District of Columbia Tax ID Number: FR-500 on MyTax.DC.gov

To get a District of Columbia tax ID number, file Form FR-500, the Combined Registration Application for Business DC Taxes, through the MyTax.DC.gov portal. Registration is free. The Office of Tax and Revenue (OTR) can take up to 10 business days to process the application and issue your account number, so build that lead time into your launch plan.1Department of Licensing and Consumer Protection. Verifying Tax Registration and Clean Hands

Do You Need to Register

If you operate a business inside the District, yes. Sole proprietorships, partnerships, LLCs, and corporations all file the same FR-500. Nonprofits register too, even when they expect to be exempt from certain taxes, because OTR needs the registration on file before it can recognize any exemption. If you have even one employee working in DC, you must register for employer withholding so you can remit their income tax.

The trigger is a connection to the District strong enough that DC can legally tax you. A physical office, warehouse, or retail location clearly qualifies. A purely economic connection can also do it. Remote sellers who make $100,000 or more in gross sales into DC, or complete 200 or more separate retail transactions with DC buyers, cross the economic nexus threshold and must register for sales tax collection. Those thresholds are measured over the current or previous calendar year, so a single strong holiday season can create an obligation that carries into the next year.

What to Gather Before You File

The FR-500 asks for more than most people expect, and leaving it half-finished usually means starting over. Have this ready before you open the portal:

  • Your Federal Employer Identification Number (FEIN). Sole proprietors without employees can use a Social Security Number instead.
  • Your legal business name and any trade names you use publicly.
  • Physical and mailing addresses. They can differ, but OTR wants both.
  • Your six-digit NAICS code for your primary business activity. The Census Bureau’s NAICS search tool can help you locate the right one.
  • Names, home addresses, and Social Security Numbers for every owner, partner, or corporate officer. OTR uses this to tie the business account to the individuals responsible for it.

What Tax Types the FR-500 Covers

The FR-500 registers your business for every DC tax that applies to your operations in a single filing. You complete only the parts relevant to your activities, and choosing correctly matters. Skip a tax type you actually owe and you won’t receive the correct filing schedules; that gap usually surfaces later as a penalty rather than a reminder.

  • Franchise tax (Part II). DC’s version of a corporate income tax, currently 8.25% for both corporations and unincorporated businesses.
  • Employer withholding (Part III). Required if you pay wages to anyone working in DC.
  • Sales and use tax (Part IV). Required if you sell taxable goods or services. The general rate is 6.0% through September 30, 2026, and rises to 7.0% on October 1, 2026. Prepared food and alcohol carry higher rates.
  • Personal property tax (Part V). Covers tangible business assets like equipment and furniture.
  • Other registrations. Ballpark fee, tobacco excise tax, nursing facility assessments, hospital fees, and unemployment compensation tax each have their own section.

Filing Through MyTax.DC.gov

The entire FR-500 filing happens online. Create an account at MyTax.DC.gov if you don’t already have one. The portal walks you through each section based on the tax types you select, so you won’t see questions about tobacco excise tax unless you indicate it applies.

After you complete the fields, the portal displays a summary screen for review. Check it carefully. Correcting errors after submission means contacting OTR directly. When you submit, the system generates a confirmation number. Save it. That number is your proof of filing while OTR processes the application.

Processing takes up to 10 business days.1Department of Licensing and Consumer Protection. Verifying Tax Registration and Clean Hands When OTR approves the registration, you receive a Notice of Business Tax Registration with your permanent account number, delivered through the MyTax.DC.gov portal or by mail.

Why the Tax ID Comes Before the Business License

A DC tax ID and a Basic Business License (BBL) are separate requirements, but the tax registration has to come first. You need the account number before you can apply for a BBL. The Department of Licensing and Consumer Protection lists five prerequisites every BBL applicant must satisfy:

  • Tax registration. Your FEIN or SSN must be registered with OTR.
  • Clean Hands certification. You cannot owe the District more than $1,000 in past-due taxes, fines, or penalties, and you cannot have unfiled DC tax returns.
  • Certificate of Occupancy or Home Occupation Permit, if you operate from a physical location in DC.
  • Entity registration. Corporations, LLCs, and partnerships must be registered and in good standing with the Corporations Division, with a registered agent on file.

Clean Hands catches people off guard. Under DC Code ยง 47-2862, the District will not issue or renew any license or permit if the applicant owes more than $1,000 in outstanding fines, penalties, or past-due taxes, or has failed to file required District tax returns. An old parking ticket balance or a missed estimated tax payment that pushed you over the threshold can block your entire licensing process. Entering an approved repayment plan before applying preserves your eligibility, since the statute allows an exception when the applicant is complying with an approved repayment schedule.2D.C. Law Library. District of Columbia Code 47-2862 – Prohibition Against Issuance of License or Permit

What Happens If You File Late Once You’re Registered

Once your registration is active, OTR expects returns on the schedules tied to each tax type. Sales tax returns are typically monthly. Franchise tax follows an annual cycle with quarterly estimated payments. Employer withholding returns can be monthly or quarterly depending on how much you withhold. OTR does not send warning letters before penalties start. Once a return is late, the math begins automatically, and the failure-to-file penalty applies even when no tax is owed, because DC penalizes the failure to file separately from the failure to pay.

The penalties stack. A business that files three months late and doesn’t pay owes 15% in filing penalties, 15% in payment penalties, and daily-compounding interest on top of the underlying tax. The only defense is showing reasonable cause rather than neglect, and OTR sets a high bar for that.

Getting the account number is the easy part. Picking the right tax types on the FR-500 and keeping up with the filing schedule that comes with them is where most of the work lives.