To register a business for DC taxes, file Form FR-500, the Combined Business Tax Registration Application, with the Office of Tax and Revenue before you begin operating. The fastest way is online through MyTax.DC.gov, which typically processes submissions within a couple of business days. Registration itself is free. Skipping it is not: operating without registering is a criminal offense punishable by a fine of up to $500, plus a civil penalty of $50 for every day you keep operating unregistered.1D.C. Law Library. District of Columbia Code 47-1805.02 – Returns – Persons Required to File
Who Has to File the FR-500
If your activity in the District creates a tax obligation, you register. That includes anyone making retail sales, any employer withholding income tax from paychecks, and every partnership, corporation, or LLC doing business in DC. Sole proprietors are covered too. Nonprofits seeking exemptions from sales or property taxes also file the FR-500 and supply documentation of their exempt status.
The form covers more than sales tax and withholding. On the same application you can register for franchise tax, unemployment compensation tax, personal property tax, the ballpark fee, tobacco excise tax, nursing facility assessments, and other specialized levies.2Office of the Chief Financial Officer Office of Tax and Revenue. Combined Registration Application for Business DC Taxes/Fees/Assessments You check the boxes for whichever apply rather than filing separate registrations.
Out-of-State Sellers
You don’t need a physical location in DC to owe registration. Out-of-state sellers must register and collect DC sales tax if, in either the current or previous calendar year, they had more than $100,000 in gross receipts from retail sales delivered into the District, or completed more than 200 separate retail sales delivered into DC. Sales through online marketplaces count toward those thresholds. Cross either line and you file the FR-500 like any local retailer.
What to Gather Before You Start
Have everything ready before you open the form. Partial applications get abandoned, and each restart wastes time. OTR expects the following:3Office of Tax and Revenue. New Business Registration
- Your Federal Employer Identification Number, or your Social Security Number if you’re a sole proprietor without employees. Federal law requires a taxpayer identification number on any return or registration; officers without an SSN must obtain an Individual Taxpayer Identification Number.4Office of the Law Revision Counsel. 26 USC 6109 – Identifying Numbers
- Your legal business structure. Sole proprietorship, partnership, LLC, corporation, or nonprofit determines how DC sets up your account.
- Names, titles, home addresses, and SSNs of the proprietor, all partners, or each principal officer.
- Your business address and every DC location that will collect sales tax.
- Formation documents. Corporations attach Articles of Incorporation, LLCs attach Articles of Organization, and businesses using a trade name attach a Certificate of Trade Name Registration.
- Your NAICS code. The FR-500 instructions include a list to help you identify it.
- The date your business activity started in DC. This sets when your tax obligations began and whether anything is owed retroactively.
- Any prior DC registration information if your entity operated under a different name or structure before.
Handle Business Licensing First
OTR’s instructions direct you to the Department of Licensing and Consumer Protection before you complete the FR-500 to determine whether your business type needs a DC business license. If it does, get the license first. The FR-500 registers you for tax purposes only; it doesn’t replace licensing, and doing these out of order creates delays.
How to Submit
Online through MyTax.DC.gov is the preferred method. From the homepage, click the FR-500 New Business Registration link and work through the screens using the information you gathered. You’ll get a confirmation number as proof of filing, and most online submissions are processed within a few business days.
If you have to file on paper, mail the completed FR-500 to the Office of Tax and Revenue, PO Box 470, Washington, DC 20044-0470. Paper forms must be signed by an authorized officer and include the formation documents and any other attachments your tax types require. Processing takes several weeks rather than several days.
What You Get Back
After OTR processes the application, you’ll receive a Notice of Business Tax Registration and a Certificate of Registration, along with your DC tax account numbers. If you registered for sales tax, DC law requires you to display the certificate at your place of business, and the certificate is nontransferable.5D.C. Law Library. District of Columbia Code 47-2026 – Certificate of Registration
Use your account numbers to log back into MyTax.DC.gov, set up your permanent profile, manage filing schedules, and track OTR correspondence about assessments or credits. If your business address, ownership, or contact details change, update the registration promptly.
Penalties for Not Registering
DC treats unregistered business activity as a criminal matter, not a paperwork lapse. Operating a trade, business, or profession subject to DC taxes without first registering carries a fine of up to $500 upon conviction, plus a civil penalty of $50 for each day of unregistered operation.1D.C. Law Library. District of Columbia Code 47-1805.02 – Returns – Persons Required to File Six months of ignoring registration produces more than $9,000 in civil penalties before back taxes even enter the calculation.
The Clean Hands Trap
Registration also connects to something most new owners don’t see coming. DC’s Clean Hands mandate blocks the District from issuing or renewing licenses, permits, grants, and government contracts to anyone who owes more than $1,000 in outstanding fines, penalties, taxes, or interest to OTR or the Department of Employment Services.6Office of Tax and Revenue. Certificate of Clean Hands The same restriction applies if you’ve failed to file required DC tax returns, regardless of amount owed.7D.C. Law Library. District of Columbia Code 47-2862 – Prohibition Against Issuance of License or Permit
If you never registered, you’ve never filed the returns that registration would have triggered, which means you owe unfiled returns by definition. That alone can block a professional license renewal or a District contract. Filing the FR-500 and staying current on returns is what keeps Clean Hands from becoming its own problem.