By applying for a Loudoun County business license, you are registering your activity for taxation based on the annual gross receipts generated by your business. To register your business in Loudoun County and apply for a business license, you may file online. Alternatively, you may use the Loudoun County Business Tax Declaration Form , which is in a writable .pdf format and requires the free Adobe Reader. This form is to be used for the establishment of a new business tax account only. For a new business, print your completed form and mail or fax it to:

Robert S. Wertz, Jr.
Commissioner of the Revenue
P.O. Box 8000
Leesburg, VA 20177-9804
Fax: 703-777-0263

Contractors registered with the Virginia Department of Professional and Occupational Regulation should provide a copy of their current state license and a completed VWC Form 61-A, Contractor’s Certification of Insuring Liability for Workers’ Compensation in Virginia.

You may also deliver your completed forms to the Commissioner of the Revenue's office. Monday-Friday 8:30 am to 5:00 pm at one of the following office locations:

Leesburg Office
1 Harrison St. S.E.
1st Floor
Leesburg, VA 20175
703-777-0260

Sterling Office
21641 Ridgetop Cir.
Ste. 100
Sterling, VA 20166

Please keep a copy of completed forms for your records.