with the 2017 local tax filing. Please visit the Virginia Workers' Compensation(VWC) website to input workers compensation insurance information and obtain the acknowledgement letter. Please fax the completed documentation to 703-777-0263, email to or mail to:
Robert S. Wertz, Jr.
Commissioner of the Revenue
P.O. Box 8000
Leesburg, VA 20177-9804
You may visit the Commissioner of the Revenue's office Monday-Friday 8:30 am to 5:00 pm for assistance filing or for help with business tax questions at one of the following office locations:
1 Harrison St. S.E.
Leesburg, VA 20175
21641 Ridgetop Cir.
Sterling, VA 20166